Did you know that the measurement of an angle is…

# Category: Khan Academy 4th Grade Math

Converting mixed numbers to improper fractions and improper fractions to…

Use a number line to round two-digit numbers to the…

Great geometry primer on perimeter and area. Listen carefully. Sal…

Let’s add some tools to our geometry tool belt. Here’s…

With like denominators, you’re basically just adding numerators. That’s not…

Do you like leftovers? (personally, we think they are delicious!).…

A circle is at the foundation of geometry and how…

Learn why we use a “ones place” and a “tens…

To find the factors of a number means to find…