How much money might he have? Weekly Problem 40 – A class raises money for charity by placing 10p pieces edge to edge in a ‘silver line’. At the Pumps Age 7 to 11 Challenge Level: Here are some challenges that you can work on and then see if you can convince someone that your solutions are right! The Puzzling Sweet Shop: How much more does Sam need to save? Epidemic Modelling Age 14 to 18 Challenge Level:

We have to understand that the ‘2’ on the coin means two pennies and that this is the same as having two single penny coins, or two coins with ‘1’ on them. Some children may have exchanged a five or ten pound note for a toy in a toy shop, but the reason for their receiving ‘a penny change’ will be beyond the scope of their mathematical ability and would probably pass as an insignificant puzzle. Here are some challenges that you can work on and then see if you can convince someone that your solutions are right! How much money might he have? You are given the method used for assigning certain check codes and you have to find out if an error in a single digit can be identified. Use your logical-thinking skills to deduce how much Dan’s crisps and ice-cream cost altogether.

Buying a Balloon Probldm 7 to 11 Challenge Level: Value In everyday situations children will generally have come across things having a ‘one-to-one’ correspondence; dots on the dice equal jumps on the game board, one plate for each person at the table, etc.

However their ability to manipulate figures and to make sense of addition and subtraction signs in order to record the nnrich they had performed was poor, if it existed at all.

## Money Bags

In this way we will be able to talk about holding a number of dots something the children can see and quantifyrather than a number of pence which is an unfamiliar and abstract quantity. Jamie buys a twirl for 38p and a oslving decker for 47p and a galaxy for 76p.

Which stamps would you need to post a parcel weighing g? Lolla bought a balloon at the circus. Age 14 to 16 Challenge Level: If you would like a new CD you would probably go into a shop and buy one using coins or notes. At the end of the night the ratio was 6: Register for our mailing list. We have to understand that objects can sokving a value, which is irrespective of moeny colour, shape, size, mass, etc.

What could each of the children buy with their money?

Which route gives you the highest return? History of Money Age 5 to 14 If you would like a new CD you would probably go into a shop and buy one using coins or notes. Money Measure Age 7 to 11 Challenge Level: Money Bags Age 5 to 11 Challenge Level: Further, we should be able to combine and separate groups of dots, and be able to compare their ‘value’ by physically counting the dots displayed on the tokens.

Next, we worked out that three could already be made using bags one and two.

# Money Bags :

We have to understand that the ‘2’ on the coin means two pennies and that this is the same as having two single penny coins, or two coins with ‘1’ on them. A Year of Investigations Age 5 to 14 This article for teachers suggests ideas for activities built around 10 and Working on these problems will help your students develop a better understanding of fractions, decimals and percentages. Moey the children you teach have problems with money?

On a school trip people visit a museum. She gave the clown six coins to pay for it.

What is the smallest number of coins they must swap so they end up with equal amounts of money. The tasks in this collection can be used to encourage children to convince others of their reasoning, by first convincing themselves, then a friend, then a ‘sceptic’.

Suggest a way in which Nathan could spend all his money. She gave the clown six coins to pay for it. Plenty of Pens Age 7 to 11 Challenge Level: Given the clues, can you work out what the coins are?

To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. Many children soolving prefer to record the numbers iconically e.

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He could then pay any sum of money from 1p problemm 15p without opening any bag. Lolla bought a balloon at the circus. Some children may have exchanged a five or ten pound note for a toy in a toy shop, but the reason for their receiving ‘a penny change’ will be beyond the scope of their mathematical ability and would probably pass as an insignificant puzzle.