计算下面各题．40× = × =10× =12× = × =36× =

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40× $\text{[math]}$ =	$\text{[math]}$ × $\text{[math]}$ =	10× $\text{[math]}$ =
12× $\text{[math]}$ =	$\text{[math]}$ × $\text{[math]}$ =	36× $\text{[math]}$ =

1. 计算下面各题．40× = × =10× =12× = × =36× =