1.725+2.725+3.725+4.75+5.725的简便运算是什么?
4个回答
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简便运算过程如下:
1.725+2.725+3.725+4.75+5.725
=(1+2+3+4+5)+0.725×4+0.75
=15+2.9+0.75
=18.65
1.725+2.725+3.725+4.75+5.725
=(1+2+3+4+5)+0.725×4+0.75
=15+2.9+0.75
=18.65
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1.725+2.725+3.725+4.75+5.725
=1+0.725+2+0.725+3+0.725+4+0.75+5+0.725
=1+2+3+4+5+0.725x4+0.75
=15+0.725x4+0.75
=15+2.9+0.75
=18.65
=1+0.725+2+0.725+3+0.725+4+0.75+5+0.725
=1+2+3+4+5+0.725x4+0.75
=15+0.725x4+0.75
=15+2.9+0.75
=18.65
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1.725+2.725+3.725+4.75+5.725
=15+0.725×4+0.75
=15+2.9+0.75
=18.65.
可以吗?
=15+0.725×4+0.75
=15+2.9+0.75
=18.65.
可以吗?
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你对这个回答的评价是?
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▲1.725+2.725+3.725+4.75+5.725
=(1+2+3+4+5)+4x0.725+0.75
=15+2.9+0.75
=15+3.65
=18.65
▲ 1.725+2.725+3.725+4.75+5.725
=(2-0.275)+(3-0.275)+(4-0.275)+(5-0.25)+(6-0.275)
=2+3+4+5+6-4x0.275-0.25
=20-1.1-0.25
=20-1.35
=18.65
=(1+2+3+4+5)+4x0.725+0.75
=15+2.9+0.75
=15+3.65
=18.65
▲ 1.725+2.725+3.725+4.75+5.725
=(2-0.275)+(3-0.275)+(4-0.275)+(5-0.25)+(6-0.275)
=2+3+4+5+6-4x0.275-0.25
=20-1.1-0.25
=20-1.35
=18.65
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