Sample work Mathematics K–10 Stage 3: 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.