5 1÷ 13

+54

× 13 1

43

×52

÷43

×5 2 6-

292+

19 7 2.5×32× 12.5 4. Find the area of the shaded part (unit: cm) 5. Comprehensive application. 1.A and B two shopping malls sell washing machines. 1 month, Mall A sold 980 sets.

It sold 6 1 more than mall B. How many units did mall A sell more than mall B? 2. The machinery factory plans to produce 800 sets, with an average of 44 sets per day, which takes 10 days. The remaining tasks will take 8 days to complete. How many sets will be produced on average every day?

The classroom should be paved with square bricks. It costs 960 yuan to use a square brick with a side length of 3 minutes. If you use a square brick with a side length of 2 decimeters, how many pieces do you need? The area of a rectangle with a length of12cm is 36cm2 smaller than that of a square with a side length of12cm. How many centimeters is the width of this rectangle? 5. Planting trees in three classes in grade six. The task allocation is: Class A should plant 40% of the total number of three kinds of plants, and the ratio of the number of plants in Class B and Class C is 4: 3. Class A plants 200 trees, and the total number of trees planted in three classes is completed.

7 2 trees. How many trees are planted in Class C? 6. Please answer the following questions according to the chart below. (1) () The difference between monthly income and expenditure is the smallest. (2) The balance of payments in September was () ten thousand yuan. (3) The actual annual income is () ten thousand yuan. (4) The average monthly expenditure is () ten thousand yuan. 5] What else did you get?

5 answer 1. Fill in the blanks (65438+ 0 points for each blank, ***20 points). 1，5037000，730 2， 1.25，50500 3， 1.6， 1.7% 4， 1050 km 5， 16，4 6，0.48 7。

、32 ,

1211136 cm12

5 24 13, 6: 5, 6: 5, 5: 6 2. Judgment (65438+ 0 for each small question, ***5 points). 1, × 2, × 3, √ 4, × 5, × 3. Multiple choice questions (2 points for each small question, *** 12 points). 1，C 2，C 3，A 4，A 5，A 6，C 4。 Calculate (9+8+ 12+3+2) 1. Write the numbers directly (each question 1, * * 9).

4 2 20 1724

30 1 9.4 25 0 2, find the value of x (4 points for each small question, 1 point for each step, ***8 points).

3 1:X

=65 :0.75 6X-0.5×5=9.5

Solution: 65

X=3 1 ×0.75 solution: 6x-2.5 =

9.5 6 5 X=0.25 6X=9.5+2.5

X=4 1

×65 X= 12÷6

X = 103x = 23。 Simplify what can be simplified (3 points for each small question, *** 12 points).

5 1÷ 13

+54

× 13 1

43

×52

÷43

×52

=5 1

× 13 1

+54

× 13 1

=43

×52

×34

×52

=(5 1

+54)

× 13 1

=43

×34

×52

×52 = 1

× 13 1 = 1

×52

×52

= 13 1

=254

6 6-

2 92+

197 2.5×32× 12.5

=397+

197 =(2.5×4)×(8× 12.5)

= 59 5 = 1 0×100 =1000 4. Find the shadow area (3 points) 6×6÷2 =36÷2 = 18 (square centimeter) V. Comprehensive application (3 points)

6 )X=980 X=840 980-840= 140 (Taiwan Province) A: omitted. 2.(800-44× 10)÷8 =45 (Taiwan Province) A: omitted. 3. Solution: Let X block be 3× 3 = 9 (square decimeter) 2×2=4 (square decimeter) 4X=9×960 X=2 160 4. Solution: Let x cm be 12x+36 = 12× 65438+.

7 =700 (tree) 700×40%=280 (tree)

7 700-280=420 (tree) 420×3

7 = 180 (tree) 6, (1) (4) (2) (30) (3) (740) (4) (30) (5) can be answered in many ways.