**The Main Challenge**

From the following list of numbers:

12 14 18 21 25 28 30 33 35 36 40 42 44 48 54 55 56

find the ONLY number remaining when you eliminate multiples of **3**, **5** and **7**.

**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 sum of the multiples of 4?

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

Which is the ONLY number below that is a factor of **259**?

3 5 7 9 11 13

[ *Today’s Hint: Use the ‘bus stop’ method of division to see which of the above numbers divide exactly into 259 *]

**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?

50 51 52 53 54 55 56 57 58 59

#*NumbersIn50s*

**The Target**** Challenge**

Can you arrive at **259** by inserting **1**, **3**, **5**, **7** and **9** into the gaps below?

- (◯+◯)²+√(◯+◯+◯) = 259

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

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