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## Class 1 math (India)

### Unit 1: Lesson 1

Counting small numbers

# Counting with small numbers

Sal counts squirrels and horses.

## Want to join the conversation?

• why does 100 have 2 0
• It's because of place value. Zeros are place holders to make sure 1000 doesn't get confused with 100000000.
• Hey, fractions are 2/4 or 1/2 shayde.rakurku-hohepa.
• How to add quickly without thinking? Help.
• If you practice it a lot it will no longer feel like you are thinking about it
• Aren't counting numbers also known as whole numbers? Why are there two different names for the same thing?
• Like what Elizabeth Cummings said, counting numbers begin with the number one. This is the case because we cannot count with negative numbers. For example, I can't say that I have -2 apples.
Whole numbers are, by definition, numbers that don't have a fraction or decimal, because then, it wouldn't be whole. Whole numbers cannot be negative, and start with a zero.
• What is a quintillion?
• A quintillion is a number that is 1 followed by 18 zeroes(1,000,000,000,000,000,000.
• Why do we have a specific order of counting numbers,it could be just random also.
• If we didn't have a specific order of counting numbers, we would not be able to compare numbers. If we counted numbers in a random order, both 1 2 3 4 5 and 1 5 2 3 4 would be correct. In the first sequence, 2 is less than 5 because it comes first. In the second sequence, 5 is less than 2 because it comes first. How can 2 numbers be less than each other?
• so you just count and drag the pictures?
• yes,you just got to count how many pictures you have. hope you are having a great day today :)
• which is the biggest number ever !
• there is no biggest number but you can call the biggest number infinity
• I was just wondering how your able to rank up in the different courses. Like im on lvl 1. But i get all problems right but im still on lvl 1. How do i master each challenge