Shapes
2 - 1 =
1
I am a number that comes after 14.
What is 15?
4 - 2 =
2
I am a number that comes before 19.
What is 18.
5 - 1 =
4
I am a number that comes after 39.
What is 40?
6 - 2 =
4
I am a number that comes before one.
What is 0?
10 - 3 =
I am a number that comes after 99.
What is 100?