Grade 7 Computational Thinking, Chapters 1 and 2 (Number Detectives)

Number Detectives: Grade 7 Computational Thinking, Chapters 1 and 2 — Large numbers, operator swaps and reverse reasoning — four puzzles solved step by step A Grade 7 lesson on Large Numbers Around Us and Arithmetic Expressions. Four animated puzzles develop place-value reasoning, constraints, operation priority, and inverse operations. Chapters 0:00 Let's begin 0:39 Large Numbers Around Us 2:15 Puzzle 1 3:40 Puzzle 2 5:06 Arithmetic Expressions 6:46 Puzzle 3 8:09 Puzzle 4 9:37 Recap 10:23 Try your own Covered: Grade 7, large numbers, Indian place value, arithmetic expressions, operator swaps, working backwards, computational thinking. Puzzles adapted from Chapters 1 and 2 of the CBSE Class 7 CT and AI Teacher Handbook (2026). All questions are fully stated; no book is needed. Create your own puzzle and justify its answer. #Grade7 #ComputationalThinking #CBSE #Maths