9.99×222+3.33×333+3.33,的简便运算?
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9.99×222+3.33×333+3.33,的简便运算?
9.99×222+3.33×333+3.33
=3.33x3x222+3.33x333+3.33
=3.33x(666+333+1)
=3.33x1000
=3330
9.99×222+3.33×333+3.33
=3.33x3x222+3.33x333+3.33
=3.33x(666+333+1)
=3.33x1000
=3330
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9.99×222+3.33×333+3.33
=3.33×666+3.33×333+3.33
=3.33x(666+333+1)
=3.33x1000
=3330
=3.33×666+3.33×333+3.33
=3.33x(666+333+1)
=3.33x1000
=3330
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答:∵9.99=3.33x3,∴原式可以变形为即9.99x222+3.33x333+3.33=3.33x3x222+3.33x333+3.33=3.33x(666+333+1)=3.33x1000=3330。希望帮到你。
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这道题的简便算法如下:9.99×222+3.33×333+3.33=3.33×666+3.33×333+3.33=3.33×666+3.33×(333+1)=3.33×666+3.33×334=3.33×(666+334)=3.33×1000=3330
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9.99×222+3.33×333+3.33
=3.33x3x222+3.33x333+3.33
=3.33x(3x222+333+1)
=3.33x1000
=3330
=3.33x3x222+3.33x333+3.33
=3.33x(3x222+333+1)
=3.33x1000
=3330
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