## Mixed operations

Grade | Work Samples |
---|---|

Midway through Stage 3 (end of Year 5) | |

Grade A | Jerry |

Grade B | Pat Jordan |

Grade C | Courtney Lesley Marley Bailey Kendall Jude |

Grade D | Riley Nicky Jules Eden |

## 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.