40.5÷0.8○40.5 8.24× 1○8.24 3.9÷0.99○3.9

10、0.25×9.7×4=9.7×( × )

II. Judgment (every 1 minute, ***6 points)

1. When calculating the approximate value of the quotient, to keep three decimal places, you have to divide it by the percentile of the quotient. ( )

2. When both sides of the equation are multiplied or divided by the same number (except 0), the equation still holds.

When we observe an object, the observed results are different because of the different observation positions. ()

4.2x+0.5x- 16 is the equation ().

5. The solution of the equation 1.6x-x = 3.6 is X=6 ().

6、9.7×40=97×4 ( )

The sum of 7, 7 and 6 times of X is 7+6x ().

8. Because 2+2=2×2 and 3+3=3×2 ()

Third, the choice (65438+ 0 points for each question, ***6 points)

1, the same formula as the result of 0.725× 1.5 is ().

a 725× 15 B 15×0.0725 C 72.5×0. 15D 725×0.0 15

2. The same formula as the result of 96.4÷0.32 is ().

a 9.64÷32 B 0.964÷0.032 C 964÷3.2D 964÷32

3. The quotient of 7. 1÷ 1 1 expressed by cyclic decimal is ().

A 0.645 B 0.645 C 0.645 D 0.6454545 ......

4. The first step to solve the equation 5x+5 = 1 1.5 is ().

a 5X+5-5 = 1 1.5 B 5X+5-5 = 1 1.5-5 C 5X+5 = 1 1.5-5D 5X = 1 1.5+5

5. The solution of equation X+5.6 = 1 1.2 is ().

a X = 2 B X = 10 C X = 5.6D X = 1

6. White balls are twice as few as black balls. The correct relationship of 4 is ()

A White Ball = Black Ball B Black Ball× 2 = White Ball C White Ball× 2 = Black Ball

D black ball ×2- white ball = 4

Fourth, the calculation question (1 question 6 points, the second question 10 points, mutual 12 points, * * * 40 points).

1, oral calculation

7. 1×8= 4.2÷0.7= 5.4-2.8=

0.25×4= 0. 14 ×0.3= 8.4÷0.4=

2, column vertical calculation

0.45×3.06 60.2 1÷ 18

Check calculation: Check calculation:

0.284×35= 1.783÷0.66=

(Keep two decimal places) (Keep two decimal places)

3. Simplify what can be simplified.

52-27.4- 12.6 3.25×0.45+6.75×0.45

5.64÷0. 125÷8 1.25×0.68×8

4. Solve the equation (choose a small topic to write the test process)

3X-0.5 = 5.8 4×6+4X = 84 12X-9X = 8.7

Six, solve the problem (4 points per question, ***20 points)

1. Mom needs to put 2.5 kilograms of sesame oil in the bottle, and each bottle can hold up to 0.4 kilograms. How many bottles should I prepare?

2. A conference room is 8 meters long and 6 meters wide, and the floor is paved with square floor tiles with a side length of 6 meters. How many such tiles does a * * * need to buy?

There are 425 apple trees planted in an orchard, which is more than twice the number of pear trees. How many pear trees are there in the orchard? (Equation solving)

The school bought 6 volleyballs and 6 basketballs. A * * 5 10 yuan, a volleyball 40 yuan and a basketball. how much is it?

Xiaoming's physical examination today is 1.52 meters, which is 8 centimeters higher than last year. What was the height of Xiaoming last year? (Equation solving)