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Coins (2)

Age 7 to 11
Challenge Level Yellow star
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Most countries have their own currency - coins and notes.
How many different values of coins and/or notes do you have in your country?

Let's take the USA as an example - using dollars $ and cents ¢.
One dollar is equal to 100 cents.
Coins:   1 ¢,  5 ¢ , 10 ¢ , 25 ¢ , $1
Banknotes: $1 , $5 , $10 , $20, $50 , $100 .

For another example let's take India - using Rupee ₹ and Paise .
One Rupee is equal to 100 Paise.
Coins  50 & ₹1, ₹2, ₹5, ₹10,
Notes  ₹5, ₹10, ₹20, ₹50, ₹100, ₹500, ₹1000


Using American currency
What is the smallest number of notes and coins (and what are they) which make a total of 12 dollars 83 cents?
What is the largest number of different notes and coins you can use to make 12 dollars 83 cents?

Using Indian currency
What is the smallest number of notes and coins (and what are they) which make a total of  ₹1260 ?
What is the largest number of different notes and coins you can use to make ₹1260 ?

 
Photograph Acknowledgement
http://www.psdetecting.com/

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The NRICH Project aims to enrich the mathematical experiences of all learners. 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.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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