Answer:
1.) -7 + 10 = 3 (Different signs, so you subtract and keep the sign of the bigger number).
2.) -30 - 15 = -45 (same sign, so you just add and keep the same sign)
3.) 65 - 90 = -25 (Different signs, so you subtract and keep the sign of the bigger number).
4.) 100 + 120 = 220 (both positive,you add and keep the same sign, which is +)
5.) -32 + 89 = 57 (Different signs, so you subtract and keep the sign of the bigger number).
6.) 100 - 200 = -100 (Different signs, so you subtract and keep the sign of the bigger number).
2.) -75 - 12 = -87 (same sign, so you just add and keep the same sign)
