** The Main Challenge**

If you wrote down all single-digit numbers and numbers that are factors of **80**, how many different numbers would be on your list?

**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 1st & 6th rows contain the following fourteen numbers:

2 5 9 12 14 15 18 20 22 33 40 49 56 72

As well as 2+12 (=14), can you find the other SEVEN pairs of numbers whose sum is also listed?

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

**The Mathematically Possible Challenge**

Using **2**, **7** and **10 **once each, with + – × ÷ available, which are the only THREE numbers it is possible to make from the list below?

9 18 27 36 45 54 63 72 81 90

#*9TimesTable*

**The Target**** Challenge**

Can you arrive at **281** by inserting **1**, **2**, **3**, **4** and **5** into the gaps below?

- (◯³+◯²)×(◯–◯)+◯² = 281

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

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