2575+37-2576-29 34+35+336+37-14-15-16-17 4573+46-4573+35-16-5 32+34+36+38-10-12-14-16-18

`2575 + 37 – 2576 – 29`

`= ( 2575 – 2576) + (37 -29)`

`= -1 + 8 `

`= 7`

`34 + 35 + 36 + 37 – 14 – 15 – 16 – 17`

`= ( 34 – 14 ) + ( 35 – 15 ) + ( 36 – 16 ) + ( 37 – 17 )`

`= 20 + 20 + 20 + 20`

`= 20.4 `

`= 80`

`4573 + 46 – 4573 + 35  16 – 5`

`= ( 4573 – 4573 ) + ( 46 -16 ) + ( 35 – 5 )`

`= 0 + 30 + 30`

`=60`

`32 + 34 + 36 + 38 – 10 – 12 – 14 – 16 – 18`

`= ( 32 – 12 ) + ( 34 – 14 ) + ( 36 – 16 ) + ( 38 – 18 ) – 10`

`= 20 + 20 + 20 + 20 – 10`

`= 20.4 – 10`

`= 80 – 10 `

` = 70 `