How do you calculate 145.75 plus 2.3x10-1 in scientific notation?

Answer 1

Unless you're using a calculator, you have to have both in the same form before they can be added. 2.3 x 10-1 = 0.23 145.75 + 0.23 = 145.98 And if you like, = 1.4598 x 102============================== Here's the other approach: 145.75 = 1,457.5 x 10-1 1,457.5 x 10-1 + 2.3 x 10-1 = (1,457.5 + 2.3) x 10-1 = 1,459.8 x 10-1 = 1.4598 x 102