Brainlag Plus
Brainlag PlusNon-calculator problem solving
Multi-step problems on money, time, ratio and area worth 3 to 6 marks, worked by hand with clear steps.
Plan before you calculate
A problem worth 4 or 5 marks has several steps. Write down what you need to find, then the steps to get there, and label each line of working so an examiner can follow it. Marks are given for each correct step, even if the final answer slips.
- Turf costs £6 per m². Delivery is £20. The lawn is 9 m by 7 m with a 3 m by 2 m corner missing.
- whole rectangle: 9 × 7 = 63 m²
- missing corner: 3 × 2 = 6 m²
- area: 63 − 6 = 57 m²
- turf: 57 × £6 = £342
- total: £342 + £20 = £362
The rest of this lesson and its 9 practice questions are in Plus.
Screen 1 of 4, free to read.
- 9 exam-style questions, marked as you go, each with a worked solution
- Anything you get wrong is saved to your flashcards