简算:4.4×5.5-44×0.33-0.44×22=?要细节
3个回答
4.4×5.5-44×0.33-0.44×22
=4.4×5.5-4.4×3.3-4.4×2.2
=4.4×(5.5-3.3-2.2)
=4.4×0
=0
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