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Numbering all floors in Bela's Building of Fun
Last updated at October 8, 2025 by Teachoo
Class 6 (Ganita Prakash & Old NCERT)
Chapter 10 Class 6 - The other side of Zero (Ganita Prakash)
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Bela's Building of Fun
- Integers - Definition
- Addition of Integers
- Inverse of an Integer
- Comparing Integers
- Figure it out - Page 247
- Subtraction of Integers
- Adding and Subtracting Larger Numbers
- Adding and Subtracting Integers using Number line
- Figure it out - Page 253, 254
- Using the unmarked number line to add and subtract
- Token Model
- Figure it out - Page 259
- Credit and Debit
- Geographical cross sections
- Temperature
- Hollow Integer Grid
- Amazing Grid
- Figure it out - Page 265, 266
Transcript
Numbering all floors in Bela's Building of FunNow, we note that Starting from the ground floor, We can reach Food Court by pressing +1 We can reach Art Centre by pressing +2 Similarly, We can reach Toy Store by pressing –1 We can reach Video Games by pressing –2 But, what is Welcome hall then? Welcome Hall is our reference point. It is the ground floor. So, we call it Floor 0 Now, let’s number our floors Welcome Hall is 0 Going up Food court is +1 Art Centre is +2 Books is +3 Ice cream is +4 Sports is +5 Space is +6 Going down Toys is –1 Video games is –2 Cinema is –3 Ghost House is –4 Dinosaur is –5 Thus, we can say A number with a ‘+’ sign in front is called a positive number. A number with a ‘–’ sign in front is called a negative number. Zero is neither a positive nor a negative number. We do not put a ‘+’ or ‘–’ sign in front of it.
