Saved Bookmarks
| 1. |
Perform following calculations and express results in scientific notations (exponential notations),i. (1.5 × 10-6) – (5.8 × 10-7) ii. (9.8 × 10-3) – (8.8 × 10-3) iii. (6.5 × 10-8) – (5.5 × 10-9) |
|
Answer» To perform subtraction operation, first the numbers are written in such a way that they have the same exponent. Then subtraction of coefficients can be done. i. (1.5 × 10-6) – (5.8 × 10-7) = (1.5 × 10-6) – (0.58 × 10-6) = (1.5 – 0.58) × 10-6 = 0.92 × 10-6 = 9.2 × 10-7 ii. (9.8 × 10-3) – (8.8 × 10-3) = (9.8 – 8.8) × 10-3 = 1.0 × 10-3 iii. (6.5 × 10-8) – (5.0 × 10-9) = (6.5 × 10-8) – (0.50 × 10-8) = (6.5 – 0.50) × 10-8 = 6.0 × 10-8 |
|