5.3 x 10 5 in scientific notation July 8, 2019 16 32 64 128 5.3 x 10 5 and 3.8 x10 4 in scientific notation 5.3 x 10 5 3.8 x 10 4 in scientific notation Sum of 5.3 x 10 5 and 3.8 x 10 4 in scientific notation What is the sum of 5.3 x 10 5 and 3.8 x10 4 in scientific notation Scientific notation math 7