2.1. Numerical Intro level
Who’s there?
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Someone is knocking at your door. You don't expect anyone, so you don't even make an attempt to get up. However, someone keeps knocking on the door. The knocking is so soft, perhaps it is even a figment of your imagination, or something that has been dragged down the corridor. They seem to stop, but then they come back, and just when you think they have stopped, you hear a trickle of a voice calling out to you. Either you are daydreaming, which wouldn't make much sense, or someone is there. Who is it?
Source: Picture by PIRO4D retrieved from Pexels (https://www.pexels.com/photo/silver-door-knob-and-deadbolt-285669/)
Lending a hand
Source: Picture by Pixabay retrieved from Pexels (https://www.pexels.com/photo/composition-creativity-desk-education-207756/)
You walk silently down the corridor. Maybe the medication is playing tricks on you again. Very bad tricks. Just as you're getting closer to the door, you hear your name, pluck up your courage and open the door. It's Señora María's grandchildren, did your mother promise them something? Sometimes you share a snack, Madame's pension doesn't go far enough. You shrug your shoulders waiting for an answer and then, the youngest, holds out her arms with a maths book. You remember that book, your father could still help you then. Their grandmother was wondering if you could help them, she can't read or write and the exercises now are too difficult to explain them off the top of her head, do you think you can?
Watch the following video (https://www.youtube.com/watch?v=eNodAB9v6YM) and answer the following question:
Q1. According to the video, why our numbering system is called positional? *
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