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title: Some more join in: how many came, how many at first — a lesson of Mova's school · trees and pragmatics
description: «Some more join in: how many came, how many at first», a lesson of the lessons course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: In a joining story we know two of three numbers: how many at first, how many came, how many at the end.
---

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# Some more join in: how many came, how many at first

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Lesson 72 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).

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- [0](https://md.mova.elamur.ai/free/en/corpora/school/lessons/72-join-change-start-unknown/0/) — In a joining story we know two of three numbers: how many at first, how many came, how many at the end.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/72-join-change-start-unknown/1/) — If the start and the end are known, the ones that came are the end take away the start: 7 at first, 12 now, so 12 - 7 = 5 came.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/lessons/72-join-change-start-unknown/2/) — If the ones that came and the end are known, the start is the end take away the ones that came: 4 came, 12 now, so 12 - 4 = 8 at first.

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