Lower Secondary Big Button Page

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Short Problem Showcase

Did you know we have a huge archive of short problems?

We have decide to feature some of our favourites, and if this whets your appetite, check out the full collection.
Equal Means link

Equal Means live

Stage: 3 Short Challenge Level: Challenge Level:2 Challenge Level:2

Weekly Problem 36 - 2017
What value of x makes the mean of the first three numbers in this list equal to the mean of the other four?

Red Card Blue Card link

Red Card Blue Card live

Stage: 3 Short Challenge Level: Challenge Level:2 Challenge Level:2

Can you arrange the red and blue cards so that the rules are all followed?

Common Remainder link

Common Remainder live

Stage: 3 Short Challenge Level: Challenge Level:2 Challenge Level:2

Weekly Problem 35 - 2017
144 divided by n leaves a remainder of 11. 220 divided by n also leaves a remainder of 11. What is n?

Magic 7 link

Magic 7 live

Stage: 3 Short Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Weekly Problem 36 - 2015
Can you complete this magic square with the numbers from 7 to 15?

Trapezium Arch link

Trapezium Arch live

Stage: 3 Short Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Weekly Problem 27 - 2007
Ten stones form an arch. What is the size of the smallest angles of the trapezoidal stones?