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

Toán Lớp 5: Tính nhanh 0,2x317x7+0,14×3520+33,1×14

Toán Lớp 5: Tính nhanh
0,2x317x7+0,14×3520+33,1×14

Comments ( 2 )

  1. Giải đáp:
    0,2x317x7+0,14×3520+33,1×14
    =(0,2x317x7)+ (0,14×3520)+ (33,1×14)
    =1,4x 317+ 1,4x 352+ 331x 1,4
    = 1,4x (317+ 352+ 331)
    =1,4x 1000
    =1400
     

  2. @Kem
    0,2×317×7+0,14×3520+33,1×14
    = 1,4 × 317 + 1,4 × 352 + 331 × 1,4
    = 1,4 × ( 317 + 352 + 331)
    = 1,4 × 1000
    = 1400

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