The cost of a Transum Mathematics subscription in British pounds is fixed and guaranteed not to change from now until at least 8 Dec 2020 however the cost in other currencies is subject to exchange rate fluctuations.
And here is a video showing what membership includes.
I agree to the
terms and conditions shown below:
ready to pay the annual fee of £69 through Paypal (using
my balance or credit card);
I am ready
to pay the annual fee of £69 with a credit card via
* The fields marked with an asterisk are needed,
the other fields are optional.