道脱式计算

50道脱式计算

30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18

2.881÷0.43-0.24×3.5

28-(3.4+1.25×2.4)

777×9+1111×3

(31.8+3.2×4) ÷ 5

0.64×25×7.8+2.2

20×[(2.44-1.8)÷0.4+0.15]2.55×7.1+2.45×7.1 0.8×[15.5-(3.21+5.79)] 31.5×4÷(6+3) 2÷2.5+2.5÷2

36.25÷4.25×9.9 5180－705×6

24÷2.4－2.5×0.8 (4121+2389)÷7

671×15-974

19.4×6.1×2.3

18.1×0.92+3.93

0.78+5.436+1

469×12+1492 5.67×0.2-0.62 0.4×0.7×0.25 4. 8× 5÷4÷4

9. 9x5÷6+90÷18 10. 3 x 4x8÷4

14. 31x5÷6 x 5 x 6 16. 5 x 9x18-14x2÷7

20. 3x2 x 9÷3

36. 178-145÷5+42

6.5×（4.8-1.2×4）

2.55×11+2.45×10

228÷（64-45） 7.2÷0.8-1.2×5 28-(3.4+1.25×2.4) 555×9+1111×6

（31.8+3.2×4）÷5 31.5×4÷(6+3)

0.64×25×7.8+2.2 2÷0.8+2.5÷2

194－64.8÷1.8×0.9

5180－705×6

(4121+2389)÷7

469×12+1492

19.4×6.1×2.3

36.72÷4.25×9.9 24÷2.4－2.5×0.8 671×15-974 405×(3213-3189) 5.67×0.2-0.62