Mathematics / Year 4 / Number and Algebra / Patterns and algebra

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Curriculum content descriptions

Find unknown quantities in number sentences involving addition and subtraction and identify equivalent number sentences involving addition and subtraction (ACMNA083)

Elaborations
  • writing number sentences to represent and answer questions such as: ‘When a number is added to 23 the answer is the same as 57 minus 19. What is the number?’
  • using partitioning to find unknown quantities in number sentences
General capabilities
  • Numeracy Numeracy
ScOT terms

Subtraction,  Addition,  Mathematical expressions

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1 direct match to ACMNA083 | 9 other related resources

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

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Wishball: hundredths

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Test your understanding of decimal place value with numbers that include hundredths. Receive a starting number, such as 46.87, and work towards turning it into a target number, such as 85.32. Spin a random digit, choose its decimal place value and decide whether to add or subtract the random digit from your starting number. ...

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These seven learning activities, which focus on 'open-ended tasks' using a variety of tools (software) and devices (hardware), illustrate the ways in which content, pedagogy and technology can be successfully and effectively integrated in order to promote learning. In the activities, teachers use investigations in order ...

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The take-away bar: go figure

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This tutorial is suitable for use with a screen reader. It explains strategies for solving subtractions in your head such as 87-39. Work through sample questions and instructions explaining how to use linear partitioning techniques. Solve subtractions by breaking them up into parts that are easy to work with, work out each ...

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TIMES Module 2: Number and Algebra: addition and subtraction - teacher guide

  • TLF-IDM008811

This is a 29-page guide for teachers. The module introduces addition and subtraction of whole numbers.

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TIMES Module 8: Number and Algebra: subtraction of whole numbers - teacher guide

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This is a 16-page guide for teachers. This module continues the consideration of whole numbers.

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TIMES Module 7: Number and Algebra: addition of whole numbers - teacher guide

  • TLF-IDM008816

This is a 16-page guide for teachers. This module introduces addition of whole numbers.

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Sites2See – number for primary

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

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Summing Decimals

  • TLF-IDM016558

An interactive resource in which students learn how to add and subtract numbers that have up to two decimal places.

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Interactive

Sushi monster - iTunes app

  • TLF-IDM019681

The Sushi monster needs to be fed the correct sum or product. Choose to play the addition or multipliaction game. In the addition game select the two numbers that make the target sum. In the multipication game select two numbers to make the target product. This game has several levels. Free when reviewed on 12/5/2015.

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