Calculate 3 × (-4): Multiplying a Positive and Negative Integer

Complete the following exercise:

3⋅(−4)= 3\cdot(-4)=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:06 Let's learn how to solve this problem.
00:13 Remember, a negative number, times a positive number, gives a negative result.
00:18 And that's how we find the solution to the question.

Step-by-step written solution

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1

Understand the problem

Complete the following exercise:

3⋅(−4)= 3\cdot(-4)=

2

Step-by-step solution

Let's remember the rule:

(+x)×(−x)=−x (+x)\times(-x)=-x

Therefore, the sign of the exercise result will be negative:

+3×−4=−12 +3\times-4=-12

3

Final Answer

−12 -12

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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