I am absolutely struggling with the time issue here. Conceptually m not having much problems but I am unable to adhere to the 2 minute time frame as the complexity rises. There are some question's I am taking over 5 minutes to solve!!

I request the following.

1. What Estimation strategies are useful in the GMAT? I know of rounding, but what else?

2. Other shortcut method's. (Backsolving just doesn't work for me)

3. Any other general time-related advice.

Thanks in advance