Demystifying - Order of operations review

Drills

Evaluating multi-step calculations in the right order, and recognising valid reorderings and inverse checks.

Author note — to cover
  • Fluency — multi-step BIDMAS with indices, brackets and fraction bars (5 questions).
  • Reordering — single-choice questions picking which regrouping of a calculation is valid and mental, alternated with separate numeric questions evaluating a regrouped calculation; one answer per question (4 questions).
  • Checking — choosing the inverse calculation that checks a given result, then a final expression where left-to-right working gives a plausible wrong answer (4 questions).

The test

—coming soon—

Where to go next

This mixed review uses the methods from these learning pages: