Great Math Tricks: How to Perform Fast Calculation in Head Without a Calculator cover art

Great Math Tricks: How to Perform Fast Calculation in Head Without a Calculator

How to Perform Fast Calculation in Head without a Calculator

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Great Math Tricks: How to Perform Fast Calculation in Head Without a Calculator

By: Sribatsa Das
Narrated by: Dave Wright
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About this listen

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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When the narrator said that 3 x 8 = 25, along with another multiplication, I realised that I could not listen any further.

Times table gives wrong answers

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Incorrect information. As on 13th February 2018, through the times table the audio book narrates "times eight equals twenty four" during the three times table which is wrong. it should be 25 which is jarring. Also how does 6 × 8 = 38?

Marred by wrong information, 3 x 8 is 24, not 25

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