Join Vince Kotchian for an in-depth discussion in this video What are decimals?, part of Learning Everyday Math.
- In this movie, I'll explain some useful things…that we can do with decimals.…So, what are decimals?…Decimals are just parts of a whole.…So, a really easy example to think about…is the decimal .25 is a quarter of the number 1.…If you think about money, that makes a lot of sense.…A quarter is a quarter of a dollar.…Another thing I want you to know about decimals…is what each place in the number stands for.…So, let's say we have a number.…1234.5678.…
So, what this means is that we have one thousand,…we have two hundreds, we have 3 tens, and 4 ones.…So, that's where we get 1234.…Now, after the decimal point…what this means is that we have…5 tenths of a one, we have 6 hundredths of a one,…we have 7 thousandths of a one,…we have 8 ten thousands of a one.…I know that's a little complicated…but usually for most of your purposes…you're just gonna be dealing with…the tenths and hundredths of a number.…
So, I'll give you can example where you might…use this in real life.…Let's say you have to round the price to the nearest dollar.…
- Practicing mental math
- Understanding decimals and fractions
- Working with percentages and ratios
- Solving equations
- Calculating area and volume
- Scaling recipes
- Estimating your running speed
- Calculating the area for home-improvement projects
- Working with probability
Skill Level Appropriate for all
1. Math Foundations: Part one
2. Math Foundations: Part Two
3. Math Foundations: Part Three
4. Shopping and Cooking Math
5. Health and Fitness Math
6. Home-Improvement Math
7. Probability and Counting Math
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