入來睇下識唔識先啦!!- ((20分))－hzb53jl55v的部落格

標題:

入來睇下識唔識先啦!!* ((20分))

發問:

1. (-5)+(-6)X(-2)= 2.(-52)-(+52)除(-4)= 3.(+7)-(+9)除(+3)= 4.(-13)X(+20)除(-5)= 5.(+27)-(-42)X(+3)= 6.(+10)+(-8)-(-7)-(-9)= 7(-12)X(-12)+(-11)X(-11)= 8.15X5-3X(2)-2-(1)= (這條答案好像是68 但我怎麼也計不出-___-") 要有計算過程*

最佳解答:

1)(-5)+(-6)X(-2) =(-5)+12 =7 2)(-52)-(+52)除(-4) =(-52)-(-13) =-39 3.(+7)-(+9)除(+3) =7-3 =4 4.(-13)X(+20)除(-5) =(-13)x(-4) =52 5.(+27)-(-42)X(+3) =27-(-126) =153 6.(+10)+(-8)-(-7)-(-9) =10-8+7+9 =18 7(-12)X(-12)+(-11)X(-11) =144+121 =265 8.15X5-3X(2)-2-(1) =75-6-2-1 =66 應該岩GA LA .. HOPE CAN HELP U ~

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其他解答:

1.(-5)+(-6)X(-2) =(-5)+12 =7 2.(-52)-(+52)除(-4) =(-52)-(-13) =39 3.(+7)-(+9)除(+3) =(+7)-(+3) =4. 4.(-13)X(+20)除(-5) =(-260)除(-5) =52 5.(+27)-(-42)X(+3) =(+27)-(-126) =(-99) 6.(+10)+(-8)-(-7)-(-9) =(+2)-(-7)-(-9) =(+9)-(-9) =18 7.(-12)X(-12)+(-11)X(-11) =(+144)+(+121) =265 8.15X5-3X(2)-2-(1) =75-6-2-1 =69-2-1 =67-1 =66 .|||||(1) (--5)+(+12) =(--5)+12 =+7 (2) (--52)--(--13) =(--52)+13 = --39 (3) (+7)--(+3) =(+7)--3 =+4 (4) (--260)除(--5) =+52 (5) (+27)--(--126) =(+27)+126 =+153 (6) (+10)--8+7+9 =+2+7+9 =+18 (7) (+144)+(+121) =+265 (8) 75--6--2--1 =+66|||||1. (-5)+(-6)X(-2) = (-5)+ 12 = 12 - 5 =7 2.(-52)-(+52)除(-4) =(-52) - (-13) =(-52) + 13 =-39 3.(+7)-(+9)除(+3) = 7 - 3 =4 4.(-13)X(+20)除(-5) = (-260) 除(-5) =51 5.(+27)-(-42)X(+3) = 27 - (-126) =153 6.(+10)+(-8)-(-7)-(-9) = 2 -(-7)-(-9) = 2 +7 +9 =18 7(-12)X(-12)+(-11)X(-11) = 144 + 121 =265 8.15X5-3X(2)-2-(1) = 75 - 6 -2 -1 =66 (<---計吾出68....-_____-",,,系咪本書有問題-0-?)|||||1.(-5)+(-6)x(-2) =(-5)+12 =7 2.(-52)-(+52)除(-4) =(-52)-(-13) =-39 3.(+7)-(+9)除(+3) =(+7)-(3) =4 4.(-13)X(+20)除(-5) =(-13)X(-4) =52 5.(+27)-(-42)X(+3) =(+27)-(-126) =153 6.(+10)+(-8)-(-7)-(-9) =(-18)-(-7)-(-9) =(-11)-(-9) =-2 7(-12)X(-12)+(-11)X(-11) =144+121 =265 8.15X5-3X(2)-2-(1) =75-6-2-1 =66|||||在表示數字的正負值時, 除了答案和特別情外, 加上正號是多餘的。 1)(-5)+(-6)*(-2) =(-5)+12 =12 - 5 =7 2)(-52)-(52)/(-4) =(-52)-(-13) = - 52+13 = - 39 3) 7-9/3 =7 - 3 =4 4)(-13)*(20)/(-5) =(-13)*(-4) =52 5)(27) - (-42)*3 =27 - (-126) =27+126 =153 6) 10+(-8) - (-7) - (-9) =10 - 8 + 7 + 9 =18 7) (-12)*(-12)+(-11)*(-11) =144+121 =365 8) 15*5 - 3*2 - 2 - 1 =75 - 6 - 2 - 1 =75 - 9 =64 第8條可能係你抄錯題目,否則便是答案錯 2007-09-30 19:10:08 補充： 8條錯左,係66先正確|||||1. (-5)+(-6)X(-2)=23√ 2.(-52)-(+52)除(-4)=-56√ 3.(+7)-(+9)除(+3)=89√ 4.(-13)X(+20)除(-5)=25√ 5.(+27)-(-42)X(+3)=129√ 6.(+10)+(-8)-(-7)-(-9)=148√ 7(-12)X(-12)+(-11)X(-11)=195√ 8.15X5-3X(2)-2-(1)=68√|||||1. (-5)+(-6)X(-2)= = - 5 + 12 = 7 2.(-52)-(+52)除(-4)= = - 52 - (-13) = - 52 + 13 = - 39 3.(+7)-(+9)除(+3)= = 7 - 3 = 4 4.(-13)X(+20)除(-5)= = - 13 * ( - 4) = 52 5.(+27)-(-42)X(+3)= = 27 - (-126) = 153 6.(+10)+(-8)-(-7)-(-9)= = 2+7+9 = 18 7(-12)X(-12)+(-11)X(-11)= = 144 + 121 = 265 8.15X5-3X(2)-2-(1)= = 75 - 6 - 2 - 1 = 68