Year 3-5 Mathematics Open-ended Activities Number & Place Value

Place Value How many ways can you rename 1265?” Open-ended Maths Activities by Peter Sullivan and Pat Lilburn

How many numbers can you make using the digits 1, 2, 3 and 4 How many numbers can you make using the digits 1, 2, 3 and 4? You can only use each digit once in each number.” Place Value Open-ended Maths Activities by Peter Sullivan and Pat Lilburn

A number has been rounded off to 1200. What might the number be?” Place Value Open-ended Maths Activities by Peter Sullivan and Pat Lilburn

Create a pattern that starts at 91 that someone else can continue.” Number Open-ended Maths Activities by Peter Sullivan and Pat Lilburn

The number 8 is halfway between two numbers The number 8 is halfway between two numbers. What might those two numbers be?” Number Open-ended Maths Activities by Peter Sullivan and Pat Lilburn

I have some marbles. I give some away to my friends and I am left with 15. How many marbles might I have started with and how many might I have given away?” Operations Open-ended Maths Activities by Peter Sullivan and Pat Lilburn

Operations What might the missing numbers be?” ___ x ___ = 50 Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak

Describe how you would subtract 19 from 83 in your head Describe how you would subtract 19 from 83 in your head. What other subtractions could you do using a similar method?” Operations Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak

I am thinking of a number between 8000 and 9000 I am thinking of a number between 8000 and 9000. Its hundreds digit is 5 and its ones digit is 2. What might the number be?” Place Value Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak

The number 17 cannot be divided equally by either 2 or 3 The number 17 cannot be divided equally by either 2 or 3. What other numbers are not divisible by either 2 or 3?” Operations Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak