Common Core math standards, kindergarten students will need to be able to count to 100 and write numbers from 0-20. If you work with a kindergarten student or someone who is preparing for kindergarten, you should check out the Number Time games located on the BBC website. Bernie and Bill lead students through fun games to help them work on counting. Ann and Addem's Dartboard asks players to throw darts to match a generated number. This is great for teaching doubling as students will have to think of a double (7 + 7, 8 + 8, etc.) for numbers greater than 9.
Snakes and Ladders is a Shockwave version of the classic children's game Chutes and Ladders where players roll a die and move up the board numbered 1-100. If you land on a ladder, you get to move up. If you land on a snake's head, you slide down. There are other games on this website as well that will engage your young mathematician.