Computer printing

Computer printing

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about calculating with rates.
   illustration: printer
The printer for a computer prints 5 pages each minute.
 
a)
How many pages will it print
 
 
i)
 
ii)
 
iii)
 
in 4 minutes? __________
 
in 1 hour? __________
 
from 9:20 a.m. until 9:45 a.m.? __________
 
b)
How long will the printer take to print
 
 
i)
 
ii)
 
iii)
 
45 pages? __________ minutes
 
200 pages? __________ minutes
 
1200 pages? __________ hours
 
c)
Anita's computer prints 30 pages in 5 minutes.
How many pages does it print each minute?  
 
__________
 
You may show your working out here:
Task administration: 
This task is completed with pencil and paper only.
Level:
4
Curriculum info: 
Maths, Number and Algebra, Number Strategies
Keywords: 
rates, multiplication, time
Description of task: 
Students calculate the quantity and time taken for pages to be printed on a computer printer from the rate at which it prints.
Curriculum Links: 
This resource can help to identify students' ability to apply multiplicative strategies flexibly to whole numbers, ratios and equivalent fractions (including decimals and percentages) in simple rate problems.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Multiplicative thinking, sets 6-7
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

Y8 (06/2000)

a)

i)
ii)
iii)

20
300
125

very easy
easy
easy

b)

i)
ii)
iii)

9
40
4

easy
easy
difficult

c)

  

6

easy