Volume of a Cube: Volume 216, What's the Edge? | Learn Perfect Cubes 2³ to 10³ (Grades 2–6)

A cube is a box where every edge is the same length. Its volume is edge × edge × edge, which we call edge cubed. Siggy stacks the layers to show WHY, teaches you the cubes from 2³ to 10³ so cube questions take one second, and goes backwards in the boss level: volume 216, find the edge. The final trick in Geometry Foundations! Chapters 0:00 Hook: how many unit cubes fit inside? 0:12 Trick #45: volume = edge³ 0:25 Example: edge 3 → 27 0:42 Your turn: edge 5 → 125 0:56 Why edge cubed? Stack the layers 1:13 Memory trick: know your cubes 2³ to 10³ 1:51 Boss level: volume 216 → edge 6 2:11 Your challenge 2:23 Geometry Foundations wrap-up CHALLENGE ANSWERS (pause before you peek!) • Edge 7 → volume = 343 • Bonus: volume 512 → edge = 8 NEXT TRICK: A brand new Math Sigmas playlist is coming soon! Math Sigmas: fast, friendly number-sense tricks for grades 2–6. A new trick every week. Subscribe so you don't miss one! #MathSigmas #Geometry #MathTricks #MentalMath #NumberSense