Animal See-Saw is a game for two players.

Each player is given 12 animals.

Players take it in turns to place an animal on their side of the see-saw - making sure that their side of the see-saw is never more than 5 kg heavier than the other side.

The winner is the player who survives the game without ever being more than 5kg heavier than his/her opponent.

If a player does become 5kg heavier than their opponent, the see saw falls, they lose and the game is over.

If both players make it to the end of the game, the winner is the one with the most weight on his/her side.

http://www.counton.org/games/animal-see-saw/index.html

Your task: Answer the question below. Then download and open the attached Excel spreadsheet. The number of legs is the password to unlock the Excel sheet. Add your name to the spreadsheet and send it on to see who else can unlock it.

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Note: This is not a trick question. This is a real math problem so don't say that a bus has no legs. Also, there is no driver on the bus, so don't add any legs for a driver.

There are 7 girls in a bus
Each girl has 7 backpacks
In each backpack, there are 7 big cats For every big cat there are 7 little cats

Question: How many legs are there in the bus?

You choose the time and the number of questions. Can you beat the clock?

Level One
http://www.oswego.org/ocsd-web/games/SpeedGrid/Subtraction/urikasub1res....

Level Two
http://www.oswego.org/ocsd-web/games/SpeedGrid/Subtraction/urikasub2res....

Level Three
http://www.oswego.org/ocsd-web/games/SpeedGrid/Subtraction/urikasub3res....

You choose the time and the number of questions. Can you beat the clock?

Level Two
http://www.oswego.org/ocsd-web/games/SpeedGrid/Addition/urikaadd2res.htm...

Level Three
http://www.oswego.org/ocsd-web/games/SpeedGrid/Addition/urikaadd3res.htm...

Phase One
Put the power buttons in the correct circles so all lines of numbers add to the given number.
http://www.oswego.org/ocsd-web/games/Powerlines/powerlines1.html

Phase Two
Use the password from Phase One to continue the challenge!
http://www.oswego.org/ocsd-web/games/Powerlines/powerlines2.html

Phase Three
Use the password from Phase Two to complete the challenge!
http://www.oswego.org/ocsd-web/games/Powerlines/powerlines3.html

The players take turns clicking on the ghost with the answer to the 2-digit minus 2-digit subtraction question.

http://www.oswego.org/ocsd-web/games/Ghostblasters3/ghostsub3.html

The players take turns finding the ghost with the answer to the 2-digit minus 1-digit subtraction question.

http://www.oswego.org/ocsd-web/games/Ghostblasters3/ghostsub2.html

Players take turns clicking on the ghost with the answer to the 2-digit + 2-digit question.

http://www.oswego.org/ocsd-web/games/Ghostblasters3/ghostadd3.html

Players take turns clicking on the ghost that is the correct answer to the 2-digit + 1-digit addition question.

http://www.oswego.org/ocsd-web/games/Ghostblasters3/ghostadd2.html

This is a two player game. The two players choose the total. Two numbers appear. If they add to the total, the first player to press their key gets a point. Three thumbs up!

http://www.oswego.org/ocsd-web/games/ghostblasters2/gb2nores.html