Buying vegetables

Buying vegetables

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about adding, subtracting, multiplying, and dividing with decimal numbers.

Vegetable Prices
Lettuces $1.20 each Cabbages $1.50 each
Radishes 50c a bunch Potatoes $1.10 a bag
Tomatoes $2.50 per kg Onions $1.00 a bag
Peas $3.00 per kg Beans $2.00 per kg

Matua bought a bag of vegetables from the market.

 

  1. Using the information above, fill out the table below to show how much the vegetables cost Matua.

     

    Vegetables

    Amount Paid
    2 lettuces
    $__________
    2 cabbages
    $__________
    3 bags of potatoes
    $__________
    2 bags of onions
    $__________
    \(1 \over 2\) kg tomatoes
    $__________
    \(1 \over 2\) kg beans
    $__________
    		 

  2. How much did Matua spend altogether?   $__________

  3. If Matua had $25 in his account, how much would be left after paying for the vegetables?   $__________
Task administration: 
This task is completed with pencil and paper only.
Level:
4
Curriculum info: 
Maths, Number and Algebra, Number Strategies
Keywords: 
addition, subtraction, multiplication, division, rates, decimals, money
Description of task: 
Students use prices of vegetables to perform all four arithmetic operations on decimal numbers.
Curriculum Links: 
This resource can help to identify students' ability to apply additive or multiplicative strategies flexibly to whole numbers, ratios and equivalent fractions (including decimals and percentages) to solve problems.
 
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Additive thinking, sets 7-8
Multiplicative thinking, sets 6-7
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
Scoring:  

Y7 (09/1996)

Y8 (09/1996)
3 marks
(all 6 correct)
or
2 marks
(4-5 correct)
or
1 mark
(2-3 correct)		 a) lettuces $2.40
cabbages $3.00
potatoes $3.30
onions $2.00
tomatoes $1.25
beans $1.00		 easy


very easy


very easy

 very easy


very easy


very easy
1 mark b) 12.95 (or sum of all amounts given in a)). easy easy
1 mark c) 12.05 (or $25 - answer in b)). moderate easy