Khan Academy Static

Large_numbers_in_practice

In this topic we will look into the basics of number approximation. You will come across examples in real life, where we round numbers when we are trying to be less exact. We round numbers to the nearest 10, or 100, or 1000. Let's see what we mean by that!

Comparing_numbers

Here we'll learn how to deal with a large group of numbers and understand how we can write them in an expanded form.

Using_brackets

The use of brackets (or parentheses) while multiplying or adding numbers helps us do long calculations in a very simple way! Let's see how.