This worries me, why would schools not have CDs to print worksheets off or books to photocopy?
Have you seen the price of resource CDs and their annual license fees? Photocopying is not a low cost option. If your daughter is ten years old then she will be in a primary school whose budget is stretched with core provisions never mind paying exorbitant licensing fees for resource CDs which have the self same questions that are available for free of the Internet.
It's great that you made your daughter do the homework without the answer sheets at her disposal and I'd not lose sleep over those whose access to the 'easy option' ins unfettered. They will reap the rewards of their idleness in examinations where there no answer sheets to copy from.
Comparing past and present practises is futile. Kids are living in an information age and it's normal for kids to look for answers on the Internet when doing homework. The answers to maths problems rarely show how they are achieved and it would show up in the submitted work through lack of evidence of any working out.
Furthermore the bulk of learning and assessment takes place under teacher scrutiny in the classroom and homeworks tend to be reinforcement exercises.
I really don't see any grounds for getting annoyed.
