Class 7 NCERT • Ganita Prakash Maths Portal
Ch 04: Expressions Using Letter-Numbers
Select a topic or study module below to explore letter-numbers and formulas, evaluating algebraic expressions, simplifying like terms, bracket rules, matchstick and calendar patterns, and Figure It Out solutions.
Topic 01 • Letter-Numbers & Formulas
Using Letters for Numbers, Framing Shopping & Age Expressions & Polygon Perimeters
Topic 02 • Value of an Expression
Why 5u ≠ 5 + u, Substituting Values for Letter-Numbers & Checking Equations
Topic 03 • Simplifying Like Terms
Rectangle Perimeter (2l + 2b), Combining Like Terms & Why 3a + 2b ≠ 5ab
Topic 04 • Brackets & Error Spotting
Adding & Subtracting Bracketed Expressions, Distributive Law & Common Mistakes
Topic 05 • Pick-a-Pattern & Machines
nth-Term Rules, Matchstick Shapes, Repeating Designs, Calendar 5a Cross & Number Machines
Module 06 • Figure It Out & HOTS