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

Toán Lớp 4: 7.tính thuận tiện 120×4+120×5+120

Toán Lớp 4: 7.tính thuận tiện
120×4+120×5+120

Comments ( 2 )

  1. 120×4+120×5+120
    = 120 x ( 4 + 5 + 1 )
    = 120 x 10
    = 1200
     

  2. 7.tính thuận tiện
    120 x 4 + 120 × 5 + 120
    = 120 x 4 + 120 x 5 + 120 x 1
    = 120 x ( 4 + 5 + 1 )
    = 120 x10
    = 1200
    #TNT
     

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