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

Toán Lớp 4: ( 3/8 +2/8)+1/8 …3/8+(2/8+1/8 .

Toán Lớp 4: ( 3/8 +2/8)+1/8 …3/8+(2/8+1/8 .

Comments ( 2 )

  1. #laviken#
    (3/8+2/8)+1/8=5/8+1/8=6/8
    3/8+(2/8+1/8)=3/8+3/8=6/8
    Vậy (3/8+2/8)+1/8=3/8+(2/8+1/8)
     

  2. Giải đáp:
    ( 3/8 +2/8)+1/8 = 3/8 + (2/8 + 1/8)
    Lời giải và giải thích chi tiết:
    ( 3/8 +2/8)+1/8  = 3/8 + 2/8 + 1/8= 3/8 + (2/8 + 1/8) 
    Áp dụng tính chất kết hợp

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

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