Problem-Solving Investigation: Add/subtract 11, 12, 21, 22, etc (Year 2 More Addition & Subtraction)

Year 2 More Addition and Subtraction: Add/subtract 11, 12, 21, 22, etc. to/from 2-digit numbers.

This in-depth Maths Investigation will develop maths meta-skills, and enable children to learn to think mathematically and articulate mathematical ideas.

In-depth Investigation: Count Down to Zero
Children take turns to subtract 1, 2 or 3 from a 2-digit number greater than 20. They use strategies to help them win a game by reaching zero first.

This problem-solving investigation is part of our Year 2 More Addition and Subtraction block. Each Hamilton maths block contains a complete set of planning and resources to teach a terms worth of objectives for one of the National Curriculum for England’s maths areas.