Using expressions in algebra

Using expressions in algebra

Auto-markingPencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about identifying an algebraic expression that describes a situation.

Question

a)  There are q monkeys in a zoo cage. Two of them are asleep.
     Which expression shows how many are awake?

    • q × 2

    • q - 2

    • q + 2

    • 2 - q

    • q ÷ 2

Question

b)  There are 5 tigers in a zoo. z of them are roaring for their dinner.
     How many are quiet?  

    • z × 5
       

    • z - 5

    • z + 5

    • 5 - z

    • 5 ÷ z

Question

c)  Michael is learning to play golf. His score was twice as much as his father's score.
     If Michael scored h shots, how many did his father score?

    • 2 × h

    • h - 2

    • h ÷ 2

    • 2 ÷ h

    • 2 - h

Task administration: 
This task is completed with pencil and paper or online with automarking.
Level:
4
Curriculum info: 
Maths, Number and Algebra, Equations and expressions
Keywords: 
algebraic expressions
Description of task: 
Students select an appropriate simple algebraic expression for a number of different situations.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Using symbols and expressions to think mathematically, sets 4-5
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

Y8 (06/1996)

Y9 (06/1996)

a)

B (q - 2)

easy

very easy

b)

D (5 - z)

moderate

moderate

c)

C (h ÷ 2)

difficult

moderate