- Number and Algebra
- Measurement and Geometry
- Statistics and Probability

- Basic Number Skills

- Number and place value runs from F to 8
- Real numbers from 7 to 10A
- Using units of meaurement from F-10A

In the illustration on the right the substrands in Year 7, Number and Algebra are shown, with the student's progress indicated in each. As you will see below, each substrand has a number of Content Descriptions (Topics) and there are a number of tasks to complete in each topic.

As you can see our student has made some progress in Number and place value. The student clicks on any subtrand to view its Content Descriptions (Topics).

- ACMNA 149 on index notation
- ACMNA 150 on square roots
- ACMNA 151 on laws to aid computation
- ACMNA 280 on operations with integers

- Practice, untimed. The student can open and take the task as many times as she likes and take as long as she likes.
- Timed, result counts. The result earned here is what counts towards darkening the colours!
- Previous attempts. If the student or parent, teacher, tutor wishes, they can see every answer that was given to every question in every attempt. A diagnostic tool!

- The questions have different numbers each time the task is selected.
- Arithmetika calculates the solutions on the fly and does all the marking.