简便计算98乘64
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简便计算98乘64简便计算98乘64简便计算98乘6498×64=(100-2)×64=100×64-2×64=6400-128=627298x64=(100-2)x64=100x64-2x64=64
简便计算98乘64
简便计算98乘64
简便计算98乘64
98×64
=(100-2)×64
=100×64-2×64
=6400-128
=6272
98x64=(100-2)x64=100x64-2x64=6400-128=6272