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

Toán Lớp 5: Tính bằng cách hợp lí : 4,73 x 5,42 + 2,58 x 4,73 + 4,73 x 2

Toán Lớp 5: Tính bằng cách hợp lí : 4,73 x 5,42 + 2,58 x 4,73 + 4,73 x 2

Comments ( 2 )

  1. 4,73 × 5,42 + 2,58 × 4,73 + 4,73 × 2
    = 4,73×(5,42+2,58+2)
    = 4,73×10
    = 47,3
     

  2. 4,73 × 5,42 + 2,58 × 4,73 + 4,73 × 2
    = 4,73 × ( 5,42 + 2,58 + 2 )
    = 4,73 × 10
    = 47,3

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