Step by step
The question
Question: what goes with 2 to make 10?
What goes with 2 to make 10?
In numbers: 2 plus what number is 10?
The box is the number we want.
2 + □ = 10
1 Show 2
A ten frame has 10 boxes.
2 Fill the empty boxes
How many boxes are empty?
We fill them with blue dots.
We count them.
3 Write the number
8 blue dots fill the frame.
So 2 and 8 make 10.
2 + 8 = 10
4 Check
We count all the dots.
We start at 2 and count on.
3, 4, 5, 6, 7, 8, 9, 10.
Yes!
It works.
2, 3, 4, 5, 6, 7, 8, 9, 10
Let's look back.
First: show 2.
Then: fill the empty boxes.
Then: write the number.
Last: check.
Answer
2 + 8 = 10