(a) (+12)除(-4)-(-15)除(-3)
(b) (-5)(+6)+(+16)除(-8)
(c) (-6)除(+2)乘(-3)-(-5)乘(+6)除(-3)
我要步驟喔~~~
Thx for your help=]]]]]
有d數吾識計~help~ F.1 Maths【20點】
2010-01-01 2:42 am
回答 (3)
2010-01-01 2:56 am
✔ 最佳答案
(a) (+12)除(-4)-(-15)除(-3)=(12/-4)+(15/-3)
=-3+-5
=-8
(b) (-5)(+6)+(+16)除(-8)
=-30+(-2)
=-32
(c) (-6)除(+2)乘(-3)-(-5)乘(+6)除(-3)
=(-6/2)*-3+(5*6)/-3
=9+(-10)
=-1
ok finish
2010-01-01 2:54 am
(a) (+12)除(-4)-(-15)除(-3)
=(-3)-(+5)
=-8
(b) (-5)(+6)+(+16)除(-8)
=(-30)+(-2)
=-32
(c) (-6)除(+2)乘(-3)-(-5)乘(+6)除(-3)
=(+9)-(+10)
=-1
已先乘除後+-
希望幫到你=]
=(-3)-(+5)
=-8
(b) (-5)(+6)+(+16)除(-8)
=(-30)+(-2)
=-32
(c) (-6)除(+2)乘(-3)-(-5)乘(+6)除(-3)
=(+9)-(+10)
=-1
已先乘除後+-
希望幫到你=]
2010-01-01 2:54 am
(a) (+12)/(-4) - (-15)/(-3)
= -(12/4) - (+15/3)
= -12/4 - 15/3
= -36/12 - 60/12
= -96/12
= -8
(b) (-5)(+6) + (+16)/(-8)
= (-5x6) + (-16/8)
= -30 - 2
= -32
(c) (-6)/(+2)x(-3) - (-5)x(+6)/(-3)
= 6/2x3 - 5x6/3
= 9 - 10
= -1
= -(12/4) - (+15/3)
= -12/4 - 15/3
= -36/12 - 60/12
= -96/12
= -8
(b) (-5)(+6) + (+16)/(-8)
= (-5x6) + (-16/8)
= -30 - 2
= -32
(c) (-6)/(+2)x(-3) - (-5)x(+6)/(-3)
= 6/2x3 - 5x6/3
= 9 - 10
= -1
收錄日期: 2021-04-25 17:03:34
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