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Focus Achievement Objectives
NA3-7: Generalise the properties of addition and subtraction with whole numbers.
NA4-2: Understand addition and subtraction of fractions, decimals, and integers.
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Addition and subtraction with whole numbers

Level Three
Number and Algebra
Units of Work
This unit explores situations that involve addition and subtraction of whole numbers. Students are expected to choose among a range of strategies, based on their understanding of place value.
  • Choose appropriate strategies such as using standard place value, using tidy numbers with compensation, and equal adjustments when solving addition and subtraction problems with whole numbers.
  • Choose correct operations to solve joining, separating, and difference problems with whole numbers.
  • Record...
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Addition and Subtraction Pick n Mix

Level Three
Number and Algebra
Units of Work
In this unit we look at a range of strategies for solving addition and subtraction problems with whole numbers. This supports students anticipating, from the structure of a problem, which strategies might be best suited to solving it.
  • Mentally solve whole number addition and subtraction problems using a range of strategies.
  • Use appropriate techniques to record mathematical thinking.
  • Predict the usefulness of strategies for given problems.
  • Evaluate the effectiveness of selected strategies.
  • Generalise the types of problems that are...
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Expanding Horizons

Level Three
Number and Algebra
Figure It Out activities
This is a level 3 number activity from the Figure It Out series. It relates to Stage 6 of the Number Framework.A PDF of the student activity is included.

use rounding and estimation to solve addition problems

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Tracking Toroa

Level Three
Number and Algebra
Figure It Out activities
This is a level 3 number activity from the Figure It Out series. It relates to Stage 6 of the Number Framework. A PDF of the student activity is available.

solve addition problems on a number line

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