To be honest, I don't think there are any complex 3 digit multiplications on real cases. 

For exampl, if you have to multiply the days of the year, the best way is to assume 350 days (multiply by 7, add 2 zeros, and then divide by 2). Same with any other 3 digit number, you ask to use a user-friendly number that is sufficiently close, and then use it for the estimation.

And no, you won't be “dinged” for taking a bit longer on a complex calculation, that is not what we are evaluating here, so don't fret about it (but practice 2 digit number multiplication).

Hi!

It's normal that more complex calculations take more time.

3-digit multiplications are not that common as you are often able to simplify the calculations (e.g. by rounding).

My advice is to go through fast math articles here on PrepLounge and get quicker in solving 2-digit multiplications.

Hope this helps.

Best,

Anto

3-digit by 3-digit multiplication should not take more than a minute under most circumstances.

If it is taking you longer than that - then I suggest to put in some math drills and speed-up your calculations.

Having said that, there are 2 things to ponder over:

• Typically you do not get 3-digit multiplications in cases - math is relatively easier there.
• If you do encounter a 3-digit multiplication then try to simplify it by cutting corners. 351 * 258 can be approximated as 350 * 260. Which can be seen as 700 * 130. Which can further be written as 7000 * 13. Then as 7000 * 10 + 7000 * 3. Then as 70000 + 21000 = 91000. The actual answer for 351 * 258 is 90,558. So not far off.

Hello!

Agree with what has been outlined already: 

• There are no long math calculations that would take you 1-2 per operation. If you see yourself in that situation, probably u are making it more complicated than needed 
• There is not such thing as a standard timing, it should be fluid and agile

Hope it helps!

Cheers, 

Clara