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

Toán Lớp 1: 8*5=12 8*4=10 8*3=8 8*2=4 8*1=?

Toán Lớp 1: 8*5=12
8*4=10
8*3=8
8*2=4
8*1=?

Comments ( 2 )

  1. 8 × 5 = 12
    8 × 4 = 10
    8 × 3 = 8
    8 × 2 = 6
    8 × 1 = ?
    → 8 × 1 = 6 – 2 = 4

  2. Ta có : 8.5=12
    8.4=10
    8.3=8
    8.2=6
    Mà ta thấy 12-2=10;10-8=2;8-6=2
    =>8.1=6-2=4
     

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

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