This mathematical series of puzzle caches has questions from all levels of school education, from Key Stage 1 (age 5-7) in the first few caches, all the way up to Further Maths A-Level in the last few caches. Everybody should be able to get the solutions to the first few caches, but how far through the series will you be able to get? For a full description of the series, please see the first cache “1+1=1”. If you can’t solve a particular set of questions, try asking somebody of the appropriate age, or your friendly neighbourhood Maths teacher!
Please note that many of the caches are hidden near busy roads, so please take care when finding them, especially if you have children with you. It is worth noting that there is parking possible within a few hundred metres of all caches and a quick look on a satellite view map should show suitable places.
This bonus cache contains questions from the Key Stages 1 & 2 caches, suitable for ages 5 - 11, school years 1 - 6.
1. From 1+1=1. a= Find half of 38 and then take away 10.
2. From 1+1=2. 5 x 8 = 10 x b.
3. From 1+1=3. There are 35 children ready to play a game. They are sitting in teams of 5. c = the number of teams.
4. From 1+1=4. A banana costs 10p more than an apple. Abi bought two bananas and two apples and the total price was £1. What is the cost of a banana? D= the sum of the digits in your answer.
5. From 1+1=5. e= the number of factors of 180 that are between 25 and 100.
6. From 1+1=6. Which three prime numbers multiply together to make 231? F=the sum of the three prime numbers.
The cache can be found at N50 45.PQR E0 14.STU where P=C+1, Q=C-B-D, R=E+1, S=A-E, T=F-A-C+1, U=A+C-10
You can check your answers for this puzzle on GeoChecker.com.