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: 3^2.5+2^3.10-81:3 Tính nhanh nhé

Toán Lớp 6: 3^2.5+2^3.10-81:3
Tính nhanh nhé

Comments ( 2 )

  1. 3^2. 5+2^3. 10-81:3
    =9.5+8.10-81:3
    =45+80-27
    =98
    ___________________________
    3^2. 5+2^3. 10-81:3
    =3^2 . 5+2^3  2.5-27
    =3^2 . 5+2^4 . 5-27
    =5.(3^2+2^4)-27
    =5.25-27
    =98
     

  2. Answer
    3^{2} . 5 + 2^{3} . 10 – 81 : 3
    = 3^{2} . 5 + 2^{3} . 2 . 5 – 27
    = 3^{2} . 5 + 2^{4} . 5 – 27
    = 5 . (3^{2} + 2^{4}) – 27
    = 5 . (9 + 16) – 27
    = 5 . 25 – 27
    = 125 – 27
    = 98

Leave a reply

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

About Linh