9.99*111+3.33*667简便计算

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9.99*111+3.33*667简便计算9.99*111+3.33*667简便计算9.99*111+3.33*667简便计算9.99*111+3.33*667=3.33×3×111+3.33×667

9.99*111+3.33*667简便计算
9.99*111+3.33*667简便计算

9.99*111+3.33*667简便计算
9.99*111+3.33*667
=3.33×3×111+3.33×667
=3.33×(333+667)
=3.33×1000
=3330

9.99*111+3.33*667
=3.33*3*111+3.33*667
=3.33*(333+667)
=3.33*1000
=3330

3.33x(333+667)=3.33x1000=3330