(+567)−(−69)= (+567)-(-69)= (+567)−(−69)=
Let's remember the rule:
−(−x)=+x -(-x)=+x −(−x)=+x
Now let's write the exercise in the appropriate form:
567+69= 567+69= 567+69=
Let's solve the exercise vertically:
567+69636 567\\+69\\636 567+69636
636 636 636