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Understanding Multiplication Patterns from Table of 3 and –3
Last updated at August 14, 2026 by Teachoo
Class 7 (Ganita Prakash 1, 2)
Chapter 2 Class 7 - Operations with Integers (Ganita Prakash II)
- Quick Recap on Intergers
- Carrom Coin Integers
- Token Model for Adding and Subtracting Integers
- Multiplication of Integers
-
Patterns in Integer Multiplication
- Brahmagupta’s Rules for Multiplication and Division of Integers
- A Magic Grid of Integers
- Division of Integers
- Figure it out - Page 39
- Integer Expressions - Properties and Pattern
- Figure it out - Page 42, 43, 44
Transcript
Understanding Multiplication Patterns from Table of 3 and –3 Let’s look at this table We observe that –2 × 3 = –3 × 2. So, it doesn’t matter where the negative sign is, the answer remains the same Positive × Positive = Positive Positive × Negative = Negative Negative × Negative = Positive So, we can write If there is one negative sign, answer is negative If there are two negative signs, answer is positive (it’s because even number of negative signs cancel out) From our rules, we can say 2 × -3 × -4 is positive, as even number of negative signs -2 × -3 × -4 is negative, as odd number of negative signs 2 × -3 × 4 is negative, as odd number of negative signs –2 × -3 × 4 is positive, as even number of negative signs
