五年级上册数学.小数简便运算综合练习
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简介
一、脱式计算 3.3×0.8−3.3×0.2 =3.3×(0.8−0.2) =3.3×0.6 =1.98 1.1×4.7−1.1×0.3 =1.1×(4.7−0.3) =1.1×4.4 =4.84 3.8×2.32-3.8×0.68 =3.8×(2.32−0.68) =3.8×1.64 =6.232 8×(0.625−0.2) =8×0.625−8×0.2 =5−1.6 =3.4 10÷0.4÷2.5 =10÷(0.4×2.5) =10÷1 =10 2.5×(12−1.5) =2.5×12−2.5×1.5 =30−3.75 =26.25 330÷2÷1.5 =330÷(2×1.5) =330÷3 =110 2×(0.5+1.4) =2×0.5+2×1.4 =1+2.8 =3.8 3.6×4.52-3.6×0.48 =3.6×(4.52−0.48) =3.6×4.04 =14.544
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