18.32-5.47-4.32 7.85+2.34-0.85+4.66

14.9-(5.2+4.9) 13.4-(3.4+5.2)

17.29-5.28-6.29 3.68+7.56-2.68

25 × 6.8 × 0.04 0.25 × 32 × 0. 125

12.8 × 1.25 × 12.5 23 × 0. 1 + 2.3 × 9.9

0.45 × 20 1 0.58 × 10. 1 50.2 × 99

4.7 × 9.9 3.6× 102 0.25× 16.2×4

3.28 × 5.7+6.72 × 5.7 0. 18+4.26-0. 18+4.26

2. 1 × 99 + 2. 1 1.7 × 9.9 + 0. 17 3.72 × 3.5 + 6.28 × 3.5

2 6.4 × 0.25 + 3.6 ÷ 4 3.75 × 0.5-2.75 ÷ 2 7.3 ÷4 + 2.7 × 0.25 5.26 × 0. 125 + 2.74 ÷ 8 6.78×3.6+3.22×3.6 12.5×0.57×0.8 、50×0. 1 3×0.2 2.33×0.5×0.4×5 9.78×99+9.78 1.6×7.5× 1.25 0.45×72+45×0. 18+4.5 37.58×97

8×7.2× 1.25 50.8× 10 1-50.8 8.42×9.6+0.4×842

48×0.25×0.2 3.6× 1.9+36×0.8 1

Second, the parting calculation (26)

3.09×3.9÷2.6 3.072÷6.4+49.7 69.6÷3.2÷2.5

60.8-36÷7.5 29×0.72÷0. 18 2. 16÷0.45÷0. 16

2.05÷0.82+33.6 13.9-22.78÷6.8

75÷〔 138÷( 100-54)〕 85×(95- 1440÷24)

178- 145÷5×6+42 8 12-700÷(9+3 1× 1 1)

85+ 14×( 14+208÷26) (58+37)÷(64-9×5)

Three. Equation calculation (37 questions)

9x-3x=6 6x-8=4 5x+x=9

x-8=6x 4÷5x=20 2x-6= 12

x-5÷6 = 7 1÷2x-8 = 4 7x+7 = 14

6x-6 = 0 5x+6 = 1 1 2x-8 = 10

3x+7=28 3x-7=26 9x-x= 16

24x+x=50 7÷X=0.2 9.5X-7X=9

2X- 10 = 43 29+ 12X = 32 2X-0.24 = 2.28

6X+6=306 9X-5X=0.64 X÷9.5=3.2

x-6.8 = 12.7 2.5X = 100 75X-68X = 47.6

1 1(X+7)= 12 1 40. 1X-9.6X = 6. 1 2X+4X = 72

3X = X+ 100 8(X-3.5)= 44(X+9.2)÷5 = 5. 1

(X-9.6)÷4=7.5 9.7X-X=26. 1

9(X+3.4)= 75.6 4.2X+ 17 = 27.5