Introduction:
In this session, we are going to learn the subtraction of numbers using the help of addition facts.
Use addition to help you subtract.
8 – 6 =?
![Subract](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Subract.png)
6 + __ = 8
What can I add to 6 to make 8?
6, 7, 8
![6 to make 8](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/6-to-make-8.png)
6 + 2 = 8
The missing part is 2.
Think of addition fact to solve the subtraction equation.
So, 8- 6 = 2
Think Addition to Subtract:
Example 1:
Think of addition to help you subtract. Draw the missing part, then write the missing numbers.
![missing numbers](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-numbers.png)
Sol:
You can use addition to help you subtract.
![Subract](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Subract-1.png)
4 + ___ = 5
What can I add to make 4 to make 5?
4, 5
4 + 1 = 5
The missing part is 1.
![make 4 to make 5](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/make-4-to-make-5.png)
Think of the addition fact to solve the subtraction equation.
5 – 4 = 1
Example 2:
David has 8 crayons in a box. There are 5 crayons still in the box. How many crayons does he take out?
![5 crayons](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/5-crayons.jpg)
Sol:
David has crayons in a box = 8
Number of crayons still in the box = 5
How many crayons does he take out?
8 – ____ = 5
What additional facts can we use to solve this problem?
____ + ____ = _____
What can I add to 5 to make 8?
5, 6,7, 8
5 + 3 = 8
Think of the addition fact to solve the subtraction equation.
8 – 3 = 5
3 crayons he takes out.
Exercise
- Think of addition to help you subtract. Draw the missing part. Then write the missing numbers.
![Missing Numbers](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-Number-807x1024.png)
2. How can an addition fact help you to solve 5 – 4?
3. Which addition facts can help you solve 7 – 2?
Choose two that apply.
- 5 + 2 = 7
- 2 + 5 = 7
- 3 + 4 = 7
4. Write the missing numbers.
![Missing Numbers](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-numbers-1-1024x193.png)
5. Draw the missing part.
![missing part](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-part-1024x878.png)
6. Draw the missing part. Then write the missing numbers.
![Write the Missing Number](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Write-the-Missing-Numbers-1024x439.png)
7. Write the missing numbers.
![Missing Numbers](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-numbers-2-1024x195.png)
8. Vicky needs 6 tickets for a ride. He has 3 tickets. How many tickets do Vicky still need?
![Missing Part](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-part-4-1024x596.png)
9. A part is missing in the equations and model. Find the missing part.
![missing in the equations and model](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/missing-in-the-equations-and-model-671x1024.png)
10. Draw the missing part
![Missing Part](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Missing-Parts-1024x979.png)
Concept Map:
![Concept Map](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Concept-Map-5-1024x502.png)
What We Have Learned
- Use addition facts to solve subtraction problems
![Addition Facts to Subract](/_next/image?url=https%3A%2F%2Fwww.turito.com%2Flearn-internal%2Fwp-content%2Fuploads%2F2023%2F07%2FAddition-Facts-to-Subtract-1-1.png&w=1920&q=50)
Related topics
Addition and Multiplication Using Counters & Bar-Diagrams
Introduction: We can find the solution to the word problem by solving it. Here, in this topic, we can use 3 methods to find the solution. 1. Add using counters 2. Use factors to get the product 3. Write equations to find the unknown. Addition Equation: 8+8+8 =? Multiplication equation: 3×8=? Example 1: Andrew has […]
Read More >>Dilation: Definitions, Characteristics, and Similarities
Understanding Dilation A dilation is a transformation that produces an image that is of the same shape and different sizes. Dilation that creates a larger image is called enlargement. Describing Dilation Dilation of Scale Factor 2 The following figure undergoes a dilation with a scale factor of 2 giving an image A’ (2, 4), B’ […]
Read More >>How to Write and Interpret Numerical Expressions?
Write numerical expressions What is the Meaning of Numerical Expression? A numerical expression is a combination of numbers and integers using basic operations such as addition, subtraction, multiplication, or division. The word PEMDAS stands for: P → Parentheses E → Exponents M → Multiplication D → Division A → Addition S → Subtraction Some examples […]
Read More >>System of Linear Inequalities and Equations
Introduction: Systems of Linear Inequalities: A system of linear inequalities is a set of two or more linear inequalities in the same variables. The following example illustrates this, y < x + 2…………..Inequality 1 y ≥ 2x − 1…………Inequality 2 Solution of a System of Linear Inequalities: A solution of a system of linear inequalities […]
Read More >>Other topics
![demo](https://a.storyblok.com/f/128066/544x376/641160f2e6/learn_toast.webp)
Comments: