[Class 7] Consider the numbers represented by the following tokens: - Multiplication of Integers

part 2 - Question 3 - Figure it out (Page 31) - Multiplication of Integers - Chapter 2 Class 7 - Operations with Integers (Ganita Prakash II) - Class 7 (Ganita Prakash 1, 2 & old NCERT)

Remove Ads Share on WhatsApp

Transcript

Question 3 - Figure it out (Page 31) Consider the numbers represented by the following tokens: We can see that all of them represent the number (– 2). Now, take 4 times each of these token sets. That is, place each set into the empty bag 4 times. What integer do we get as the final answer in each case? Do we get different answers because the sets look different, or the same answer because they all represent – 2? Here (a) shows 2 red tokens: -2 (b) shows 2 red tokens and 2 zero pairs (green+red). The zero pairs cancel out. Remaining: -2 (c) shows 2 red tokens and 4 zero pairs. The zero pairs cancel out. Remaining: -2 They all represent the same integer: –2. Adding zero pairs does not change the value of the number.

CA Maninder Singh's photo - Co-founder, Teachoo

Made by

CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 16 years. He also provides Accounts Tax GST Training in Delhi, Kerala and online.