五上小数乘除法简便运算综合练习卷
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简介
8×7.4×0.125 =8×0.125×7.4 =1×7.4 =7.4 0.25×(12+1.1) =0.25×12+0.25×1.1 =3+0.275 =3.275 1.7×2×0.5 =1.7×(2×0.5) =1.7×1 =1.7 2.8×1.61-2.8×0.39 =2.8×(1.61-0.39) =2.8×1.22 =3.416 2.9×3.7+2.9×0.3 =2.9×(3.7+0.3) =2.9×4 =11.6 0.5×(4+0.2) =0.5×4+0.5×0.2 =2+0.1 =2.1 0.125×(24+1.2) =0.125×24+0.125×1.2 =3+0.15 =3.15 2.9×3.1+2.9×0.9 =2.9×(3.1+0.9) =2.9×4 =11.6 4×(1.2-0.5) =4×1.2-4×0.5 =4.8-2 =2.8
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