Great Math Tricks Audiobook By Sribatsa Das cover art

Great Math Tricks

How to Perform Fast Calculation in Head without a Calculator

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Great Math Tricks

By: Sribatsa Das
Narrated by: Dave Wright
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This audiobook presents ways to perform fast calculations.

Chapter 1 - Introduction.

Chapter 2 - Times Table - This chapter presents the times table up to 25.

Chapter 3 - Square - This chapter presents the squares of numbers up to 25. Then, it presents how square of numbers ending with 0, starting with 1 and ending with all 0s, comprising of all 1s, comprising of all 9s and ending with 5.

Chapter 4 - Divisibility - This chapter presents ways to detect divisibility up to number 11.

©2014 Sribatsa Das (P)2014 Sribatsa Das Education
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The guy literally just reads off multiplication tables. 1×1 = 1, 1×2 = 2, 1×3 = 3. Endless minutes of literally him reading this.

Waste of money

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