elahism的部落格

標題:

10題數學唔識!HELP ME!!!20點

發問:

1. (-3)-2.2-9-(-12)=? 2. 6乘3-(-27)除9=? 3. (-12)乘(-5)-(-3)乘(-6)=? 4. 4乘(-7)+9除(-3)=? 5. (-21)除3-5乘(-5)=? 6. 10乘3-(-8)乘5=? 7. -45乘(-8)-(-13)=? 8. -45乘(-8)-(-13)乘5=? 9. 3除(-4)-(-2)除3=? 10. (-3)除(-7)+(-5)除14=?

最佳解答:

1. (-3)-2.2-9-(-12) =-3-2.2-9+12 =-2.2 2. 6乘3-(-27)除9 =18-(-27除9) =18+3 =21 3. (-12)乘(-5)-(-3)乘(-6) =60-18 =42 4. 4乘(-7)+9除(-3) =-28-3 =-31 5. (-21)除3-5乘(-5) =-7+25 =18 6. 10乘3-(-8)乘5 =30+40 =70 7. -45乘(-8)-(-13) =360+13 =373 8. -45乘(-8)-(-13)乘5 =360+65 =425 9. 3除(-4)-(-2)除3 =-9/12+8/12 =-1/12 10. (-3)除(-7)+(-5)除14 =6/14-5/14 =1/14

• 蛋糕的咖啡忌廉怎樣整的-
• 台中市南屯區有手藝行嗎
• 評下我既2010足球陣容
• 高雄大遠百有什麼好吃的-
• 新楓之谷可愛的寵物主人勳章
• 神奇寶貝鑽石版路卡利歐的蛋
• 熱力鎮痛乳膏
• 證照超商繳費日期超過
• 本協會要做地圖，想請問車上有裝衛星導行的各位，可以幫我查一點
• 火影264動畫

 

此文章來自奇摩知識+如有不便請留言告知

其他解答:

1 . -2.2 2 . 21 3 . 42 4 . -10 5 . -38 6 . 70 7 . -347 8 . 425 9 . 0.083...... 10. 0.071428571 42857......|||||1. (-3)-2.2-9-(-12) =-3-2.2-9+12 =-2.2 2. 6乘3-(-27)除9 =18-(-27除9) =18+3 =21 3. (-12)乘(-5)-(-3)乘(-6) =60-18 =42 4. 4乘(-7)+9除(-3) =-28-3 =-31 5. (-21)除3-5乘(-5) =-7+25 =18 6. 10乘3-(-8)乘5 =30+40 =70 7. -45乘(-8)-(-13) =360+13 =373 8. -45乘(-8)-(-13)乘5 =360+65 =425 9. 3除(-4)-(-2)除3 =-9/12+8/12 =-1/12 10. (-3)除(-7)+(-5)除14 =6/14-5/14 =1/14|||||1. (-3)-2.2-9-(-12) = (- 3) - 9 + 12 - 2.2 = -2.2 2. 6乘3-(-27)除9 = 6 x 3 - (-27 / 9) = 18 - (- 3) = 21 3. (-12)乘(-5)-(-3)乘(-6) = (- 12) x (- 5) - [(-3) x (-6)] = 60 - 18 = 42 4. 4乘(-7)+9除(-3) = 4 x (-7) + [9 / (-3)] = -28 + (-3) = -28 - 3 = -31 5. (-21)除3-5乘(-5) = -21 / 3 - (5 x - 5) = -7 - (-25) = -7 + 25 = 18 6. 10乘3-(-8)乘5 = 10 x 3 - ( - 8 x 5) = 30 - (-40) = 30 + 40 = 70 7. -45乘(-8)-(-13) = - 45 x (-8) + 13 = 360 + 13 = 373 8. -45乘(-8)-(-13)乘5 = - 45 x (-8) + (-13 x 5) = 360 + (-65) = 360 - 65 = 295 9. 3除(-4)-(-2)除3 = 3 / (-4) - [(-2) / 3] = (- 9 / 12) - (- 8 / 12) = - 9 / 12 + 8 / 12 = - 1 / 12 (即負12分之1) 10. (-3)除(-7)+(-5)除14 = -3 / -7 + (-5 / 14) = 3 / 7 - 5 / 14 = 6 / 14 - 5 / 14 = 1 / 14 (即14分之1) 2009-07-18 17:47:31 補充： sorry... 第8題應該係... -45乘(-8)-(-13)乘5 = - 45 x (-8) - (-13 x 5) = 360 - (-65) = 360 + 65 = 425|||||1. (-3)-2.2-9-(-12) =2.2 2. 6乘3-(-27)除9 =15 3. (-12)乘(-5)-(-3)乘(-6) =42 4. 4乘(-7)+9除(-3) =-31 5. (-21)除3-5乘(-5) =-6 6. 10乘3-(-8)乘5 =70 7. -45乘(-8)-(-13) =373 8. -45乘(-8)-(-13)乘5 =425 9. 3除(-4)-(-2)除3 =1/12 10. (-3)除(-7)+(-5)除14 =1/1413413D6BADCE0D57