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