# Resources tagged with: Algorithms

### There are 16 results

Broad Topics >

Decision Mathematics and Combinatorics > Algorithms

##### Age 14 to 16

Challenge Level

It's like 'Peaches Today, Peaches Tomorrow' but interestingly
generalized.

##### Age 14 to 16

Challenge Level

However did we manage before calculators? Is there an efficient way
to do a square root if you have to do the work yourself?

##### Age 11 to 14

Challenge Level

Find the numbers in this sum

##### Age 11 to 14

Challenge Level

This addition sum uses all ten digits 0, 1, 2...9 exactly once.
Find the sum and show that the one you give is the only
possibility.

##### Age 14 to 16

Challenge Level

What day of the week were you born on? Do you know? Here's a way to
find out.

##### Age 14 to 16

Challenge Level

Imagine a strip with a mark somewhere along it. Fold it in the middle so that the bottom reaches back to the top. Stetch it out to match the original length. Now where's the mark?

##### Age 14 to 16

Challenge Level

Keep constructing triangles in the incircle of the previous triangle. What happens?

##### Age 11 to 14

Challenge Level

This challenge is to make up YOUR OWN alphanumeric. Each letter
represents a digit and where the same letter appears more than once
it must represent the same digit each time.

##### Age 14 to 16

Challenge Level

Vedic Sutra is one of many ancient Indian sutras which involves a
cross subtraction method. Can you give a good explanation of WHY it
works?

##### Age 7 to 14

Challenge Level

Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?

##### Age 11 to 14

Challenge Level

When the number x 1 x x x is multiplied by 417 this gives the
answer 9 x x x 0 5 7. Find the missing digits, each of which is
represented by an "x" .

##### Age 11 to 14

Challenge Level

The number 10112359550561797752808988764044943820224719 is called a
'slippy number' because, when the last digit 9 is moved to the
front, the new number produced is the slippy number multiplied by
9.

##### Age 5 to 14

Read this article to find out the mathematical method for working out what day of the week each particular date fell on back as far as 1700.

##### Age 11 to 14

Challenge Level

Countries from across the world competed in a sports tournament. Can you devise an efficient strategy to work out the order in which they finished?

##### Age 14 to 18

Challenge Level

How can you quickly sort a suit of cards in order from Ace to King?

##### Age 11 to 16

Scheduling games is a little more challenging than one might desire. Here are some tournament formats that sport schedulers use.