Resources may or may not have answer sheets. This depends on whether the contributor provided answers and/or whether I (Maggie Harnew) have time to produce them.
In 2017 I introduced restricted answer sheets, particularly when it takes a lot of time and effort to produce the answers (many sheets also include detailed Reformed Functional Skills mapping). All site contributors are entitled to request restricted answer sheets. It's my way of saying 'thank you' and also encouraging new people to share resources.