These nursery maths worksheets look really useful — matching shapes, counting, filling in missing numbers, etc. They’re great for little ones to build comfort with numbers in fun ways.
I’ve been using a tool called TestGenie lately, which also offers maths worksheet for students tailored to class/age level. What I like is you can pick difficulty, get instant worksheets, and most have answer keys. It’s helpful for parents/teachers who don’t want to re-invent the wheel.