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

Toán Lớp 7: A/-2,7 – 1,5 B/8,03 + 5,14 C/(5,1) ×(-2,9) D/(-13,5):21 Làm giúp mình nhaa

Toán Lớp 7: A/-2,7 – 1,5
B/8,03 + 5,14
C/(5,1) ×(-2,9)
D/(-13,5):21
Làm giúp mình nhaa

Comments ( 2 )

  1. #huy
    a)-2,7 – 1,5
    =27/10-15/10
    =6/5
    b)8,03 + 5,14
    =803/100+514/100
    =1317/1000
    c)(5,1) xx(-2,9)
    =51/10xx(-29)10
    =459/100
    d)(-13,5):21
    =(-135)/100:21
    =(-9)/140

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