What number is 40% of 30? Learn the formula and be able to figure out all of the percent problems. The instructor demonstrates the basic formula. Then she shows how and where to plug in the numbers according to what the problem is asking...

The teacher defines and writes a list of the different categories of numbers. But sometimes it's hard to keep all that organized. So she draws a diagram and explains further how the categories of numbers compare or relate to each other....

Here's a quick look at percentages as proportions. Percentages really are looking at numbers as a part of a whole, so it makes sense to look at it as a proportion. And how do you write proportion? You write proportions like a fraction,...

What number is 40% of 30? Learn the formula and be able to figure out all of the percent problems. The instructor demonstrates the basic formula. Then she shows how and where to plug in the numbers according to what the problem is asking...

Watch this tutorial to see exactly how to connect percents with proportions. [1:08]

Whole numbers are defined and explained in this video tutorial. Examples are included.

In this video students identify percent, amount and base.

Gain a basic understanding of the types of fractions through this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [6:41]

Students learn how to identify a whole (100%) or greater (>100%) percentages. This lesson is 2 of 9 in the series titled "Whole and Greater Percentages."

Students learn how to identify a whole (100%) or greater (>100%) percentages. This lesson is 3 of 9 in the series titled "Whole and Greater Percentages."

Students learn how to identify a whole (100%) or greater (>100%) percentages.

Students learn how to identify a whole (100%) or greater (>100%) percentages. This lesson is 6 of 9 in the series titled "Whole and Greater Percentages."

Students learn how to identify a whole (100%) or greater (>100%) percentages. This lesson is 8 of 9 in the series titled "Whole and Greater Percentages."

Students learn how to identify a whole (100%) or greater (>100%) percentages. This lesson is 1 of 9 in the series titled "Whole and Greater Percentages."

Students learn how to identify a whole (100%) or greater (>100%) percentages.

This lesson goes over whole numbers, or natural numbers that are not fractions/decimals. It is 2 of 10 in the series titled "Whole Numbers."

This lesson goes over whole numbers, or natural numbers that are not fractions/decimals. It is 4 of 10 in the series titled "Whole Numbers."