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

Toán Lớp 6: 1Tính: a 2/3+3/51 b 4/7-11/42 c 2 1/3×3 1/2 d 4 1/3 :2 1/3 2Tính: a 3/5×2/7:4/9

Home/ Toán Lớp 6: 1Tính: a 2/3+3/51 b 4/7-11/42 c 2 1/3×3 1/2 d 4 1/3 :2 1/3 2Tính: a 3/5×2/7:4/9

Toán Lớp 6: 1Tính: a 2/3+3/51 b 4/7-11/42 c 2 1/3×3 1/2 d 4 1/3 :2 1/3 2Tính: a 3/5×2/7:4/9

Tháng Chín 2, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: 1Tính:
a 2/3+3/51 b 4/7-11/42 c 2 1/3×3 1/2 d 4 1/3 :2 1/3
2Tính:
a 3/5×2/7:4/9 b 2/11:1/3×3/2 c 5/2×1/3+1/4 d 1/2+1/4:1/6
3Tính Nhanh:
a) 64.25+35.25+25
b) 58.42+32.8+5.16

Comments ( 2 )

  1. tuyetnhungthu
    tuyetnhungthu
    2 Tháng Chín, 2022 at 6:57 chiều
    Reply
    1Tính:
    a 2/3 + 3/51 = 34/51 + 3/51 = 37/51
    b 4/7 – 11/42 = 24/42 – 11/42 = 13/42
    c 2 1/3 xx 3 1/2 = 7/3 xx 7/2 = 49/6
    d 4 1/3 : 2 1/3 = 13/3 : 7/3 = 13/7
    2Tính:
    a 3/5 xx 2/7 : 4/9 = 6/35 : 4/9 = 27/70
    b 2/11 : 1/3 xx 3/2 = 6/11 xx 3/2 = 18/22
    c 5/2 xx 1/3 + 1/4 = 5/6 + 1/4 = 37/12
    d 1/2 + 1/4 : 1/6 = 1/2 + 3/2 = 4/2 = 2
    $3 Tính$ $nhanh:$
    $64.25+35.25+25$
    $= 64.25+35.25+25.1$
    $=25.(64+35+1)$
    $=25.100$
    $=2500$
    b)
    $58.42+32.8+5.16$
    $=58.42+32.8+5.2.8$
    $=58.42+32.8+10.8$
    $=58.42+(32+10).8$
    $=58.42+42.8$ $=42(58+8)$
    $=42.66=2772$

  2. hothaibinh
    hothaibinh
    2 Tháng Chín, 2022 at 6:57 chiều
    Reply
    Bài 1
    a ) 2/3 + 3/51 = 34/51 + 3/51 = 37/51
    b ) 4/7 – 11/42 = 24/42 – 11/42 = 13/42
    c ) 2 1/3 × 3 1/2 = 7/3 × 7/2 = 49/6
    d ) 4 1/3 : 2 1/3 = 13/3 : 7/3 = 13/3 × 3/7 = 13/7
    Bài 2
    a ) 3/5 × 2/7 : 4/9 = 6/35 × 9/4 = 54/140
    b ) 2/11 : 1/3 × 3/2 = 2/11 × 3 × 3/2 = 6/11 × 3/2 = 18/22
    c ) 5/2 × 1/3 + 1/4 = 5/6 + 1/4 = 10/12 + 3/12 = 13/12
    d ) 1/2 + 1/4 : 1/6 = 1/2 + 1/4 × 6 = 1/2 + 6/4 = 2/4 + 6/4 = 8/4
    Bài 3
    a ) 64 . 25 + 35 . 25 + 25 = 25 . ( 64 + 35 + 1 ) = 25 . 100 = 2500
    b ) 58 . 42 + 32 . 8 + 5 . 16 = 16 × 152,25 + 16 × 16 + 5 × 16 = 16 × ( 152,25 + 16 + 5 ) = 16 × 173,25 = 2772
    #dtkc
     

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

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