Across
- 3. the answer to a subtraction problem
- 5. adding parts of a number to find the total
- 7. a group of ten ones
- 9. to change the grouping of numbers
Down
- 1. to put numbers together to form a number
- 2. a way to make numbers easier to add or subtract by adjusting one number
- 4. Answer to an addition problem
- 6. a number added to another.
- 8. To break a number into parts