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4/06/2018

Published

Buy supplies online for a school canteen. Purchase given amounts of items such as bottles of orange juice and boxes of sultanas. Notice that the unit prices are different for packs of different sizes. In this level, perform slightly harder calculations to work out how many packs you will need, and which available pack size will be the cheapest. For example, in order to purchase 200 boxes of sultanas (available in packs of 10 for $2.60, packs of 25 for $6.75 or packs of 50 for $12.80), how many packs will you need and which will be the cheapest option? Complete the shopping list and calculate the total cost. This learning object is the fourth in a series of eight objects that progressively increase in difficulty.

Mathematics > Level 7 > Number and Algebra > Money and financial mathematics > VCMNA250

Investigate and calculate 'best buys', with and without digital technologies

Mathematics > Level 7 > Number and Algebra > Real numbers > VCMNA244

Multiply and divide fractions and decimals using efficient written strategies and digital technologies

Mathematics > Level 8 > Number and Algebra > Number and place value > VCMNA273

Carry out the four operations with rational numbers and integers, using efficient mental and written strategies and appropriate digital technologies and make estimates for these computations

Resource Type

Interactive

Keywords

Discounts (Price), Unit Prices, Money, Bulk buying, Comparing, Online Shopping, Ordering, Groceries, Multiplication, Division, Discounts, Value

ScOT Keyword

DivisionMultiplicationMoneyDiscounts (Price)

Language

English

Published Date

04/06/2018

Key Learning Objectives

Students use halving and doubling, thirding and trebling strategies in multiplicative situations.

Students solve problems by selecting and applying efficient multiplicative strategies.

Students solve problems using or involving ratios and rates.

Students solve problems in a shopping context.

Educational Values

Students are encouraged to use efficient multiplicative strategies to solve arithmetic problems.

Students solve arithmetic problems involving money and quantities.

Calculations require recognition and use of factors and multiples of whole numbers and measures; recall of multiplication and division facts.

Randomised quantities and costs support repeated use.

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