**The Main Challenge**

All the following 3-digit numbers are divisible by 3, except one. Which is the odd one out?

102 111 117 126 132 139 144 153 162 168 174 180

**T****he**** 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 3rd & 7th rows contain the following fourteen numbers:

4 11 13 24 25 27 30 36 42 45 66 70 77 80

What is the highest multiple of 9 on this list?

**T****he Factors Challenge**

**The Mathematically Possible Challenge**

Based on our best-selling arithmetic board game.

Using **5**, **8** and **11 **once each, with + – × ÷ available, which is the ONLY number it is possible to make from the list below?

80 81 82 83 84 85 86 87 88 89

#*NumbersIn80s*

**The Target**** Challenge**

Can you arrive at **260** by inserting **1**, **2**, **3**, **4** and **5** into the gaps on each line?

- (◯³–◯)×◯×◯÷◯ = 260
- (◯+◯)²×(◯+◯)+◯³ = 260

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

**Click Paul Godding for details of online maths tuition.**