(6/(-7))*(-57)-(6/7)*(-27) 用简便算法算,
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![(6/(-7))*(-57)-(6/7)*(-27) 用简便算法算,](/uploads/image/z/1087915-67-5.jpg?t=%286%2F%28-7%29%29%2A%28-57%29-%286%2F7%29%2A%28-27%29+%E7%94%A8%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E7%AE%97%2C)
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(6/(-7))*(-57)-(6/7)*(-27) 用简便算法算,
(6/(-7))*(-57)-(6/7)*(-27) 用简便算法算,
(6/(-7))*(-57)-(6/7)*(-27) 用简便算法算,
(6/(-7))*(-57)-(6/7)*(-27)
=6/7*(57+27)
=6/7*84
=72
(6/(-7))*(-57)-(6/7)*(-27) 用简便算法算,
-6/7×(-57)-6/7×(-27)等于多少 越快越好 xie
简算:7分之1乘以57又6分之1
1/7*57又1/6的简便运算
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7/6+13/12+21/20+31/30+43/42+57/56 7/6+13/12+21/20+31/30+43/42+57/56
6,7
6 7
6 7
6 7
6,7,
6,7,
6,7,
6 7
6,7,
6/7
6,7
6-7