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

Toán Lớp 6: a) (-124) + 24​​​​ b) 37. 78 + 37. 22 c) 198 – (– 60 – 302)​ ​​d) 52 + 200: ( 2 + 23)

Toán Lớp 6: a) (-124) + 24​​​​
b) 37. 78 + 37. 22
c) 198 – (– 60 – 302)​
​​d) 52 + 200: ( 2 + 23)

Comments ( 2 )

  1. a) (-124) + 24 = -100
    b) 37 . 78 + 37 . 22
    = 37 . (78 + 22)
    = 37 . 100
    = 3700
    c) 198 – (-60 – 302)
    = 198 + 60 + 302
    = (198 + 302) + 60
    = 500 + 60
    = 560
    d) 52 + 200 : (2 + 23)
    = 52 + 200 : 25
    = 52 + 8
    = 60
     

  2. Giải đáp:
     $a) (-124)+24$
    $= 24-124$
    $= -100$
    $b) 37.78+37.22$
    $= 37.(78+22)$
    $= 37.100$
    $=3700$
    $c) 198-(-60-302)$
    $= 198+60+302$
    $= (198+302)+60$
    $= 500+60$
    $=560$
    $d) 52+200:(2+23)$
    $= 52+200:25$
    $= 52+8$
    $= 60$
     

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

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