MathematicsFreePrintable

Math Detective Hunt

A free mathematics worksheet ready for your classroom. Open in Kuraplan to grab the print-ready PDF, customize it for your students, or generate a fresh version in seconds.

Math Detective Hunt worksheet preview

Math Detective Hunt

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📚 Part 1: Warm-up & "I can..."

I can...

I can solve addition and subtraction with multi-digit numbers using place value.

I can read numbers in expanded form and use number patterns to find answers.

Success Criteria:

- Use place value to add or subtract correctly.

- Explain one step of your reasoning when asked.

1. What is 423 + 187?

590

610

600

2. What is 600 − 278?

322

328

332

3. Which shows 4,305 in expanded form?

4,000 + 300 + 5

4,000 + 30 + 5

4,000 + 300 + 50

✏️ Part 2: Short Answer (Show your work)

4. I am a number with 5 hundreds, 4 tens, and 3 ones. Add 267. What is the sum?
5. The pattern is 150, 140, 130, ... What number comes next? Then subtract 23 from it. What is the result?
6. Start with 3,406. Subtract 1,279. What number remains? Show place-value steps.
7. Partner check: One partner adds 2,345 + 1,456. The other partner explains the regrouping step. Write the final answer and one sentence explaining the regrouping.

🔍 Part 3: Reflection & Extension

Differentiation / Dyslexia-Friendly Options:

- Read clues aloud or use dyslexia-friendly cards with large sans-serif font and high contrast.

- Use place-value charts or base-ten blocks for hands-on support. Pair students so strengths are shared.

Extension for advanced learners: Create a two-step mystery: add a three-digit number to 4,000 then subtract a number that follows a pattern (e.g., double then minus 5). Write your clue and solve it.

8. Reflection: Which strategy helped you most? Explain in one sentence:
9. Extension Challenge: Write your two-step clue and show the solution below.

About This Worksheet

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