How many integers are located on the coordinate line between the numbers (-3) and 8?

If you place the numbers on the coordinate line, then you can find out how many numbers are between the numbers X and Y. We are given the numbers -3 and 8, then in our answer we do not include these numbers, since this is the interval (-3, 8). To find the number of numbers between them, we use 2 methods:
1) You can list all integers: -2, -1, 0, 1, 2, 3, 4, 5, 6, 7. Let’s count: 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 10 numbers.
2) We need to take the value that will give us 0: -3 + 3 = 0, 8-8 = 0. -3 and 8 are not taken into account, and 0 is included: 7 + 2 + 1 = 10 numbers.