**Today’s Challenge**

Carry out the following 15-step number trail – with no calculator!

Start with 20, then:

+1 ÷3 ×5 –7 +2 ÷6 +4 –1 ×3 ÷4 +4 –5 ×1 +3 ×6 = **?**

What is your final answer?

**The**** 7puzzle Challenge**

The playing board of **the 7puzzle game** is a 7-by-7 grid of 49 different numbers, ranging from **2 **up to **84**.

The 2nd & 3rd rows contain the following fourteen numbers:

8 13 17 25 28 36 42 45 48 55 63 64 66 80

Which three different numbers have a sum of 100?

**Make 81 Challenge**

Can you arrive at 81 by inserting 2, 3, 6 and 9 into the gaps on each line?

- ◯×◯×◯÷◯ = 81
- ◯²×◯×◯÷◯ = 81
- ◯²+◯×(◯+◯) = 81

**Answers **can be found **here**.

**Click Paul Godding for details of online maths tuition. Wherever you are in the world, please get in touch.**