---
title: Multiplying by a one-digit number — a lesson of Mova's school · trees and pragmatics
description: «Multiplying by a one-digit number», a lesson of the lessons course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: To multiply a big number by a one-digit number, multiply the ones, the tens and the hundreds apart and add: 136 × 4 = 100 × 4 + 30 × 4 +
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/lessons/142-multiply-by-one-digit/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Lessons](https://md.mova.elamur.ai/free/en/corpora/school/lessons/) / Multiplying by a one-digit number

# Multiplying by a one-digit number

<!-- .vabout -->
Lesson 142 of the lessons course of Mova's primary school: 3 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0).

<!-- list vl: b t -->
- [0](https://md.mova.elamur.ai/free/en/corpora/school/lessons/142-multiply-by-one-digit/0/) — To multiply a big number by a one-digit number, multiply the ones, the tens and the hundreds apart and add: 136 × 4 = 100 × 4 + 30 × 4 + 6 × 4 = 400 + 120 + 24 = 544.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/142-multiply-by-one-digit/1/) — In writing, start with the ones and carry the tens: 6 × 4 = 24, write 4 and carry 2; 3 × 4 = 12, and 12 + 2 = 14, write 4 and carry 1; 1 × 4 = 4, and 4 + 1 = 5.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/lessons/142-multiply-by-one-digit/2/) — The cost is the price times the quantity: 4 chairs at 136 dollars each cost 136 × 4 = 544 dollars.

<!-- pn -->
- ← previous: [Numbers to 1000: adding and taking away in stories](https://md.mova.elamur.ai/free/en/corpora/school/lessons/141-three-digit-stories/)
- next →: [Dividing by a one-digit number: how many can be bought](https://md.mova.elamur.ai/free/en/corpora/school/lessons/143-how-many-can-be-bought/)
- ↑ back to [Lessons](https://md.mova.elamur.ai/free/en/corpora/school/lessons/)