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

Toán Lớp 5: Bài 5: Tìm X: a) X + 34,5=87,6 x 6 b) X – 28,79 = 43,28 + 13,46 c) 97,5 – X = 42,3 x 2

Tháng Một 18, 2023 Toán học 2 Comments 0 views

Toán Lớp 5: Bài 5: Tìm X:
a) X + 34,5=87,6 x 6 b) X – 28,79 = 43,28 + 13,46
c) 97,5 – X = 42,3 x 2 d) 87,65 – X = 58 – 37,53

Comments ( 2 )

  1. quynhthanhnhu
    quynhthanhnhu
    18 Tháng Một, 2023 at 2:20 sáng
    Reply
    $\text{a) x+34,5=87,6×6}$
    $\text{x+34,5=525,6}$
    $\text{x=525,6-34,5}$
    $\text{x=491,1}$
    __________________________________
    $\text{b) x-28,79=43,28+13,46}$
    $\text{x-28,79=56,74}$
    $\text{x=56,74+28,79}$
    $\text{x=85,53}$
    __________________________________
    $\text{c) 97,5-x=42,3×2}$
    $\text{97,5-x=84,6}$
    $\text{x=97,5-84,6}$
    $\text{x=12,9}$
    __________________________________
    $\text{d) 87,65-x=58-37,53}$
    $\text{87,65-x=20,47}$
    $\text{x=87,65-20,47}$
    $\text{x=67,18}$
    $\text{#mct}$

  2. maianhtuanh
    maianhtuanh
    18 Tháng Một, 2023 at 2:20 sáng
    Reply
    a,X+34,5=87,6×6
    X+34,5=525,6
    X=525,6-34,5=491.1
    b,X-28,79=56,74
    X=56,74+28,79=85,53
    c,97,5-x=84,6
    x=97,5-84,6=12,9
    d,87,65-X=20,47
    X=87,65-20,47=67,18
    mik xin ctlhn ạ
     

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

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