Number (add/sub)
Hong Kong
Stage 1
Single digit addition and subtraction
Lesson
There are a range of strategies we can use to add or subtract single digit numbers such as
- number lines
- objects
- counting on
- compensation
This video talks through some of these strategies.
Worked Examples
Question 1
The image below shows one group of apples being added to another.
How many apples are there in total?
Question 2
What is $3+7$3+7?
Question 3
What is $7-1$7−1?