** The Main Challenge**

One to test your basic adding skills. What is the sum of all twenty-two individual digits when listing all whole numbers from **10-20 inclusive**?

**The 7puzzle Challenge**

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

The 6th & 7th rows contain the following fourteen numbers:

4 5 11 12 18 20 24 27 30 33 49 56 70 77

What is the difference between the two square numbers?

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

**The Mathematically Possible Challenge**

Using **3**, **8** and **10 **once each, with + – × ÷ available, which are the only THREE numbers it is possible to make from the list below?

11 22 33 44 55 66 77 88 99 110

#*11TimesTable*

**The Target**** ****Challenge**

Can you arrive at **304** by inserting **1**, **2**, **3**, **4** and **5** into the gaps below?

- ◯⁵+◯⁴+◯³–double◯–◯ = 304

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

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