Class 7 · Chapter 2

Arithmetic Expressions

Order of operations, brackets, and evaluating expressions.

Read the full chapter
Ganita Prakash · Class 7 Part 1 (2026-27)
Tip: NCERT updated the syllabus for 2026-27. The links above open the latest edition on the official portal — chapter titles and numbering may differ from the notes shown here.
Detailed theory
Follow BODMAS strictly. 6+2×3=6+6=126 + 2\times 3 = 6 + 6 = 12, not 2424. Multiplication comes before addition.
Key concepts & formulas
01
**BODMAS**: Brackets → Orders → Division/Multiplication → Addition/Subtraction.
02
Brackets: (  )(\;), [  ][\;], {  }\{\;\}.
03
Same-priority operations evaluate left to right.
04
Expressions may include variables, but arithmetic ones use only numbers.
05
Verify by substituting simple values.
Gyaan Maths — CBSE Class 6-12, built for board-toppers.
v1.1 · Sept 2026