59.69×104简便方法?

日期:2022-04-06 23:50:24 人气:1

59.69×104简便方法?

答案:6207.76


解析:

59.69x104

=(60-0.31)x(100+4)

=60x100-0.31x100+60x4-0.31x4

=6000-31+240-1.24

=6209-1.24

=6207.76

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