587 prompts matching "Spot my mistake calculating standard deviation"
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Changing the subject of a simple formula
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Changing the subject when the variable appears twice
I am in SS 1. Teach me changing the subject of a formula where the required letter appears
Simplifying an expression with brackets and indices together
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Substituting values into an algebraic expression
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Solving a word problem using simultaneous equations
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Factorising a quadratic with a coefficient in front of x squared
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Multi-part algebraic manipulation exam question
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Simplifying expressions with like and unlike terms
I am in SS 1. Teach me correctly identifying and collecting like terms in a longer algebra
Cross-multiplying to solve an equation with fractions
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Explaining the difference between an expression and an equation
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Quiz me rapid-fire on expanding and factorising
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WAEC-style past question on algebraic fractions
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Common sign errors in algebraic manipulation
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Learn: Telling a rational number from an irrational one
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Worked Example: Why the square root of a non-square whole number is irrational
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Quiz: Writing a recurring decimal as a fraction to show it is rational
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Practice: Deciding whether root 16 is rational or irrational
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Explain Back: Where the surds sit on the number line
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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