3600除以45,怎么简便运算,

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3600除以45,怎么简便运算,
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3600除以45,怎么简便运算,
3600除以45,怎么简便运算,

3600除以45,怎么简便运算,
3600÷45
=3600÷9÷5
=400÷5
=80

3600和45同时可以约去一个9,就变成了400除以5,所以…你懂的

3600/45
=3600/(9*5)
=(3600/9)/5
=400/5
=80
谢谢

3600=40*45*2

3600/9再除以5

3600÷45
=3600÷9÷5
=400÷5
=80

3600/45
=3600/(9*5)
=400/5
=80