就一道填空题
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就一道填空题就一道填空题 就一道填空题(2+1/3)(2-1/3)(2+0.1)(2-0.1)(2+1/3)(2-1/3)=4-1/9=35/9(2+0.1)(2-0.1)=4-0.01=3
就一道填空题
就一道填空题
就一道填空题
(2+1/3)(2-1/3)
(2+0.1)(2-0.1)
(2+1/3)(2-1/3)=4-1/9=35/9
(2+0.1)(2-0.1)=4-0.01=3.99
收起
（2+1/3)(2-1/3)=2*2-(1/3)*1/3=3又8/9
(2+0.1)(2-0.1)=2*2-0.1*0.1=3.99
