tolong jawab guys 1-10 pake caranya

[tex] {1}^{2} = 1 \\ {2}^{2} = 4 \\ {3}^{2} = 9 \\ {4}^{2} = 16 \\ {5 }^{2} = 25 \\ {6}^{2} = 36 \\ {7 }^{2} = 49 \\ {8}^{2} = 64 \\ {9}^{2} = 81[/tex]
ingat akar kuadrat ...
4 dan 6 ..
angka terakhir di jumlah hasil nya hasil 10 .. di youtube ada caranya

[tex] \sqrt{3025} = 55 \\ \sqrt{1521} = 39 \\ \sqrt{1936} = 44 \\ \\ \sqrt{7225} = 85 \\ \sqrt{6889} = 83 \\ \sqrt{676} = 26 \\ \sqrt{4096} = 64 \\ \sqrt{484} = 22 \\ \sqrt{3136} = 56[/tex]
no 4 kurang jelas ???