0.01加1.01乘99的简便算法是?
7个回答
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0.01+1.01×99
=0.01+(1+0.01)×99
=0.01+1×99+0.01×99
=0.01+99+0.99
=0.01+0.99+99
=1+99
=100
=0.01+(1+0.01)×99
=0.01+1×99+0.01×99
=0.01+99+0.99
=0.01+0.99+99
=1+99
=100
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展开全部
=(0.01+1.01)X99
=1.02✘(100-1)
=1.02✘100-1.02✘1
=102-1.02
=100.98
=1.02✘(100-1)
=1.02✘100-1.02✘1
=102-1.02
=100.98
追答
改:
0.01+1.01×99
=0.01+(1+0.01)×99
=0.01+0.01×99+99
=0.01×(1+99)+99
=1+99
=100
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