2.05÷0.82+2.89 简便运算
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2.05÷0.82+2.89简便运算2.05÷0.82+2.89简便运算2.05÷0.82+2.89简便运算(1.62+0.41)/0.82+2.89=2+0.5+2.89=2.5+2.89=5.39
2.05÷0.82+2.89 简便运算
2.05÷0.82+2.89 简便运算
2.05÷0.82+2.89 简便运算
(1.62+0.41)/0.82+2.89=2+0.5+2.89=2.5+2.89=5.39