Year 1
Maths
Number and Algebra
AC9M1N04
Doubles
Discover how doubling a number means adding it to itself.
What You Need to Know
Discover how doubling a number means adding it to itself.
Key Concept Diagram
A double is when you add a number to itself
Double 1 is 2, double 2 is 4, double 3 is 6
Doubling makes a bigger number
Doubles facts help us add quickly
Key Vocabulary
double
add a number to itself to get the answer
twice
two times as many
equal groups
groups that have the same amount
fact
a maths truth we can remember
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
What is double 3?
Question 2
Which is a doubles fact?
Question 3
Tom has 5 stickers. His friend has the same. How many altogether?
Key Concepts Summary
- ●A double is when you add a number to itself
- ●Double 1 is 2, double 2 is 4, double 3 is 6
- ●Doubling makes a bigger number
- ●Doubles facts help us add quickly