Final answer:
To find the sum or difference of the given numbers, subtract or add them accordingly in the given order.
Step-by-step explanation:
To find the sum or difference of the given numbers, we simply add or subtract them in order.
- 49.25 - 87.50 = -38.25
- -38.25 - 18.24 = -56.49
- -56.49 - 12.18 = -68.67
- -68.67 + 11.14 = -57.53
- -57.53 - (-9.3) = -57.53 + 9.3 = -48.23