Year 1 Mathematics • Number

Addition and subtraction to 20

Build fluency with addition and subtraction within 20 using part-part-whole thinking, number facts and simple calculation strategies.

Each attempt contains 8 mixed questions: choosing, typing, fill-in-the-blank and arranging.

8Questions
48Question bank
0Best score

Curriculum focus: Australian Curriculum v9 • AC9M1N04

For mastery: repeat this skill across one week. On the same browser, the 48-question bank rotates across 6 attempts before starting a new cycle.

Online practice: arranging and select-all tasks are completed online. The PDF automatically prints only question formats that work well on paper.

  • addition facts within 20
  • subtraction facts within 20
  • missing parts and fact families
  • simple word problems
  • comparing calculation results