7 + 7
A double is when we add a number to itself. Let's figure out seven plus seven.
Here's a number line from zero all the way to twenty.
First we jump seven. We land on seven.
Now jump seven more. We land on fourteen.
We can write that as seven plus seven.
Equals fourteen!
These are the bigger doubles. Try to remember them by heart.
Seven plus seven is fourteen. Practice these doubles every day — they'll come quick!