4.6×4.7+4.6×5.4-4.6简便方法运算?
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4.6×4.7+4.6×5.4-4.6
=4.6×(4.7+5.3+0.1)-4.6
=4.6×10+0.46-4.6
=46+0.46-4.6
=46.46-4.6
=41.86
=4.6×(4.7+5.3+0.1)-4.6
=4.6×10+0.46-4.6
=46+0.46-4.6
=46.46-4.6
=41.86
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因为三个乘式中都有4.6,所以运用乘法分配律逆运算就是有4.6×(4.7+5.4-1)=4.6×9.1=4.6×(10-0.9)=41.86
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4.6×4.7+4.6×5.4-4.6
=4.6×(4.7+5.3+0.1)-4.6
=4.6×10+0.46-4.6
=46+0.46-4.6
=46.46-4.6
=41.86
=4.6×(4.7+5.3+0.1)-4.6
=4.6×10+0.46-4.6
=46+0.46-4.6
=46.46-4.6
=41.86
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