Math Playlist Lessons -
Basic Math
Math Playlist Lessons
Basic Math
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Math anxiety is a feeling of worry or uneasiness that interferes with the ability to do math. It's been shown to decrease working memory, which is a part of your short-term memory that holds information while solving problems.
Addition is a way to put things together. When you add two amounts, you're counting them together, as one larger amount.
Go deeper in our Addition and Subtraction tutorial.
Subtraction is taking things away. When you have an amount and you subtract from it, the amount becomes smaller.
Go deeper in our Addition and Subtraction tutorial.
When you multiply, you're basically adding a certain number more than once. For instance, if you eat 4 pieces of candy, then you eat another 4, then 4 more, you can say that you multiplied the amount of candy you ate.
Go deeper in our Multiplication and Division tutorial.
Division is splitting something equally. For instance, let's say you have 10 raffle tickets, and you'd like to share them with 5 friends. You divide the tickets among your friends. Each friend gets an equal number of tickets. When you divide 10 tickets among your five friends, you create 5 equal groups of 2 tickets.
Go deeper in our Multiplication and Division tutorial.
A decimal is another way to write a fraction. You can think of a decimal as a part of a whole number. It is less than 1 whole thing, but more than 0.
Go deeper in our Decimals tutorial.
A percentage is another way of writing a decimal. Just like decimals, a percentage is a part of a whole. Basically, it's less than 1 whole thing, but more than 0.
Go deeper in our Percents tutorial.
A fraction is part of a whole. It's less than 1 whole thing, but more than 0. We use fractions all the time in real life.
Fractions look a little like division expressions, but they aren't problems to be solved. They are a way of expressing an amount. Like numbers, fractions tell you how much you have of something.
Which of these is larger: 4/8 or 1/2?
They're equal.
If you write 4/8 as 1/2, you're reducing it. When we reduce a fraction, we're writing it in a simpler form. Reduced fractions are always equal to the original fraction.
Go deeper in our Fractions tutorial.
Exponents are numbers that have been multiplied by themselves. For instance, 3 · 3 · 3 · 3 could be written as the exponent 34: the number 3 has been multiplied by itself 4 times.
Go deeper in our Algebra Topics tutorial.
A negative number is any number that is less than zero. For instance, -7 is a number that is seven less than 0.
Remembering all of the rules for adding and subtracting numbers can be overwhelming but here's a trick to help you.
Go deeper in our Algebra Topics tutorial.
Equations are two expressions set equal to each other using an equal sign(=). When we're simplifying expressions, our end goal is to have no operations left to do.
Sound complicated? Here are some quick videos showing how it's done.
Go deeper in our Algebra Topics tutorial.
