3x10^5+22x10^4
60x10^-3 - 2x10^-4
5x10^-10+12x10^-11
(70x10^-3)(2x10^-4)
(7x10^12)(12x10^11)
7x10^12+12x10^11
95x10^-5 - 3x10^-6
18x10^-6 -20x10^-5
35x10^-5 - 4x10^-4
(102x10^5)(98x10^6)
102x10^5 + 98x 10^6
8x10^8+85x10^7
(2x10^3)(3x10^5)
2x10^3+3x10^4
(3x10^-5)(22x10^-4)
16.2x10^-10
108.2x10^6
1.40x10^-5
9.996x10^14
0.6x10^9
6.6x10-8
18.2x10^-5
3.2x10^4
8.2x10^12
5.2x10^-5
8.4x10^24
59.8x10^-3
16.5x10^8
94.7x10^-5
.5x10^-4