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### Course: Kindergarten>Unit 1

Lesson 1: Counting small numbers

# Counting in order

Learn how to count without making mistakes.

## Want to join the conversation?

• Do we have to count from zero? Can we count from one?
• Yes you can count from one
• Why do we have numbers? And why do we need them?
• Hey, TaeTae! Numbers were invented many centuries ago to help us better understand the world around us! Numbers help us to do any kind of math imaginable, and math is especially important to science, which helps us understand the world and the universe. It all circles back to numbers! Hope this helped :)
• Are there numbers less than 0?
• Should we should start from zero or one?
• If you start from nothing, then you would start from zero. Otherwise, start from one.
• Why do we count in base 10?
• Probably because we (usually) have 10 fingers. Also because it's a pretty good compromise between not having too many different digits to remember and keeping numbers relatively concise – e.g. for base 20 you'd need 20 symbols, and in base 2 fairly small numbers run really long very quickly.
• Why do they call it eleven instead of onety-one?
• The Modern English eleven descends from Old English "endleofan", and
related forms in the various Germanic languages point back to an original
German compound word ainlif. Ainlif is composed of ain meaning one and the suffix lif(lifted straight from the German root lib) meaning "to adhere/remain/remain left over". So, Eleven means literally "one-left" (ie one past ten). Hence Eleven.
• How long do numbers really go and why are there so many numbers?
• Numbers go on infinitely, but some people say infinity is the highest point for it to go. This is what I think about the infinite numbers: there are so many numbers because if one were to own so much of one thing, and the amount surpassed the ending number, how much would one own? Also, it doesn't make sense for it to just end. Then what would be after it? I hope this answers your question.
• why are there negative numbers?
• Negative numbers are used to describe numbers that go below zero.