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Prime Patrol

A comprehensive 4th-grade math game center where students navigate space sectors by identifying prime and composite numbers up to 100, factoring values, and testing divisibility.

Prime Patrol

A comprehensive 4th-grade math game center where students navigate space sectors by identifying prime and composite numbers up to 100, factoring values, and testing divisibility.

Prime Ladders Board Game

Prime Ladders & Composite Chutes

Numbers 1–100

4th Grade Math Adventure • 2 to 4 Players

🪜 Prime Ladder (Climb Up!) 🛝 Composite Chute (Slide Down!)

Rules: 1. Roll die & move along the 1–100 snaking path. 2. Say if your number is Prime or Composite. 3. Land on a Prime Ladder? Prove it to climb UP! Land on a Composite Chute? Slide DOWN!

First to 100 Wins!

#100

WIN!

FINISH

99 99 Comp

98 🛝

98 ↓ SLIDE 78

97 97 Prime

96 96 Comp

95 95 Comp

94 🪜

94 Top of 73

93 93 Comp

92 92 Comp

91 🛝

91 ↓ SLIDE 66

81 81 Comp

82 82 Comp

83 83 Prime

84 🪜

84 Top of 59

85 85 Comp

86 86 Comp

87 🛝

87 ↓ SLIDE 55

88 88 Comp

89 89 Prime

90 90 Comp

80 80 Comp

79 🪜

79 Top of 41

78 78 Slide End

77 🛝

77 ↓ SLIDE 44

76 76 Comp

75 75 Comp

74 74 Comp

73 🪜

73 ↑ CLIMB 94

72 72 Comp

71 71 Prime

61 61 Prime

62 62 Comp

63 63 Comp

64 64 Comp

65 65 Comp

66 66 Slide End

67 67 Prime

68 68 Comp

69 69 Comp

70 70 Comp

60 60 Comp

59 🪜

59 ↑ CLIMB 84

58 58 Comp

57 🛝

57 ↓ SLIDE 33

56 56 Comp

55 55 Slide End

54 54 Comp

53 53 Prime

52 🪜

52 Top of 29

51 51 3×17

41 🪜

41 ↑ CLIMB 79

42 42 Comp

43 43 Prime

44 44 Slide End

45 45 Comp

46 46 Comp

47 🪜

47 Top of 13

48 48 Comp

49 🛝

49 ↓ SLIDE 16

50 50 Comp

40 40 Comp

39 39 3×13

38 🪜

38 Top of 2

37 37 Prime

36 36 Comp

35 35 Comp

34 34 Comp

33 33 Slide End

32 32 Comp

31 31 Prime

21 21 Comp

22 22 Comp

23 23 Prime

24 24 Comp

25 25 Comp

26 26 Comp

27 🛝

27 ↓ SLIDE 6

28 28 Comp

29 🪜

29 ↑ CLIMB 52

30 30 Comp

20 20 Comp

19 19 Prime

18 18 Comp

17 17 Prime

16 16 Slide End

15 15 Comp

14 14 Comp

13 🪜

13 ↑ CLIMB 47

12 12 Comp

11 11 Prime

#1

START

Neither

2 🪜

2 ↑ CLIMB 38

3 3 Prime

4 4 Comp

5 5 Prime

6 6 Slide End

7 7 Prime

8 8 Comp

9 9 Comp

10 10 Comp

Tokens:

P1

P2

P3

P4

Chute Alert: 49 (7×7), 57 (3×19), 77 (7×11), 87 (3×29), 91 (7×13) are COMPOSITE chutes!

Prime Patrol Action Cards

Prime Patrol: Number Probe Cards

Deck Part 1 • Cut along dashed borders • Identify, Factor, & Classify

Print & Cut 6 Cards

PROBE #01 Value: 1 Star

51

Cosmic Sector 51

Mission Task:

Test divisibility: Does 3 divide into 51? (Sum of digits: 5 + 1 = ?)

[ ] PRIME [ ] COMPOSITE

Prove: Write all factor pairs on your log sheet!

PROBE #02 Value: 1 Star

43

Cosmic Sector 43

Mission Task:

Check factors: Can 2, 3, or 5 divide evenly into 43?

[ ] PRIME [ ] COMPOSITE

Prove: Write all factor pairs on your log sheet!

PROBE #03 Value: 1 Star

91

Cosmic Sector 91

Mission Task:

Trap Alert! Test if 7 divides evenly into 91. What is 91 ÷ 7?

[ ] PRIME [ ] COMPOSITE

Prove: Write all factor pairs on your log sheet!

PROBE #04 Value: 1 Star

61

Cosmic Sector 61

Mission Task:

Investigate 61: Are there any factor pairs other than 1 × 61?

[ ] PRIME [ ] COMPOSITE

Prove: Write all factor pairs on your log sheet!

PROBE #05 Value: 1 Star

87

Cosmic Sector 87

Mission Task:

Digital sum check: 8 + 7 = 15. Since 15 is divisible by 3, is 87?

[ ] PRIME [ ] COMPOSITE

Prove: Write all factor pairs on your log sheet!

PROBE #06 Value: 1 Star

97

Cosmic Sector 97

Mission Task:

Test all primes under 10 (2, 3, 5, 7). Does any factor divide into 97?

[ ] PRIME [ ] COMPOSITE

Prove: Write all factor pairs on your log sheet!

Prime Patrol Math Center • Set A: Number Probes Use with Mission Log Worksheet or Board Game

Prime Patrol: Clue & Riddle Cards

Deck Part 2 • Match the clue to the number • Card Sort Game Mode

Mystery Clues

CLUE RIDDLE #07 Reward: 2 Stars

"I am the only EVEN prime number in the entire universe. All other even numbers have 2 as a factor."

Identify Mystery Number:

Riddle Card

CLUE RIDDLE #08 Reward: 2 Stars

"I am an odd number under 50. People think I am prime, but I am a square number: 7 × 7 = me!"

Identify Number & Factors:

Square Trap Card

CLUE RIDDLE #09 Reward: 2 Stars

Prime Ladders Mission Log

Prime Ladders • Flight Log

Chutes & Ladders Math Log • Prime & Composite Investigation

Numbers 1–100 • Grade 4

Player Name:

Game Partners:

Date:

Flight Turn Log (Record your moves, classify, and track climbs & slides)

🪜 Prime Ladder: Climb Up • 🛝 Composite Chute: Slide Down

Turn	Classification	Action Taken
1	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
2	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
3	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
4	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
5	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
6	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
7	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay
8	[ ] P [ ] C	🪜 Climb / 🛝 Slide / Stay

Scratchpad: Factor Trees & Divisibility Check (Test 2, 3, 5, 7) Show work for tricky chute traps (like 49, 51, 87, 91)

Scratchpad 1: ________

Scratchpad 2: ________

Scratchpad 3: ________

🪜 Ladders Climbed:

🛝 Chutes Slipped:

Final Board Square:

Prime Ladders Master Key

Prime Ladders: Master Referee Key

Teacher & Student Referee Guide • Chutes & Ladders Edition • Numbers 1–100

25 Primes Under 100 Self-Check Center

1–100 Number Master Grid

Prime (25) Composite (74) Neither (1)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

🪜 Official Prime Ladders (Climb Up)

• Space 2 → Climbs to 38: 2 is the ONLY even prime!
• Space 13 → Climbs to 47: Prime (factors 1, 13 only)

"I am between 20 and 30. My factors are 1, 3, 9, and 27. What number am I, and am I prime or composite?"

Identify Number & Classification:

Factor Clue Card

CLUE RIDDLE #10 Reward: 2 Stars

"I am the smallest two-digit prime number. Both my tens digit and ones digit are the exact same number."

Identify Mystery Number:

Riddle Card

ACTION BOOST #11 Warp Drive

"PRIME WARP BOOST! Name 3 prime numbers that are greater than 70 to instantly move ahead 3 spaces!"

Write 3 Primes > 70:

Action Card

DEFENSE SHIELD #12 Cosmic Shield

"PRIME SHIELD! Are numbers 0 and 1 prime or composite? Explain why to block any penalty on your next turn!"

Explain Rule for 0 & 1:

Shield Card

Prime Patrol Math Center • Set B: Cosmic Clues & Actions Answers documented on Master Answer Key

• Space 29 → Climbs to 52: Prime (factors 1, 29 only)

• Space 41 → Climbs to 79: Prime (factors 1, 41 only)

• Space 59 → Climbs to 84: Prime (factors 1, 59 only)

• Space 73 → Climbs to 94: Prime (factors 1, 73 only)

🛝 Official Composite Chutes (Slide Down)

• Space 27 → Slides to 6: Composite (3 × 9)
• Space 49 → Slides to 16: Composite (7 × 7 trap!)
• Space 57 → Slides to 33: Composite (3 × 19; sum=12)
• Space 77 → Slides to 44: Composite (7 × 11)
• Space 87 → Slides to 55: Composite (3 × 29; sum=15)
• Space 91 → Slides to 66: Composite (7 × 13 trap!)
• Space 98 → Slides to 78: Composite (2 × 49)

Divisibility Rules for 4th Graders

Rule for 2: Even ending (0, 2, 4, 6, 8) → Composite (except 2).
Rule for 3: Sum digits: 51(5+1=6), 87(8+7=15) → Divisible by 3!
Rule for 5: Ends in 0 or 5 → Composite (except 5).
Special rule: 0 and 1 are NEITHER prime nor composite.

Card Deck Quick Solutions

• #1 (51): Comp (3×17)

• #2 (43): Prime

• #3 (91): Comp (7×13)

• #4 (61): Prime

• #5 (87): Comp (3×29)

• #6 (97): Prime

• #7: 2 (only even prime)

• #8: 49 (7×7 square)

• #9: 27 (factors 1,3,9,27)

• #10: 11 (smallest 2-digit)

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