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3 worked questions
About a minute each. The question, time to think, then how to do it and the mistake to avoid.
Sequences where the gap changes
Spotting a doubling gap when the numbers grow quickly.
Sequences from the first and last terms
Why six terms means five jumps.
Think of a number
Working backwards by undoing each step.
Sequences and algebra practice
No timerFoundation questions. No timer: check each answer as you go, then read the explanation.
1. What is the next number in the sequence 31, 37, 43, 49, 55, …?
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.