A number line is a useful way of showing the order of numbers and can help you compare and estimate the value of numbers. The arrow on this number line is between 60 and 70.

Steelers' Perfect Free Agent Addition On Defensive Line Has Direct Connection To Pittsburgh's Front Office© Stephen Lew-Imagn Images ...

To add -4 and 5, draw the starting number on a number line and count to the right when adding numbers. What is the difference in temperature between a desert at 40 °C and a mountain top at -2 °C ...