题目内容
【题目】根据44×21=924,直接写出下面几个算式的积.
4.4×2.1=
0.44×0.21=
0.924= ×
92.4= × .
【答案】9.24,0.0924,0.44,2.1,4.4,21.
【解析】
试题分析:在乘法算式中积的小数位数是因数中小数位数的和,据此解答.
解:4.4×2.1=9.24,
0.44×0.21=0.0924,
0.924=0.44×2.1,
92.4=4.4×21,
故答案为:9.24,0.0924,0.44,2.1,4.4,21.
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