Fill in the blanks.
1.4: 32 = () (fill in score)
2. Divide the 3-meter-long line segment into 5 parts on average, and each part is expressed as () meters with a fraction and () meters with a decimal.
5. When the number A is divided by the number B, the quotient is exactly the reciprocal of the number B, and the number A is ().
The number of is ().
There are 52 students in Class 8.6 (1). Today, two of them are sick, and the attendance rate is ().
9. The distance between Party A and Party B is 1050km, and () cm should be drawn on the map with the scale of 1: 30000000.
10. A cylindrical wood, with a length of 1.5m, was sawed into two parts along the bottom diameter, and its surface area increased by 600 square centimeters. The volume of this kind of wood is () cubic centimeters.
Second, judge the following questions, correctly draw a "tick" in (), and wrongly draw an "X".
( )
2. Only two prime numbers are even numbers, and the rest are odd numbers. ( )
( )
4. Two adjacent natural numbers must be prime numbers. ( )
5. Put 10g salt into 10g water, and the weight of the salt accounts for 10% of the brine. ( )
6. The greater the counting unit of a number, the greater the number. ( )
Third, choose the serial number of the correct answer and fill in ().
1. 15.5% minus the percent sign, this number is ().
(1) magnified by 100 times.
(2) reduced by 100 times.
(3) magnified by 10 times
( )
3. The water consumption in September is 8% less than that in August, and the water consumption in September is that in August ().
( 1) 108%
(2)92%
(3)8%
( )
(2)8∶5
(3)5∶8
Seven, basic application problems.
1. Zhangzhuang Brick and Tile Factory planned to use 400 tons of coal in the first half of the year, but actually used 388 tons of coal, which percentage was saved?
0.25 tons of coal was saved than planned. How many days did this batch of coal actually burn? (Use proportional solution)
3. Neighborhood Committee A donated 240 cotton-padded clothes to the disaster area, 20% more than neighborhood Committee B. How much more cotton-padded clothes were donated than neighborhood Committee B?
Team a and team b jointly built a road. Team A completed 62% of the total length, 360 meters more than Team B. What is the total length of this road?
Final test b
Fill in the blanks.
1.2030kg = () tons = () tons () kilograms.
2.567000 If the number written in () is rewritten as "10,000", it means () 10,000.
4.3÷5( )= 15%=( )∶40
Yes ()
Project ().
7. The sum of the numbers A and B is 136. Moving the decimal point of the number A to the left is equal to B.
* 8. The ratio of the base to the height of an isosceles triangle is 8: 3. Cut along the height of the base to form a rectangle. The area of this rectangle is 192 square centimeters, and the circumference of the rectangle is () centimeters.
9. The two digits with the greatest common divisor of 9 and the smallest common multiple of 360 are () and () respectively.
10. A two-digit number divided by 7 has the same quotient and remainder. The minimum value of this two-digit number is (), and the maximum value is ().
Second, choose the correct answer and fill in ().
1.A number is 20% more than B number, and B number is less than A number ()
( 1)20%
(3)30%
2. The height of the right triangle is _ _ _ _ _ _ _ ()
( 1) 1
(2)2
(3)3
3. For a cylinder and a cone, the ratio of the perimeter of the bottom surface is 2: 3, and the ratio of their volumes is 5: 6. The simplest integer of the ratio of the height of the cone to the height of the cylinder is ().
( 1)8∶5
(2) 12∶5
(3)5∶ 12
(4)5∶8
Xiao Wang, Xiao Li and Xiao Zhang each made 120 identical machine parts at the same time. After Xiao Wang finished, Xiao Li earned 100 and Xiao Zhang earned 60. According to this calculation, when Xiao Li finishes, Xiao Zhang is short of _ _ _ _ _. ( )
( 1)48
(2)40
(3)20
Third, judge the following questions, correctly draw "√" in (), and wrongly draw "×".
1. The unit price is fixed, and the quantity is directly proportional to the total price. ( )
2. All integers have reciprocal. ( )
( )
( )
5. On the map with the scale of 1∶200000, the distance between A and B is measured to be b cm, and the actual distance between A and B is 2b km. ( )
The price of 6.25 yuan was reduced by 20% at first, then increased by 20%, and now the price is 96% of the original price. ( )
5. Calculate the following questions as simply as possible.
1.36.8-44.08÷5.8
Seven, answer the following basic application questions.
1. A washing and dyeing factory planned to use 400 tons of water in the first half of the year, but actually used 388 tons of water, which percentage was saved?
2. Master Liu produced a batch of parts and produced 128 parts in four days. At this rate, how many days will it take to produce 224 parts? (Answer in two ways)
3.62 classes are more than 6 1 class 12.5%, and 62 classes have 45 students. 6 1 How many students are there in Class 62?
4. It takes 65,438+00 days for Group A, Group B and Group C to complete a project together.
God, it's just finished. Group A and Group B have finished this project? How many projects has C completed?
Eight, comprehensive use of knowledge to solve the following practical problems.
1. As shown in the figure, the area of the parallelogram is 28 square meters. Find the area of the shadow.
2. Cut a rectangular cardboard with a length of 50 cm and a width of 40 cm into squares with a side length of 1 cm from four corners to make a carton. What is the volume of this carton? What is the surface area?
Three. 1.√ 2.× 3.× 4.√ 5.√ 6.√
Seven,
1.(400-388)÷400=0.03=3%
2. Answer in proportion. Solution: Suppose it takes X days.
Answer in a normalized way. 224÷( 128÷4)=7 (days)
3.45-45 ÷ (1+12.5%) = 5 (person)
Eight,
1.28÷ 7 = 4 3.14× 4÷ 4 =12.56 (square meter)
2. (50-2) × (40-2 )×1=1824 (cubic centimeter) = 1.824 liter.
50× 40-/kloc-0 /×/kloc-0 /× 4 =1996 (square centimeter)