Answer:
From -10 to 10 there are 20 numbers.
Step-by-step explanation:
When you are trying to determine this kind of question, you start counting backward from -10. So it would be -10, -9, -8, -6, -5, -4, -3, -2, -1, and 0. When you get to 0, you start counting forward. So it would be 1, 2, 3, 4, 5, 6, 7,8,9, and 10. So when you count all of them together that would give you the number 20.
