math急!!!!plz

2007-09-27 1:41 am
要寫步x..
1.(+24)/(-3)+(-10)
2.(-6)x(+7)-(-3)
3.(+4)-(-15)/(-5)

回答 (3)

2007-09-27 1:55 am
✔ 最佳答案
1~(正負得負)
(+24)/(-3)+(-10)
=-8-10
=-18
2~(正負得負)(負負得正)
(-6)x(+7)-(-3)
=-42+3
=-39
3~(負負得正)
(+4)-(-15)/(-5)
=4-3
=1
希望幫到你啦~^^~
2007-09-27 1:56 am
1) (+24)/(-3)+(-10)
=+8-10
=-2

2) (-6)x(+7)-(-3)
=-42+3
=-39

3) (+4)-(-15)/(-5)
=+4-3
=1

希望幫到你啦^^
參考: me
2007-09-27 1:46 am
1)
(+24) / (-3) + (-10)
= (-8) - 10
= -18

2)
(-6)*(+7) - (-3)
= (-42) + 3
= -39

3)
(+4) - (-15) / (-5)
= (+4) - (+3)
= 4 - 3
= 1
參考: ME


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