In Addition and Subtraction, Classroom Resources, Number and Algebra

This activity is designed to see if students are able to apply their addition strategies in order to find the total of their collection of cards. Often students will have a method for adding two numbers, but when asked to add a list of numbers they revert to less efficient methods.


  • Use efficient strategies to find the total when adding a collection of playing cards
  • Recall and apply addition facts
  • Identify and continue number patterns resulting from addition
  • Explain strategy used to find total


Curriculum Connections: VICTORIAN CURRICULUM F-10
Number & Place Value – Year 3
  • Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation(VCMNA133)
  • Recognise and explain the connection between addition and subtraction (VCMNA132)


At the end of this lesson students should be able to answer the following questions
  • What strategy are you using to collect the cards?
  • Is this the most effective strategy?
  • What strategies can help you add the total of your collection of cards?
  • Is there a more efficient strategy?
  • Does it matter in what order you add the cards?
  • What is the most efficient way to add the cards?
  • Can you combine two of the numbers then count on?
  • Can skip counting or multiplication facts help you?
  • What other strategies could you use?
  • Have you tried keeping a running total?


For more information, please download the attached lesson plan.

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