Mastering Addition and Subtraction
Mastering Addition and Subtraction
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Mastering Addition and Subtraction
What do you already know about adding and subtracting numbers?
Learning Objective
At the end of the lesson you will be able to solve addition and subtraction problems using a variety of strategies.
What is Addition?
Example
3 + 2 = 5 means combining 3 and 2 gives 5.
Addition is combining two or more numbers to find their total or sum.
Definition
What is Subtraction?
Example
Subtraction is taking one number away from another to find what remains.
Definition
7 - 4 = 3 means taking 4 away from 7 leaves 3.
Addition in Real Life
We use addition when working out how much money we have, or when counting objects together.
Subtraction in Real Life
Subtraction helps us work out how many are left, like when we eat apples from a basket.
Using a Number Line
Practice Time!
Try solving 6 + 3 and 10 - 4. Can you find the answers?
Key Takeaways
Addition finds sums, subtraction finds the difference. We use both in everyday situations. Practise to become confident!
Write down 3 things you learned in this lesson.
Write down 2 things you want to know more about.
Ask 1 question about something you haven't quite understood yet.
