1.(+18)x(-24)÷(-9)÷(-6)
2.(-2)(+2)-〔(+12)-(-3)〕〔(-4)(-9)+(-22)〕
2題maths (10分)
2007-10-09 6:07 am
回答 (3)
2007-10-09 5:07 pm
✔ 最佳答案
①(+18)x(-24)÷(-9)÷(-6)
=-(18x24÷9÷6)
=-[(18÷9)x(24÷6)]
=-(2x4)
=-8
②
(-2)(+2)-[(+12)-(-3)][(-4)(-9)+(-22)]
=-(2x2)-(12+3)[+(4x9)-22]
=-4-(15)(36-22)
=-4-15x14
=-4-210
=-214
2007-10-09 9:53 am
1.(+18)x(-24)÷(-9)÷(-6)
解:= -432*( -1/9)*( -1/6)
= 48*(-1/6)
= -8
2.(-2)(+2)-〔(+12)-(-3)〕〔(-4)(-9)+(-22)〕
解:= -4-[15*(36-22)]
= -4- (15*14)
= - 4 -14
= -18
2007-10-09 01:55:01 補充：
1.(+18)x(-24)÷(-9)÷(-6)解:= -432*( -1/9)*( -1/6)= 48*(-1/6)= -82.(-2)(+2)-〔(+12)-(-3)〕〔(-4)(-9)+(-22)〕 解:= -4-[15*(36-22)]= -4- (15*14)= - 4 -210= -214
解:= -432*( -1/9)*( -1/6)
= 48*(-1/6)
= -8
2.(-2)(+2)-〔(+12)-(-3)〕〔(-4)(-9)+(-22)〕
解:= -4-[15*(36-22)]
= -4- (15*14)
= - 4 -14
= -18
2007-10-09 01:55:01 補充：
1.(+18)x(-24)÷(-9)÷(-6)解:= -432*( -1/9)*( -1/6)= 48*(-1/6)= -82.(-2)(+2)-〔(+12)-(-3)〕〔(-4)(-9)+(-22)〕 解:= -4-[15*(36-22)]= -4- (15*14)= - 4 -210= -214
參考: 自己
2007-10-09 6:10 am
1. -8
2. -214
2. -214
收錄日期: 2021-04-13 13:50:04
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071008000051KK04452