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

Toán Lớp 7: bài 11 (5/3 – 3/7+ 9 ) – ( 2 + 5/7-2/3 ) + ( 8/7 – 4/3 – 10 ) bài 12 ( 8 – 9/4 + 2/7 ) – (-6 -3/7 + 5/4 ) – ( 3 + 2/4 – 9/7 )

Home/ Toán Lớp 7: bài 11 (5/3 – 3/7+ 9 ) – ( 2 + 5/7-2/3 ) + ( 8/7 – 4/3 – 10 ) bài 12 ( 8 – 9/4 + 2/7 ) – (-6 -3/7 + 5/4 ) – ( 3 + 2/4 – 9/7 )

Toán Lớp 7: bài 11 (5/3 – 3/7+ 9 ) – ( 2 + 5/7-2/3 ) + ( 8/7 – 4/3 – 10 ) bài 12 ( 8 – 9/4 + 2/7 ) – (-6 -3/7 + 5/4 ) – ( 3 + 2/4 – 9/7 )

Tháng Mười Một 3, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: bài 11 (5/3 – 3/7+ 9 ) – ( 2 + 5/7-2/3 ) + ( 8/7 – 4/3 – 10 )
bài 12 ( 8 – 9/4 + 2/7 ) – (-6 -3/7 + 5/4 ) – ( 3 + 2/4 – 9/7 )

Comments ( 2 )

  1. giangnguyen33
    giangnguyen33
    3 Tháng Mười Một, 2022 at 6:31 chiều
    Reply
    Bài 11:
    (5/3-3/7+9)-(2+5/7-2/3)+(8/7-4/3-10)
    =5/3-3/7+9-2-5/7+2/3+8/7-4/3-10
    =(5/3+2/3-4/3)+(-3/7-5/7+8/7)+(9-2-10)
    =1+0-3
    =-2
    Bài 12:
    (8-9/4+2/7)-(-6-3/7+5/4)-(3+2/4-9/7)
    =8-9/4+2/7+6+3/7-5/4-3-2/4+9/7
    =(-9/4-5/4-2/4)+(2/7+3/7+9/7)+(8+6-3)
    =-4+2+11
    =9

  2. dantam45
    dantam45
    3 Tháng Mười Một, 2022 at 6:30 chiều
    Reply
    ~ Bạn tham khảo ~
    Bài 1 :
    (5/3 – 3/7+ 9 ) – ( 2 + 5/7-2/3 ) + ( 8/7 – 4/3 – 10 )
    = 5/3 – 3/7+ 9 – 2 – 5/7+2/3 + 8/7 – 4/3 – 10
    = (5/3 + 2/3 – 4/3) – (3/7 + 5/7 – 8/7) + (9-2-10)
    = 1 – 0 – 3
    = -2
    Bài 2 :
    ( 8 – 9/4 + 2/7 ) – (-6 -3/7 + 5/4 ) – ( 3 + 2/4 – 9/7 )
    =8 – 9/4 + 2/7 + 6 + 3/7 – 5/4 – 3 – 2/4 + 9/7
    = (-9/4 – 5/4 – 2/4) + (2/7 + 3/7 + 9/7) + (8 + 6 – 3)
    = -4 + 2 + 11
    = 9

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

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