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Mathematics: Significant figures


In this module, you can study what a significant figure is and how to round numbers to a significant figure.

The video above explains what significant figures are and how to find them in a number.

The video above shows you how to round to a significant figure.


Did you know?

The number of significant figures in a number is not the same as the number of decimal places.

The number "0.1503" has four significant figures, while this number "0.00932" has only three.

Study and practice


The video explains how to use basic calculator functions and provides examples.


0.00 min      addition (+), subtraction (-), multiply (x), divide (÷)

1.19 min      decimal point
2.43 min      C, CE and backspace
4.19 min      square, square root & fractions
6.17 min      percentage (%)

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