Every game starts with Australian Curriculum ACMNA, not a worksheet dump
We build free number games for Australian primary kids. Each one practises a skill described in the Number and Algebra strand, under the old ACMNA codes in Version 8.4 and the AC9M codes schools use now. No child login, no American spelling, no imported worksheets.
02 — Chapter one
What ACMNA actually means on a planning sheet
If you have ever opened a school program and found a wall of codes, this is the short version, written by the people who build the games rather than by a publisher.
ACMNA is a content description code from Version 8.4 of the Australian Curriculum. AC means Australian Curriculum, M means Mathematics, and NA means the Number and Algebra strand. Every skill in that strand has its own code, and those codes are what older planning documents and handover folders were built around.
Version 9.0 rearranged the same subject. Number and Algebra became two separate strands, alongside Measurement, Space, Statistics and Probability, and the codes now read AC9M followed by the year level and a strand letter. AC9M3N03 is a Year 3 Number description. AC9M6A02 is a Year 6 Algebra one. ACARA publishes both versions, including a Foundation to Year 6 sequence of content for Version 8.4 and a Mathematics learning area page for Version 9.0.
We write our games against the skill, then label it with both naming systems. That way a teacher still planning from an older scope and sequence and a teacher working from a current program can both find the same addition game without guessing.
One thing we will never do is dress this up. This is an independent practice site. We are not an ACARA product, we are not endorsed by ACARA, and there is no approval badge on this page because there is no approval to claim. What we can show you is the mapping, in full, so you can check it against the published curriculum yourself.
03 — Chapter two
Ten minutes of number practice, at school and at home
Short sessions with instant feedback, set to Easy, Medium or Hard so a mixed ability class can all start at once. This is what that looks like in the rooms our games are used in.

A game is only useful to a teacher if they can point at it and say which content description it covers. So we put the code on the page, in public, where anyone can check it against the curriculum.
Chapter three
Version 8.4 ACMNA and Version 9.0 AC9M, side by side
Two naming systems, one set of number skills. Read across a row to see how the same practice is described in the document you happen to be holding.
Tell us the year level and we will point you at the right games
Send us the year your child is in, or the strand your class is working on this term, and we will reply with the games that match and the codes they sit under. If you are a school, ask us about a membership for the whole staff.