Negative Numbers in Real-Life Contexts
A temperature of -3°C is warmer than -8°C because -3 is higher on the number line. Open Full Article...
inverse operations
Reverse Percentages Explained: Finding the Original Value (Parent Q&A)
This guide explains how to find an original amount when a final amount and a percentage change are known. Open Full Article...
Reverse Percentages Explained: Finding the Original Value (Teach This Topic)
This guide supports teaching reverse percentages: finding an original value when the final value and percentage change are known. Open Full Article...
Reverse Percentages Explained: Finding the Original Value
If a jumper costs £80 after a 20% discount, why is the original price not £100 simply because we add 20% back? Open Full Article...
Fractions Inside Reverse Calculations: Finding the Original Amount (Parent Q&A)
This guide explains how to recover an original amount when a fraction or percentage of it is known. Open Full Article...
Fractions Inside Reverse Calculations: Finding the Original Amount (Teach This Topic)
This guide supports teaching learners aged 11 to 16 how to recover an original amount from a known fraction, percentage or multiplier. Open Full Article...
Fractions Inside Reverse Calculations: Finding the Original Amount
If 1/4 of a number is 6, how can we work backwards to discover the whole number? Open Full Article...