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

Toán Lớp 6: Bài 8. Bỏ ngoặc và tính: 1) (-5)-(-18)-(-9)-(+3) 5) -11-(-15)-(-13)-(-9)-(-5) 2) (-4)-(-8)-(-15)+(-10) 6) -(-4)-(-12)-(+5)+19 3) -(+7)-

Toán Lớp 6: Bài 8. Bỏ ngoặc và tính:
1) (-5)-(-18)-(-9)-(+3)
5) -11-(-15)-(-13)-(-9)-(-5)
2) (-4)-(-8)-(-15)+(-10)
6) -(-4)-(-12)-(+5)+19
3) -(+7)-(-12)-(-9)+(+10)
7) -(28-30+4)
4) 16-(-3)+(-5)-(+7)+12
8) 13-(17–15-3)+(4+8-9)

Comments ( 1 )

  1. 1,  (-5)-(-18)-(-9)-(+3)
    =-5+18+9-3
    =19
    5, -11-(-15)-(-13) -(-9)-(-5)
    =-11+15+13+9+5
    =31
    2, (-4)-(-8)-(-15)+(-10)
    =-4+8+15 – 10
    =9
    6, -(-4)-(-12)-(-9)+(+10)
    =4+12+9+10
    =35
    3, -(+7)-(-12)-(-9) +(+10)
    = -7 +12 +9 +10
    =24
    7, -(28-30+4)
    =-28+30-4
    =-2
    4, 16-(-3) +(-5)-(+7)+12
    = 16+3-5-7 +12
    =19
    8, 13-(17-15-3)+(4+8-9)
    =13-17+16+3+4+8-9
    =18
    Chúc bn hc tốt

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