In this worksheet, we will add together pairs of square numbers from the list:
1,  4,  9,  16,  25,  36,  49,  64,  81,  100

For Example:

Question -
How many different totals of two numbers can we find from the list :   1,  4,  9

Answer -

Different totals that can be formed are:

1 + 4 = 5,

1 + 9 = 10,

4 + 9 = 13