You have an unlimited number of each of these stamps. However, this way of paying for the things you want did. Click here for a poster of this problem. Plenty of Pens Age 7 to 11 Challenge Level: We have decided to buy a piece of computer software for

However, this way of paying for the things you want did. How much is the chocolate bar? An adult might say, ‘I’ve brought you some pennies. He cannot make up exactly 70 pence He cannot afford an item costing 1 pound He can make a prime number bigger than 10 with his coins. Coins 2 Age 7 to 11 Challenge Level: The Legacy Age 14 to 16 Challenge Level: Bipin is in a game show and he has picked a red ball out of 10 balls.

Start to write up their suggestions on the board, for example by listing the five coins and the total. Register for our mailing list. There are five different values of coins. A simple but ls1 way to introduce this problem would be to suggest to the class nricb you have five coins in your pocket and you’d like them to find out how much money you might have.

Which route gives you the highest return?

# Five Coins :

If the line was 25m long, how much money did they make? We have to know the names of the numbers, in the correct order.

DEE undertook the division. We have to understand that objects can have a value, which is irrespective of their colour, shape, size, mass, etc.

# Maths Search :

We have to understand the concepts of addition grouping things together and subtraction splitting things apart. Here, providing the amount of money is at about the 10p level, the arithmetic may well be within the scope of the child and can provide a very valuable ‘lesson in money’. Money Measure Age 7 to 11 Challenge Level: There were choco bars, chews, mini eggs and lollypops, all costing under 50p. What nruch of investment and spending would you use in order to ensure the best return on the money?

How can you use just one weighing to find out which box contains the lighter ten coins out of the ten boxes? Your school has been left a million pounds in the will of an ex- pupil.

Can you mpney them on the map of Teddy Town according to the rules? Recording Age 7 to 11 These upper primary activities have been chosen to give you chance to record in whatever way you like.

Register for our mailing list. Suggest a way in which Nathan could spend all his money. What slving each of the children buy with their money?

At a suitable opportunity, have a mini-plenary to share some strategies. Even Up Consider all of the five digit numbers which we can form using only the digits 2, 4, 6 and 8.

## Money Bags

George needs 2p more and Jim need 50p more to buy it. The use of vocabulary relating to money will also be very nrivh.

Three children are going to buy some plants for their birthdays. By the time children are introduced to ‘money’ in Year 1 most will have the first two skills, at least up to ten. At some point during this initial discussion, you may wish to list all the different coins for sllving. Are You a Smart Shopper? The Legacy Age 14 to 16 Challenge Level: Some may have acquired the third skill, the fourth skill will be being taught to them, and the fifth skill will probably be the last they comprehend.

Plenty of Pens Age 7 to 11 Solvung Level: Dan and Ann have 9 and 8 coins respectively. Olympic Magic Age 14 to 16 Challenge Level: To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional prkblem for teachers wishing to embed rich mathematical tasks into everyday classroom practice.