Question

Exsplain how to use a number line to show that opposite quantities combine to make 0.

Answer 1

1. Add a positive number to a number by counting up from that number, and add a negative number to a.
2. number by counting down from that number.
3. An integer plus its opposite sum to zero.
4. The opposite of a number is called the additive inverse because the two numbers' sum is zero.