920- 1680÷40÷7

690+47×52-398

148+3328÷64-75

360×24÷32+730

2 100-94+48×54

5 1+(2304-2042)×23

42 15+(436 1-7 16)÷8 1

(247+ 18)×27÷25

36-720÷(360÷ 18)

1080÷(63-54)×80

(528+9 12)×5-6 178

8528÷4 1×38-904

264+3 18-8280÷69

( 174+209)×26- 9000

8 14-(278+322)÷ 15

1406+735×9÷45

3 168-7828÷38+504

796-5040÷(630÷7)

285+(3000-372)÷36

1+5/6- 19/ 12

3x(-9)+7x(-9

(-54)x 1/6x(- 1/3)

1. 18. 1+(3-0.299÷0.23)× 1

2.(6.8-6.8×0.55)÷8.5

3.0. 12× 4.8÷0. 12×4.8

4.(3.2× 1.5+2.5)÷ 1.6 (2)3.2×( 1.5+2.5)÷ 1.6

5.6- 1.6÷4= 5.38+7.85-5.37=

6.7.2÷0.8- 1.2×5= 6- 1. 19×3-0.43=

7.6.5×(4.8- 1.2×4)= 0.68× 1.9+0.32× 1.9

8. 10. 15- 10.75×0.4-5.7

9.5.8×(3.87-0. 13)+4.2×3.74

10.32.52-(6+9.728÷3.2)×2.5

1 1.[(7. 1-5.6)×0.9- 1. 15] ÷2.5

12.5.4÷[2.6×(3.7-2.9)+0.62]

13. 12×6÷( 12-7.2)-6

14. 12×6÷7.2-6

15.33.02-( 148.4-90.85)÷2.5

7×(5/2 1+9/7 14)

50.32.52-(6+9.728÷3.2)×2.5 0.45×2.5= 0.8× 1.25= 0.3×3.6= 0.3×0.3= 10×0.07= 0.3× 1.4= 0.05×7= 0.9 2×0.4= 0.2×0.26= 0. 1 4×4= 0.02×0. 1= 1.2×0.3=0.2×0.4= 8.2+ 1.8= 100-35.22= 2.3×4=

2.5×0.4= 2.4×5= 0.22×4= 3.25×0=

0.9-0.52= 3.99× 1= 0×3.52= 12.5×8=

8÷ 10 = 10- 1.8-7.2= 0.43+3.57= 2.5×4× 12=

0.9×0.8 = 7.5x-3x = a+3a+7a = = 1.05× 100 = 1÷0.5 = 0.96÷3 = 1.47÷0.7 = 5.4÷6 =

0. 16.5× 10= 0.56× 100= 3.78× 100= 4÷0.8 =

3.2 15× 100= 0.8× 10= 4.08× 100= 1. 1×0.2 =

0.6×0.8 = 3×0.9= 2.5×0.4= 3.6×0.4=

12.5×8= 50×0.04= 80×0.3 = 1. 1×9=

0. 16×5 = 1.78+2.2 = 9.6÷0.6 = 1.2×0.5-0.4 = 0.7÷0.0 1 = 2.5×0.4 = 12-3.9= 1.25×8÷ 1.25 = 6.6÷0.66 = 5.37×0+4.63 = 3.9+2.03= 4.2÷3.5=

1.6+2.4×0.3 = 2. 14-0.9= 27+456+73= 0.3×0.3=

7.2+2.8= 0.9÷0.0 1= 12÷0.3= 2.87÷0.7=

13÷4= 0.96÷0.3= 1.5×0.4= 7÷0.25= 2.5×0.7×0.8= 8-2.5= 16÷ 1.6= 5.6× 1.0 1= 8×(2.5+0.25)= 0.36+0.64= 64.32÷ 16= 4.2÷0. 1=

72.8÷0.8= 8.4÷4.2= 13.8+9.9= 2.4×2.5=

0.05×0.8= 2.56-0.37= 1.25×0.8×0.5= 12×2.5= 1.23×3= 3.2÷ 1.6= 3.5+3.5×3= 19.6÷2= 8.8÷2.2= 0.75×4= ( 1.5+0.25)×4= 0.5×0.8=

8.4×0.2= 1.6×0.2= 7.2×0.3= 2.8×0.3= 0.9÷0. 15= 1.8×0.4= 5.5÷0.55= 0.08× 100=

2.2÷0. 1 1= 5.46+4.54= 12.5×0.8= 0.35×0.3=

1.4×5= 2.8×4= 19.6÷4= 22.5×4=

2, with vertical calculation

0.396÷ 1.2= 0.756÷0.36= 15.6× 13=

0. 18× 15= 0.025× 14= 3.06×36=

0.04×0. 12= 3.84×2.6≈ 5.76×3=

(Keep one decimal place)

7. 15×22 90.75÷3.3 3.68×0.25

16.9÷0. 13 1.55÷3.9 3.7×0.0 16

13.76×0.8= 5.2×0.6 8.4× 1.3

6.4×0.5 4.48×0.4 5.25×5

35.4×4.2 0.042×0.54 0.76×0.32

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 1.( 136+64)×(65-345÷23)

52.420+580-64×2 1÷28

53.(58+370)÷(64-45)

6.9+4.8+3. 1 0.456+6.22+3.78 15.89+(6.75-5.8)*6

4.02+5.4+0.98 5. 17- 1.8-3.2 13.75-(3.75+6.48)*6

3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6- 1.8- 15.6-7.2

3.82+2.9+0. 18+9. 1 9.6+4.8-3.6 7. 14-0.53-2.47

5.27+2.86-0.66+ 1.63 13.35-4.68+2.65 73.8- 1.64- 13.8-5.36

47.8-7.45+8.8 0.398+0.36+3.64 15.75+3.59-0.59+ 14.25

66.86-8.66- 1.34 0.25× 16.2×4 ( 1.25-0. 125)×8

3.6× 102 3.72×3.5+6.28×3.5 36.8-3.9-6. 1

15.6× 13. 1- 15.6- 15.6×2. 1 4.8×7.8+78×0.52 32+4.9-0.9

4.8× 100. 1 56.5×9.9+56.5 7.09× 10.8-0.8×7

25.48-(9.4-0.52) 4.2÷3.5 320÷ 1.25÷8

18.76×9.9+ 18.76 3.52÷2.5÷0.4 3.9-4. 1+6. 1-5.9

5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2

17.8÷( 1.78×4) 0.49÷ 1.4 1.25×2.5×32 3.65× 10. 1

15.2÷0.25÷4 0.89× 100. 1 146.5-(23+46.5)

3.83×4.56+3.83×5.44 4.36× 12.5×8 9.7×99+9.7

27.5×3.7-7.5×3.7 8.54÷2.5÷0.4 0.65× 10 1 3.2×0.25× 12.5

(45.9-32.7)÷8÷0. 125 3. 14×0.68+3 1.4×0.032 5.6÷ 1.25÷0.8÷2.5÷0.4

7.2×0.2+2.4× 1.4 8.9× 1.0 1 7.74×(2.8- 1.3)+ 1.5×2.2

3.9×2.7+3.9×7.3 18- 1.8÷0. 125÷0.8 12.7×9.9+ 1.27

2 1×(9.3-3.7)-5.6 15.02-6.8- 1.02 5.4× 1 1-5.4

2.3× 16+2.3×23+2.3 9.43-(6.28- 1.57) 3.65×4.7-36.5×0.37

46×57+23×86 13.7×0.25-3.7÷4 2.22×9.9+6.66×6.7

10 1×0.87-0.9 1×87 10.7× 16. 1- 15. 1× 10.7 0.79× 199

4.8+8.63+5.2+0.37 5.93+0. 19+2.8 1 1.76+0. 195+3.24

2.35+ 1.7 13+0.287+7.65 1.57+0.245+7.43 6.02+3.6+ 1.98

0. 134+2.66+0.866 1.27+3.9+0.73+ 16. 1 7.5+4.9-6.5

3.07-0.38- 1.62 1.29+3.7+2.7 1+6.3 8-2.45- 1.5

3.25+ 1.79-0.59+ 1.75 23.4-0.8- 13.4-7.2 0.32×403

3.2+0.36+4.8+ 1.64 1.23+3.4-0.23+6.6 0.25×36

12.7-(3.7+0.84) 36.54- 1.76-4.54 0.25×0.73×5

7.6×0.8+0.2×7.6 0.85× 199 0.25×8.5×4

1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.5

0.8×(4.3× 1.25) 3. 12+3. 12×99 28.6× 10 1-28.3

0.86× 15.7-0.86× 14.7 2.4× 102 2.3 1× 1.2×0.5

14-7.32-2.68 2.64+8.67+7.36+ 1 1.33 70÷28

(2.5-0.25)×0.4 9. 16× 1.5-0.5×9. 16 3.6-3.6×0.5

63.4÷2.5÷0.4 4.9÷ 1.4 3.9÷( 1.3×5)

(7.7+ 1.54)÷0.7 2.5×2.4 2.7÷45 15÷(0. 15×0.4)

0.35× 1.25×2×0.8 32.4×0.9+0. 1×32.4 15÷0.25

0.25×0.046 2.52×3.4 1.08×25

0. 12×0.5×0. 16= 4.8×0.25= 0. 125× 1.4≈

(Keep two decimal places)

2.5÷0.7= (keep three decimal places) 10. 1÷3.3= (business cycle decimal)

10.75÷ 12.5= (check by multiplication) 3.25×9.04= (check by division)

3. Off-die calculation (can be simplified as simplified)

2.5×7. 1×4 16. 12×99+ 16. 12 5.2×0.9+0.9

7.28×99+7.28 4.3×50×0.2 64-2.64×0.5

26× 15.7+ 15.7×24 (2.275 +0.625)×0.28

3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8

8.9× 1. 1×4.7 2.7×5.4×3.9 3.6×9.85-5.46

8.05×3.4+7.6 6.58×4.5×0.9 2.8×0.5+ 1.58

32+4.9-0.9 4.8-4.8×0.5 ( 1.25-0. 125)×8

4.8× 100. 1 56.5×99+56.5 7.09× 10.8-0.8×7.09

4.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.4

12.5×0.4×2.5×8 0.87×3. 16+4.64 9.5× 10 1

0.68 ÷(5.2 -3.5)× 1.25

40.5 ÷ 0.8 1 × 0. 18 4.8 ×( 15 ÷ 2.4) 2. 13.×0.×8257

6.8 1+6.8 1×99 0.25× 185×40 4.4×0.8-3.4×0.8

(9.37+9.37+9.37+9.37)× 2.5 4.2.× 1.+ 1.× 1.75

2.37×6.3+2.37×3.7 2.5× 1.25×0.32 3.8× 10. 1

2.5×(3.8×0.04) 7.69× 10 1 3.8× 10. 1

0.25×39+0.25 0. 125×72 46×0.33+54×0.33

(8×5.27) × 1.25 6.8 1+6.8 1×99 0.25× 185×40

6.8×0.75÷0.5 3.75÷0. 125–2.75 1.53+23.4÷7.2

9.5×99 13.5×0.98 12.5×8.8

Second, solve the equation:

54-X=24 7X=49 126÷X=42

13+A = 28.5 2.4X = 26.4 7.5x-3x = 18

5× 1.3-2x = 5.5 24x+6x = 63.6 5.6x+4.4x = 5.2

Third, the column calculation

What is the quotient of the difference between 1 and 20 minus 0.8 divided by the sum of four 0.3?

2.6 times 9 of a number, the total is 35. Find this number. (Equation solving)

3. The product of1.2 and 4, minus the quotient of 6 divided by 5, what is the difference?

4.2. What is the sum of the quotient of1divided by the product of 35 and 4? And 0.45?

Multiply a number by 3 times the product of 6 and 8, and the total is 84. Find this number.

What is the product of 6.4.08 divided by the quotient of 0.6 and multiplied by 5?

7. The product of numbers A and B is 25.2, and the number A is 56. What is the number b?

8. Divide 0.47 into 7 parts. How much is each part?

9, 1.25 times 4.2 minus 5, what's the difference?

What is 10, which is 3.05 times more than 4.7?

0.43×0.28= 6.45×0.73= 4.6×0.6=

8.9×0.05= 3.08×0.43= 1.5×26.7=

5.22÷29= 18.72÷3.6= 13.95÷3. 1=