Bring lessons to life with this engaging BIDMAS Murder Mystery, perfect for KS3–KS4 pupils who need to strengthen their order-of-operations skills through reasoning and problem-solving. Learners evaluate calculations to identify the suspect, location and day of the “crime”, using BIDMAS/BODMAS rules accurately to crack the case.
This print-and-go resource includes a full mystery worksheet where pupils check statements made by four characters, evaluate location clues, and verify day-of-the-week equations — all designed to deepen conceptual understanding of BIDMAS. Clear structure and built-in challenge make this ideal for lessons, starters, group work, revision or homework.
What’s Included:
◆ Who? suspect-identification task using correct vs incorrect BIDMAS calculations
◆ Where? location puzzle using multi-step order-of-operations problems
◆ When? day-of-the-week deduction using paired BIDMAS statements
◆ Final accusation section for pupils to record their conclusion
◆ Full worked solution for easy marking
◆ Print-friendly layout
If your pupils enjoy this mystery, please consider leaving a review — your feedback helps me continue creating high-quality, high-engagement maths resources.
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This is a great resource however there are some errors in your mark scheme which changes the results for this mystery
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£2.00