Khan Academy Static

Fractions

This will be your first introduction to the idea of fractions. You'll learn what they are and what they can represent. Then in 4th and 5th grades, you'll learn to compute with them.

Place_value_and_rounding

Going a bit deeper with our understanding of place value from 2nd grade. We'll apply this knowledge to learn to round things to the nearest 10 and 100.

Addition_and_subtraction

Learn how to add and subtract three-digit numbers by thinking about ones, tens, and hundreds.

Measurement_and_geometry

In 2nd grade, you learned to measure lengths. Now we can measure the length around the edge of an object (perimeter) and how much "space" something takes up on a flat surface (area).

Multiplication_and_division

Multiplication and division are two of the most important operations to understand in math. If you drink 2 cups of water, 5 times, how much water have you drunk? If you need to divide 9 slices of cake between 3 friends, how much cake does each friend get?

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