Cool down with tens and units fun

Wow. What warm Spring weather. Cool yourself down by putting the penguins in the right place to make a tens and units number.

http://www.bbc.co.uk/schools/starship/maths/games/place_the_penguin/big_sound/full.shtml 

 

Not tricky enough? Can you find the 10 bones on the blank 100 square in less than a minute?

http://www.oswego.org/ocsd-web/games/DogBone/gamebone.html