5.2*10.1怎么简算是什么

简便计算:5*(2/5+1)-10*(2/5-1/10+1/5)
小超制作205
用乘法对加法的分配律打开即可原式=5*(2/5+1)-10*(2/5-1/10+1/5)
=(5*2/5+5*1)-(10*2/5-10*1/10+10*1/5)
=2+5-(4-1+2)
请问你知道-105又5/9*(-3/5)怎么简算吗?
=105又5/9*(3/5)
=105*(3/5)+5/9 *(3/5)
=21*3+ 1/3
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出门在外也不愁53.4x10.1-5.34怎样简算?
原式=5.34×10×10.1-5.34
=5.34×(101-1)
=5.34×100
=534【请采纳】
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2&#47;5÷(3&#47;10-1&#47;15)怎样简便计算?
我有更好的答案
10-2/5÷1&#472/5÷3&#47
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