Question

Answer 1

`@Neo`

`a)45,16+32,25−25,16+(−22,25)`

`=>45,16+32,25−25,16−22,25`

`=>(45,16−25,16)+(32,25−22,25)`

`=>20+10=>30`

`b)(−930,34)−(69,66−235,4)`

`=>−930,34−69,66+235,4`

`=>`\( ( − 930 , 34 − 69 , 66 ) + 235 , 4\)

`=>`\(− 1000 + 235 , 4\)`=>`\( − 764 , 6\)

Answer 2

`a)45,16+32,25-25,16+(-22,25)`

`=45,16+32,25-25,16-22,25`

`=(45,16-25,16)+(32,25-22,25)=20+10=30`

`b)(-930,34)-(69,66-235,4)`

`=-930,34-69,66+235,4`

`=-(930,34+69,66)+235,4=-1000+235,4=-764,6`

Answer 3

a: =45,16-25,16+32,25-22,25

=20+10=30

b: =-930,34-69,66+235,4

=-1000+235,4=-764,4

Answer 4

a. [32,25 + (-22,25)] + [ 45,16 - 25,16]

= 10 + 20

= 30

b. (- 930,24) - ( -165,74)

= -764,5