脱式计算一般是用在四则运算上,五年级上册刚接触到小数,四则运算先做除出后后做加减,所以它的题为
2.5×4+50÷2-3.4
=10+50×2-3.4
=10+100-3.4
=110-3.4
=106.6
脱式计算一般是用在四则运算上,五年级上册刚接触到小数,四则运算先做除出后后做加减,所以它的题为
2.5×4+50÷2-3.4
=10+50×2-3.4
=10+100-3.4
=110-3.4
=106.6
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