Number-Lines

Can you calculate the mystery number shown on the scale? Use the keypad to input your answer. Then click the Tick.
If you need help, just click the Help button and one of the other missing numbers will be shown. You can keep doing this.
To change the range of intervals being shown click on the options button and change your settings. You can also choose a 1 or 2 player game.
The 2 player game does not allow the use of the Help button.
Use the Go button to start a new game.
See also Reading Decimal Scales and Guess My Number.