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00:13:00
Estimation – Educated Guesswork?
How can we make sensible estimates of very large numbers? It is often very important to know the size of an unknown number, at least to within a factor of ten.
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00:05:00
Square Roots 2
00:11:00
All numbers are not equal
An introduction to the various types of numbers which are recognised as important.
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00:12:00
Fractions 2
An approach to adding and subtracting fractions, using an understanding of the processes involved.
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00:21:00
Fractions 1
How can we represent fractions in the simplest way? Equivalence of decimal and common fractions.
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00:15:00
Percentages
Making life easy when using percentages. A sometimes fraught topic looked at differently.
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00:10:00