Name _________________________

Unit 2 Review

Tell if the numbers are prime or composite.

1. 41                        2. 22                        3. 79                        4. 91

List all the factors of the following numbers.

5. 56

6. 36

Make a factor tree.

7.          24                                                        8.         48          

Find the GCF of the following sets of numbers.

9. 30 and 40                                                10. 16 and 10

11. 18 and 36                                        12. 16, 24, and 40

Write two equivalent fractions for the fractions listed below.

13. ⅞                           14. ⅚                        15. ½                        16. ⅗

Tell whether or not the pairs listed below are equivalent (true or false).

17. 5/14 and 10/28                        18. 3/7 and 12/27

Simplify the following fractions.

19. 12/18                20. 8/22                21. 13/20                22. 18/39

List the first five multiples.

23. 5                                        24. 8                                        25. 11

Find a common multiple and the LCM.

26. 4 and 7                                28. 5 and 12                                29. 10 and 12

Compare the following fractions using <, >, or =.

30. ⅘          ⅙                         31. ⅞       ⅘                                32. ⅙       ⅖

List the fractions in order from smallest to largest.

33. ⅘, ⅓, ⅕                                  34. ⅞, ½, ⅙                                35. ½, ⅓, ¼

Write the following mixed numbers into improper fractions.

36. 4⅓                37. 2⅚                38. 3⅖                39. 1⅛

Write the following improper fractions into mixed numbers.

40. 15/4                41. 18/7                42. 22/4                43. 12/5

Change the following decimals into fractions (simplified).

44. 0.4                45. 0.12                46. 2.4                47. 3.05                48. 1.4                49. 0.04