In this section you will practice adding, subtracting, multiplying, and dividing numbers in Scientific Notation.

Add 3.2 x 104 + 1.95 x 106

5 answers

Rewrite the numbers in the same exponent
3.2 x 10^4 + 1.95 x 10^6 = 0.032 x 10^6 + 1.95 x 10^6

Add the numbers
= 1.982 x 10^6
Add 2.56 x 10^-2 + 4.13 x 10-2
Rewrite the numbers in the same exponent
2.56 x 10^-2 + 4.13 x 10^-2 = 0.0256 x 10^0 + 0.0413 x 10^0

Add the numbers
= 0.067 x 10^0
= 6.7 x 10^-2
Subtract 1.95 x 106 - 3.2 x 104
Rewrite the numbers in the same exponent
1.95 x 10^6 - 3.2 x 10^4 = 0.195 x 10^7 - 0.032 x 10^7

Subtract the numbers
= 0.163 x 10^7
= 1.63 x 10^6