a) 180 − (32. 42 − 5.16) b) 20130 − {152:[175 + (23. 52 − 6.25)]} c) 389 + [154 + (−389) + (−54)] MIK CẦN GẤP

a) 180 − (32. 42 − 5.16)
b) 20130 − {152:[175 + (23. 52 − 6.25)]}
c) 389 + [154 + (−389) + (−54)]
MIK CẦN GẤP

0 bình luận về “a) 180 − (32. 42 − 5.16) b) 20130 − {152:[175 + (23. 52 − 6.25)]} c) 389 + [154 + (−389) + (−54)] MIK CẦN GẤP”

  1. a) 180 − (32. 42 − 5.16)

    = 180 − (1344 – 80)

    = 180 – 1264

    =(-1084)

    b) 20130 − {152:[175 + (23. 52 − 6.25)]}

    =20130 − {152:[175 + (1196 − 150)]}

    =20130 − {152:[175 +1046]}

    =20130 − {152:1221}

    =20130-0.12

    =20129,88

    c) 389 + [154 + (−389) + (−54)]

    =389 + [154 + (-443)]

    =389+(-289)

    =100

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