Across
- 1. The way the factors are grouped does not affect the product
- 5. The absolute value of negative nine
- 6. The order of the factors does not changethe the product
- 7. Numbers to the left of zero
- 8. The first natural number
- 9. Is the neutral elements in the multiplication of natural numbers
Down
- 2. The next or succeding of ten
- 3. The orders of the addends does not change the sum
- 4. The fourth natural number
- 6. The number of elements of a set