10.7×16.1减15.1×10.7 2.33×0.5×0.6 13.8×0.45+138×0.055 下面能简算的简
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10.7×16.1减15.1×10.7 2.33×0.5×0.6 13.8×0.45+138×0.055 下面能简算的简算 答了给50分
![10.7×16.1减15.1×10.7 2.33×0.5×0.6 13.8×0.45+138×0.055 下面能简算的简](/uploads/image/z/5222852-44-2.jpg?t=10.7%C3%9716.1%E5%87%8F15.1%C3%9710.7+2.33%C3%970.5%C3%970.6+13.8%C3%970.45%EF%BC%8B138%C3%970.055+%E4%B8%8B%E9%9D%A2%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E7%AE%80)
10.7×16.1减15.1×10.7
=10.7×(16.1-15.1)
=10.7×1
=10.7
2.33×0.5×0.6
=233×(5×6)÷10000
=233×30÷10000
=6990÷10000
=0·699
13.8×0.45+138×0.055
=13.8×0.45+13·8×0·55
=13.8×(0.45+0·55)
=13.8×1
=13.8
再问: 2.33×0.5×0.6 怎么来的啊
再答: 2.33×0.5×0.6扩大10000倍 就可写成233×(5×6)(把小数都变为了整数),然后÷10000值不变,懂了吗?
=10.7×(16.1-15.1)
=10.7×1
=10.7
2.33×0.5×0.6
=233×(5×6)÷10000
=233×30÷10000
=6990÷10000
=0·699
13.8×0.45+138×0.055
=13.8×0.45+13·8×0·55
=13.8×(0.45+0·55)
=13.8×1
=13.8
再问: 2.33×0.5×0.6 怎么来的啊
再答: 2.33×0.5×0.6扩大10000倍 就可写成233×(5×6)(把小数都变为了整数),然后÷10000值不变,懂了吗?