1,023 prompts matching "Recognising an expression as a difference of two squares"
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Quiz Me: The pattern made by counting in twos
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Quiz Me: Adding the place values of the ones in a binary number
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Quiz Me: Carrying when a binary column makes two
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Practice: Counting in twos to reach a total quickly
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Practice: Adding two four-digit binary numbers
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Quiz Me: Crossing out the multiples of each prime in turn
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Practice: Knowing when a list of factors is complete
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Practice: Reading the primes off the finished sieve
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Practice: Reading a number back out of index form
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Practice: Spotting the multiples of a number in a list
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Quiz Me: Finding the highest common factor of three numbers from prime factors
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Quiz Me: Finding the lowest common multiple of three numbers from prime factors
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Quiz Me: The next time two repeating events happen together
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Practice: Two numbers whose highest common factor is one
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Quiz Me: Checking two fractions are equivalent by cross-multiplying
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Quiz Me: Descending order for a list of mixed numbers
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Quiz Me: Recognising a mixed number in a list
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Quiz Me: A word problem adding fractions of a length
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Practice: A word problem about a fraction of several items
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Quiz Me: Naming the place of a digit after the decimal point
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