Copyright © Swun MathCopyright © Swun Math Grade 8 Unit 3 Lesson 4 P TEInput/Model
(Teacher Presents)
Directions: Simplify the expression. Write solution in scientific notation.
- (9.37 × 10-7 ) – (1.421 × 10-7)
Solution:- (9.37 – 1.421) × 10-7
- 7.949 × 10-7
Answer: 7.949 × 10-7
- (5.312 × 101 ) + (6.421 × 10^2 )
Solution:- 5.312 × 10^1 + 6.421 × 10^1 × 10^1
• 5.312 × 10^1 + 64.21 × 10^1
• (5.312 + 64.21) × 10^1
- 69.522 × 10^1 not in scientific notation.
- 6.9522 × 10^2