资源描述
用简便方法计算
0.32×403 0.25×36 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 10.4-9.6×0.35 0.8×(4.3×1.25)
3.12+3.12×99 28.6×101-28.6 0.86×14.7-0.86×14.7
2.4×102 2.31×1.2×0.5 (2.5-0.25)×0.4
9.16×1.5-0.5×9.16 3.6-3.6×0.5 32.4×0.9+0.1×32.4
4.5÷1.8 4.2÷3.5
930÷0.6÷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 0.35×1.25×2×0.8
15÷0.25
70÷28 15÷(0.15×0.4)
4.25÷2.5×9.9+0.17
3
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