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Place value: numbers to 20, 50 and 100

This guide provides a sequence of steps for building place value understanding, from exploring two-digit numbers in terms of their parts through to fostering reasoning and problem-solving with worded problems.

Additional details
Year level(s)	Year 1, Year 2
Audience	Teacher
Purpose	Teaching resource, Teaching strategies
Format	Downloadable resources
Teaching strategies and pedagogical approaches	Questioning, Concrete Representational Abstract model, Explicit teaching
Keywords	place value, place value chart, base 10, counting, comparing numbers, ordering numbers, skip-counting, number line, ten frame, reasoning, problem-solving, explicit teaching
Curriculum alignment
Curriculum connections	Numeracy
Strand and focus	Number, Build understanding
Topics	Addition and subtraction, Place value
AC: Mathematics content descriptions	ACMNA012 Develop confidence with number sequences to and from 100 by ones from any starting point. Skip count by twos, fives and tens starting from zero ACMNA013 Recognise, model, read, write and order numbers to at least 100. Locate these numbers on a number line ACMNA014 Count collections to 100 by partitioning numbers using place value ACMNA015 Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts ACMNA026 Investigate number sequences, initially those increasing and decreasing by twos, threes, fives and tens from any starting point, then moving to other sequences ACMNA030 Solve simple addition and subtraction problems using a range of efficient mental and written strategies
National numeracy learning progression	Additive strategies - AdS6, AdS7 Quantifying numbers - QuN5, QuN6, QuN7 Multiplicative strategies - MuS3, MuS2, MuS4
Copyright details
Organisation	White Rose Maths
Copyright	© 2021 White Rose Maths. Free-for-education material.