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Assessment resource Thinking addition: 2-digit plus 1-digit: assessment

TLF ID L9927

Test your ability to turn a word problem into a 2-digit plus 1-digit equation. Solve the equation without a calculator. For example, use a partitioning tool to help solve the sum 15+8. Choose which strategy you used to solve the problem. View and print a report of your results. This assessment object is the first in a series of two objects that progressively increase in difficulty.

Educational details

Key learning objectives
  • Students write addition equations from word problems.
  • Students use partitioning strategies to solve addition problems.
  • Students identify the strategy used to solve addition problems.
Educational value
  • Assesses student’s ability to interpret mathematical word problems.
  • Assesses student’s ability to solve addition problems.
  • Includes structured support in the form of an interactive model for addition.
  • Caters for a range of abilities by presenting new problems based on student performance on previous problems.
  • Randomises the construction of tasks, making the object reusable.
  • Includes a printable report of the student's performance.
Year level


Learning area
  • mathematics
  • Mathematics/Number and algebra
    Student activity
    • Interactives;
    • Experiment;
    • Analysis;
    • Modelling

    Other details

    • Subject matter expert
    • Name: Gill Thomas
    • Address: Dunedin 9010 New Zealand
    • Educational validator
    • Name: Gayl O'Connor
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL:
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL:
    • Script writer
    • Name: Rebecca Cox
    • Organisation: CWA New Media
    • Address: Wellington 6011 New Zealand
    • URL:
    • Technical implementer
    Access profile
    • Colour independence
    • Device independence
    • Hearing independence
    • Generic
    Learning resource type
    • Assessment resource
    • Microsoft Internet Explorer - minimum version: 8.0 (MS-Windows) - maximum version: 9.0 (MS-Windows)
    • Firefox - minimum version: (MS-Windows)
    • Safari - minimum version: 5.1 (MacOS)
    Operating systems
    • MacOS - minimum version: 10.6
    • MS-Windows - minimum version: XP - maximum version: 7
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.