Step by step
The question
Question: 10 = 5 + □.
What number goes in the box?
10 = 5 + □
1 Show 5
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
5 blue dots fill the frame.
So 5 and 5 make 10.
10 = 5 + 5
4 Check
We count all the dots.
We start at 5 and count on.
6, 7, 8, 9, 10.
Yes!
It works.
5, 6, 7, 8, 9, 10
Let's look back.
First: show 5.
Then: fill the empty boxes.
Then: write the number.
Last: check.
Answer
10 = 5 + 5