## Follow-On Maths

Take a starting number and apply a set of instructions to it to achieve a finishing number.

Click create to generate a new start number and instructions. The start number will not appear. You can choose whether to show the start number or the answer. Showing the answer modifies the puzzle so that students have to do the inverse of the instructions to find the start number.

A timer can be applied. The length of time available for each instruction can be adjusted. When the length of time has passed a light appears below the instruction to show the students that they should move on.

## Animal See-Saw

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

**

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?

## Speed Grid Challenge - Subtraction - Levels 1, 2 and 3

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

## Speed Grid Challenge - Addition - Levels Two and Three

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

## Power Lines

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

## Ghost Blasters 3: 2-digit minus 2-digit subtraction

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

## Ghost Blasters 3: 2-digit minus 1-digit subtraction

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

## Ghost Busters 3: 2-digit plus 2-digit addition

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