---
title: "The Building Plan"
description: "Learning video: Two plus 1 plus 1 is 4. The building has 4 cubes. The plan shows 3, 1, 2 and 2. How many cubes does the building have?"
canonical: "https://www.mathapex.app/en/math-stories/geometry/the-building-plan/"
language: "en"
video: "https://www.mathapex.app/media/stories/videos/en/the-building-plan.230a743d.mp4"
duration: "PT32S"
---

# The Building Plan

Learning video 94 · Geometry · Grade 4 · 0:32

## Read the story

A building plan shows from above how many cubes stand on each square.

Here 2 cubes stand on top of each other, then 1, and then 1 more.

Two plus 1 plus 1 is 4. The building has 4 cubes.

**The plan shows 3, 1, 2 and 2. How many cubes does the building have?**

## Answer and working

Correct! 3 plus 1 plus 2 plus 2 is 8 cubes.

`3 + 1 + 2 + 2 = 8`