巧算 38*25*6*5*22
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巧算 38*25*6*5*22
38*25*6*5*22简便计算
38*25*6*5*22简便计算讲解清楚
巧算125×64×25×5
7/25x3/16+22/25x7/16=巧算?
138×38-38×38巧算
64*25*87*125*5巧算
巧算:125〜×64×25×5
12,-4,8,-32,-24,768,()5,3,7/3,2,9/5,5/3,()6,7,18,23,38,()2,3,7,25,121,()12,16,22,30,39,49,()
数字密码破解9,12,15,22,5,25,15,21,6,5,22,5,18
444×38+888×31 巧算
巧算 72×38+19×56
巧算 76*48+38*4
巧算25乘以5乘以64乘以125怎么做?
谁帮我算下均数±标准差第一组:年龄:21,22,27,28,16,16,15,16,16,15,16,17,17,12,10,16,4,15,19,16,61,4,14,14,9,5,2,9,4,55,14,38,11,3,3,10,32,22,22,33,23,27,21,15,5,38,37,6,22,31,35,52,25,14,20,17,14,14,16,52,5,35,16,15,32,28,15第二组
帮我算下均值±标准差第一组:年龄:21,22,27,28,16,16,15,16,16,15,16,17,17,12,10,16,4,15,19,16,61,4,14,14,9,5,2,9,4,55,14,38,11,3,3,10,32,22,22,33,23,27,21,15,5,38,37,6,22,31,35,52,25,14,20,17,14,14,16,52,5,35,16,15,32,28,15,平均年
计算(5/3+11/4+19/5+29/6)/(10/3+22/4+38/5+58/6
22,39,25,38,31,37,40,36,(52)为什么3 6 9 后面就应该是12呢