Vocabulary crossword puzzle

4. Same number different sign, their sum would be zero.
9. Numbers used when counting objects, 1, 2, 3, 4,...., always positive and starting at 1.
10. Multiply by 1 and get the same number (similar to additive identity number doesn't change)
12. Center of the number like, evenly counted on both sides, positive and negative numbers.
15. Adding numbers in any order, Order of addition doesn't matter.
16. Numbers that are the same distance away from zero on opposite sides of zero, one is positive and one is negative.
18. What you are counting by on the number line, evenly spaced.
19. Amount of space between two numbers.
20. Counting numbers but starting at 0, 0, 1, 2, 3, 4,....

1. Adding zero to a number, doesn't change the number/answer.
2. Set of rules or method on how to do a problem.
3. Numbers to the right of zero, greater than zero.
5. A way to represent locations of numbers, comparing numbers, visualization of numbers.
6. The distance a number is from zero, distance is always positive, symbol | |, means make any number inside positive, if already positive it doesn't do anything.
7. Point or number that is equally distance to both original numbers.
8. Decimal numbers that do not repeat or terminate, radicals.
11. A way to compare two numbers that are not equal, which number is farther from zero, one is positive and one is negative.
13. Numbers to the left of zero, less than zero.
14. Integers, fractions, decimals that either terminate or repeat.
17. Positive and negative whole numbers..., -3, -2, -1, 0, 1, 2, 3,....