333332

222221

766555

54 444

151413121110

1099887

323028272625

242221201816

3

Grid 1Grid 1

4443333

3222221

9988776

665 555

22212019181716

15141312111010

39383635343332

30282726252423

605655545251

49484645444240

4

50

Grid 2

®

Copyright © Wright Group/McGraw-Hill

Skill Finding factors of a number

Materials□ counters (48 for Grid 1; 70 for Grid 2)

□ 2 calculators

□ 2 pencils and 2 sheets of paper

Players 2

Object of the Game To have the higher total score.

How to Play1. Player 1 chooses a 2-digit number

on the grid, covers it with a counter, and records the number. This is Player 1’s score for the round.

2. Player 2 covers all of the factors of that number on the same grid. A factor may be covered only once during a round. Player 2 finds and records the sum of the factors. This is Player 2’s score for the round.

3. If Player 2 missed any factors, Player 1 can cover them with counters and add them to his or her score.

4. Players switch roles for each round.

5. Any covered number may not be used again.

6. The first player in a round may not cover a 1-digit number unless no other numbers are available.

7. Play continues until all numbers have been covered. Players then use calculators to find their total scores. The player with the higher score wins.

Factor Captor

88EM3_EGB_G5-6_FC_R.indd 1EM3_EGB_G5-6_FC_R.indd 1 2/17/09 10:43:32 AM2/17/09 10:43:32 AM