shapes
10 + 2 =
What is 12?
13 + 2 =
What is 15?
9 + 3 =
What is 12?
The number that comes after 0.
What is 1?
10 + 11 =
What is 21?
The number that comes before 40.
What is 39?
100 + 100 =
What is 200?
The number that comes after 100.
What is 101?