= = = == = = == =
×=×=×=×=×=×=×30= 28×=××=
下面各题写出必要的计算过程．×= 16×=×=×1100=
直接写出得数． 45×=×=+=××=×12=×=﹣= 0×+=
一个数（0除外）乘，这个数就缩小了10倍． ．
甲数是，乙数比甲数的倒数少，这两个数的积是多少？
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×
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×
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×30= 28×
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×1100=
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×12=
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，这个数就缩小了10倍． ．
，乙数比甲数的倒数少
，这两个数的积是多少？