Mathematics / Year 1 / Number and Algebra / Number and place value

Curriculum content descriptions

Count collections to 100 by partitioning numbers using place value (ACMNA014)

Elaborations
  • understanding partitioning of numbers and the importance of grouping in tens
  • understanding two-digit numbers as comprised of tens and ones/units
General capabilities
  • Numeracy Numeracy
ScOT terms

Place value,  Counting,  Associativity

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Image

Chinese abacus, c1900

This is a rectangular wooden abacus (15.5 cm x 29 cm x 2.5 cm), made in about 1900. It has two decks (divided horizontally by the beam) of 13 rods inserted vertically in the frame. On the bottom deck there are five wooden beads on each rod and on the top deck there are two beads on each rod. The abacus has a removable wooden ...