5.6×2.9

3.77× 1.8

0.02×96

5.22×0.3

9.99×0.02

4.67×0.9

5×2.44

1.666×6. 1

9.432×0.002

5.6×6.5

4.88×2.9

Department:

85.44÷ 16

42.84÷7

10 1.7÷9

67.5÷ 15

230.4÷6

2 1.24÷36

0.736÷23

43.5÷ 12

35.2 1÷7

39.6÷24

Solve the equation:

( 1)2x+8= 16

(2)x/5= 10

(3)x+7x=8

9x-3x=6

(5)6x-8=4

(6)5x+x=9

(7)x-8=6x

(8)4/5x=20

(9)2x-6= 12

( 10)7x+7= 14

First, write directly.

16×5= 20×40= 150×6= 600÷2=

40÷4= 80÷3= 400×20= 0÷23=

1- = 15÷5= 390÷3= + =

100÷5= 1- = 1 1×80= 8×263×0=

Second, estimation and calculation.

90 1× 19 895÷9 79×2 1 2 13÷7

8 1×99 405÷8 19×42 273÷3

1.3/7 × 49/9 - 4/3

2.8/9 × 15/36 + 1/27

3. 12× 5/6 – 2/9 ×3

4.8× 5/4 + 1/4

5.6÷ 3/8 – 3/8 ÷6

6.4/7 × 5/9 + 3/7 × 5/9

7.5/2 -( 3/2 + 4/5 )

8.7/8 + ( 1/8 + 1/9 )

9.9 × 5/6 + 5/6

10.3/4 × 8/9 - 1/3

1 1.7 × 5/49 + 3/ 14

12.6 ×( 1/2 + 2/3 )

13.8 × 4/5 + 8 × 1 1/5

14.3 1 × 5/6 – 5/6

15.9/7 - ( 2/7 – 10/2 1 )

16.5/9 × 18 – 14 × 2/7

17.4/5 × 25/ 16 + 2/3 × 3/4

18. 14 × 8/7 – 5/6 × 12/ 15

19. 17/32 – 3/4 × 9/24

20.3 × 2/9 + 1/3

2 1.5/7 × 3/25 + 3/7

22.3/ 14 ×× 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24.9/22 + 1/ 1 1 ÷ 1/2

25.5/3 × 1 1/5 + 4/3

26.45 × 2/3 + 1/3 × 15

27.7/ 19 + 12/ 19 × 5/6

28. 1/4 + 3/4 ÷ 2/3

29.8/7 × 2 1/ 16 + 1/2

30. 10 1 × 1/5 – 1/5 × 2 1

3 1.50+ 160÷40

32. 120- 144÷ 18+35

33.347+45×2-4 160÷52

34(58+37)÷(64-9×5)

35.95÷(64-45)

36. 178- 145÷5×6+42

37.8 12-700÷(9+3 1× 1 1)

38.85+ 14×( 14+208÷26)

39.(284+ 16)×(5 12-8208÷ 18)

40. 120-36×4÷ 18+35

4 1.(58+37)÷(64-9×5)

42.(6.8-6.8×0.55)÷8.5

43.0. 12× 4.8÷0. 12×4.8

44.(3.2× 1.5+2.5)÷ 1.6 (2)3.2×( 1.5+2.5)÷ 1.6

45.6- 1.6÷4= 5.38+7.85-5.37=

46.7.2÷0.8- 1.2×5= 6- 1. 19×3-0.43=

47.6.5×(4.8- 1.2×4)= 0.68× 1.9+0.32× 1.9

48. 10. 15- 10.75×0.4-5.7

49.5.8×(3.87-0. 13)+4.2×3.74

50.32.52-(6+9.728÷3.2)×2.5

5 1.( 136+64)×(65-345÷23)

52.420+580-64×2 1÷28

53.(58+370)÷(64-45)

Hehe, in fact, these are not what I thought. You can make do with it occasionally!