Yuxiang primary school
(full name)
Basic question:
⑴ 1 1 3 1 3
4 ÷ 1 ○4 ÷ ○
2 2 4 3 4
(2) 1 1 1
× 3 = ( )= ÷( )
4 5 6
( )
(3)45 minutes is 1 hour.
( ) 。
1 1
(4) A number equals B number, A number is 90, and B number is ().
5 6
( )
(5) A is 5, B is 7 and B is greater than A..
( ) 。
( )
(6) The ratio of boys to girls in a class is 3: 4, and boys account for the whole class.
( )。
2
(7) if A: B = 1:, then B: A = (): ()
five
(8) (X- 1):0.4=6 X=()
(9) A number is 4/5 of B number, B is A's (), and B accounts for A and B's ().
The result of (10)a divided by b is 1.2, so b:a= ().
(1 1) Mom bought 5/6 meters of cloth and spent 18 yuan. How much does it cost to buy 7/ 10 meters of cloth?
(12) Aunt Wang wants to pack 2,000 Jin of newborn food, 4/5 Jin in each bag and 3/5 in each bag. How many bags have you packed?
(12) The moon is the natural satellite of the Earth and the closest celestial body to the Earth. Its average diameter is 3476 kilometers, which is smaller than the diameter of the earth.
8/ 1 1 The ball is small. What is the average diameter of the earth? (Numbers are reserved as integers)
(13) The school bought some books, including 72 story books, just 3/5 of the total. How many books did the school buy?
(14) A car travels from A to B. After 4/7 of the journey, there is still 18km from B. How many kilometers is there between A and B?
(15) Processing a batch of parts, Master Wang completed 360 pieces, accounting for 2/3 of the total. How many pieces are there in this batch?
Xiaoming has read a book. On the first day, he read 56 pages, which is 2/3 of the total pages of the book. The next day, he read three-sevenths of the book. How many pages did he read the next day?
⒅ Three workshops have 1400 people * * *. The ratio of A, B and C is 39: 52: 49. How many people are in each of the three workshops?
Pet-name ruby The store shipped 400kg of sugar, 84kg on the first day and 53kg on the second day. After the third day, 2/5 of this batch of white sugar was not sold. How many Jin did you sell on the third day?
⒇ Insert a 9-meter-long bamboo pole into the pool, 1/4 is exposed to the water, and115 is inserted into the mud. How deep is the swimming pool?
(2 1) Miss Li bought 7 kilograms of chemicals for the experiment. If each group needs1/4kg, how many groups can it be divided into?
(22) A box of milk weighs 9/5 kg and is distributed to three children on average. How many kilograms of milk should each child drink?
(23) Two-thirds of my brother wrote 24 words. How many words does my brother write every hour on average?
Four fifths of a book is 80 pages. How many pages are there in this book?
(25) There are 60 students in Class 4, Grade 6, with 2/9 more girls than boys. How many boys and girls are there?
(26) The circumference of a rectangle is 192 cm, the length-width ratio of the rectangle is 5: 3, and how many square centimeters is the area of the rectangle?
(27) A rectangle is 6 cm long, which is more than its width 1/5. What's its width?
The circumference of a square is 5/6 meters. What is the area of a square?
(29) During the Golden Week of May Day, the ticket revenue of nanshan park on the first day was 80,000 yuan, a decrease of 15 compared with the second day. How much is the ticket income for the next day?
(30) There are 30 people in the art group, more than the model airplane group 15. How many people are there in the model airplane group?
(3 1) Lao Zhang has to travel 25% from place a to place b, leaving 126 km. How many kilometers is the whole journey from A to B?
(32) Red Star TV Factory planned to produce 240 TV sets in May, but actually produced 13 more than planned. How many TV sets did it actually produce?
A story book has 100 pages. I read 14 of the total on the first day, and 15 of the total on the second day. How many pages have you read in two days? How many pages are left to read?
(34) A canteen brought 2 10 tons of vegetables, used 37 tons, how many tons are left?
(34) There are 24 boys and 20 girls in class 6/kloc-0 in Yuhong Primary School, with boys accounting for () () and girls accounting for () ().
Development issues:
1. There are 480 fewer chickens than ducks in the farm, and there are more chickens in Abby Mallard 1\4. How many chickens and ducks are raised in the farm?
There was a batch of drinks in the store, including 25 cases of coke, each containing 24 bottles. It accounts for 2/5 of the drinks, and soft drinks account for 3/50 of the total drinks. How many bottles of soda are there?
13. The sporting goods store repurchased 24 basketballs, which is exactly 4/5 of the number of football repurchases. After selling some basketballs, the number of basketballs is 2/3 of that of football. How many basketballs have been sold?
4. A piece of cloth used 3/4 meters for the first time, left 3/4 meters for the second time and 6 meters for two times. How many meters is this cloth?
The weight of a bucket of water is exactly equal to 3/4 of this bucket of water plus 3/4 kilograms. How much does this bucket of water weigh?
6. Yangxin Village plans to afforest 140 hectares this year, which is only 7/ 10 of the actual afforestation. However, the actual afforestation area this year is two-fifths more than last year. How many hectares are actually planted this year?
7. Xiaoming and Dajun each have a few dollars. First, Xiaoming gave half of the money to the army, and then the army gave him 1/3 of the money. Later Xiao Ming gave all his money 1/4 to the army. At this time, Xiaoming has 675 yuan, and the army has 1, 325 yuan. How much money do they have?
8. In the new school year, the number of boys increased by 25, while the number of girls decreased by 5%, and the total number increased 16. How many male students are there?
9. Two piles of coal are *** 1350 tons. After transporting 50 tons from the first pile, the remaining two piles are equal. How much does the second pile weigh?
10. A store shipped 1800kg vegetables, which were sold out in two days. The first day is more than the second day 14. How many kilograms did you sell in two days?
1 1. There is a batch of goods, all of which are more than 23 tons, leaving 15 tons. How many tons are there?
12. Qiang Qiang and his father went fishing, and Qiang Qiang caught 5 kilograms, which was just less than 12. How many kilograms of fish did his father catch?
13. When calculating, a classmate divides by 4/5 and multiplies it by 4/5, and the result is 8. Can you work out the correct result?
14. There are two square bricks with different sizes, and the side length ratio is 2: 3. What is the area ratio of two bricks?
15. A rope was cut by 3/8 for the first time, and the remaining 1/5 for the second time, leaving 24 meters. How many meters was it originally?
16.BC is 6/7 decimeter long, AF is 6/5 decimeter long, and DE divides F into three parts. What is the area of triangle BEC?
Unit 3 Final review of fractional division
Yuxiang primary school
(full name)
Basic question:
⑴ 1 1 3 1 3
4 ÷ 1 ○4 ÷ ○
2 2 4 3 4
(2) 1 1 1
× 3 = ( )= ÷( )
4 5 6
( )
(3)45 minutes is 1 hour.
( ) 。
1 1
(4) A number equals B number, A number is 90, and B number is ().
5 6
( )
(5) A is 5, B is 7 and B is greater than A..
( ) 。
( )
(6) The ratio of boys to girls in a class is 3: 4, and boys account for the whole class.
( )。
2
(7) if A: B = 1:, then B: A = (): ()
five
(8) (X- 1):0.4=6 X=()
(9) A number is 4/5 of B number, B is A's (), and B accounts for A and B's ().
The result of (10)a divided by b is 1.2, so b:a= ().
(1 1) Mom bought 5/6 meters of cloth and spent 18 yuan. How much does it cost to buy 7/ 10 meters of cloth?
(12) Aunt Wang wants to pack 2,000 Jin of newborn food, 4/5 Jin in each bag and 3/5 in each bag. How many bags have you packed?
(12) The moon is the natural satellite of the Earth and the closest celestial body to the Earth. Its average diameter is 3476 kilometers, which is smaller than the diameter of the earth.
8/ 1 1 The ball is small. What is the average diameter of the earth? (Numbers are reserved as integers)
(13) The school bought some books, including 72 story books, just 3/5 of the total. How many books did the school buy?
(14) A car travels from A to B. After 4/7 of the journey, there is still 18km from B. How many kilometers is there between A and B?
(15) Processing a batch of parts, Master Wang completed 360 pieces, accounting for 2/3 of the total. How many pieces are there in this batch?
Xiaoming has read a book. On the first day, he read 56 pages, which is 2/3 of the total pages of the book. The next day, he read three-sevenths of the book. How many pages did he read the next day?
⒅ Three workshops have 1400 people * * *. The ratio of A, B and C is 39: 52: 49. How many people are in each of the three workshops?
Pet-name ruby The store shipped 400kg of sugar, 84kg on the first day and 53kg on the second day. After the third day, 2/5 of this batch of white sugar was not sold. How many Jin did you sell on the third day?
⒇ Insert a 9-meter-long bamboo pole into the pool, 1/4 is exposed to the water, and115 is inserted into the mud. How deep is the swimming pool?
(2 1) Miss Li bought 7 kilograms of chemicals for the experiment. If each group needs1/4kg, how many groups can it be divided into?
(22) A box of milk weighs 9/5 kg and is distributed to three children on average. How many kilograms of milk should each child drink?
(23) Two-thirds of my brother wrote 24 words. How many words does my brother write every hour on average?
Four fifths of a book is 80 pages. How many pages are there in this book?
(25) There are 60 students in Class * * * in Grade 6 (4), with 2/9 more girls than boys. How many boys and girls are there?
(26) The circumference of a rectangle is 192 cm, the length-width ratio of the rectangle is 5: 3, and how many square centimeters is the area of the rectangle?
(27) A rectangle is 6 cm long, which is more than its width 1/5. What's its width?
The circumference of a square is 5/6 meters. What is the area of a square?
(29) During the Golden Week of May Day, the ticket revenue of nanshan park on the first day was 80,000 yuan, a decrease of 15 compared with the second day. How much is the ticket income for the next day?
(30) There are 30 people in the art group, more than the model airplane group 15. How many people are there in the model airplane group?
(3 1) Lao Zhang has to travel 25% from place a to place b, leaving 126 km. How many kilometers is the whole journey from A to B?
(32) Red Star TV Factory planned to produce 240 TV sets in May, but actually produced 13 more than planned. How many TV sets did it actually produce?
A story book has 100 pages. I read 14 of the total on the first day, and 15 of the total on the second day. How many pages have you read in two days? How many pages are left to read?
(34) A canteen brought 2 10 tons of vegetables, used 37 tons, how many tons are left?
(34) There are 24 boys and 20 girls in class 6/kloc-0 in Yuhong Primary School, with boys accounting for () () and girls accounting for () ().
Development issues:
1. There are 480 fewer chickens than ducks in the farm, and there are more chickens in Abby Mallard 1\4. How many chickens and ducks are raised in the farm?
There was a batch of drinks in the store, including 25 cases of coke, each containing 24 bottles. It accounts for 2/5 of the drinks, and soft drinks account for 3/50 of the total drinks. How many bottles of soda are there?
13. The sporting goods store repurchased 24 basketballs, which is exactly 4/5 of the number of football repurchases. After selling some basketballs, the number of basketballs is 2/3 of that of football. How many basketballs have been sold?
4. A piece of cloth used 3/4 meters for the first time, left 3/4 meters for the second time and 6 meters for two times. How many meters is this cloth?
The weight of a bucket of water is exactly equal to 3/4 of this bucket of water plus 3/4 kilograms. How much does this bucket of water weigh?
6. Yangxin Village plans to afforest 140 hectares this year, which is only 7/ 10 of the actual afforestation. However, the actual afforestation area this year is two-fifths more than last year. How many hectares are actually planted this year?
7. Xiaoming and Dajun each have a few dollars. First, Xiaoming gave half of the money to the army, and then the army gave him 1/3 of the money. Later Xiao Ming gave all his money 1/4 to the army. At this time, Xiaoming has 675 yuan, and the army has 1, 325 yuan. How much money do they have?
8. In the new school year, the number of boys increased by 25, while the number of girls decreased by 5%, and the total number increased 16. How many male students are there?
9. Two piles of coal are *** 1350 tons. After transporting 50 tons from the first pile, the remaining two piles are equal. How much does the second pile weigh?
10. A store shipped 1800kg vegetables, which were sold out in two days. The first day is more than the second day 14. How many kilograms did you sell in two days?
1 1. There is a batch of goods, all of which are more than 23 tons, leaving 15 tons. How many tons are there?
12. Qiang Qiang and his father went fishing, and Qiang Qiang caught 5 kilograms, which was just less than 12. How many kilograms of fish did his father catch?
13. When calculating, a classmate divides by 4/5 and multiplies it by 4/5, and the result is 8. Can you work out the correct result?
14. There are two square bricks with different sizes, and the side length ratio is 2: 3. What is the area ratio of two bricks?
15. A rope was cut by 3/8 for the first time, and the remaining 1/5 for the second time, leaving 24 meters. How many meters was it originally?
16.BC is 6/7 decimeter long, AF is 6/5 decimeter long, and DE divides F into three parts. What is the area of triangle BEC?
Unit 3 Final review of fractional division
Yuxiang primary school
(full name)
Basic question:
⑴ 1 1 3 1 3
4 ÷ 1 ○4 ÷ ○
2 2 4 3 4
(2) 1 1 1
× 3 = ( )= ÷( )
4 5 6
( )
(3)45 minutes is 1 hour.
( ) 。
1 1
(4) A number equals B number, A number is 90, and B number is ().
5 6
( )
(5) A is 5, B is 7 and B is greater than A..
( ) 。
( )
(6) The ratio of boys to girls in a class is 3: 4, and boys account for the whole class.
( )。
2
(7) if A: B = 1:, then B: A = (): ()
five
(8) (X- 1):0.4=6 X=()
(9) A number is 4/5 of B number, B is A's (), and B accounts for A and B's ().
The result of (10)a divided by b is 1.2, so b:a= ().
(1 1) Mom bought 5/6 meters of cloth and spent 18 yuan. How much does it cost to buy 7/ 10 meters of cloth?
(12) Aunt Wang wants to pack 2,000 Jin of newborn food, 4/5 Jin in each bag and 3/5 in each bag. How many bags have you packed?
(12) The moon is the natural satellite of the Earth and the closest celestial body to the Earth. Its average diameter is 3476 kilometers, which is smaller than the diameter of the earth.
8/ 1 1 The ball is small. What is the average diameter of the earth? (Numbers are reserved as integers)
(13) The school bought some books, including 72 story books, just 3/5 of the total. How many books did the school buy?
(14) A car travels from A to B. After 4/7 of the journey, there is still 18km from B. How many kilometers is there between A and B?
(15) Processing a batch of parts, Master Wang completed 360 pieces, accounting for 2/3 of the total. How many pieces are there in this batch?
Xiaoming has read a book. On the first day, he read 56 pages, which is 2/3 of the total pages of the book. The next day, he read three-sevenths of the book. How many pages did he read the next day?
⒅ Three workshops have 1400 people * * *. The ratio of A, B and C is 39: 52: 49. How many people are in each of the three workshops?
Pet-name ruby The store shipped 400kg of sugar, 84kg on the first day and 53kg on the second day. After the third day, 2/5 of this batch of white sugar was not sold. How many Jin did you sell on the third day?
⒇ Insert a 9-meter-long bamboo pole into the pool, 1/4 is exposed to the water, and115 is inserted into the mud. How deep is the swimming pool?
(2 1) Miss Li bought 7 kilograms of chemicals for the experiment. If each group needs1/4kg, how many groups can it be divided into?
(22) A box of milk weighs 9/5 kg and is distributed to three children on average. How many kilograms of milk should each child drink?
(23) Two-thirds of my brother wrote 24 words. How many words does my brother write every hour on average?
Four fifths of a book is 80 pages. How many pages are there in this book?
(25) There are 60 students in Class 4, Grade 6, with 2/9 more girls than boys. How many boys and girls are there?
(26) The circumference of a rectangle is 192 cm, the length-width ratio of the rectangle is 5: 3, and how many square centimeters is the area of the rectangle?
(27) A rectangle is 6 cm long, which is more than its width 1/5. What's its width?
The circumference of a square is 5/6 meters. What is the area of a square?
(29) During the Golden Week of May Day, the ticket revenue of nanshan park on the first day was 80,000 yuan, a decrease of 15 compared with the second day. How much is the ticket income for the next day?
(30) There are 30 people in the art group, more than the model airplane group 15. How many people are there in the model airplane group?
(3 1) Lao Zhang has to travel 25% from place a to place b, leaving 126 km. How many kilometers is the whole journey from A to B?
(32) Red Star TV Factory planned to produce 240 TV sets in May, but actually produced 13 more than planned. How many TV sets did it actually produce?
A story book has 100 pages. I read 14 of the total on the first day, and 15 of the total on the second day. How many pages have you read in two days? How many pages are left to read?
(34) A canteen brought 2 10 tons of vegetables, used 37 tons, how many tons are left?
(34) There are 24 boys and 20 girls in class 6/kloc-0 in Yuhong Primary School, with boys accounting for () () and girls accounting for () ().
Development issues:
1. There are 480 fewer chickens than ducks in the farm, and there are more chickens in Abby Mallard 1\4. How many chickens and ducks are raised in the farm?
There was a batch of drinks in the store, including 25 cases of coke, each containing 24 bottles. It accounts for 2/5 of the drinks, and soft drinks account for 3/50 of the total drinks. How many bottles of soda are there?
13. The sporting goods store repurchased 24 basketballs, which is exactly 4/5 of the number of football repurchases. After selling some basketballs, the number of basketballs is 2/3 of that of football. How many basketballs have been sold?
4. A piece of cloth used 3/4 meters for the first time, left 3/4 meters for the second time and 6 meters for two times. How many meters is this cloth?
The weight of a bucket of water is exactly equal to 3/4 of this bucket of water plus 3/4 kilograms. How much does this bucket of water weigh?
6. Yangxin Village plans to afforest 140 hectares this year, which is only 7/ 10 of the actual afforestation. However, the actual afforestation area this year is two-fifths more than last year. How many hectares are actually planted this year?
7. Xiaoming and Dajun each have a few dollars. First, Xiaoming gave half of the money to the army, and then the army gave him 1/3 of the money. Later Xiao Ming gave all his money 1/4 to the army. At this time, Xiaoming has 675 yuan, and the army has 1, 325 yuan. How much money do they have?
8. In the new school year, the number of boys increased by 25, while the number of girls decreased by 5%, and the total number increased 16. How many male students are there?
9. Two piles of coal are *** 1350 tons. After transporting 50 tons from the first pile, the remaining two piles are equal. How much does the second pile weigh?
10. A store shipped 1800kg vegetables, which were sold out in two days. The first day is more than the second day 14. How many kilograms did you sell in two days?
1 1. There is a batch of goods, all of which are more than 23 tons, leaving 15 tons. How many tons are there?
12. Qiang Qiang and his father went fishing, and Qiang Qiang caught 5 kilograms, which was just less than 12. How many kilograms of fish did his father catch?
13. When calculating, a classmate divides by 4/5 and multiplies it by 4/5, and the result is 8. Can you work out the correct result?
14. There are two square bricks with different sizes, and the side length ratio is 2: 3. What is the area ratio of two bricks?
15. A rope was cut by 3/8 for the first time, and the remaining 1/5 for the second time, leaving 24 meters. How many meters was it originally?
16.BC is 6/7 decimeter long, AF is 6/5 decimeter long, and DE divides F into three parts. What is the area of triangle BEC?
1, please fill in.
(1) In the same circle, all radii are () and all diameters are.
All (), the diameter is radius (), and the radius is the same as.
The ratio of diameters is ().
(2) Separate the two corners of the compass so that the distance between the two feet is 2.5cm, thus,
The radius of the drawn circle is () and the diameter is ().
(3) The circumference of the bottom of the round vase is 12.56 cm, the radius of the bottom is () cm, and the area of the bottom is () cm 2.
(4) The radius of circle A is 3cm, and the diameter of circle B is 9cm.
Then, the ratio of perimeter of A and B is (), and the ratio of area of A and B is ().
2. judge. (Draw √ in brackets correctly and × in brackets incorrectly. )
A (1) circle has countless axes of symmetry. ( )
(2) The longest line segment in a circle is the diameter. ( )
(3) For every 2 cm increase in the radius of a circle, the diameter increases by 4 cm. ( )
(4) The circumference is η times the diameter. ( )
(5) The perimeters of two circles are equal, and the areas of these two circles must be equal. ( )
3. Choose the serial number of the correct answer and fill in the brackets.
(1) The radius of the circle increased from 6 cm to 9 cm, and the area of the circle increased by () square cm.
A.9?b.45 c.45?
(2) Rectangles, squares and circles with equal perimeters, () has the largest area.
A. Square, circle and rectangle
(3) The diameter of a circle is 6 cm, which is exactly the side length of a square.
Compared with the areas of these two graphs, () is larger.
A. circle B. Square C.
(4) The diameter of the circular pool is 4m, the circumference around the pool is () and the area is ().
A.25.12m B.12.56m C.12.56m.
4. (1) A rectangular piece of paper, 27 cm long and 18 cm wide, put it.
Cut it into the biggest circle. How many square centimeters is the area of this circle?
(2) It is known that the circumference of a circle is equal to the circumference of a square, the side length of the square is 157 cm, and what is the radius of the circle?
(3) The circumference of a circular flower bed is 2826 meters, and the area is how many square meters?
(4) A children's bicycle with a front wheel diameter of 28 cm and a rear wheel diameter of 35 cm. 40 laps for the front wheel and how many laps for the rear wheel?
The hour hand of a clock is 5 cm long. How many square centimeters does an hour hand sweep day and night?
(6) There is a street flower bed with a diameter of 10 m in the square, and a stone fitness road with a width of 1 m is paved around the flower bed to find the area of the stone road.
(7) Take the largest triangle on the semicircular steel plate with a diameter of 4 decimeters. What is the area of this triangle?
(8) Find the area of the ring:
Circumference of outer circle: 50.24cm.
Diameter of inner ring: 4cm
Review at the end of the sixth grade of primary school-concept arrangement
Name: Achievements:
Fill in the blanks.
(1)4 m 15 is as long as () m's 45 m.
(2) When a() 1, 78×a 78.
When a() 1, 78×a =78.
(3) On a certain section, car A needs 10 minute and car B needs 12 minute ... The speed of car A is ()% of that of car B.
(4) The radius of the great circle is a, and the diameter of the small circle is a. The area of the small circle is ()% of the area of the great circle.
(5) A number 15 equals B number 16. The number b is 10 and the number a is ().
Choose the serial number of the correct answer to fill in the blanks.
(1) Draw the largest circle on a rectangular paper with a length of 6 decimeters and a width of 4 decimeters. The radius of the circle is ().
4 decimetres B.3 decimetres
C.2.5 decimeter D.2 decimeter
(2) The cost of plant expansion is 200,000 yuan, which is 65,438+00% less than the long-term plan. How much did the original plan cost? The correct formulation is ().
a . 20×( 1- 10%)b . 20×( 1+ 10%)
c . 20( 1- 10%)d . 20( 1+ 10%)
(3) A commodity is raised by 20% first and then lowered by 20%. The ratio of the current selling price to the far selling price ().
A.the price is very high now. B. High original price
C. The same price D. Can't say the size
Third, the judgment question
The calculation results of 3 34 and 3 34 are the same. ( )
25 1 kg is as heavy as 2 kg of 15. ( )
ba× dc= bdac (a≠0，b≠0).( )
If the number 34 of A is equal to the number 45 of B, then A is greater than B .. ()
The decimal unit of the reciprocal of 5 17 is 1 17. ( )
The actual output is 15 higher than the planned output, and the planned output is 1. ( )
Because 47× 74= 1, 74 is the reciprocal. ( )
The length of 1 12 at 7m is the same as that of 7 1 2 at1m. ( )
The reciprocal of the real score must be greater than 1. ( )
A wire is 2 meters long. Cut off 12, leaving 12 meters. ( )
56×( 25+ 23)= 56× 25+ 56× 23 。 ( )
4. Drawing comprehension
1. The grain output of Xinzhuang this year has increased by 15% compared with last year.
2. The number of boys in a primary school accounts for 46% of the whole school.
The output of textile mills this year is 22.5% higher than last year.
Now the cost of a product is lower than before 18%.
5. Arrange the following groups in descending order.
1.33.3%， 13，0.30 1。
2.2 19, 2 12% and 2. 1 1.
3.320 、 16 、 16%
4.2.66, 26.7 and 223
1. Calculate, simplify it if you can.
1.4 1 1 + 29 + 7 1 1 + 79
2.42×(56 - 27 )
3. 1 1 12 × 34 × 1 1 12 × 14
4. 10-7 13 - 6 13
5.(23 + 47 )×2 1
6.45 × 13 + 15 ÷3
7.25 × 15 × 16
8.59 × 13 × 57
9.23 ÷ 4 ÷ 16
10.78 × 14 × 7 10
12. 1835 ÷ 0.6 × 23
* 139× 137 138 + 137× 1 138
2. Find the ratio.
1.9. 1:355 =
2. 13.5:94 =
3. Solve the equation.
X - 18 X=98
82 1 X=4 15
1. The value of three shipments 1.52 million yuan. The weight ratio of the first, second and third batches of commodities is 2: 4: 3, and the unit price ratio of the three commodities is 6: 5: 2. How much is each of these three shipments?
An engineering team plans to complete an expressway within six months. In fact, only the whole railway 18 was built every month in the first three months, so the last three months were 4 kilometers more than the previous three months to just complete the task. How many kilometers is this highway?
The cost of a printer is 1200 yuan, which is 25% lower than the original cost. How much does it cost to make a printer?
A hoop with a diameter of 60 cm turned 90 times from the east end to the west end of the playground. The diameter of the other ring is 40 cm. How many turns did you make from the east end to the west end?
6. An engineering team plans to complete an expressway within six months. In fact, only the whole road 18 was built in the first three months, so it will take 4 kilometers more than planned to finish the task in the next three months. How many kilometers is this highway?
7. The ratio of length, width and height of a cuboid is 3: 2: 1. It is known that the sum of the sides of a cuboid is 144 cm. How many cubic centimeters is its volume?
8. Around a circular flower bed with a diameter of16m, there is a path with a width of 2m. What is the area of this path?
9. 1998 The total export volume of a city 102 billion yuan, an increase of 1997 yuan. What percentage of the total export volume of 1998 has increased compared with 1997?
10. For isosceles triangles, the ratio of the base angle to the top angle is 1: 4. What is the base angle of this triangle? What is the vertex angle?
1 1.( 1) Sugar beet is used to squeeze sugar in sugar factories, and 3,800 kilograms of sugar beet can squeeze 4 18 kilograms of sugar. Find the sugar yield of beet.
(2) The emergence of sugar beet