1 9 times 3 7 July 8, 2019 16 32 64 128 1 7 9 times 3 4 1 3 times 72 times 9 3 1 9 times 1 5 7 1 3 times 3.14 times 9 times 7 7 9 times 1 3 as a fraction 1 3 9 27 pattern rule