1.11×9.9+8.88×8.9怎么简算
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=1.11×9.9+1.11×8×8.9
=1.11×(9.9+8×8.9)
=1.11×(1+8.9+8×8.9)
=1.11×(1+9×8.9)
=1.11×(1+9×9-9×0.1)
=1.11×(82-0.9)
=1.11×81.1
=1.11×80+1.11×1+1.11×0.1
=88.8+1.11+0.111
=89.91+0.111
=90.021
=1.11×(9.9+8×8.9)
=1.11×(1+8.9+8×8.9)
=1.11×(1+9×8.9)
=1.11×(1+9×9-9×0.1)
=1.11×(82-0.9)
=1.11×81.1
=1.11×80+1.11×1+1.11×0.1
=88.8+1.11+0.111
=89.91+0.111
=90.021
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简便计算过程如下,原式=1.11×9.9+1.11×8×8.9=1.11×(9.9+8×8.9)=1.11+81.1=82.21
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