五上数学《小数乘法》计算每日一练
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简介
一、口算题(共20道) 0.2×3=0.6 1.2×2=2.4 0.3×0.2=0.06 0.4×0.3=0.12 0.5×6=3 3.1×2=6.2 1.1×0.3=0.33 2.2×0.2=0.44 0.4×5=2 0.8×3=2.4 0.5×0.5=0.25 0.2×0.6=0.12 0.7×4=2.8 0.6×5=3 0.8×0.4=0.32 0.9×0.5=0.45 2.1×3=6.3 1.5×4=6 0.7×0.1=0.07 1.3×0.2=0.26 三、简便计算题(共9道) 2.5×3.7×0.4 =2.5×0.4×3.7 =1×3.7 =3.7 1.25×5.6×0.8 =1.25×0.8×5.6 =1×5.6 =5.6 4.8×99+4.8 =4.8×(99+1) =4.8×100 =480 3.6×101 =3.6×(100+1) =3.6×100+3.6×1 =360+3.6 =363.6 0.25×44 =0.25×(40+4) =0.25×40+0.25×4 =10+1 =11 1.25×32×0.25 =1.25×8×4×0.25 =(1.25×8)×(4×0.25) =10×1 =10
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