Suppose I am working on a problem and I wish to calculate the density of something. I measure the mass to be m = 24.5 grams and the volume is V = 10 cm 3. In this case the density would be: ALERT!
Leave the digit the same if the next digit is less than 5 (this is called rounding down) but increase it by 1 if the next digit is 5 or more (this is called rounding up). The rounded value must be a ...
Who’s bigger: Washington or Lincoln? Hitler or Napoleon? Charles Dickens or Jane Austen? That depends on how you look at it. When we set out to rank the significance of historical figures, we decided ...
IT is a well-known fact that most numbers in statistical tables start with a small digit. For example, in population tables almost one third of the entries begin with the digit 1. The same holds true ...
A GCSE Maths video about how and why we round numbers to significant figures. Significant figures start at the first non-zero number.
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