9.99*7.88+3.33*6.66简算
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9.99*7.88+3.33*6.66简算9.99*7.88+3.33*6.66简算9.99*7.88+3.33*6.66简算9.99×7.88+3.33×6.66=9.99×7.88+9.99×2.
9.99*7.88+3.33*6.66简算
9.99*7.88+3.33*6.66简算
9.99*7.88+3.33*6.66简算
9.99×7.88+3.33×6.66
=9.99×7.88+9.99×2.22
=9.99×(7.88+2.22)
=9.99×10.1
=9.99×(10+0.1)
=9.99×10+9.99×0.1
=99.9+0.999
=100.899
9.99*7.88+3.33*6.66简算
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