📐 Common Core math practice · Grades K–8

Crack the case. Master the math.

Number Cadets turns Common Core math — addition, place value, multiplication — into secret-agent mystery missions. Solve cases, earn badges, and level up real K–8 skills while we track your mastery standard by standard. Your first mystery's free, Agent. 👉

✓ Common Core K–8✓ Teacher & homeschool approved✓ No ads, kid-safe
SECRET CADET ACADEMYNC-▮▮▮
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Codename
AGENT NOVA
Division
Numbers Bureau
CLEARANCE: CADET · STATUS: READY

CODENAME RESERVED

Welcome, Agent. Create your free account to start →

Create my account
▸ Pick your codename
▸ Pick your look
CASE LIVE NOW: “Starlight Station” — your free mystery is ready. Start the case →
🌍 A new world every case

Travel anywhere. Solve everything.

Space stations, lost pyramids, museum heists, pirate coves — each mission is its own adventure (and sneaky math practice).

🐣 K🎒 1✏️ 2📐 3🔭 4⚗️ 5🧠 6🚀 7🏆 8

Missions are sorted by grade so every Agent gets the right challenge.

🗺️ Open the Mission Map
💳 Simple membership

One case free. Unlock the rest.

Free Recruit
$0
1 mystery · first badge
⭐ Family
$9.99/mo
All worlds · 4 agents · dashboard
🏫 Classroom
$6/agent/yr
Rosters · per-agent tracking
See all plans →
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Love a good story too?
Reading Cadets is the same Academy — different missions, same badge wall.
Enroll at Reading Cadets →
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