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

Toán Lớp 5: 1.tính nhanh 1 0,7+95+1,4×2+0,7

Toán Lớp 5: 1.tính nhanh
1
0,7+95+1,4×2+0,7

Comments ( 2 )

  1.    0,7+95+1,4×2+0,7

    = 0,7×95+0,7×2×2+0,7×1

    = 0,7 x (95+2+2+1)

    = 0,7 x 100

    = 70

    Gửi bạn

  2.    0,7 + 95 + 1,4 × 2 + 0,7

    = 0,7× 95 + 0,7×2×2 + 0,7×1

    = 0,7 × (95+4+1)

    = 0,7 × 100

    = 70

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

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