1. 15

2. −7

3. 9, −8, −9

4. −15, −21, 0

5. |−62| =

6. |32| =

7. 4 + (−7) =

8. − =

9. −23 + (−17) =

10. 42 + (−51) =

11. −17 + (−12) =

12. 22 + (−8) + 3 =

13. − (−7) =

14. Write the definition of subtraction in words and symbols.

15. 9 − 15 =

16. −7 − 2 =

17. 3 − (−6) =

18. −14 − (−7) =

19. 12 − (−12) =

20. 72 − (−58) − 62

21. 29 − (−8) =

22. −4 − 9 =

23. 8 − 14 =

24. 4(−6) =

25. −7(2)(6) =

26. 9(−12)(5)(−8)

27. State the rule for multiplying integers based on the signs of the factors.

28. −48 ÷ 6 =

29. −72 ÷ (−4)

30. 125 = −5

31. (−15 − 13) ÷ −7

32. −56 ÷ (−4) ÷ (−2)

33. −9 + 3(−4) − 6

34. 9 • 9 • 9 • 9

35. x • x • x • x • x • x
x • x • x • x • x • x • x

36. 1
m • m • m • m • m

37. x8 • x2

38. n9 n5

40. y6 • y2 • y−4

41. (−3)4 − 3

42. −34 − 3

43. 43 • 32

44. 3 • 6 + (−5) − 7

45. −21(4 + 5 • 2) + (−16)

46. |−8 + (−5)|(−2) + 6 ÷ 3

47. {[3 + 5(−2 − 9) − 8] − 3} ÷ 32

49. 749,000,000

50. 3.95 × 1012
= 3,950,000,000,000

51. 9.8 × 10−9 =

52. Give the mathematical significance of Daniel 1:17a.