Expressions Using Letter-Numbers
Class 7 · Mathematics
3 ideas in Class 7 Mathematics, explained in plain words, with games and quizzes to practise.
Letters Representing Quantities
Part of: Writing Expressions
This concept explains letters representing quantities with letter-number expressions.
Why it matters. Letter-numbers describe relationships that work for many values.
Try it in two minutes
- Identify what each letter represents.
- Substitute the given values.
- Calculate in the correct order.
Try at home. Write a letter-number rule for the cost of several identical objects.
Substitution and Grouping
Part of: Evaluating Expressions
This concept explains substitution and grouping with letter-number expressions.
Why it matters. Letter-numbers describe relationships that work for many values.
Try it in two minutes
- Identify what each letter represents.
- Substitute the given values.
- Calculate in the correct order.
Try at home. Write a letter-number rule for the cost of several identical objects.
Like Terms and Patterns
Part of: Simplifying Expressions
This concept explains like terms and patterns with letter-number expressions.
Why it matters. Letter-numbers describe relationships that work for many values.
Try it in two minutes
- Identify what each letter represents.
- Substitute the given values.
- Calculate in the correct order.
Try at home. Write a letter-number rule for the cost of several identical objects.
What your child will practise
- Letters Representing Quantities: Candy Puzzle (Clue Puzzle)
- Letters Representing Quantities: Space Quick Fire (Quick Fire)
- Like Terms and Patterns: Mission Control Quest (Collect the Answer)
- Like Terms and Patterns: Ocean Quest (Flip and Match)
- Substitution and Grouping: Number Quest (Match It Up)
- Quiz: Letters Representing Quantities (8 questions)
- Quiz: Like Terms and Patterns (8 questions)
- Quiz: Substitution and Grouping (8 questions)