The unknown number: equations as storiesLesson 138 of the lessons course of Mova's primary school: 4 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).0An equation is a story with a missing number.2Undo the steps from the end: take away the 5 to get 21, then divide by 3 to get 7.3Check: 7 × 3 + 5 = 26.4On a balance, 3 equal bags and a 5 kg weight against 26 kg mean the bags weigh 21 kg, so one bag weighs 7 kg.← previousBrackets in a story: first the group, then the groupsnext →Cuts and pieces, posts and gaps↑ back to LessonsThis page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/lessons/138-equations-as-stories/