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6.8x9.9怎么用简便运算

6.8X9.9简便方法计算回答:6.8X(10-0.1) =6.8X10-6.8X0.1 =67.32 求采纳

6.8X9.9十6.8Ⅹ0.1的简便计算?解题步骤:6.8X9.9十6.8Ⅹ0.1 =6.8×(9.9+0.1)=6.8×10 =68 提升:1.上学前一天把第二天要学的内容看一次,不用

6.8+9.9×68用简便计算怎么做?回答:68X(9.9+0.1)=680

【怎么简算6.18乘9.9+0.618】楼上正解,付第二种解法6.18X9.9+0.618=6.18X(10-0.1)+0.618=61.8-0.618+0.

6.7*9.9怎样简便运算6.7*9.9=6.7*(10-0.1)=67-0.67=66.33

6.8+9.9x68这道题用简便计算怎么做?回答:原式=6.8+6.8x99 =6.8x(99+1) =6.8x100=680

6.58×4.5×0.9怎么简便计算简便计算:6.58×4.5-0.9 =29.61-0.9 =28.71

6.95X8.9 11X0.695怎么简便计算?递等式计算)需在该原则前提下进行 解题过程:6.95×8.9+11×0.695 =6.95×(8.9+1.1)=6.95×10 =69.5

6.1X6.8十93.9X6.8简便计算怎么算?回答:6.1X6.8十93.9X6.8简便计算怎么算? 6.1X6.8十93.9X6.8 = (6.1+ 93.9) X6.8 =100 X6.8 =68

用简便方法计算9.72x6.8+9.725.2-97.20.2怎样算?_百=9.72×(6.8+5.2-2)=9.72×10 =97.2 这样计算比较简便 下边这些都是简便方法计算 方法一

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