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Can an Incomplete Sequence Support a Parity Claim?

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Number Play · Parity of expressions · 3:15

You'll learn: Checking a few cases is not enough; a parity claim needs the complete sequence or a general argument.

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Can an Incomplete Sequence Support a Parity Claim?

3:15

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Can an Incomplete Sequence Support a Parity Claim?

You'll learn: Checking a few cases is not enough; a parity claim needs the complete sequence or a general argument.

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Parity of expressions

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Use 2n and 2n + 1 to Explain an Expression's Parity
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Use 2n and 2n + 1 to Explain an Expression's Parity
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Number-grid constraints

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Use Grid Totals and Bounds to Find Missing Numbers
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Use Grid Totals and Bounds to Find Missing Numbers
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Constructing magic squares

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What Do the Magic Sum and Centre Tell Us About a Magic Square?
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You'll learn: The magic sum and the centre place strong limits on which numbers can go in the corners.
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Complete a Magic Square Systematically and Compare Arrangements
You'll learn: One complete magic-square construction needs time for the constraints and completion steps.

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Generalising magic squares

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Why Is a 3×3 Magic Square's Sum 3 Times Its Centre?
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Why Is a 3×3 Magic Square's Sum 3 Times Its Centre?
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Fractions multiplied by whole numbers

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Multiply a Fraction by a Whole Number Using Repeated Groups
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Multiply a Fraction by a Whole Number Using Repeated Groups
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Working with Fractions

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Multiplying a Fraction by a Whole Number: Repeated Equal Quantities
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Multiplying a Fraction by a Whole Number: Repeated Equal Quantities
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