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: a) -26.17+83.(-26)-40 b) -2021 mũ 0 -{15 mũ 2:[175 +(2 mũ 3. 5 mũ 2- 6.25)]}

Tháng Sáu 4, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: a) -26.17+83.(-26)-40
b) -2021 mũ 0 -{15 mũ 2:[175 +(2 mũ 3. 5 mũ 2- 6.25)]}

Comments ( 2 )

  1. trucoanh55
    trucoanh55
    4 Tháng Sáu, 2022 at 1:52 sáng
    Reply
    a) ( – 26 ) . 17 + 83 . ( – 26 ) – 40
    = ( – 26 ) . ( 17 + 83 ) – 40
    = ( – 26 ) . 100 – 40
    = ( – 2600 ) – 40
    = – 2640
    b) ( – 2021 )^0 – { 15^2 : [ 175 + ( 2^3 . 5^2 – 6 . 25 ) ] }
    = 1 – { 15^2 : [ 175 + ( 8 . 25 – 6 . 25 ) ] }
    = 1 – { 225 : [ 175 + 25 . ( 8 – 6 ) ] }
    = 1 – { 225 : [ 175 + 25 . 2 ] }
    = 1 – { 225 : [ 175 + 50 ] }
    = 1 – { 225 : 225 }
    = 1 – 1
    = 0

  2. maianh67
    maianh67
    4 Tháng Sáu, 2022 at 1:51 sáng
    Reply
    -26.17+83.(-26)-40
    =-26(17+83)-40
    =-26.100-40
    =-2600-40
    =-2640
                                                        
    -2021^0-{15²:[175+(2³.5²-6.25)]}
    =1-{225:[175+(8.25-150)]}
    =1-{225:[175+(200-150)]}
    =1-{225:[175+50]}
    =1-{225:225}
    =1-1
    =0
     

Leave a reply

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

Nhã Trúc

About Nhã Trúc