Unit 2 · Number Theory
26 Bricks, 6 Per Layer — Last Brick on Which Layer?
Lesson 8 of 15
About this lesson
Maisy lays 6 bricks per layer and has 26 bricks total. 26 ÷ 6 = 4 remainder 2. She finishes 4 full layers (24 bricks) and then starts a 5th — her last 2 bricks go there. Option A (4th) traps students who stop at the last complete layer.
Chapters
Question
Maisy is building a wall using bricks, one layer at a time.
She always completes one layer before she starts the next layer.
Each layer is made from 6 bricks.
Maisy has 26 bricks and she uses them all.
Which layer is she working on when she lays her last brick?
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