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Group, partition and rearrange collections up to 1000 in hundreds, tens and ones to facilitate more efficient counting (ACMNA028)

- using an abacus to model and represent numbers
- understanding three-digit numbers as comprised of hundreds, tens and ones/units
- demonstrating and using models such as linking blocks, sticks in bundles, place-value blocks and Aboriginal bead strings and explaining reasoning

Place value, Counting, Associativity