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

Toán Lớp 7: tính a) (-3,7) + 4,25 b) (-1,2): 3/10 – (-23) ^0 d) 6 ^3 : 6

Toán Lớp 7: tính
a) (-3,7) + 4,25
b) (-1,2): 3/10 – (-23) ^0
d) 6 ^3 : 6

Comments ( 1 )

  1. a) ( – 3,7) + 4,25 = 4,25 – 3,7 = 0,55
    b) (-1,2 ) : 3/10 – ( -23)^0
    = -12/10 . 10/3 – 1
    = -4 – 1
    = -5
    c) 6^3 : 6 = 6^{3-1} = 6^2 = 36
     

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