---
title: "First One, Then Many"
description: "Math story: Then 5 times 2. 5 notebooks cost 10 dollars. 4 pencils cost 8 dollars. How much do 7 pencils cost?"
canonical: "https://www.mathapex.app/en/math-stories/word-problems/first-one-then-many/"
language: "en"
video: "https://www.mathapex.app/media/stories/videos/en/first-one-then-many.7d768b0b.mp4"
duration: "PT36S"
---

# First One, Then Many

Math story 81 · Word problems · Grade 4 · 0:36

## Read the story

3 notebooks cost 6 dollars. How much do 5 notebooks cost?

First the price of 1 notebook: 6 divided by 3 is 2 dollars.

Then 5 times 2. 5 notebooks cost 10 dollars.

**4 pencils cost 8 dollars. How much do 7 pencils cost?**

## Answer and working

Correct! One pencil costs 2 dollars. 7 times 2 is 14 dollars.

`7 × 2 = 14`