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

Toán Lớp 4: Bài 1: Tìm x x + 678 = 2813 4529 + x = 7685 x – 358 = 4768 2495 – x = 698 x × 23 = 3082 36 × x = 27612 x : 42 = 938 4080 : x = 24

Toán Lớp 4: Bài 1: Tìm x
x + 678 = 2813
4529 + x = 7685
x – 358 = 4768
2495 – x = 698
x × 23 = 3082
36 × x = 27612
x : 42 = 938
4080 : x = 24

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    a) x + 678 = 2813
    x = 2813 – 678
    x = 2135
    b) 4529 + x = 7685
    x = 7685 – 4529
    x = 3156
    c) x – 358 = 4768
    x = 4768 + 358
    x = 5126
    d) 2495 – x = 698
    x = 2495 – 698
    x = 1797
    e) x xx 23 = 3082
    x = 3082 : 23
    x = 134
    f) 36 xx x = 27612
    x = 27612 : 36
    x = 767
    g) x : 42 = 938
    x = 938 xx 42
    x = 39396
    h) 4080 : x = 24
    x = 4080 : 24
    x = 170

  2. x + 678 = 2813
    x = 2813 – 678
    x = 2135
    $\text{Vậy x = 2135}$
    4529 + x = 7685
    x = 7685 – 4529
    x = 3156
    $\text{Vậy x = 3156}$
    x – 358 = 4768
    x = 4768 + 358
    x = 5126
    $\text{Vậy x = 5126}$
    2495 – x = 698
    x = 2495 – 698
    x = 1797
    $\text{Vậy x = 1797}$
    x × 23 = 3082
    x = 3082 : 23
    x = 134
    $\text{Vậy x = 134}$
    36 × x = 27612
    x = 27612 : 36
    x = 767
    $\text{Vậy x = 767}$
    x : 42 = 938
    x = 938 × 42
    x = 39396
    $\text{Vậy x = 39396}$
    4080 : x = 24
    x = 4080 : 24
    x = 170
    $\text{Vậy x = 170}$

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

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