1. Year 3-5 Open-ended Mathematics Activities
Patterns & Algebra

2. Patterns Which number in this group does not belong? Why? 15 2 8 13 16
Open-ended Maths Activities
by Peter Sullivan & Pat Lilburn

3. I doubled a number and kept doubling so that the original number was doubled four times. What might the answer be?
Patterns
Open-ended Maths Activities
by Peter Sullivan & Pat Lilburn

4. My dog is half as old as me. How old might I be and how old is the dog?
Patterns
Open-ended Maths Activities
by Peter Sullivan & Pat Lilburn

5. Record a number sequence of at least eight numbers where each new number is five more than the previous number.
Patterns
Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak

6. I am thinking of a number so that when I take a quarter of it and subtract 7 the answer is an odd number between 0 and 20. What number might I be thinking of?
Algebra
Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak

7. Make this number sentence true in as many ways as you can- ____ x ____ = ____ x ____
Algebra
Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak

8. Ben grouped the following numbers together : 21, 15, 45, 24, 6 and 30 What other numbers might belong in Ben’s group? Why?
Patterns
Teaching and Assessing Maths through Open-ended Activities by Pat Lilburn & Irene Sawczak