Number Ninja — Addition & Subtraction to 100
In Year 2, children are expected to add and subtract numbers using concrete objects, pictorial representations, and mentally — including two two-digit numbers. Number Ninja presents increasingly challenging addition and subtraction questions within 100, covering two-digit plus one-digit, two-digit plus tens, and two-digit plus two-digit. Children pop the bubble showing the correct answer, building mental arithmetic fluency that is essential for the KS1 SATs.
- Curriculum link: Number — Addition & Subtraction
- Skills practised: mental addition and subtraction within 100, place value understanding
- 10 questions per round with interactive bubble-popping mechanic
