0.3333乘以23加0.1111乘以31的简便运算
= 0.1111 x 3x 23 + 0.1111x 31
= 0.1111x ( 69+31)
= 0.1111 x 100
= 11.11
0.3333乘以23加0.1111乘以31的简便运算
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