Ten questions drawn from a year of everyday maths and science. No sign-up, nothing saved, and the questions change every time. Every question carries the numbers it needs, so nothing has to be remembered.
Everyday Knowhow is one small piece of knowhow a day, with the sum you run on your own numbers: three editions of 365 days each: Home & Life, Numbers & Mental Arithmetic, and Sport. Week 1 of every edition is free to read, with no account: start here.