inclusive means including 1 and 80 ok so we know that 1^2=1 so 1 is a perfect square just go up and square them untill 80 and the results is your answers 2^2=4, 4 is another 3^3=9 4^2=16 5^2=25 6^2=36 7^2=49 8^2=64 9^2=81 which is over
so the perfect squares from 1 to 80 are 1,4,9,16,25,36,49,64