1﹣2+3﹣4+5﹣6+…+2001﹣2002的值是____
Name: Macy
Age: 10
Country: Canada
Family: father, mother, brother and me
School: Garden Primary School
Favourite subjects: Music, Art
Hobbies: drawing, playing the piano
Dear Wang Li,
Thank you for your email and your photo.
I'd like to be your e-friend too.
I am from
Write soon.
Yours
Macy