Vertically and Crosswise Multiplication
for iPad and iPhone
This math app is about a multiplication technique introduced by Shri Bharti Krishna Tirthaji in his book “Vedic Mathematics”, published in 1965. Tirthaji claimed to have found the mathematical content for his book in ancient sacred Hindu texts.
In the vertically and crosswise multiplication method the numbers are multiplied by altering vertical and crosswise multiplications so that two digit numbers can be multiplied in just three steps: vertical, crosswise, and vertical. Three digit multiplications require just five steps: vertical, crosswise, vertical, crosswise, and vertical.
The method has similarities with the lattice and grid multiplication methods. With enough practice one can eventually do all the steps in one’s head and mentally solve multiplication problems without writing the steps down.
Features:
 The multiplicand can have up to 3 digits
 The multiplier can have up to 3 digits
 You can set your own problems
 The current operation for each column can be hidden
 The operands for the current operation can be highlighted
 Three different themes
 Native interfaces for iPhone, and iPad
Videos
Vertically and Crosswise Multiplication with 3digit numbers262 x 472

Vertically and Crosswise Multiplication in the Apple VPP Store for Education
The Volume Purchase Program allows participating educational institutions to purchase iDevBooks math apps in volume and distribute them to students. All iDevBooks math apps offer special 50% discount for purchases of 20 apps or more for participating educational institutions.