893 prompts matching "Estimating an answer by rounding first"
Worked Example: Treating like surds as though they were like terms (Show That / Hence Find)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Spot My Mistake: Rationalising a denominator with a conjugate (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Worked Example: A logarithmic equation with a single logarithm (Show That / Hence Find)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Explain Back: A logarithmic equation with logarithms on both sides (IGCSE/WAEC Revision)
I am in SS 2. Let me explain a logarithmic equation with logarithms on both sides back to
Spot My Mistake: The nth term of a geometric progression written as ar to the n minus one (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Worked Example: The condition for a sum to infinity to exist (Show That / Hence Find)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Explain Back: The sum to infinity formula (IGCSE/WAEC Revision)
I am in SS 2. Let me explain the sum to infinity formula back to you in my own words, as i
Real-World Word Problem: A recurring decimal written as a geometric series (Exam Style)
I am in SS 2. Give me a real-world word problem on a recurring decimal written as a geomet
Teach me (Cambridge style): The formula for the sum to infinity
I am a Year 11 pupil following the Cambridge syllabus. Teach me the formula for the sum to
Explain Back: Reading a sum written in sigma notation (IGCSE/WAEC Revision)
I am in SS 2. Let me explain reading a sum written in sigma notation back to you in my own
Real-World Word Problem: Writing a series in sigma notation (Exam Style)
I am in SS 2. Give me a real-world word problem on writing a series in sigma notation, set
Teach me (Cambridge style): Writing a given series in sigma notation
I am a Year 11 pupil following the Cambridge syllabus. Teach me writing a given series in
Explain Back: Deciding which quadratic method a question is steering you towards (IGCSE/WAEC Revision)
I am in SS 2. Let me explain deciding which quadratic method a question is steering you to
Spot My Mistake: Making a letter the subject of the linear equation (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Worked Example: Substituting the linear equation into the quadratic (Show That / Hence Find)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Explain Back: Solving the quadratic that the substitution produces (IGCSE/WAEC Revision)
I am in SS 2. Let me explain solving the quadratic that the substitution produces back to
Real-World Word Problem: Pairing each x with its own y (Exam Style)
I am in SS 2. Give me a real-world word problem on pairing each x with its own y, set in a
Spot My Mistake: Adding two algebraic fractions with different denominators (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Explain Back: Multiplying two algebraic fractions (IGCSE/WAEC Revision)
I am in SS 2. Let me explain multiplying two algebraic fractions back to you in my own wor
Teach me (Cambridge style): Choosing the region inside or outside the roots
I am a Year 11 pupil following the Cambridge syllabus. Teach me choosing the region inside