Volume of Composite Figures

Name: Volume of Composite Figures | Mystery Detective Worksheets | Grades 5–7 | Additive Prisms
Brand: Kiwiland Education
SKU: 17332255
Price: 4.0 USD
Availability: InStock

Mystery Detective Worksheets · Grades 5–7 · Additive Prisms

5th grade math6th grade math7th grade mathGrade 5Grade 6Grade 7Answer keys included

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Self-checkingEvery right answer clears a suspect. A wrong answer matches nobody.

No prepPrint and go, or share the link for digital rooms.

Sub-day readyClear instructions and full answer keys.

Inside the case file

These additive volume worksheets give your 5th, 6th and 7th grade students five CSI Mini Mystery Detective math cases on the volume of composite figures made from rectangular prisms. Use them in math centers, for morning work or homework, or as early finisher work. They're no prep, and there's an answer key for every case.

Crates, hay bales, pools, fish tanks and gift boxes have all gone missing or been moved, and your students are the detectives sent to find out who did it. Each solid is missing a side length or two, and students work those out before they find the volume. Every right answer crosses a suspect off the list. When one name is left, they've found the villain.

What's Inside

5 one-page cases with 8 composite solids each, 40 problems in all, and an answer key for every case
Each solid is one L-shaped figure made of two rectangular prisms, with only some lengths labeled
Two versions of every case. One has lightly shaded solids. The other uses plain outlines to save ink, with the same numbers and suspects.
Answer keys that show where each solid splits, the missing lengths and both part volumes
Lengths in feet and inches
A teacher instructions page
26 pages

The Cases

The Crate Mix-Up - crates swapped around in the school store
The Hay Bale Heist - every hay bale in the barn moved overnight
The Pool Plug Puzzle - the plug pulled on the school pools
The Fish Tank Fiasco - tanks switched around in the science room
The Gift Box Grab - prizes for the school fair repacked

When to Use This Resource

Use this pack once your students can find the volume of a single rectangular prism and are ready for solids made of two. Each case is one page, so you can hand out a single case to a small group, leave one for a sub day or use one as review before a test. Print the outline version when you need a whole class set. It also works for homeschool, and for 6th or 7th grade review of volume.

Grade Levels

Made for 5th grade (5.MD.C.5.c). It's also a good volume review for 6th and 7th graders before they move on to other solids.

Why Teachers Love Mystery Detectives

No prep. Print the version you want and hand it out.
Self-checking, because each right answer crosses off a suspect
Students decide how to split each solid and find the missing sides themselves
Five short cases you can spread over a week
An ink-saving copy of every page

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