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Decimal multiplication and division can calculate 20 questions per question, 40 simple questions and 20 equations.

Decimal multiplication and division problem 20 10-02-07 09:24 multiplication:

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

5.6 1×4.3

8.9×2.4

5.5×55

9.77×0.02

1.384×5. 1

8.78×83

2.6×6 1

0.059×0.2

4.268× 1.7

57×5.7

9.46×2.85

17.8×6.4

1.5×4.9

2.5×0.88

5.555×5.2

2.22×3.33

7.658×85

36.02×0.3

56.78×8

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

6.2 1÷0.03

2 10÷ 1.4

5 1.3÷0.27

9 1.2÷3.8

0.756÷0. 18

0.66÷0.3

1 1.97÷ 1.5

69.6÷2.9

38.4÷0.8

15÷0.06

(Circulate decimals in a simple way, except for 2 decimal places):

8.2÷0. 12

0.8÷0.9

76.4÷5.4

4.7÷3

1.25÷ 1.2

32÷42

14.36÷2.7

8.33÷6.2

1.7÷0.03

2.4 1÷0.7

Use 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 = (one decimal place is reserved).

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

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)

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

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

x+3.86=5.46

17.89-x= 12.89

40.8+x=57.3

x-3.25= 16

2x+0.82=8.2

3+0.5x=7

7.8÷x=2.6

80x÷4= 12

5-0.9x=2.75

2x+0.4x=48

6-2x+6x= 18

35x+ 13x=9.6

0.52×5-4x=0.6

0.7(x+0.9)=42

1.3x+2.4×3= 12.4

3.5x = 140

2x +5 = 40

15x+6x = 168

5x+ 1.5 = 4.5

13.7—x = 5.29

4.2 × 3—3x = 5. 1 (write out the inspection process)

20.5-4x=8. 1

3.6x÷ 1.2=9.75

18× 1.5- 1.7x = 13.4

18.5 x-9.9 x = 1.72 1

9.2x+ 1.5x=32. 1

7.2×5-8x= 1 1.2

4x+3×0.7=6.5

(oral calculation)

0.6× 1.2= 0.84÷0.6= 4.5×0. 1=

15×0.4= 0. 1×0.5= 2.8÷7=

100÷0.0 1= 1.4×3= 0.72÷8=

6÷0.03= 0.5×0.6= 40×0.9=

4÷0.5= 7×2. 1= 8.89+0. 1=

24×0.25= 0. 1÷0.0 1= 2.4×0.8=

9×0.4= 10×0.0 1= 30.2-3.02=

4.3-0.25= 1-0.82= 9.6÷0.3=

2.6×0.0 1= 0×25.4= 4.8×0.4=

7.2+2.8=

12×2.5=

2.63+0.37=

0.7× 16- 16×0.2=

0.96÷0.3=

1.5-4.5=

2.5×0.4

1.4×2.5×4=

8-2.5=

6÷ 1.2=

9.2÷2.3=

24÷4+56÷4=

0.36+0.64=

4÷0.25=

1.8×5=

30×(200+3)=

8.4÷4.2=

8× 1.5=

4.8÷0.3=

2.73+ 1.5×4=

Calculate the following problems (simplify them if you can)

7.05×23.7+7.05×76.3

0. 125×3.2×2.5

12.8 1-( 1.5+7.8 1)

8.7×2.6+6.4×8.7+8.7

1025- 1 125÷4.5×3.6

12.25-3. 1+0.85-6. 17

( 1.9- 1.9×0.9)÷(3.8-2.8)

2.65× 1.7+ 1.35× 1.7

Calculate the column vertically, and keep one decimal place for the number.

1.2× 1.4= 0.37×8.4= 3. 14×2.8=

0.85× 1. 12= 0.86×5.4= 0. 15×2.34=

40÷ 14= 26.37÷3 1= 45.5÷38=

1560÷35= 4.8÷2.3= 1.55÷3.9=

7.2÷2. 1= 3.87÷7= 146.4÷ 13=

5.63÷6. 1= 2.84×0.03= 0.38×0. 13=

26.37÷3 1= 32÷42= 2.84×0.03=

4.8÷23= 0.382×0. 13= 4.2÷4.5=

Column vertical calculation

1.64+2.35 = 8.65-6.3 1 = 28.448÷ 14 = 0.58×250 = 12.5+3.6 = 10.88÷34 = 10-7.64 = 1.86×7 = 13.88

Third, calculation (simple calculation can be done in a simple way)

8×25× 1.25× 16

4.04×250

45.55-(6.82+ 15.55)

3.2×99+3.2 4.8×39+6 1×4.8 34.52- 17.87- 12.23

2.5×56+4.5×65 489× 10 1-489 4.57+3. 17+3.43+5.83

4.6×56+48×4.6-4.6×4

Vertical calculation:

18÷24= 43.68÷26= 25.3÷0.88=

0. 1575÷3. 15= 0.6 12÷ 1.8= 16.787÷0.28

(Keep one decimal place)

1, calculate the following problem

2.36×0.22 2.8×4.58 3.57÷4.2 82.8÷36

45×2.46 3.6÷0.24 382.5÷45 6.4×5.48

2. Simple calculation

3.6×2.5+7.5×3.6 2.5× 1.2 0. 125×32 4.3×0.9 6.5× 102 3.25×99+3.25

18÷24= 43.68÷26= 25.3÷0.88=

0. 1575÷3. 15= 0.6 12÷ 1.8= 16.787÷0.28