Grade 7 Mathematics · Strand 2: Algebra · Algebraic Expressions
Introduction to Algebraic Expressions
A short Grade 7 Mathematics lesson for the CBE curriculum, part of Algebra: Algebraic Expressions. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.
1. Which one of the following is an algebraic expression?
- A. 5x + 3 = 28
- B. x = 6
- C. 5x + 3
- D. 42
2. A matatu charges f shillings for each adult and 30 shillings for each child. What is the total fare collected from 12 adults and 4 children?
- A. 12f + 120
- B. 16f + 30
- C. 12f + 30
- D. 12 + f + 120
3. Which expression means '7 less than k'?
- A. 7 - k
- B. k - 7
- C. 7k
- D. k + 7
4. In the expression 3b + 50, what name is given to the fixed number 50 that never changes?
Type your answer in the lesson.
5. Zawadi buys 5 exercise books at x shillings each, 3 pens at y shillings each, and pays 20 shillings for book covering. Her total spend is 5x + 3y + 20. Find her total spend in shillings if x = 40 and y = 15.
Type your answer (in shillings) in the lesson.
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