Partition 3-digit numbers; place on a line - Problem-Solving Investigation - Year 3

Year 3 Place Value - Problem-Solving Investigations

These in-depth maths investigations are open-ended problem solving activities for Year 3 children. **In-depth Investigation 1: Three Coins** Using exactly three coins, children work out how many amounts can be made between £1 and £2. **In-depth Investigation 2: Money Bags** Children use their knowledge of counting in 10s to solve a problem involving money. **In-depth Investigation: Counter Place Value** Children place counters on a place value grid to make 3-digit numbers and then use logic to ensure they have made all the combinations. **In-depth Investigation: Lost Logic** Children use their knowledge of inverse operations to solve a logic problem. **In-depth Investigation: Guess my Number** Children use their knowledge of 3-digit numbers, rounding, and properties of numbers to work out a mystery number. These investigations will develop maths meta-skills, support open-ended questioning and logical reasoning, and enable children to learn to think mathematically and articulate mathematical ideas. These problem-solving investigations come from our [Year 3 Maths Blocks](https://www.hamilton-trust.org.uk/maths/year-3-maths/). Each Hamilton maths block contains a complete set of planning and resources to teach a term’s worth of objectives for one of the National Curriculum for England’s maths areas.