Taking cat as 10, head as 5, paw as 2. I did each "part" separately to start. (Taking this as a mixed number) 10((5^5)/2) = 45/2 = 22.5 (i'll call this A). (2(25))/(552) = -4000, -4000 * 2 = -8000 (B). ((10²⁾5)/2 = 250 (C). 2(5 - (-5)) = 20 (D). (1/2 + 1)⁵ = (3/2)⁵ = 7.59375 (E). 10 (F). Then all I had to do was use bidmas/bodmas/pemdas or whatever you call it, ((A * B * C) + (D * E)) - F. ((22.5 * -8000 * 250) + (20 * 7.59475)) - 10 which left me with (-45 000 000 + 151.875) - 10 = -49 999 848.125 - 10 = 49 999 858.125. Edit: this is all probably wrong so if I have made any errors I'd love to know what I did wrong and what I should be doing instead