Answer:
64
Step-by-step explanation:
Do the subtractions in the order they appear from left to right.
353 - 199 - 90 =
= 154 - 90
= 64
Doing the subtractions one at a time.
Subtract 199 from 353:
353
-199
--------
154
Subtract 90 from 154:
154
- 90
------
64
