题干

心算.

0.8×0.7=____

0.9×0.05=____

0.3×0.4=____

1.2×0.3=____

0.04×0.6=____

0.16×0.5=____

0.6×0.9=____

2.4×0.5=____

0.015×0.4=____

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答案(点此获取答案解析)

0.56,0.045,0.12,0.36,0.024,0.08,0.54,1.2,0.006