Solve the Addition Equation: Finding the Missing Number in -3 + ? = 5

−3+(?)=5 -3+(?)=5 -5-5-5-4-4-4-3-3-3-2-2-2-1-1-1000111222333444555

❤️ Continue Your Math Journey!

We have hundreds of course questions with personalized recommendations + Account 100% premium

Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Complete the missing part
00:03 The number is directed and negative
00:09 The negative direction on the axis is left, so we'll take 3 to the left
00:15 This is the desired number, let's find it on the axis
00:26 Let's find its distance from point (-3)
00:36 The direction of progress is to the right (positive)
00:45 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

−3+(?)=5 -3+(?)=5 -5-5-5-4-4-4-3-3-3-2-2-2-1-1-1000111222333444555

2

Step-by-step solution

To find out how much we need to add to the number negative 3 in order to get 5, we will count the number of steps between the two numbers.

Also, we will pay attention to which direction we moved, if we moved to the right then the number is positive, if we moved to the left the number will be negative.

We will start from the number negative 3, and move to the right until we reach the number 5, with each step representing one whole number, as follows:

-5-5-5-4-4-4-3-3-3-2-2-2-1-1-1000111222333444555

We discover that the number of steps is 8. Since we moved to the right, the number is positive

3

Final Answer

8 8

Practice Quiz

Test your knowledge with interactive questions

a is negative number.

b is negative number.

What is the sum of a+b?

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Signed Numbers (Positive and Negative) questions, detailed video solutions, and personalized progress tracking.

📹

Unlimited Video Solutions

Step-by-step explanations for every problem

📊

Progress Analytics

Track your mastery across all topics

🚫

Ad-Free Learning

Focus on math without distractions

No credit card required • Cancel anytime

More Questions

Click on any question to see the complete solution with step-by-step explanations

Addition and Subtraction of Directed Numbers

Solve the Equation: Finding the Missing Number in 9 + (?) = -1
Click to solve
Solve the Addition Equation: Finding the Missing Number in -6 + ? = 4
Click to solve