Secondary Poster Problems for Summer 2020

We have a challenge a day for you throughout the summer break...

Each weekday from 20 July to 28 August, a new poster problem will appear on this page.

After you've had a go at the day's problem you can compare your approach to the solutions we have published, which are based on students' work. If you particularly enjoy one of the challenges and would like to explore further, you can follow the link to the original problem on which the poster is based.

You can find the Primary Poster Problems here.

Partly Painted Cube Poster

Age 11 to 14
Challenge Level

Day 30 challenge

Multiplication Square Poster

Age 11 to 14
Challenge Level

Day 29 challenge

Special Numbers Poster

Age 11 to 14
Challenge Level

Day 28 challenge

American Billions Poster

Age 11 to 14
Challenge Level

Day 27 challenge

Curvy Areas Poster

Age 14 to 16
Challenge Level

Day 26 challenge

How Old Am I? Poster

Age 14 to 16
Challenge Level

Day 25 challenge

Gabriel's Problem Posters

Age 11 to 16
Challenge Level

Day 24 challenge

Cuboid Challenge Poster

Age 11 to 14
Challenge Level

Day 23 challenge

Mystic Rose Poster

Age 11 to 14
Challenge Level

Day 22 challenge

Dozens Poster

Age 11 to 14
Challenge Level

Day 21 challenge

Tourism Poster

Age 11 to 14
Challenge Level

Day 20 challenge

Can They Be Equal? Poster

Age 11 to 14
Challenge Level

Day 19 challenge

Take Three from Five Poster

Age 11 to 14
Challenge Level

Day 18 challenge

Consecutive Sums Poster

Age 11 to 14
Challenge Level

Day 17 challenge

Temperature Poster

Age 11 to 14
Challenge Level

Day 16 challenge

Peaches Today, Peaches Tomorrow Poster

Age 11 to 16
Challenge Level

Day 15 challenge

Two and Two Poster

Age 7 to 14
Challenge Level

Day 14 challenge

1 Step, 2 Step Poster

Age 11 to 14
Challenge Level

Day 13 challenge

Keep Your Distance Poster

Age 11 to 14
Challenge Level

Day 12 challenge

Three Fruits Poster

Age 11 to 14
Challenge Level

Day 11 challenge

Marbles in A Box Poster

Age 11 to 14
Challenge Level

Day 10 challenge

Route to Infinity Poster

Age 11 to 14
Challenge Level

Day 9 challenge

Cuboids Poster

Age 11 to 14
Challenge Level

Day 8 challenge

Mixing Lemonade Poster

Age 11 to 14
Challenge Level

Day 7 challenge

Pair Products Poster

Age 11 to 14
Challenge Level

Day 6 challenge

Pick's Theorem Poster

Age 11 to 14
Challenge Level

Day 5 challenge

Got it Poster

Age 7 to 14
Challenge Level

Day 4 challenge

Think of Two Numbers Poster

Age 11 to 14
Challenge Level

Day 3 challenge

Squares in Rectangles Poster

Age 11 to 14
Challenge Level

Day 2 challenge

Arithmagons Poster

Age 11 to 14
Challenge Level

Day 1 challenge