⬜−(−3)−(−10)=−40 ⬜-(-3)-(-10)=-40 ⬜−(−3)−(−10)=−40Fill in the blank.
First let's remember the rule:
−(−x)=+ -(-x)=+ −(−x)=+
Now let's rewrite the exercise like so:
?+3+10=−40 ?+3+10=-40 ?+3+10=−40
?+13=−40 ?+13=-40 ?+13=−40
Then we can add -13 to both sides to cancel out the left side:
?+13−13=−40−13 ?+13-13=-40-13 ?+13−13=−40−13
Finally, we obtain:
?+0=−53 ?+0=-53 ?+0=−53
?=−53 ?=-53 ?=−53
−53 -53 −53