Answer:
150
Explanation:
255 - 99 = ?
255 can become 250
99 can become 100
250 - 100 = 150
To check, 255-99 = 156 so our answer seems to be correct and a close estimate! ✔
Have a nice day! - if this is not what you need, let me know. Different classes ask you to estimate differently.
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather