You may also like

problem icon

Prompt Cards

These two group activities use mathematical reasoning - one is numerical, one geometric.

problem icon

Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

problem icon

Exploring Wild & Wonderful Number Patterns

EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.

Clever Keys

Stage: 2 Short Challenge Level: Challenge Level:1

Joshua from Brooklands Primary, Suffolk says:

I found that $2$ divided $2$ was $1$ (which gave me an odd number).
Hence $2\div2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 15$

Josh from Ampthill, Bedfordshire also got that answer, as well as:

$2 \times2 \times2 \times2 \times2 = 32$, then $32-2 = 30$, then divided by $2$ gives $15$
and
$2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 30$ divided by $2$ to give $15$.

Luke and William from Essex sent very similar solutions to Joshua.