7.86-(5.63+0.86)-1.37简便算法
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7.86-(5.63+0.86)-1.37简便算法
![7.86-(5.63+0.86)-1.37简便算法](/uploads/image/z/17578642-58-2.jpg?t=7.86-%EF%BC%885.63%2B0.86%EF%BC%89-1.37%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95)
7.86-(5.63+0.86)-1.37
= 7.86 - 5.63 - 0.86 - 1.37
= (7.86 - 0.86) - (5.63 + 1.37)
= 7 - 7
= 0
= 7.86 - 5.63 - 0.86 - 1.37
= (7.86 - 0.86) - (5.63 + 1.37)
= 7 - 7
= 0