755 prompts matching "Spot my mistake in a combination problem"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Deriving the arithmetic series sum formula
I am in SS 1. Quiz me with 4 short Additional Maths questions on how the formula Sn = n/2
Sequences involving fractions
I am in SS 1. Quiz me with 5 short Additional Maths questions on finding the nth term and
Multi-part progression problem with an unknown first term
I am in SS 1. Quiz me with 5 short Additional Maths questions on a multi-part question whe
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
Finding an endpoint given the midpoint
I am in SS 1. Quiz me with 5 short Additional Maths questions on finding one endpoint of a
Condition for two lines to be perpendicular
I am in SS 1. Quiz me with 4 short Additional Maths questions on the condition for two lin
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
Finding the centre and radius from a circle's equation
I am in SS 1. Quiz me with 3 short Additional Maths questions on finding the centre and ra
Factorising the difference of two squares
I am in SS 1. Quiz me with 3 short Additional Maths questions on factorising the differenc
Adding two algebraic fractions with different denominators
I am in SS 1. Quiz me with 3 short Additional Maths questions on adding two algebraic frac
Solving a double inequality
I am in SS 1. Quiz me with 5 short Additional Maths questions on solving a double inequali
Changing the subject with a square or square root
I am in SS 1. Quiz me with 4 short Additional Maths questions on changing the subject of a
Algebraic long division of a simple polynomial by a linear factor
I am in SS 1. Quiz me with 4 short Additional Maths questions on dividing a simple cubic e
IGCSE Additional Maths Y10: The domain of a function — Worked Example
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Take me through one co
IGCSE Additional Maths Y10: Deciding whether a relation is a function — IGCSE Exam Practice
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Set me a past-paper-st
IGCSE Additional Maths Y10: Restricting the domain so that a rule becomes a function — Exam Technique
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Show me how to handle
IGCSE Additional Maths Y10: The horizontal line test — Worked Example
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Take me through one co
IGCSE Additional Maths Y10: Why only a one-one function has an inverse — IGCSE Exam Practice
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Set me a past-paper-st
IGCSE Additional Maths Y10: Solving f of x equals f inverse of x — Exam Technique
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Show me how to handle
IGCSE Additional Maths Y10: Sketching a function and its inverse on the same axes — Teach Me
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Teach me sketching a f