Combinations

problem

Throw a 100

Age

7 to 11

Challenge level

Can you score 100 by throwing rings on this board? Is there more than way to do it?
problem

Magic Triangle

Age

7 to 11

Challenge level

Place the digits 1 to 9 into the circles so that each side of the triangle adds to the same total.
problem

Elf Suits

Age

7 to 11

Challenge level

If these elves wear a different outfit every day for as many days as possible, how many days can their fun last?
problem

Beads

Age

7 to 11

Challenge level

Three beads are threaded on a circular wire and are coloured either red or blue. Can you find all four different combinations?
problem

Chocoholics

Age

7 to 11

Challenge level

George and Jim want to buy a chocolate bar. George needs 2p more and Jim need 50p more to buy it. How much is the chocolate bar?
problem

Button-Up Some More

Age

7 to 11

Challenge level

How many ways can you find to do up all four buttons on my coat? How about if I had five buttons? Six ...?
problem

Calcunos

Age

7 to 11

Challenge level

If we had 16 light bars which digital numbers could we make? How will you know you've found them all?
problem

Ice Cream

Age

7 to 11

Challenge level

In the café, your ice cream selection can't include a combination that someone else has chosen. What could these seven children have chosen?
problem

Penta Place

Age

7 to 11

Challenge level

Penta people, the Pentominoes, always build their houses from five square rooms. I wonder how many different Penta homes you can create?
problem

On Target

Age

7 to 11

Challenge level

You have 5 darts and your target score is 44. How many different ways could you score 44?