Solve: ⬜-(-3)-(-10)=-40 | Fill in the Missing Value

⬜−(−3)−(−10)=−40 ⬜-(-3)-(-10)=-40

Fill in the blank.

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find the unknown
00:04 Negative times negative always equals positive
00:09 Open parentheses
00:14 Calculate the operation
00:20 Isolate the unknown
00:36 Calculate each operation separately
00:48 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

⬜−(−3)−(−10)=−40 ⬜-(-3)-(-10)=-40

Fill in the blank.

2

Step-by-step solution

First let's remember the rule:

−(−x)=+ -(-x)=+

Now let's rewrite the exercise like so:

?+3+10=−40 ?+3+10=-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

Finally, we obtain:

?+0=−53 ?+0=-53

?=−53 ?=-53

3

Final Answer

−53 -53

Practice Quiz

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a is negative number.

b is negative number.

What is the sum of a+b?

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