Math Help - Arithmetic Subtraction - Game Tips:
- This game provides subtraction practice using numbers from 0 to 20.
- Subtraction is based on previous addition knowledge.
- For example, 15-3=12 because 12+3=15 in the first place.
- Your Score Report appears after you have made 8 choices.
- Your Game Score is reduced by the number of gull hits.
- To slow the game speed repeat tap/click on the word Slider.
- To increase the game speed repeat tap/click on the word Math.
- Speed can also be adjusted with a keyboard's - and + keys.
- Refresh/Reload the web page to restart the game.
- Adjust the sound level of media on your device.