22.05×8.2-20.05×4.5+27.95×3.7用简便算法等于多少
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22.05×8.2-20.05×4.5+27.95×3.7
=22.05×(8.2-4.5)+27.95×3.7
=22.05×3.7+27.95×3.7
=3.7×(22.05+27.95)
=3.7×50
=185
=22.05×(8.2-4.5)+27.95×3.7
=22.05×3.7+27.95×3.7
=3.7×(22.05+27.95)
=3.7×50
=185
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