Computations with integers

This lesson comprises two (2) master classes focusing on:

• Place value in numbering systems
• Algorithms for adding and subtracting integers
• Algorithms for multiplying and dividing integers
• Dealing with reminders
• Estimating and rounding integers
• Order of operations with integers

Content:

MA4-INT-C-01

Compare and order integers

• Recognise and describe the direction and magnitude of integers
• Identify and represent integers on a number line
• Compare the relative value of integers using the less than (<) and greater than (>) symbols
• Order integers

Add and subtract positive integers

• Add and subtract integers with and without the use of digital tools
• Construct a directed number sentence to model a situation
• Examine different meanings (position or operation) for the + and - signs, depending on context

Multiply and divide integers

• Represent multiples of negative integers as repeated addition
• Multiply and divide positive and negative integers with and without the use of digital tools

Apply the four operations to integers

• Solve problems involving grouping symbols with integers
• Apply the order of operations to evaluate expressions involving integers, with and without the use of digital tools