To move from Floor +3 to Floor –1, press the ‘–’ button 4 times. This means moving down 4 floors, calculated as (–1) – (+3) = –4. The lift descends four levels using integer subtraction.
class 6 Mathematics Textbook Chapter 10 question answer
class 6 Mathematics Chapter 10 The Other Side of Zero solutions
To move from Floor +3 to Floor –1, press the ‘–’ button 4 times. This downward movement is calculated as (–1) – (+3) = –4. Starting from +3, pressing the ‘–’ button once moves the lift to +2, then to +1, then Floor 0, and finally to –1. This demonstrates integer subtraction on the number line, where moving left indicates negative movement.
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