# Decimals

Contents

Understanding decimals conceptually, using operations with decimals, rounding and estimating with decimals, and converting decimals.

See how you score on these 20 practice questions

What are decimal numbers? How are they like fractions?

See how decimals can be placed on the number line, just like fractions and whole numbers can.

Learn how to round decimal numbers to specific place values. For example, round 3.14159 to the nearest hundredth as 3.14.

Let's test our understanding of decimals by comparing them to one another!

Learn how to rewrite decimals as fractions.

Honestly, once you remember one very important rule, the rest of adding and subtracting decimals is a snap. That rule is to be sure and align your decimals first. In this tutorial, you'll get a chance to practice this with us and become fluent adding decimals. We'll tackle subtracting decimals in the next tutorial.

Just like with adding decimals, the key to subtracting decimals is aligning the decimal points. Let's practice!

In this tutorial, we practice solving word problems by adding and subtracting decimal numbers.

You've already multiplied decimals in the 5th grade. We'll show you some ways to handle slightly more complicated problems. Now you'll become super good at it with a bit more practice! Common Core Standard: 6.NS.B.3

Learn long division with decimals. Solve problems like 30.24 divided by 0.42.