TThe Sum practice series was published alongside the “3 out of 6 = ½” Multi cache. It now comprises a short trail of 3 caches between two historically significant sites, the famous Stanley Ferry Aqueduct (see link for more) and the Newland estate (see link for more), which has a long history dating back to the Bronze Age. As well as providing an interesting walk in its own right, this series is designed to give you sum simple practice (and a big hint) to help solve the much more difficult sums involved in the Multi cache.
Not all caches in the series have a pencil so bring your own.
The walk is not dangerous in itself but does involve a short walk on a road without a proper pavement, walking near a canal and a river, walking near derelict buildings and, depending on the weather and time of year, walking on some slippy muddy paths. As such be mindful of young ones and wear appropriate footwear.
You can do the sums for this series at your leisure in the warmth of your own home and check your answer in the hint. Although the hint confirms the answer to the sum, it is of no use at all to you as there is no longer a bonus in the series!! However the nature of the sums might make you realise that the multi cache might not be as difficult as you first think!
Sum practice 2 is a now black turtle container.
If A=2 and B=72 what is C?
B² + 4a – 1 -√B = C