1/ 4567+(1234-4567)-4 2/ 2001-(53+1579)-(-4) 3/ 35-17+2017-35+(-2017) 4/ -(-219+(-219)-401+12 5/-|-85|-(-3).15

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1. `1)4567+(1234-4567)-4`

   `=4567+1234-4567-4`

   `=(4567-4567)+(1234-4)`

   `=1230`

   `2)2001-(53+1579)-(-4)`

   `=2001-53-1579+4`

   `=1948-1579+4`

   `=373`

   `3)35-17+2017-35+(-2017)`

   `=35-17+2017-35-2017`

   `=(35-35)+(2017-2017)-17`

   `=-17`

   `4)-(-219+(-219)-401+12)`

   `=219+219+401-12`

   `=438+401-12`

   `=839-12`

   `=827`

   `5)-|-85|-(-3).15`

   `=-85+3.15`

   `=-85+45`

   `=-40`

    

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2. 1) 4567+(1234-4567)-4

   = 4567 + 1234 – 4567 – 4

   = 1230

   2) 2001-(53+1579)-(-4)

   = 2001 – 53 – 1579 + 4

   = 373

   3) 35-17+2017-35+(-2017)

   = 35 – 17 + 2017 – 35 – 2017

   = -17

   4) -(-219)+(-219)-401+12

   = 219 – 219 – 401 + 12

   = -389

   5) -|-85|-(-3).15

   = -85 + 3 . 15

   = -85 + 45

   = -40

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