Solve the tasty crime and save the bakery with this Decimal Review Math Mystery 4th Grade activity! ‘The Case of the Disappearing Donuts’ is a high-engagement math review designed to practice identifying, converting, and comparing decimals involving tenths and hundredths.
It’s the perfect no-prep math activity! This resource is loaded with options, including an optional video hook and a fun ending video to wrap up the case!
This resource is designed to be low-prep for you and high-engagement for your students.
To find the donut thief, students must unlock five clues by correctly solving these Common Core-aligned challenges:
Use this versatile decimal worksheets alternative for:
This is a comprehensive review that can take anywhere from 30 minutes to 2+ hours, depending on your students’ skill level. We recommend pacing it by one clue at a time.
Q: Does this include Thousandths?
A: No! This is strictly aligned to 4th Grade Standards, so it only covers tenths and hundredths. (Thousandths are covered in our 5th Grade edition).
Q: What types of models are used?
A: Clue 4 uses visual models such as hundreds grids and base ten blocks representations to help students visualize the value of the decimals before writing them.
Q: How does differentiation work with these?
A: That’s our secret weapon! Many of our stories are available for other grades, so you can “clue swap” with the 2-6 grade packs. We even have a blog post explaining how: learn how to differentiate here.
Love this ‘Disappearing Donuts’ theme? This mystery is also available for other grade levels (great for differentiation)!
A complete answer key and printable awards are included!
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