55.3 + 0.2 + 23.8 + 0.7
The sum of 55.3, 0.2, 23.8, and 0.7 is 80.
To add these numbers step-by-step, follow these instructions:
1. Start by adding 55.3 and 0.2 together:
55.3 + 0.2 = 55.5
2. Next, add the result from step 1 to 23.8:
55.5 + 23.8 = 79.3
3. Finally, add 0.7 to the result from step 2:
79.3 + 0.7 = 80