口算下面各题．
0.7×0.9= 0.14×0.3= 3.2×0.3= 0.16×0.5=
7×0.08= 1.8×0.04= 60×0.5= 0.24×3=
7.7×0.03= 0.12×6= 2.1×4= 0.15×0.4=
口算下面各题．
0.7×0.9= 0.14×0.3= 3.2×0.3= 0.16×0.5=
7×0.08= 1.8×0.04= 60×0.5= 0.24×3=
7.7×0.03= 0.12×6= 2.1×4= 0.15×0.4=
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