1.12×0.74;   1.07×2.3.
分析:運(yùn)用小數(shù)的乘法的計(jì)算法則進(jìn)行計(jì)算即可,注意積的小數(shù)部分的位數(shù).
解答:解:
1.12×0.74=0.8288
;

1.07×2.3=2.461
點(diǎn)評(píng):積的小數(shù)部分的位數(shù)是兩個(gè)乘數(shù)的小數(shù)部分位數(shù)的和.
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