Subtraction using Token System  - with 2+ Examples [Class 6 Maths] - Token Model

part 2 - Subtraction using Tokens - Token Model - Chapter 10 Class 6 - The other side of Zero (Ganita Prakash) - Class 6 (Ganita Prakash & Old NCERT)
part 3 - Subtraction using Tokens - Token Model - Chapter 10 Class 6 - The other side of Zero (Ganita Prakash) - Class 6 (Ganita Prakash & Old NCERT)

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Transcript

Subtraction using Tokens This is different from Addition In addition, we make pairs In subtraction, we eliminate tokens Let’s do some examples Subtract (+5) – (+4) We do follow these steps First make +5 using tokens Then remove 4 tokens Remaining is our answer ∴ (+5) – (+4) = (+1) Subtract (–7) – (–5) We do follow these steps First make –7 using tokens Then remove 5 tokens Remaining is our answer ∴ (–7) – (–5) = (–2) Now, let’s do a different question Subtract (+5) – (+6) We do follow these steps First make 5 using tokens Now, we cannot remove 6 tokens from 5 So, we add a pair of positive and negative tokens We can do that because (+1) + (–1) = 0 Now, remove 6 positive tokens Remaining tokens is our answer ∴ (+5) – (+6) = (–1)

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