Basant can press –3 to cancel the previous +3, returning the lift to the ground floor. In mathematical terms, (+3) + (–3) = 0, showing how inverses work to balance movements.
Class 6 NCERT Ganita Prakash Chapter 10 The Other Side of Zero
class 6 Mathematics Textbook Chapter 10 question answer
If Basant accidentally presses +3, he can cancel it by pressing –3. This returns him to the ground floor (Floor 0). Mathematically, this is written as (+3) + (–3) = 0, showing that +3 and –3 are additive inverses. In integer operations, positive and negative values cancel each other when added, similar to movements in a lift. This demonstrates how opposites on the number line result in a net movement of zero.
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