1. Adding Numbers in Scientific Notation

2. Find the Sum.
4.2 × (6.5 × )

3. Answer
1.07 × 10 5

4. Find the Sum
6.5 × ( 3.9× )

5. Answer
4.55× 10 6

6. Find the Sum.
7.3 × (3.2× 10 2 )

7. Answer (note – exponent should be 5 not 3)
(7.3032× 10 3 )

8. Find the sum
3.51 × (8.132 × 10 5 )

9. Answer
( × 10 6 )

10. Find the Sum
5.67 × (3.46× 10 4 )

11. Answer
(5.7046× 10 6 )

12. Find the sum.
6.82× (2.345× 10 5 )

13. Answer
(2.4132× 10 5 )

14. Find the Sum
1.132× (2.23× 10 4 )

15. Answer
( × 10 7 )

16. Find the difference
7.34× −(2.3× 10 4 )

17. Answer
(5.04× 10 4 )

18. Find the Difference
4.245× −(1.35× 10 7 )

19. Answer
(2.895× 10 7 )