This sub-collection of resources from the Virtual Text Book collection contains eighteen resources designed for use on an interactive whiteboard to aid the teaching and learning of a variety of ‘Number’ topics. Each resource is an interactive excel worksheet to encourage teacher-student interaction. The topics covered are:

• Place value, multiplying and dividing by 10,100 and 1000
• Adding numbers and money
• BODMAS
• Using a calculator
• The game: ’Countdown’
• Fractions, decimals an percentages
• Division
• Geometric Series
• Highest Common Factor and Lowest Common Multiple
• Indices
• Multiplication
• Number Types
• Percentages
• Positive and Negative Numbers
• Rounding
• Standard Form
• The Six Card Puzzle

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Positive and Negative Numbers - Brick Walls

This excel file deals with the four operations on positive and negative numbers giving practice at a variety of calculations.

The first interactive sheet shows a table with -5 to 5 both along the top and down the side...

Rounding

This resource contains two interactive excel files which deal with rounding of discrete and continuous variables and pose problems involving practical examples of calculations using rounded values.

Rounded Numbers: Bounds The first interactive sheet shows two numbers rounded to the nearest...

Standard Form

This excel file deals with the four operations on positive and negative numbers giving practice at a variety of calculations. The first four interactive sheet give sets of numbers to change into and from standard form. The powers of 10 may be positive or negative. The next interactive sheets deal with finding the...

The Six Card Puzzle

This excel file deals with the puzzle where a number between 1 and 63 is chosen. That number can be seen on some of a set of six cards. The number can easily be calculated by looking at the cards containing that number. This puzzle is based on binary numbers and the fact that any number can be uniquely expressed as...

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