Across
- 3. How many tens does regrouping of 10 ones give ?
- 5. Rearranging the numbers.
- 7. When we subtract, we use this to find how much is left.
- 8. We can check subtraction using.
- 9. Changing the order of numbers while adding what will not change.
Down
- 1. We compare two numbers to find how many more or how many less than the other by
- 2. The number that makes the sum unchanged.
- 4. Numbers in this place must be added first.
- 6. The sum does not change even if the order of this is changed.
- 7. The number from which we subtract is