我有一條數學問題唔識 , 幫手解答 ar( 數學F.1 )!!!!!!!!!!!!!!!( 要步驟 )
1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
更新1:
sorry; 1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２］｝
--聽日交-- 各位知識朋友 , 入黎幫我手 ar !!! ( 數學F.1 ) (5)
2007-09-13 3:29 am
各位知識朋友 , 入黎幫我手 ar !!!
我有一條數學問題唔識 , 幫手解答 ar( 數學F.1 )!!!!!!!!!!!!!!!( 要步驟 )
1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
我有一條數學問題唔識 , 幫手解答 ar( 數學F.1 )!!!!!!!!!!!!!!!( 要步驟 )
1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
回答 (9)
2007-09-13 3:36 am
✔ 最佳答案
1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝ ＝－４＋｛－１１＋［１０＋９］－［－３＋２７］｝
＝－４＋｛－１１＋［１９］－［２４］｝
＝－４＋｛－１１＋１９－２４｝
＝－４－１６
＝－２０
參考: me
2007-09-13 5:55 am
1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２］｝
=（－４）＋｛－１１＋［１０+９］+ 1 ｝
=（－４）＋｛19＋ 1 －１１｝
= 9 - 4
= 5
=（－４）＋｛－１１＋［１０+９］+ 1 ｝
=（－４）＋｛19＋ 1 －１１｝
= 9 - 4
= 5
參考: =.= 你咁遲先講真正既問題=.=
2007-09-13 4:12 am
.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
先解括號:.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
=(-4)+{-11+[10+9(負負得正)]-24}
=(-4)+{-11+19-24}
=-4+{-16}
=-4-16(正負得負)
=-20
咁就ko左..只要記住: 負負得正..正正得正...正負得負就咩問題都可以ko
先解括號:.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
=(-4)+{-11+[10+9(負負得正)]-24}
=(-4)+{-11+19-24}
=-4+{-16}
=-4-16(正負得負)
=-20
咁就ko左..只要記住: 負負得正..正正得正...正負得負就咩問題都可以ko
2007-09-13 3:42 am
（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
= (-4)+[-11+19]-24
= (-4)+8-24
= (-4)-16
= -20
= (-4)+[-11+19]-24
= (-4)+8-24
= (-4)-16
= -20
2007-09-13 3:39 am
( - 4 ) + { - 11 + [ 10 + 9 ] - [ - 3 + 27 ] }
= ( - 4 ) +{ - 11 + 19 - 2 4 }
= ( - 4 ) + { 8 - 2 4 }
= ( - 4 ) + ( - 1 6 )
= - 4 - 16
= -20 (不知道對不對)^^
= ( - 4 ) +{ - 11 + 19 - 2 4 }
= ( - 4 ) + { 8 - 2 4 }
= ( - 4 ) + ( - 1 6 )
= - 4 - 16
= -20 (不知道對不對)^^
參考: 自己
2007-09-13 3:35 am
.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
=(-4)+(-11+19)-24
=(-4)+8-24
=(-4)+(-16)
=-20,,
=(-4)+(-11+19)-24
=(-4)+8-24
=(-4)+(-16)
=-20,,
2007-09-13 3:35 am
=(-4) + { -11 + [19] - 24 }
=-4 + 16
=12
=-4 + 16
=12
2007-09-13 3:33 am
1.（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２７］｝
=-4-11+(10+9)+(3-27)
=-15+19-24
=-20//
=-4-11+(10+9)+(3-27)
=-15+19-24
=-20//
收錄日期: 2021-04-23 23:07:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070912000051KK03160