If we count the treats one by one we get a total of 12 . We can also use repeated addition to find the total number of treats. There are 4 groups of 3 , so we can add 3 + 3 + 3 + 3 . Whether we multiply or …

Video transcript Let's learn to multiply. M U L T I P L Y. And the best way I think to do anything is just to actually do some examples, and then talk through the examples, and try to figure out what they …

Multiplication is like a shortcut for repeated addition. Instead of adding 2+2+2, you can multiply 2x3 and get the same answer! Whether you're using a number line, drawing groups of objects, or just …

In this topic, we will multiply and divide whole numbers. The topic starts with 1-digit multiplication and division and goes through multi-digit problems. We will cover regrouping, remainders, and word …

Explore multiplication and division concepts with free, interactive lessons and practice on Khan Academy.

Practice Multiply unit fractions and whole numbers Get 5 of 7 questions to level up!

Sal shows lots of examples for how to multiply 2- and 3-digit numbers using "standard algorithm". Created by Sal Khan.

Why have just one way to multiply fractions when you can have four? Learn how to use number lines, the fraction model, the area model, and word problems to multiply fractions like a pro.

To multiply decimals, we multiply them just like whole numbers. We count the number of digits behind the decimal in both numbers we're multiplying, and make sure our answer has the same number of …

Learn how to multiply two complex numbers. For example, multiply (1+2i)⋅ (3+i). A complex number is any number that can be written as a + b i , where i is the imaginary unit and a and b are real numbers.