--聽日交-- 各位知識朋友 , 入黎幫我手 ar !!! ( 數學F.1 ) (5 new)

(－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２］｝
＝　(－４）＋｛－１１＋［１０－（－９）］－［－１］｝
＝　(－４）＋｛－１１＋［１０＋９］＋１｝
＝　(－４）＋｛－１１＋１９＋１｝
＝　(－４）＋　９
＝　５

2007-09-12 20:43:06 補充：
嘩，　咁多人回，不過好似我個靚仔　Ｄ請多多支持

(-4)+[-11+(19)+1]
=-4+(-11+19+1)
=-4+9
=5

（－４）＋﹛－１１＋［１０－（－９）］－［（－３）＋２］｝
＝（－４）＋〔－１１＋（１０＋９）〕－（－１）
＝（－４）＋（－１１＋１９）＋１
＝（－４）＋８＋１
＝５

多謝

(-4)+{-11+ -1 - 1}

=(-4)+(-9)

=-13
好易計姐
正負數加or -既口記

正正得正
負負得正
正負得負
負正得負

背熟左學負正數既四則就易好d

岩岩學 d老師都會教你用數線 好易明架炸

i think is :

=（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２］｝

= （－４）＋｛－１１＋［19］－［-1］｝

= （－４）＋｛-11+19+1｝

= （－４）＋｛9｝

=5

^ , ~

= =
（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２］｝
= -4+ [-11 +10+9+1]
=5

（－４）＋｛－１１＋［１０－（－９）］－［（－３）＋２］｝
= （－４）＋｛－１１＋［19］－［-1］｝
= （－４）＋｛-11+19+1｝
= （－４）＋｛9｝
=5

-4+[-11+(10+9)-(-1)]
=-4+(-11+19+1)
=-4+9
=5

唔知係唔係．．我想係７