NCERT Solutions for Ganita Prakash (Part 1) Chapter 2 Arithmetic Expressions
Updated on 2026-09-05
About this chapter
An arithmetic expression is a number phrase like 13 + 2 or 5 × 25; the number it evaluates to is its value . Two expressions can be compared with =, < or > by looking at how their parts differ — no full calculation needed. Terms are the pieces of an expression separated by ‘+’. Every subtraction is first rewritten as adding the inverse, so 83 – 14 has terms 83 and –14. Terms may be added in any order and in any grouping — the commutative and associative properties of addition. Removing a bracket that has a minus sign in front of it flips the sign of every term inside it. The distributive property : a × (b + c) = a × b + a × c, and a × (b – c) = a × b – a × c — the multiple of a sum (difference) is the sum (difference) of the multiples.
- Simple Expressions
- Comparing Expressions
- – 29Section 2.2 Terms in Expressions
- Swapping and Grouping
- More Expressions and Their Terms
- – 35Section 2.2 More Expressions and Their Terms
- Tinker the Terms I
- – 38Removing Brackets
- Removing Brackets
- Tinker the Terms II
Exercises
- In-text Questions — Simple Expressions Page 24
- Figure it Out — Comparing Expressions Page 25
- In-text Questions — Comparing Expressions Page 26
- – 29Section 2.2 Terms in Expressions — In-text Questions Page 28
- In-text Questions — Swapping and Grouping Page 30
- In-text Questions — Swapping and Grouping Page 31
- In-text Questions — More Expressions and Their Terms Page 32
- In-text Questions — More Expressions and Their Terms Page 33
- In-text Questions — More Expressions and Their Terms Page 34
- – 35Section 2.2 More Expressions and Their Terms — Figure it Out Page 34
- Tinker the Terms I — In-text Questions Page 37
- – 38Removing Brackets — Figure it Out Page 37
- Removing Brackets — In-text Questions Page 39
- Removing Brackets — In-text Questions Page 40
- Tinker the Terms II — In-text Questions Page 41
- – 42The Distributive Property — Figure it Out Page 41
- – 44Chapter Review Exercise — Figure it Out Page 42
- Chapter Challenge — Expression Engineer! Page 45