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Formula Sheet

Expressions using Letter-Numbers — Formula Sheet

CBSE · Class 7 · Mathematics

8 formulas from Expressions using Letter-Numbers (CBSE Class 7 Mathematics) on one page, grouped by topic. Part of the CBSE Class 7 Mathematics syllabus.

45 questions56 flashcards8 formulas & key relations5 concepts

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8 Entries · 4 Sections

Formulas and Key Relations

1. Letter-Numbers and Algebraic Expressions

Shabnam's age = Aftab's age + 3

Aftab's age = Shabnam's age - 3

2. Rules for Arithmetic and Algebraic Expressions

Swapping and grouping terms does not change the value of an expression

a(b + c) = ab + ac

Number before letter: 4n

3. Rectangle Perimeter in Letter-Numbers

p = l + b + l + b

p = 2l + 2b

4. Multiples of 4 and Omission of the Multiplication Sign

nth term = 4n

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Frequently Asked Questions

What are the important topics in Expressions using Letter-Numbers for CBSE Class 7 Mathematics?
Key topics in Expressions using Letter-Numbers include Letter-numbers and Algebraic Expressions, Revisiting Arithmetic Expressions and Simplification, Omission of the Multiplication Symbol, Simplifying Perimeter Expressions. Study these first, then practise questions on each for Class 7 exams.
How many formulas are in Expressions using Letter-Numbers?
This sheet lists 8 formulas from Expressions using Letter-Numbers, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Expressions using Letter-Numbers for Class 7 exams?
Learn the core ideas first, then work through the 45 practice questions on Expressions using Letter-Numbers. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Expressions using Letter-Numbers

All CBSE Class 7 Mathematics Formula Sheet

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