755 prompts matching "The probabilities of nought, one and two successes read off an expansion"
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Explaining why sum to infinity only works for |r| < 1
I am in SS 1. Quiz me with 5 short Additional Maths questions on explaining, using a numer
Gradient from a linear equation
I am in SS 1. I'm going to explain finding the gradient and y-intercept of a line directly
Deciding if three points are collinear
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Show all working: multi-part coordinate geometry question
I am in SS 1. Quiz me with 3 short Additional Maths questions on a structured Cambridge/Ad
Coordinate geometry exam question: quadrilateral vertices
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Common mistakes in coordinate geometry formulas
Teach me the most common mistakes SS1 students make with coordinate geometry formulas, suc
Factorising by grouping four terms
I am in SS 1. Teach me factorising an expression with four terms by grouping them in pairs
Simplifying an algebraic fraction by factorising first
I am in SS 1. Teach me simplifying an algebraic fraction by factorising both the numerator
Simplifying a complex algebraic fraction
I am in SS 1. Teach me simplifying a 'fraction within a fraction' algebraic expression by
Solving a double inequality
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Representing a solution set on a number line
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Solving simultaneous linear equations by substitution
I am in SS 1. I'm going to explain solving a pair of simultaneous linear equations by the
Solving simultaneous linear equations by elimination
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Forming an algebraic expression from a word problem
I am in SS 1. Quiz me with 4 short Additional Maths questions on translating a short word
Common sign errors in algebraic manipulation
Show me a fully worked Cambridge/Additional Maths style solution to a question on the most
Quiz: Writing a recurring decimal as a fraction to show it is rational
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Show All Working: Simplifying a surd expression that contains brackets
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Show All Working: Checking a rationalised answer by decimal approximation
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Quiz: Checking a surd equation for extraneous roots
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Spot My Mistake: Solving a surd equation that leads to a quadratic
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