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

Toán Lớp 6: BCNN(20,140,35)=? A.20 B.140 C.35 D.5

Toán Lớp 6: BCNN(20,140,35)=?
A.20
B.140
C.35
D.5

Comments ( 2 )

  1. BCNN(20,140,35)=?
    A. 20
    B. 140
    C. 35
    D. 5

  2. ta có:
    20=2².5
    140=2².5.7
    35=5.7
    BCNN(20,140,35)=2².5.7=140
    hay
    vì số 140 chia hết cho 20 và 35 nên
    BCNN(20,140,35)=140
    vậy ta chọn B.140

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

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