Taliyah was scuba diving at 29 feet below sea level (–29). Then she swam up to 13 feet below sea level (–13). Solve the number sentences to find Taliyah’s new location. (–29) – (–13)
So you want to change the - into a + and the negative sign before the 13 also into a plus. So it is -29 + 13 and that would be -16 ^.^ Hope this helped!!