2.2x4.6+22×0.55-0.22怎么算简便?
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2.2*46+22*0.55-0.22=2.2*46+2.2*5.5-2.2*0.1=2.2*(46+5.5-0.1)=2.2*51.4=113.08
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2021-09-16
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运用乘法分配律,简便运算如下:
2.2×4.6+22×0.55-0.22
=0.22×10×4.6+0.22×100×0.55-0.22
=0.22×46+0.22×55-0.22
=0.22×(46+55-1)
=0.22×100
=22
2.2×4.6+22×0.55-0.22
=0.22×10×4.6+0.22×100×0.55-0.22
=0.22×46+0.22×55-0.22
=0.22×(46+55-1)
=0.22×100
=22
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2.2×4.6+22×0.55-0.22
=2.2×4.6+2.2×10×0.55-2.2×0.1
=2.2×(4.6+5.5-0.1)
=22
=2.2×4.6+2.2×10×0.55-2.2×0.1
=2.2×(4.6+5.5-0.1)
=22
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2.2x4.6+22×0.55-0.22简便计算
2.2x4.6+22×0.55-0.22
=0.22x46+0.22x55-0.22
=0.22x(46+55-1)
=0.22x100
=22
2.2x4.6+22×0.55-0.22
=0.22x46+0.22x55-0.22
=0.22x(46+55-1)
=0.22x100
=22
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