3.55×9.9+0.355能简算吗?
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可以的呀:
3.55×9.9+0.355
=3.55×9.9+3.55×0.1
=3.55×(9.9+0.1)
=3.55×10
=35.5
咨询记录 · 回答于2021-05-21
3.55×9.9+0.355能简算吗?
可以的呀:3.55×9.9+0.355=3.55×9.9+3.55×0.1=3.55×(9.9+0.1)=3.55×10=35.5
为什么解的题里没有0.355
有啊
:3.56×9.9+0.356 或 3.56×9.9+0.356=0.356×10×9.9+0.356 =3.56×9.9+3.56×0.1=0.356×(10×9.9+1) =3.56×(9.9+0.1)=0.356×(99+1) =3.56×10=0.356×100 =35.6=35.6