
4.44*66.7+22.2*6.66怎么jia简便
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4.44×66.7+22.2×6.66
=4.44×66.7+2.22×2×33.3
=4.44×(66.7+33.3)
=4.44×100
=444
=4.44×66.7+2.22×2×33.3
=4.44×(66.7+33.3)
=4.44×100
=444
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