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| 2017/06/09 19:53:35瀏覽18｜回應0｜推薦0 | |
| 標題: maths!!中1數學題..教教我,10分 發問: 11 -10--- x -5--- (負10又2分之1 x 負5又3分之1=幾多??) 23 ______________ 1 -3----- 2 最佳解答: [(2x(-10)+1)/2]x[(3x(-5)+1)/3] ------------------------------------------- [(2x(-3)+1)/2] (-21/2)x(-16/3) = ------------------------------- (-7/2) 56 = ------------------- -3.5 = -16 2007-09-22 21:40:42 補充： 你用埋計數按再睇個答案教埋你按計數機[(-10 a b/c1a b/c 2)x(-5 a b/c1a b/c 3a b/c)]除(-3a b/c 1a b/c 2a b/c)個除號唔識打--"唔好以思!!希望幫到你
此文章來自奇摩知識+如有不便請留言告知 其他解答:11 -10--- x -5--- (負10又2分之1 x 負5又3分之1=幾多??) 23 ______________ 1 -3----- 2 (-21/2)(-16/3) =______________ -7/2 =(336/6)(-7/2) =56(-7/2) =-169|||||=+56 (!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!)|||||21 16 = - -------- x - -------- 2 3 =(-7)x(-8) =+56 2007-09-22 19:08:37 補充： 21 16= - -------- x - -------- 2 3係等於 2分之負21 乘 3分之負16 |
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