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: 1a) 5+(-10) b) (-12)+(-6) c) 13.75+13.25-1200

Toán Lớp 6: 1a) 5+(-10)
b) (-12)+(-6)
c) 13.75+13.25-1200

Comments ( 2 )

  1. Giải đáp+ Lời giải và giải thích chi tiết:
    $\text{a, 5+ (-10)}$
    $\text{ = -5}$
    $\text{b, (-12)+(-6)}$
    $\text{= -(12+6)}$
    $\text{= -18}$
    $\text{c, 13.75+13.25-1200}$
    $\text{= 13. (75+25)-1200}$
    $\text{= 13. 100- 1200}$
    $\text{= 1300-1200}$
    $\text{= 100}$
     

  2. a) 5 + ( – 10 )
    = 5 – 10
    = – 5
    b) ( – 12 ) + ( – 6 )
    = – ( 12 + 6 )
    = – 18
    c) 13 . 75 + 13 . 25 – 1200
    = 13 . ( 75 + 25 ) – 1200
    = 13 . 100 – 1200
    = 1300 – 1200
    = 100

Leave a reply

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