Mathematics, 31.01.2021 22:30, jasonkindred21

When adding rational numbers with the same sign, you must: 1. Keep, change, switch.

2. Add together and keep the sign.

3. Subtract and keep the sign of the biggest number.

4. Add the opposite.

Answers: 1

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When adding rational numbers with the same sign, you must: 1. Keep, change, switch.

2....