( 3,6 × 10 to the sixth power)_ (5,2×10 to the fifth power)
3.6 * 10^6 - 5.2 * 10^5
= .4 * 10^5(90 - 13)
= 30.8 * 10^5
= 3.08 * 10^6
or
3.6 x 10^6 = 3600000
5.2 x 10^5 = 520000
3600000-520000 = 3080000= = 3.08 x 10^6
or
3.6 * 10^6 - 5.2 * 10^5
= 3.6 * 10^6 - 0.52 * 10^6
= 3.08*10^6