Learn how to do mental calculations up to 8 digits x 8 digits. Learn all the steps in the tutorial section and then practice and see how you compare in game center to hundreds of other users who have already learned the technique.
Simply choose the difficulty from 2x2 through 4x4 and a special masters level of 8x8 and a random set of numbers appear for you to multiply using the powerful technique of cross multiplying.
The application gives you immediate feedback helping you improve your mental multiplication abilities.
Localized languages added for:
Ratings and Reviews
Very well-thought app! It falls in the category of "that's how I will do it!" if i did simething like that. This app entertains you while, at the same time, it sharpens your mental abilities as your time gets better with every try!
I can now practice and get better quickly! Thanks!
My 6 year old son and I are both math geeks. This app is bringing countless hours of enjoyment to us both. Ty!!
- Michael Olivero
- 5.3 MB
- Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.
- English, Danish, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish, Thai
- Age Rating
- Rated 4+
- © 2011-2014 Michael Olivero
Challenge friends and check leaderboards and achievements.
With Family Sharing set up, up to six family members can use this app.