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Christmas Subtraction Triangles
1 2 3 Pre & Primary Essentials Games & Activities Mathematics Number & Place Value 11 Pages

Christmas Subtraction Triangles

Students will subtract one number from another in these cute little Christmas themed subtraction triangles for lower primary.

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Learning goals

  • We are learning to use inverse relationships between addition and subtraction to find unknown values using different strategies.
  • We are learning to use counting-on and partitioning to understand the connection between addition and subtraction.
  • We are learning to use number sentences and partitioning to demonstrate the connection between addition and subtraction.
  • We are learning to recall addition facts to 20 and apply to related subtraction facts using a range of strategies.
  • We are learning to recall addition and subtraction facts to 20 and to develop mental strategies for larger numbers.
  • We are learning to use a range of mental strategies to solve simple addition and subtraction problems.

Curriculum alignment

MA1-1WM old Describes mathematical situations and methods using everyday and some mathematical language, actions, materials, diagrams and symbols MA1-2WM old Uses objects, diagrams and technology to explore mathematical problems MA1-3WM old Supports conclusions by explaining or demonstrating how answers were obtained MA1-5NA old Uses a range of strategies and informal recording methods for addition and subtraction involving one- and two-digit numbers MA2-1WM old Uses appropriate terminology to describe, and symbols to represent, mathematical ideas MA2-2WM old Selects and uses appropriate mental or written strategies, or technology, to solve problems MA2-3WM old Checks the accuracy of a statement and explains the reasoning used MA2-5NA old Uses mental and written strategies for addition and subtraction involving two-, three-, four- and five-digit numbers MA1-4NA old Applies place value, informally, to count, order, read and represent two- and three-digit numbers MA2-AR-02 new Completes number sentences involving addition and subtraction by finding missing values MA1-CSQ-01 new Uses number bonds and the relationship between addition and subtraction to solve problems involving partitioning MA2-AR-01 new Selects and uses mental and written strategies for addition and subtraction involving 2- and 3-digit numbers MA2-RN-02 new Represents and compares decimals up to 2 decimal places using place value MA2-RN-01 new Applies an understanding of place value and the role of zero to represent numbers to at least tens of thousands
VCMNA107 Solve simple addition and subtraction problems using a range of efficient mental and written strategies VCMNA103 Investigate number sequences, initially those increasing and decreasing by twos, threes, fives and ten from any starting point, then moving to other sequences VCMNA133 Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation VCMNA139 Use a function machine and the inverse machine as a model to apply mathematical rules to numbers or shapes VCMNA132 Recognise and explain the connection between addition and subtraction VCMNA106 Explore the connection between addition and subtraction

Australian Curriculum covers QLD / SA / WA / NT / TAS / ACT.

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