1. 10^5 - 10 x 10 x 10 x 10  10 = 100,000

2. 5^4 - 5 x 5 x 5 x5 = 5000

3. (13)^4 - (13) x (13) x (13) x (13) = 28561

4. 2^10 - 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 1024

5. 100^3 - 100 x 100 x 100 = 1000000

6. 6 + 2 x 8^4 = 4104

7. (25 + 11) x 2 = 72

8. 10^2 - 16 / 8 = 10.5

9. 3 + 6^3 x (5 + 4) / 3 - 7 = 642

10. (96 / 12 ) + 14 x (12^2 + 8) / 2 = 1672

11. 0

12. -10

13. ?

14. ?

15. ?

16. <

17. >

18. <

19. >

20. >

21. -8

22. 35

23. -221

24. -31

25. 6

26. 18

27. 84

28. -98

29. -24

30.14

A. ?

B.

- How much did she finally lose or gain?

- (-3) + 7 - 2 = N

- (-3) + 7 - 2 = 2

C.

- How many persons will be infected in 3 hours?

- 60^3 / 10 = N

- 60 x 60 x 60 = 216 000

- 216 000 / 10 = 21600

D.

-Among the two students, who answered correctly?

- 40 - 2 x [(8 x 3 / 6)] +12 / 2 = N

40 - 2 x [(8 x 3 / 6)] +12 / 2 = 38 ( so none of them guessed right)

SORRY IF I TOOK TOO LONG TO ANSWER