S1 Maths English

(-5)除(+5)+(-9)x(+9)
= (-1) + (-81)
= - 82

[(-8)+18]除(-5)+(-8)
= (+10) 除(-5) + (-8)
= (-2) + (-8)
= - 10

Comment:
[(-8)+18] 是 +10, 不是 -10


$12334 (譯英文)

Twelve thousand three hundred and thirty-four dollars

Comment:
thirty-four 正確英語有 hyphen, dollars 這個字不可以 missing

(-5)除(+5)+(-9)x(+9)=-1+(-9)x(+9) =-1+(-81)=-1-81=-82 [(-8)+18]除(-5)+(-8)=(-10)除(-5)+(-8)=2+(-8)=2-8=-6 $12334=twelve thousand three hundred and thirty four(do not put 'and' in the middle)

2011-09-23 20:45:58 補充：
I mean do not:twelve thousand and three hundred and thirty four!!!

2011-09-23 20:47:10 補充：
dollar

2011-09-23 20:47:42 補充：
dollars