How do you round numbers to the nearest 10?

http://education.abc.net.au/home#!/media/1225428/how-do-you-round-numbers-to-the-nearest-10-

Publisher, ABC Education, Video

Sometimes it's helpful to use rounding to estimate a calculation, instead of working out the precise answer. Here's how to round to the nearest 10.

BBC, ' How do you round numbers to the nearest 10?', ABC Splash

26 July 2014 Edit: 17 February 2018


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