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

Toán Lớp 6: a 40-|-14| b |-4|+|+15| c |30-|-17|

Toán Lớp 6: a 40-|-14|
b |-4|+|+15|
c |30-|-17|

Comments ( 2 )

  1. Giải đáp :
    a) 40 – ( – 14 ) = 40 + 14 = 54
    b) ( – 4 ) + ( + 15 ) = ( – 4 ) + 15 = 11
    c) 30 – ( – 17 ) = 30 + 17 = 47

  2. a) 40-|-14|
    = 40 – 14
    = 26
    b) |-4|+|+15|
    = 4 + 15
    = 19
    c) |30-|-17| đề sai rồi 

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