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1. Stage 3
2. Mathematics
3. Activities
4. Mixed operations

## Mixed operations

Midway through Stage 3 (end of Year 5)
New Work Samples
Ariel
Lindsay
Dale
Lou
Bobby

## Foundation Statement strands

The following strands are covered in this activity:

## Description of activity

Students select 15 numbers between 1 and 100. They express each of the selected numbers in two different ways using mixed operations, eg 2 = 2 ÷ 2 + 1; 2 = 4 x 1 – 2.

## Suggested materials

Paper, pencils, calculators (optional)

## Prior learning

Students have calculated solutions to problems involving mixed operations and used formal written algorithms.

Board of Studies NSW, Mathematics K–6 Sample Units of Work, p 124

## Outcomes

Addition and Subtraction (NS3.2)
Selects and applies appropriate strategies for addition and subtraction with counting numbers of any size.
Multiplication and Division (NS3.3)
Selects and applies appropriate strategies for multiplication and division.
Applying Strategies (WMS3.2)
Selects and applies appropriate problem-solving strategies, including technological applications, in undertaking investigations.
Communicating (WMS3.3)
Describes and represents a mathematical situation in a variety of ways using mathematical terminology and some conventions.

## Criteria for assessing learning

Students will be assessed on their ability to:

• use appropriate strategies for addition and subtraction
• use appropriate strategies for multiplication and division
• express numbers in different ways using mixed operations.