Build it up!!
We start with any four numbers (not zero!)
We then add in pairs and place the totals above them :-
And we then add in pairs the new numbers we just got.
We do the same with those two numbers to get our final number.
You need to find four starting numbers to place at the bottom so that when you get to the top it's 15 each time.
Try to find as many starting four numbers as you can.
This is a game for two or more players.
Each player begins by writing 50 on their score sheet.
Place two dried peas into a plastic cup.
Toss the peas onto the game board.
Add the two numbers the peas land on.
Take the sum away from 50 and record the remainder.
Next player takes a turn.
In the following turns, the players take the sum of the numbers away from the new remaining number.
The first player to reach zero wins.
Change the game by:
Using three peas instead of two.
Altering the starting number from 50 to 100.
Multiplying the numbers that the peas land on.
Making a different size game board with a different set of numbers.
Using three straight lines divide this rectangle into four parts.
Each part must contain a triangle, a rectangle, a pentagon, a hexagon, a cylinder and an oval.
How many of the rectangles are differently shaped?
Can you find any that are 'similar' - that is the same shape but a different size?
You have two sets of the digits from
Arrange FOUR of these digits in each box to make a four-digit number as close to the target number as possible. If you find that easy, try again but this time you can ONLY use each digit ONCE- cross them out as you go so you don't use a digit too many times!!