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Seven Square Numbers
Add the sum of the squares of four numbers between $10$ and $20$ to the sum of the squares of three numbers less than $6$ to make the square of another, larger, number.
Why do this problem?
This problem is suitable for learners who need a challenge when working with square numbers.
Key questions
Have you made a list of squares of the relevant numbers?
Have you remembered that $1$ is a square number?
What is the square root of that number?
Possible extension
Learners who need even more of a challenge could try
Cycling squares.
Possible support
Suggest making a list of squares of the relevant numbers, remembering that $1$ is a square number.