First, fill in the blanks carefully. (24 points, 2 points for each small question)
1, 770,700,700 is written as (), and the mantissa after omitting 100 million is about () billion.
In 2400.04, the 4 on the right is in the position of (), which means () ().
3,6 ÷ 20 = () ÷10 = ()% = () Fill in the decimal.
4. The multiplication and distribution law expressed by letters is.
5, right angle = right angle = fillet.
6,3: 20 = () 2 tons = () kg
7,: After simplifying the ratio, the ratio is.
8. One ton of cement was used in the construction site, 3 tons less than the rest. The formula with letters indicates that the tonnage of raw cement on the site is tons.
9. A watch factory originally planned to produce 65,438+0,000 watches in 25 days, but actually produced 50 watches every day, and actually completed the task on the same day.
10, the average score of Chinese, mathematics and science in Su Li last semester was 92, and English should be 94.
1 1, naughty reading, reading the whole book on the first day, reading 25% of the whole book the next day, leaving 25 pages unfinished. This story book has 50 pages.
12, a cylindrical steel bar, 2 meters long, was cut into two sections, and the surface area was increased by 6 square decimeters. The volume of this steel bar is cubic meters.
Second, choose the best among the best and choose carefully. (5 points)
1, a commodity is sold at a 60% discount, indicating ().
(1) The original price is 60% of the current price; ② The current price is 60% of the original price; (3) The current price is 40% of the original price]
2. The number of female students in Class Two in six years accounts for the whole class, and the ratio of female students to male students is ().
〔①2:3; ②3:2; ③5:2〕
3. Cut a cube with a side length of one meter into two cuboids at will, and the surface area of these two cuboids is () square meters. 【①6a 2； ②8 a2； ③ 12a2】
4. Fold a piece of paper with a thickness of 0. 1 mm in half, and then fold it in half. After folding it four times, the paper will be () mm thick.
〔①0.4; ②0.8; ③ 1.6; ④0.32〕
5. The length of batten A is 9 cm, and the length of batten B is batten A. These two kinds of three battens form isosceles trisection, and the circumference of isosceles triangle is () cm.
〔① 12.6; ② 17.4; ③22.2; ④27〕
Third, the wonderful hand rejuvenates. (5 points)
In math class, Mr. Wang asks students to describe things in life in mathematical language. Please analyze it mathematically and draw a horizontal line in the wrong place.
Zhang Hong said: Unfortunately, I was born on1February 29, 992 14. Usually I only have my birthday once every four years. Su Wei said: I often see the score of 3:0 in the competition, so the last item of comparison can be 0. Qiao Lin said: The day before yesterday, four classmates and I took turns to go to a hospital 200 meters away. The average distance each person carries is 40 meters. Xiao Yu said: The winning rate of a lottery ticket is 10%. Every time you buy 100 lottery tickets, you will definitely win 10. Xiaohua said: Last time my father wanted to make a cylindrical ventilation pipe, with a diameter of 0.3 meters and a length of 3 meters. I suggest buying at least one piece with an area of 2.8, not counting joint consumables.
Fourth, be original, come on, right. (37 points)
1, fill in the number directly. (10)
2.4÷80=0.25×8=30÷30%=0.3×0.3=7÷ 1.4=
×= 12÷=×56=-=+=
2. Calculation of parting. (Friendly reminder: some can be simplified) (18 points)
4000-3456÷32×53.68-3.6×0.2+0. 1848×9.9+48×0. 1
( 1-)÷0.25×4(6-6×)÷ 122÷[+(-)]
3. Solve the equation. (Warm reminder: Pay attention to the writing format! ) (6 points)
=X:2=0.25:X+3X=2.4
4. Text questions. (3 points)
(1) Three times a number is 0. 1 less than 16. What is this number (equation solving)?
Fifth, hands-on practice is really interesting. (3 points)
First draw the height at the bottom of the picture below, and then measure the required data (take the whole centimeter) to find its area.
bottom
Sixth, careful observation is very practical. (3 points)
Here is a small ......
20 1 1-7-20 recommended
Book 6: Mathematics Book 6: Simulation Test Paper Book 6: Answers Book 6: Graduation Book 6: Composition Book 6
Other answers
Mathematics examination paper for primary school graduating class
Achievement _ _ _ _ _ _ _ _
Students: Every math exam is an interesting math trip, and today is no exception. As long as you carefully examine the questions, think hard and write neatly, I believe you will get excellent results. I wish you success, ok! )
First, fill in the blanks carefully. (24 points, 2 points for each small question)
1, 770,700,700 is written as (), and the mantissa after omitting 100 million is about () billion.
In 2400.04, the 4 on the right is in the position of (), which means () ().
3,6 ÷ 20 = () ÷10 = ()% = () Fill in the decimal.
4. The multiplication and distribution law expressed by letters is.
5, right angle = right angle = fillet.
6,3: 20 = () 2 tons = () kg
7,: After simplifying the ratio, the ratio is.
8. One ton of cement was used in the construction site, 3 tons less than the rest. The formula with letters indicates that the tonnage of raw cement on the site is tons.
9. A watch factory originally planned to produce 65,438+0,000 watches in 25 days, but actually produced 50 watches every day, and actually completed the task on the same day.
10, the average score of Chinese, mathematics and science in Su Li last semester was 92, and English should be 94.
1 1, naughty reading, reading the whole book on the first day, reading 25% of the whole book the next day, leaving 25 pages unfinished. This story book has 50 pages.
12, a cylindrical steel bar, 2 meters long, was cut into two sections, and the surface area was increased by 6 square decimeters. The volume of this steel bar is cubic meters.
Second, choose the best among the best and choose carefully. (5 points)
1, a commodity is sold at a 60% discount, indicating ().
(1) The original price is 60% of the current price; ② The current price is 60% of the original price; (3) The current price is 40% of the original price]
2. The number of female students in Class Two in six years accounts for the whole class, and the ratio of female students to male students is ().
〔①2:3; ②3:2; ③5:2〕
3. Cut a cube with a side length of one meter into two cuboids at will, and the surface area of these two cuboids is () square meters. 【①6a 2； ②8 a2； ③ 12a2】
4. Fold a piece of paper with a thickness of 0. 1 mm in half, and then fold it in half. After folding it four times, the paper will be () mm thick.
〔①0.4; ②0.8; ③ 1.6; ④0.32〕
5. The length of batten A is 9 cm, and the length of batten B is batten A. These two kinds of three battens form isosceles trisection, and the circumference of isosceles triangle is () cm.
〔① 12.6; ② 17.4; ③22.2; ④27〕
Third, the wonderful hand rejuvenates. (5 points)
In math class, Mr. Wang asks students to describe things in life in mathematical language. Please analyze it mathematically and draw a horizontal line in the wrong place.
Zhang Hong said: Unfortunately, I was born on1February 29, 992 14. Usually I only have my birthday once every four years. Su Wei said: I often see the score of 3:0 in the competition, so the last item of comparison can be 0. Qiao Lin said: The day before yesterday, four classmates and I took turns to go to a hospital 200 meters away. The average distance each person carries is 40 meters. Xiao Yu said: The winning rate of a lottery ticket is 10%. Every time you buy 100 lottery tickets, you will definitely win 10. Xiaohua said: Last time my father wanted to make a cylindrical ventilation pipe, with a diameter of 0.3 meters and a length of 3 meters. I suggest buying at least one piece with an area of 2.8, not counting joint consumables.
Fourth, be original, come on, right. (37 points)
1, fill in the number directly. (10)
2.4÷80=0.25×8=30÷30%=0.3×0.3=7÷ 1.4=
×= 12÷=×56=-=+=
2. Calculation of parting. (Friendly reminder: some can be simplified) (18 points)
4000-3456÷32×53.68-3.6×0.2+0. 1848×9.9+48×0. 1
( 1-)÷0.25×4(6-6×)÷ 122÷[+(-)]
3. Solve the equation. (Warm reminder: Pay attention to the writing format! ) (6 points)
=X:2=0.25:X+3X=2.4
4. Text questions. (3 points)
(1) Three times a number is 0. 1 less than 16. What is this number (equation solving)?
Fifth, hands-on practice is really interesting. (3 points)
First draw the height at the bottom of the picture below, and then measure the required data (take the whole centimeter) to find its area.
bottom