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

Toán Lớp 2: a. 45 – 24-.17 + 10 24 + 35-.56 – 36 6 + 4-…7 + 2 b. 32 + 16-..20 + 28 37 – 17-..56 – 36 10 – 2–10 – 1.mình cần

Toán Lớp 2: a. 45 – 24…..17 + 10
24 + 35…..56 – 36
6 + 4…….7 + 2
b. 32 + 16……20 + 28
37 – 17……56 – 36
10 – 2……..10 – 1.mình cần gấn

Comments ( 2 )

  1. a,
    55 – 24 > 17 + 10
    -> 31 > 27
    24 + 35 > 56 – 36
    -> 59 > 20
    6 + 4 > 7 + 2
    -> 10 > 9
    b,
    32 + 16 = 20 + 28
    -> 48 = 48
    37 – 17 = 56 – 36
    -> 20 = 20
    10 – 2 < 10 – 1
    -> 8 < 9
     

  2. Giải đáp + giải thích các bước : 
    a.
    @ 45 – 24…..17 + 10
    -> 21 …. 27
    -> 21 < 27
    Vậy 45 – 24 < 17 + 10
    @ 24 + 35…..56 – 36
    -> 59 … 20
    -> 59 > 20
    Vậy 24 + 35 > 56 – 36
    @ 6 + 4…….7 + 2
    -> 10 … 9
    -> 10>9
    Vậy 6 + 4 > 7 + 2
    b.
    @ 32 + 16……20 + 28
    -> 48 …. 48
    -> 48 = 48
    Vậy 32 + 16 = 20 + 28
    @ 37 – 17……56 – 36
    -> 20 …. 20
    -> 20 = 20
    Vậy 37 – 17 = 56 – 36
    @ 10 – 2……..10 – 1
    -> 8 … 9
    -> 8 < 9
    Vậy 10 – 2 < 10 – 1
    Go od luck!
     

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