Scientific notation is a way to write very large or very small numbers in a shortened form. It expresses numbers as the product of a number between 1 and 10 and a power of 10. Understanding scientific notation involves visualizing numbers on different scales and developing spatial reasoning skills. It also requires representing numbers using geometric models and identifying patterns in powers of 10. Mastering scientific notation relies on building mathematical models to conceptualize very large and very small quantities.

2. (scientific notation)
–

3. .

4. .

5. –
.
–
–

6. –
–
–
.
–
–

7. –
–
–
–
.

8. .
.

9. –
.
–

10. .
–

11. .
.
.

12. (front view)
(side view) (top
view)
–
. (visualization)
(spatial reasoning)

13. (geometric model)
–
.
–

14. . (pattern)
.

15. –
–
.
(mathematical model)
–
–
–
–
–

16. n
n

17. .
–
–
.
.
–

18. .
–
–
–
–

19. .
–
–
–
:
. :
–

20. –
–
–
–
–
–
–
.

21. –

22. –––––