(−10)−(+13)= (-10)-(+13)= (−10)−(+13)=
Let's locate -10 on the number line and move 13 steps to the left.
Let's note that our result is a negative number:
000-10-10-10-13
Let's remember the rule:
−(+x)=−x -(+x)=-x −(+x)=−x
Now let's write the exercise in the appropriate form and solve it:
−10−13=−23 -10-13=-23 −10−13=−23
−23 -23 −23