# Mathematics / Year 4 / Number and Algebra / Number and place value

Curriculum content descriptions

Recognise, represent and order numbers to at least tens of thousands (ACMNA072)

Elaborations
• reproducing five-digit numbers in words using their numerical representations, and vice versa
General capabilities
• Literacy Literacy
• Numeracy Numeracy
ScOT terms

Positive integers,  Numerical order

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Year level 3-4
Resource type
Learning area Mathematics

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### Sites2See – number for primary

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

### Wishball: whole numbers

Test your understanding of decimal place value with whole numbers. Receive a starting number, such as 3786, and work towards turning it into a target number, such as 7664. Spin a random digit, choose its decimal place value and decide whether to add or subtract the random digit from your starting number. You can use a 'Wishball' ...

### Wishball challenge: whole numbers

Test your understanding of decimal place value with whole numbers. Receive a starting number, such as 3786, and work towards turning it into a target number, 7664. Spin a random digit, choose its decimal place value and use the given operation (either addition or subtraction) on your starting number. Be careful not to overshoot ...

### Whole numbers level 6: numbers to 10 000

This set of online activities focuses on the development and consolidation of number concepts to 10 000 and beyond. This is the sixth of seven levels in a series focusing on whole numbers to six digits. This level develops ideas about place value and number notation and introduces negative numbers. Each level includes interactive ...

Test your number skills with these maths challenges! They are all about place value.

### MoneySmart: Money and people

This learning object introduces students to currencies around the world. Students ask questions of children around the world to find out about their currency, how much they pay for similar items, what they save money for and how they earn it. Students can then set up their own profile to record information about Australian ...

### MoneySmart: Money maps

This learning object helps students to explore the history of currency including bartering, the development of cash systems, and the arrival of cards and ATMs, both in Australia and around the world. It provides an interactive time line which spans the development of currency around the globe from 9000BCE to today, and ...

### Scale matters: tens of thousands

Explore the use of scale on a number line. Select a ruler displaying a helpful scale such as tens of thousands. Look at a pair of numbers such as 70,000 and 120,000 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. ...

### Which number is bigger?

Need some tips to help you work out if one large number is bigger than another? See how to use the value of thousands or hundreds of thousands in large numbers. Find out how to use 'less than' and 'greater than' symbols.

### Hopper: whole numbers

Help a frog to jump along a number line. Estimate the finishing point on a number line, after adding or subtracting multiples of whole numbers to a starting number. For example, 255+(10 x 4) = 295. Explore the patterns made on a counting grid and number line. Identify counting rules that match the pattern of 'landing spots' ...

### Whole numbers level 7: six-digit numbers

This set of online activities focuses on the development and consolidation of number concepts to six digits and beyond. The complete set of activities consists of seven levels in a series focusing on whole numbers to six digits. This is the seventh level and contains ideas about place value, rounding and number notation ...

### The multiplier: generate easy multiplications

Solve multiplications such as 9x88. Use a partitioning tool to help solve randomly generated multiplications. Learn strategies to do complex arithmetic in your head. Split a multiplication into parts that are easy to work with, use simple times tables, then solve the original calculation. This learning object is one in ...

### The multiplier: make your own easy multiplications

Solve multiplications such as 76x9. Use a partitioning tool to help solve your own multiplications. Learn strategies to do complex arithmetic in your head. Split a multiplication into parts that are easy to work with, use simple times tables, then solve the original calculation. This learning object is one in a series of ...

### Exploring number patterns

Find an addition or subtraction pattern relating to four numbers on a grid. Predict the next three numbers in the pattern. For example, predict the next three numbers in the following sequence: 60, 53, 46, 39...

### Addition and subtraction level 5

This set of online activities focuses on the development and consolidation of ideas associated with addition and subtraction of whole numbers from concrete contexts to abstract settings including written algorithms to four digits. This is the fifth of seven levels in a series that progresses to addition and subtraction ...

### Addition and subtraction level 6: mental strategies

This set of online activities focuses on the development and consolidation of ideas associated with addition and subtraction of whole numbers from concrete contexts to abstract settings including written algorithms to five digits. This is the sixth of seven levels in a series that progresses to addition and subtraction ...

### Whole numbers level 5: four-digit numbers

This set of online activities focuses on the development and consolidation of number concepts to four digits and beyond. This is the fifth of seven levels in a series focusing on whole numbers to six digits. This level develops ideas about place value, rounding and number notation. Each level includes interactive drills ...

### The multiplier: go figure

This tutorial is suitable for use with a screen reader. It explains strategies for solving complex multiplications in your head such as 22x38. Work through sample questions and instructions explaining how to use partitioning techniques. Solve multiplications by breaking them up into parts that are easy to work with, use ...

### 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 ...

### Top drawer teachers: fractions

This is a web page that comprehensively covers the teaching of the conceptual understanding of fractions through links to six sections. The first section covers the ‘Big ideas’ behind fractions, while the second section uses research findings to identify some common misunderstandings when learning fractions. The third explores ...