**The Main Challenge**

. . . involves number combinations and addition, both necessary to master if players are to successfully complete the fabulous *Kakuro* puzzle.

As well as 9+8+7+1 (or 9871), list the five other ways of making **25** when adding together FOUR unique digits from **1-9**.

**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 2nd column contains the following seven numbers:

2 10 16 33 45 48 70

Using these seven numbers exactly once each, with + – × ÷ available to use in your calculation, can you arrive at the target number of **100**?

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

**The Mathematically Possible Challenge**

Using **4**, **8** and **12 **once each, with + – × ÷ available, which are the only TWO numbers it is possible to make from the list below?

7 14 21 28 35 42 49 56 63 70

#*7TimesTable*

**The Target Challenge**

Can you arrive at **359** by inserting **2**, **4**, **6**, **8** and **10** into the gaps below?

- (◯²×◯)–(◯×◯)÷◯ = 359

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

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