1/ 15.(-176)+15.76+100.15 2/ 79.89-79.(-11)-100.79 3/ 153.177-153.77+100.(-77) 4/(-29).(85-47)-85.(47-29) 5/ (-167).(67-34)-6

1/ 15.(-176)+15.76+100.15
2/ 79.89-79.(-11)-100.79
3/ 153.177-153.77+100.(-77)
4/(-29).(85-47)-85.(47-29)
5/ (-167).(67-34)-67.(34-167)
Tính hợp lý nha mn !

2 bình luận về “1/ 15.(-176)+15.76+100.15 2/ 79.89-79.(-11)-100.79 3/ 153.177-153.77+100.(-77) 4/(-29).(85-47)-85.(47-29) 5/ (-167).(67-34)-6”

  1. 1/ 15.(-176)+15.76+100.15
    =15.(-176+76+100)
    =15.(-100+100)
    =15.0
    =0.
    2/ 79.89-79.(-11)-100.79
    = 79.(89+11-100)
    = 79  .  0
    =     0
    3/ 153.177-153.77+100.(-77)
    =153.(177-77)+100.(-77)
    =153.  100      +100 .(-77)
    =100.(153-77)
    =100.76
    =7600
    4/(-29).(85-47)-85.(47-29)
    =-29.85+29.47 – 85.47+85.29
    =(-29.85+85.29)+(29.47 – 85.47)
    =0+47.(29 – 85)
    =47.(-56)
    =-2632.
    5/ (-167).(67-34)-67.(34-167)
    =-167.67+167.34 – 67.34+67.167
    =167.34-67.34
    =34.(167-67)
    =34.100
    =3400
     

    Trả lời
  2. 1)15.(-176)+15.76+100.15=15.(-176+76+100)=15.0=0
    2)79.89-79.(-11)-100.79=79.(89+11-100)=79.0=0
    3/ 153.177-153.77+100.(-77)=153.(177-77)+100.(-77)=153.100+100 .(-77)=100.(153-77)=100.76=7600
    4/(-29).(85-47)-85.(47-29)=-29.85+29.47 – 85.47+85.29=(-29.85+85.29)+(29.47 – 85.47)=0+47.(29 – 85)=47.(-56)=-2632.
    5/ (-167).(67-34)-67.(34-167)=-167.67+167.34 – 67.34+67.167=167.34-67.34=34.(167-67)=34.100=3400

    Trả lời

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