--- title: Multiplying bigger numbers in stories — a lesson of Mova's school · trees and pragmatics description: «Multiplying bigger numbers in stories», a lesson of the lessons course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: When there are many equal groups, multiply the number of groups by the size of one group, even when both are two-digit numbers. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/lessons/161-multiplying-big-numbers/) [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 bigger numbers in stories # Multiplying bigger numbers in stories Lesson 161 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). - [0](https://md.mova.elamur.ai/free/en/corpora/school/lessons/161-multiplying-big-numbers/0/) — When there are many equal groups, multiply the number of groups by the size of one group, even when both are two-digit numbers. - [1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/161-multiplying-big-numbers/1/) — Split one number into tens and ones: 23 boxes of 34 pens is 20 × 34 + 3 × 34 = 680 + 102 = 782 pens. - [2](https://md.mova.elamur.ai/free/en/corpora/school/lessons/161-multiplying-big-numbers/2/) — It does not matter which number you write first: 34 × 23 is the same 782. - ← previous: [Olympiad: how many digits number the pages of a book](https://md.mova.elamur.ai/free/en/corpora/school/lessons/160-digits-on-the-pages/) - next →: [Dividing bigger numbers in stories](https://md.mova.elamur.ai/free/en/corpora/school/lessons/162-dividing-big-numbers/) - ↑ back to [Lessons](https://md.mova.elamur.ai/free/en/corpora/school/lessons/)