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Listed under:  Number operations  >  Accuracy and precision
Video

Rounding whole numbers: 2

  • TLF-IDM011490

This is a video demonstration of rounding a whole number to the nearest thousand. In the commentary, the presenter explains the thinking behind the process of rounding such numbers and presents a visual representation of rounding whole numbers using a number line. Practice questions with answers are included, and hints ...

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Audio

Ian Ritchie describes the launch of the Blue Streak, 2006

  • TLF-IDR8848

This is an edited sound recording of Ian Ritchie recalling the first launch of a Europa Blue Streak rocket from the Woomera rocket range in South Australia on 5 June 1964. Ritchie, an engine technician at the range, tells of the noise at lift-off and how the first flight of the rocket was cut short. The recording was made ...

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Audio

Bob Brown recalls the launch of the Blue Streak, 2006

  • TLF-IDR8846

This is an edited sound recording of Bob Brown recalling the excitement in Woomera in South Australia at the intended first launch of a Europa Blue Streak rocket from the nearby rocket range in June 1964. He tells how hundreds of families gathered to watch, only to be let down when the launch was cancelled with just seconds ...

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Online

Comparing fractions: strategies: assessment: teacher guide

  • TLF-IDR11075

Use this resource with 'Comparing fractions: strategies: assessment' (L9771). First, see a profile of that assessment object, which gives you some helpful background information. Then follow clear guidelines on the interpretation of student input related to comparing fractions and deciding which pair of fractions is larger, ...

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Interactive

Wishball: hundreds

  • TLF-IDL8456

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 ...

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Interactive

Wishball challenge: hundreds

  • TLF-IDL8457

Challenge your understanding of place value in whole numbers up to 999. Receive a starting number, such as 328, and work towards turning it into a target number, such as 177, within 20 turns. Spin a random digit, choose its decimal place value and use the given operation (either addition or subtraction) on your starting ...

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Interactive

Wishball challenge: tens

  • TLF-IDL8459

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. ...

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Interactive

Wishball challenge: whole numbers

  • TLF-IDL871

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 ...

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Audio

Andy Thomas describes his first flight into space, 2008

  • TLF-IDR9901

This is an edited sound recording of Australian astronaut Andy Thomas talking about his first flight into space in May 1996. Thomas describes the experience of taking off aboard the US space shuttle Endeavour, and how he was able to look down from space on the city of his birth, Adelaide, at night. He also describes how ...

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Online

Comparing fractions: assessment: teacher guide

  • TLF-IDR9721

Use this resource with 'Comparing fractions: assessment' (L7736). First, see a profile of that assessment object, which gives you some helpful background information. Then follow clear guidelines on the interpretation of student input related to comparing fractions and deciding which pair of fractions is larger, or if they ...

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Interactive

Whole numbers level 5: four-digit numbers

  • TLF-IDM009391

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 ...

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Interactive

The foul food maker: go figure

  • TLF-IDL215

This tutorial is suitable for use with a screen reader. It explains how the use of simple words can describe the likelihood of everyday events. How likely is an event: certain, likely, equal chance, unlikely or certainly not? Answer some questions using these words and then build your own examples. Learn how to describe ...

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