Mathematics / Year 2 / Number and Algebra / Number and place value

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Recognise, model, represent and order numbers to at least 1000 (ACMNA027)

Elaborations
  • recognising there are different ways of representing numbers and identifying patterns going beyond 100
  • developing fluency with writing numbers in meaningful contexts
General capabilities
  • Literacy Literacy
  • Numeracy Numeracy
ScOT terms

Number lines,  Positive integers,  Numerical order

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Year level F-2
Resource type
Learning area Mathematics
Tablet friendly (Interactive resource)

Number trains

Arrange train carriages according to numbers on their sides. The numbers are represented in a range of formats such as words, numerals, dice dots or counting frames. Identify the numbers that come before and after starting numbers. Begin with numbers up to ten. Move on to work with larger numbers such as 40 and 50. Practise ...

Interactive Resource

Sites2See – number for primary

Selected links to a range of interactive online resources for the study of number in Foundation to Year 6 Mathematics.

Assessment resource

Scale matters: whole numbers: assessment

Test what you know about placing numbers on a number line. See two numbers on a line. Choose the best ruler to add markers to the number line and find the place for a third number. Rename the third number in two different ways by selecting the correct place values. For example, look at the numbers 35 and 47 on a number ...

Interactive Resource

Hundreds, tens and units

This is an interactive resource that represents numbers visually as groups of hundreds, tens and units. It can be used to count numbers by partitioning them based on place value, or to represent numbers by building them from grids of hundreds, tens and units. The numerals matching the visual representations can be visible ...

Interactive resource

Number trains: numbers 30–50

Arrange train carriages according to numbers on their sides. The numbers are represented in a range of formats such as words, numerals, base-10 blocks or counting frames. Identify the numbers that come before and after starting numbers. Work with numbers in the range 30–50. This learning object is the third in a series ...

Interactive resource

Number trains: numbers 90–120

Arrange train carriages according to numbers on their sides. Identify the numbers that come before and after starting numbers. Work with numbers in the range 90–120. For example, arrange four carriages into the order 98, 99, 100, 101. This learning object is the fourth in a series of five objects that progressively increase ...

Interactive resource

Scale matters: hundreds

Explore the use of scale on a number line. Select a ruler displaying a helpful scale such as hundreds. Look at a pair of numbers such as 900 and 1200 marked on a number line. Identify the number corresponding to another point. Or locate another point on the number line to complete a series of three numbers. Apply a marked ...

Teacher resource

reSolve: Authentic Problems: What's For Lunch?

This sequence of four lessons invites students to investigate how many of a chosen food item are eaten at their school in a year. Students identify the mathematical knowledge they need to find how many of the selected items they eat in a year and devise a plan to find the total number, using grouping, partitioning and repeated ...

Interactive resource

Scale matters: simple units

Explore the use of scale on a number line. Select a ruler displaying a helpful scale such as ones, tens or hundreds. Look at a pair of numbers such as 900 and 1200 marked on a number line. Identify the number corresponding to another point. Or locate another point on the number line to complete a series of three numbers. ...

Teacher resource

MoneySmart: Kieren's coin

This is a year 2 mathematics unit of work about money. The unit is intended to take about 10 hours of teaching and learning time. It consists of 11 student activities supported by teacher notes on curriculum, pedagogy and assessment. Student activities include responding to a story about a rare foreign coin, interacting ...

Teacher resource

reSolve: Place Value Cards

This sequence of two lessons explores the multiplicative place value properties of numbers. Students learn to represent numbers up to 1000 as multiples of 100s, 10s and 1s. Students skip count according to random arrangements of place value cards and explore whether the order of the cards affects the totals. They then use ...

Interactive resource

Scale matters: tens

Explore the use of scale on a number line. Select a ruler displaying a helpful scale such as tens. Look at a pair of numbers such as 90 and 120 marked on a number line. Identify the number corresponding to another point. Or locate another point on the number line to complete a series of three numbers. Apply a marked scale ...

Interactive Resource

Number pieces

This iPad app is a mathematical tool in which number pieces (ones, tens, and hundreds) can be manipulated to: represent multi-digit numbers; partition, group and rearrange them; and carry out basic number operations. Individual pieces can be rotated 90 degrees; pieces and groups can be coloured yellow, green or red; and ...

Interactive resource

Wishball: tens

Test your understanding of place value in two-digit numbers. Start with a two-digit whole number such as 57. A spinner provides a randomly generated digit. Choose its place value and add it to (or subtract it from) your starting number. Work towards a given target number, for example 12, using other digits. You can choose ...

Tablet friendly (Interactive resource)

Wishball challenge: tens

Challenge your understanding of place value in whole numbers up to 99. Receive a starting number, such as 86, and work towards turning it into a target number, such as 18, within 20 turns. Spin a random digit, choose its decimal place value and use the given operation (either addition or subtraction) on your starting number. ...

Interactive resource

Counting beetles: making word problems

Make a word problem using beetles. First, decide whether to add or subtract. Select the number of beetles for your problem. Use the number line to show how to solve the problem. Watch an animation of the problem on a number line. Make a number sentence to match the number line. This learning object is one in a series of ...

Tablet friendly (Interactive resource)

Musical number patterns: music maker

Make some music by building up rhythms for four instruments. Choose a starting point on a number line and build a counting rule. Count in lots between 2 and 10 until you reach 36. Add your number several times on the number line to make a pattern. For example, set up a sound pattern where a trumpet waits on the first note, ...

Interactive resource

Number trains: skip counting

Arrange train carriages according to numbers on their sides. Identify the numbers that come before and after starting numbers. Work with numbers in the range 1–120. Practise 'skip counting' by twos, fives and tens. For example, 'skip count' by five to arrange four carriages into the order 12, 17, 22, 27. This learning object ...

Interactive resource

Counting beetles: solving word problems

Look at a word problem that uses beetles. Use the number line to show how to solve the problem. Watch an animation of the problem on a number line. Make a number sentence to match the number line. This learning object is one in a series of five objects. Three objects in the series are also packaged as a combined learning object.

Tablet friendly (Interactive resource)

Wishball: hundreds

Test your understanding of place value with three-digit numbers. Start with a three-digit whole number such as 507. A spinner provides a randomly generated digit. Choose its place value and add it to (or subtract it from) your starting number. Work towards a given target number, say 539, using other digits. You can choose ...

Assessment resource

Number trains: patterns: assessment

Test your understanding of numbers and order them to create patterns. Arrange train carriages according to numbers on their sides to form patterns. For example, count in fives to arrange four carriages into the sequence 12, 17, 22, 27. Identify the numbers that come before and after starting numbers. Work with numbers in ...

Interactive resource

The array: go figure

This tutorial is suitable for use with a screen reader. It explains strategies for solving simple multiplications in your head such as 6x4. Work through sample questions and instructions explaining how to break up numbers into their factors. Solve multiplications by using arrays to break them up into rows and columns, then ...

Collection

Mixed-Up Maths

Join our host, Ed, as he finds himself in all types of situations where only his knowledge of Maths can help him. From saving the planet from Aliens, to creating a superhero that can stop a strawberry milkshake tidal wave. From searching for buried treasure, to jumping like a daredevil, or planning the greatest circus party ...