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

Toán Lớp 6: thực hiện phép tính a.34.176-34.76 b.87.3^3+64.73-23.3^3 C.3^8:3^5+2015^0-(100-95)^2 d.9.2.23+18.32+3.6.45 e.9.2^3-5^2(2016^0-1^2016)

Toán Lớp 6: thực hiện phép tính
a.34.176-34.76
b.87.3^3+64.73-23.3^3
C.3^8:3^5+2015^0-(100-95)^2
d.9.2.23+18.32+3.6.45
e.9.2^3-5^2(2016^0-1^2016)
f.(10^2.13^2016+69.13^2016):13^2017

Comments ( 2 )

  1. a.34.176-34.76

    = 34 . ( 176 – 76 )

    = 34 . 100

    = 3400

    b.87.3^3+64.73-23.3^3

    = 87 . 27 + 64 . 73 – 23 . 27

    = 27 . ( 87 – 23 ) + 64 . 73

    = 27 . 64 + 64 . 73

    = 64 . ( 27 + 73 )

    = 64 . 100

    = 6400

    c.3^8:3^5+2015^0-(100-95)^2

    = 3^3+ 1 – 5^2

    = 27 + 1 – 25

    = 28 – 25

    = 3

    d.9.2.23+18.32+3.6.45

    = 18 . 23 + 18 . 32 + 18 . 45

    = 18 . ( 23 + 32 + 45 )

    = 18 . 100

    = 1800

    e.9.2^3-5^2(2016^0-1^2016)

    = 9 . 8 – 25 . ( 1 – 1 )

    = 72 – 25 . 0

    = 72 – 0

    = 72

    f.(10^2.13^2016+69.13^2016):13^2017

    = [13^2016 . ( 10^2 + 69 )] : 13^2017

    = [13^2016 . ( 100 + 69 )] : 13^2017

    = ( 13^2016 . 169 ) : 13^2017

    = ( 13^2016 . 13 . 13 ) : 13^2017

    = 13^2017 . 13 : 13^2017

    = ( 13^2017 : 13^2017 ) . 13

    = 1 . 13 

    = 13

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