The number zero is an important part of the number line. Numbers to the left of zero are negative; numbers to the right are positive.

**Study and practice**

- Study number linesRead about number lines and take a self-quiz at mathsisfun.com.
- Play with a "zoomable" number lineZoom in and out of the number line to see where decimal numbers fit on the line.
- Download a selection of number line worksheetsDesign and print a selection of number line worksheets including blank number lines; addition and subtraction using a number line; and placement of fractions, decimals and mixed numbers on the number line.

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*Number line*

- SOS Math ForumOnline 24/7 maths assistance for algebra and higher