
33.3乘以44.5减66.6乘以22.2的简便计算
1个回答
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原式
=33.3x44.5-66.6x22.2
=33.3x44.5-33.3x2x22.2
=33.3x44.5-33.3x44.4
=33.3x(44.5-44.4)
=33.3x0.1
=3.33
=33.3x44.5-66.6x22.2
=33.3x44.5-33.3x2x22.2
=33.3x44.5-33.3x44.4
=33.3x(44.5-44.4)
=33.3x0.1
=3.33
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