Interactive Maths Links for the Australian Curriculum
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solve addition and subtraction word problems involving whole numbers of any size, including problems that require more than one operation, eg 'I have saved $40 000 to buy a new car. The basic model costs $36 118 and I add tinted windows for $860 and Bluetooth connectivity for $1376. How much money will I have left over?'
* select and apply appropriate mental and written strategies, with and without the use of digital technologies, to solve unfamiliar problems (Problem Solving)
* explain how an answer was obtained for an addition or subtraction problem and justify the selected calculation method (Communicating, Problem Solving, Reasoning)
* reflect on their chosen method of solution for a problem, considering whether it can be improved (Communicating, Reasoning)
* give reasons why a calculator was useful when solving a problem (Communicating, Reasoning)
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record the strategy used to solve addition and subtraction word problems
* use selected words to describe each step of the solution process (Communicating, Problem Solving)
Lunch Lady
Mathplayground Word Problem Database
Drop and Drag Addition and Subtraction
SC Web Addition Game
Mad Money Game
Bricks Game (Tricky and Difficult Levels)
Bargain Hunt Adding Game
Change Game L3
Number Nut
(select Activities, then Addition or Subtraction)
Balancing Act – L3
Number Stacker
CONTENT
Students:
Select and apply efficient mental and written strategies and appropriate digital technologies to solve problems involving addition and subtraction with whole numbers (ACMNA123)
OUTCOMES
A student:
› describes and represents mathematical situations in a variety of ways using mathematical terminology and some conventions MA3-1WM
› selects and applies appropriate problem-solving strategies, including the use of digital technologies, in undertaking investigations MA3-2WM
› gives a valid reason for supporting one possible solution over another MA3-3WM
› selects and applies appropriate strategies for addition and subtraction with counting numbers of any size MA3-5NA
Addition and Subtraction 2
** NOTE - Covering many of the pointers below to achieve outcomes is dependent on the focus of instruction. As such many of the activities below can be used for a variety of purposes, or to cover a range of pointers. I have therefore grouped them rather than repeating them. Instead, where I have been able to find them, I have listed instructional links below pointers where they are specifically applicable.
Worksheets – whilst the site is designed to share interactive site links, I have included a few worksheet sites as their display could be used on Interactive White Boards or individual computers as practise activities without the need for printing - please see the Stage 3 Home Page.
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