3.01×2.3-2.3用简便算式怎么算?
3个回答
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3.01×2.3-2.3=(3.01-1)×2.3=(2+0.01)×2.3=4.6+0.023=4.623
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1.把2.3转换为2.3×1
2.提取2.3
3.再用分配律简便运算
3.01×2.3-2.3
=3.01×2.3-2.3×1
=2.3×(3.01-1)
=2.3×(2+0.01)
=2.3×2+2.3×0.01
=4.6+0.023
=4.623
2.提取2.3
3.再用分配律简便运算
3.01×2.3-2.3
=3.01×2.3-2.3×1
=2.3×(3.01-1)
=2.3×(2+0.01)
=2.3×2+2.3×0.01
=4.6+0.023
=4.623
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2021-04-18
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=(3.01-1)*2.3
=2.01*2.3
=(2+0.01)*2.3
=2*2.3-0.01*2.3
=4.6-0.023
=4.577
=2.01*2.3
=(2+0.01)*2.3
=2*2.3-0.01*2.3
=4.6-0.023
=4.577
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