Addition Subtraction

3. the distance between two numbers; the result of subtracting one number from another
4. the value of a digit that depends on its location within a number
8. math processes, such as addition, subtraction, multiplication, and division
10. the total amount; the result in addition
13. a reasonable guess that is close to the exact answer
14. a plan or way of solving a problem or finding an answer
17. states that numbers can be added in any order and the sum will be the same*
19. finding a number that is close to the original number by changing it to the closest multiple of 10, 100, 1,000, etc.
21. taking away an amount from a larger amount; finding the difference between two numbers
23. a line with evenly spaced tick marks to show the position of a number in relation to other numbers
24. numbers added together in a problem

1. a product of two numbers; a number that can be divided evenly by another number
2. to show in some way; to stand for something
5. numbers that are close to the original value and make a problem easier to solve mentally
6. states that numbers that are added can be grouped in any order and the sum will be the same*
7. put together
9. to find an answer or solution to a problem
11. to decrease
12. a model used to solve word problems that shows the relationship between known and unknown amounts
15. a plan or way of solving a problem or finding an answer
16. to increase
18. combining two or more numbers to get a sum, or total
20. how many there are all in all
22. a missing piece of information