列式计算我能行.①45个59
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列式计算我能行.
①45个
①45个
5 |
9 |
![列式计算我能行.①45个59](/uploads/image/z/6177756-12-6.jpg?t=%E5%88%97%E5%BC%8F%E8%AE%A1%E7%AE%97%E6%88%91%E8%83%BD%E8%A1%8C%EF%BC%8E%E2%91%A045%E4%B8%AA59)
①(
5
9×45-0.4)÷0.4
=(25-0.4)÷0.4,
=24.6÷0.4,
=61.5.
答:商是61.5.
②(28+32)÷
4
5.
=60÷
4
5,
=75.
答:这个数是75.
5
9×45-0.4)÷0.4
=(25-0.4)÷0.4,
=24.6÷0.4,
=61.5.
答:商是61.5.
②(28+32)÷
4
5.
=60÷
4
5,
=75.
答:这个数是75.