Study meaning: The Night of Decree is better than a thousand months.
Better than a thousand months expresses extraordinary worth. A thousand months equals 83 years and four months, but the ayah says better than, not exactly equal to that number. Do not invent a guaranteed reward for every individual action.
Return to ayahs 1-2, then add this ayah. If a phrase is difficult, practise less material and return later. A parent can listen and encourage without asking the learner to compete.