3.33*9.9+3.33 简便运算答案

题目

3.33*9.9+3.33 简便运算答案

答案

3.33×9.9+3.33
=3.33×(9.9+1)
=3.33×(10+1-0.1)
=3.33×10+3.33×1-3.33×0.1
=33.3+3.33-0.333
=36.297
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