问题 填空题
口算下面各题.
2.3×0.3=
0.42×0.2=1.4×O.7=
0.16×0.6=1.2×0.5=2×0.45=
答案

2.3×0.3=0.69,0.42×0.2=0.084,1.4×O.7=0.98,
0.16×0.6=0.096,1.2×0.5=0.6,2×0.45=0.9.

填空题
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