NSW Syllabuses

# Stage 3 - Activity 1

### Mixed operations

#### 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.

#### Context

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

#### Outcomes

MA3-1WM describes and represents mathematical situations in a variety of ways using mathematical terminology and some conventions
MA3-2WM selects and applies appropriate problem-solving strategies, including the use of digital technologies, in undertaking investigations
MA3-5NA selects and applies appropriate strategies for addition and subtraction with counting numbers of any size
MA3-6NA selects and applies appropriate strategies for multiplication and division, and applies the order of operations to calculations involving more than one operation

#### Criteria for assessing learning

(These criteria would normally be communicated to students with the activity.)
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.