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 ( hợp lí nếu có thể ) a) ( -12 ) . ( -3 ) + 6 . ( -8 ) b) 19 . 50 – 19 . 60 c) -297 – ( 80 – 297 ) + 90 d) [ 4² . 3 – ( 16 – 12 )³

Tháng Hai 17, 2022 Toán học 1 Comment 0 views

Toán Lớp 6: Tính ( hợp lí nếu có thể )
a) ( -12 ) . ( -3 ) + 6 . ( -8 )
b) 19 . 50 – 19 . 60
c) -297 – ( 80 – 297 ) + 90
d) [ 4² . 3 – ( 16 – 12 )³] . ( -5 )

Comments ( 1 )

  1. kimoanh34
    kimoanh34
    17 Tháng Hai, 2022 at 2:37 sáng
    Reply
    a,
    (-12).(-3)+6.(-8)
    =36+(-48)
    =36-48
    =-12
    b,
    19.50-19.60
    =19.(50-60)
    =19.(-10)
    =-190
    c,
    -297-(80-297)+90
    =-297-80+297+90
    =(-297+297)+(-80+90)
    =0+10
    =10
    d,
    [4^2 . 3 – (16-12)^3].(-5)
    = [16.3-4^3].(-5)
    = [48-64].(-5)
    = (-16).(-5)
    = 80

Leave a reply

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

Thanh Tú

About Thanh Tú