66.6×9+22.2×33简便计算?
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2021-09-04
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这道题可以利用乘法分配率来进行简算。
过程如下:
66.6×9+22.2×33
=66.6×9+22.2×3×11
=66.6×9+66.6×11
=66.6×(9+11)
=66.6×20
=1332
看到了吧,这样算真的很简便
过程如下:
66.6×9+22.2×33
=66.6×9+22.2×3×11
=66.6×9+66.6×11
=66.6×(9+11)
=66.6×20
=1332
看到了吧,这样算真的很简便
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解:66.6×9+22.2×33
=22.2x3x9+22.2x33
=22.2x27+22.2x33
=22.2x(27+33)
=22.2x60=22.2x(50+10)
=22.2x50+22.2x10
=1110+222
=1332
=22.2x3x9+22.2x33
=22.2x27+22.2x33
=22.2x(27+33)
=22.2x60=22.2x(50+10)
=22.2x50+22.2x10
=1110+222
=1332
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66.6×9+22.2×33
=66.6×9+22.2×3×11
=66.6×9+66.6×11
=66.6×(9+11)
=66.6×20
=1332
=66.6×9+22.2×3×11
=66.6×9+66.6×11
=66.6×(9+11)
=66.6×20
=1332
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原式=22.2×3×9+22.2×33
=22.2×(27+33)
=22.2×60
=222×6
=1,332
=22.2×(27+33)
=22.2×60
=222×6
=1,332
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