Math 7th

5. The same as ADDING the additive inverse (opposite).
9. (Reciprocal)Two numbers that multiply to make 1 are multiplicative inverses or reciprocals.
12. A number less than zero.
13. (opposites)Two numbers that are the same distance from 0 on the number line but in opposite directions and have a sum of zero.
14. Zero and all the natural (counting) numbers and their opposites.

1. The number one is the multiplicative identity for any rational number (n) because 1 times n equals n.
2. A number greater than zero.
3. The order of addition or multiplication of two numbers does not change the result.
4. For any real numbers an expression can be written as a factor multiplied by a sum or a sum of terms.
6. A number that can be written as a quotient of two integers where the denominator is not 0.
7. Zero is the additive identity for any rational number (n) because n plus zero equals n.
8. Two numbers whose sum is zero.
10. The positive distance from the number to zero on a number line.
11. A representation of numbers extending to infinity in both the positive and negative directions.