Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: Tính tổng các số nguyên biết x: a, -10 ≤ x ≤ 10 b, -10 < x ≤ 10 c, -100 ≤ x ≤ 99 d, -100 < x < 101

Toán Lớp 6: Tính tổng các số nguyên biết x:
a, -10 ≤ x ≤ 10
b, -10 < x ≤ 10 c, -100 ≤ x ≤ 99 d, -100 < x < 101

Comments ( 1 )

  1. a) -10 ≤ x ≤ 10
    =>>x in{-10;-9;-8;…;7;8;9;10}
    b) -10 < x ≤ 10
    =>x in{-9;-8;-7;…;7;8;9;10}
    c) -100 ≤ x ≤ 99
    =>x in{-100;-99;-98;-97;…;97;98;99}
    d) -100 < x < 101
    =>x in{-99;-98;-97;-96;…;97;98;99;100}

Leave a reply

222-9+11+12:2*14+14 = ? ( )