a) 8 3 . 2 4 = 2 3 3 . 2 4 = 2 13
b) 2 5 . 4 3 . 16 2 = 2 5 . 2 2 3 . 2 4 2 = 2 19
c) 8 2 . 2 3 . 4 5 = 2 3 2 . 2 3 . 2 2 5 = 2 19
d) 3 5 . 3 2 . 9 3 = 3 5 . 3 2 . 3 2 3 = 3 13
e) 3 4 . 27 3 . 81 2 = 3 4 . 3 3 3 . 3 4 2 = 3 21
f) 10 3 . 100 3 . 1000 = 10 3 . 10 2 3 . 10 3 = 10 12