
45.2×5.63-35.7×5.63怎样简便计算同样脱式?
1个回答
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45.2×5.63-35.7×5.63
=(45.2-35.7)×5.63
=9.5×5.63
=10×5.63-0.5×5.63
=56.3-2.815
=53.485
=(45.2-35.7)×5.63
=9.5×5.63
=10×5.63-0.5×5.63
=56.3-2.815
=53.485
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