9.81×0.1+8.99×98.1+98.1脱式计算怎么算?
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解:9.81×0.1+8.99×98.1+98.1等于( 981 )
∵已知需求出9.81×0.1+8.99×98.1+98.1等于多少
X × Y + X × Z = X × (Y + Z)
∴9.81 × 0.1 + 8.99 × 98.1 + 98.1
= 9.81 × (0.1 + 8.99 × 10 + 10)
= (9×100+81)/100 × (0.1 + 89.9 + 10)
= 981/100 × (90 + 10)
= 981/100 × 100
= 981
答:9.81×0.1+8.99×98.1+98.1等于981
∵已知需求出9.81×0.1+8.99×98.1+98.1等于多少
X × Y + X × Z = X × (Y + Z)
∴9.81 × 0.1 + 8.99 × 98.1 + 98.1
= 9.81 × (0.1 + 8.99 × 10 + 10)
= (9×100+81)/100 × (0.1 + 89.9 + 10)
= 981/100 × (90 + 10)
= 981/100 × 100
= 981
答:9.81×0.1+8.99×98.1+98.1等于981
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脱式计算是一个数学学科术语,即递等式计算,把计算过程完整写出来的运算,也就是脱离竖式的计算。
9.81×0.1+8.99×98.1+98.1
=98.1x0.01+8.99x98.1+98.1
=98.1x(0.01+8.99+1)
=98.1x10
=981。
9.81×0.1+8.99×98.1+98.1
=98.1x0.01+8.99x98.1+98.1
=98.1x(0.01+8.99+1)
=98.1x10
=981。
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解: 9.81x0.1+8.99x98.1+98.1
=98.1x(0.01+8.99+1)
=98.1x(9+1)
=98.1x10
=981
=98.1x(0.01+8.99+1)
=98.1x(9+1)
=98.1x10
=981
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