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1.05 Round numbers

Lesson

Are you ready?

Can you round 3 or 4 digit numbers? 

Round $7521$7521 to the nearest thousand.

 

Learn

Sometimes we only need an approximation of our number, rather than the exact value. We work out which number it is closest to, and we can do this on a number line, or using the rule for rounding. Let's see how to do both of these things in this video.

Apply

Round $96501$96501 to the nearest thousand.

 

Remember!

It doesn't matter how many places our numbers have, when we round the number, we need to know what we are rounding it to. If we round $130$130 to the nearest hundred, we will get a different answer than if we round it to the nearest ten.

 

Outcomes

MA2-5NA

uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers

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