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There are 9 lessons in this math tutorial covering Rounding and Significant Figures. The tutorial starts with an introduction to Rounding and Significant Figures and is then followed with a list of the separate lessons, the tutorial is designed to be read in order but you can skip to a specific lesson or return to recover a specific math lesson as required to build your math knowledge of Rounding and Significant Figures. You can access all the lessons from this tutorial below.
In this Math tutorial, you will learn:
Do you always write the exact number of items in a collection? Why?
How do we express the number of items in a collection if we are not sure about the exact value.
A calculator gives a value of 6.66666 cm when we want to find the side of an equilateral triangle if the perimeter is 20 cm. Is it correct to write the result in so many digits after the decimal place? Why?
We do not always need to know the exact value of something. In these situations we can use an approximate value to provide an idea of how large or small the quantity involved is. Usually, we use values ending with zero to represent these approximate values; we call these rounding. Let's take a closer look at this new operation.
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