9x10 4 3x10 2 July 8, 2019 16 32 64 128 9 x 10 4 3 x 10 2 9x10 2 x 3x10 4 9x10 2 x 3x10 4 in standard form 9 x 10 3 2.3 x 10 4 9+10 = 11 9 - 9 x 10