#48 p. 143, 1-5 & p. 146, 5-10, 19-23
#49 p. 145, 6-19 (use prime factorization to find the LCM)
#50 H, 4-6 on separate paper
#51 Two-sided worksheet (be prepared to share your clues with your partner)
#52 p. 150, 11-22,all then choose 23 or 24 and 26 or 27
#53 H, 4-7 on separate paper
#54 p. 149, 1-10, 25 and 29