Solve the Multiplication Equation: (-2) × ? = -4

Fill in the missing number:

(−2)⋅?=−4 (-2)\cdot?=-4

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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 First we'll find the sign of the unknown
00:10 Negative times positive is always negative
00:14 Therefore the unknown is positive
00:22 Find the unknown
00:35 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Fill in the missing number:

(−2)⋅?=−4 (-2)\cdot?=-4

2

Step-by-step solution

Remember the following law:

(−x)×(+x)=−x (-x)\times(+x)=-x

Let's think about which number we need to multiply by 2 to get 4:

2×2=4 2\times2=4

Now let's put the numbers together with the appropriate sign as written in the law above as follows:

−2×(+2)=−4 -2\times(+2)=-4

3

Final Answer

2 2

Practice Quiz

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What will be the sign of the result of the next exercise?

\( (-2)\cdot(-4)= \)

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