** The Main Challenge**

Here is a number puzzle similar in concept to my **FlagMath** card game. Many schools are now playing the various editions, so here’s a taster:

Each of the eight letters, **A-H**, in the two sections contain a calculation with an answer in the **20’s**:

- Section 1

B:84÷4 G:29–6 C:35–15 D:14+10 A:5×5 H:72÷3 E:7×4 F:16+11

- Section 2

H:15+12 B:34–8 F:9×3 E:48÷2 C:11×2 G:60÷3 A:17+12 D:40–15

Which is the only letter that has the SAME answer in BOTH sections?

**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 1st & 2nd columns contain the following fourteen numbers:

2 10 13 16 21 22 27 33 45 48 55 56 60 70

How many of the above become prime numbers when 10 is added to them?

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

**The Mathematically Possible Challenge**

Using **4**, **7** and **11 **once each, with + – × ÷ available, which are the THREE numbers it is possible to make from the list below?

30 31 32 33 34 35 36 37 38 39

#*NumbersIn30s*

**The Target Challenge**

Can you arrive at **317** by inserting **7**, **8**, **9**, **10** and **11** into the gaps below?

- ◯×◯×√◯+◯×◯ = 317

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

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