Watch first
A worked question
About a minute each. The question, time to think, then how to do it and the mistake to avoid.
Mean: working with totals
Finding a missing value from how the mean changes.
Data practice
No timerFoundation questions. No timer: check each answer as you go, then read the explanation.
1. In a tally chart, the row for ‘red’ has 4 complete groups of five and 4 single strokes. How many children chose red?
These 10 are free
Every topic gives you 10 questions to try, at any level, with the full explanation on each one. A subscription opens the rest — and in the maths topics the questions are generated, so they never run out and never repeat.