Grade 4Reading: grades 3-4AdditionSubtractionMultiplicationSkip countingDivision
The Great Summer Camp Caper
The legendary Golden Pinecone trophy has vanished from the main lodge! Camp Director Higgins is in a panic. A clever Camp Prankster has hidden it somewhere on the island. We must solve the puzzles on the trails to find the culprit!
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | Favorite Camp Activity | Earned Camp Badge | Flashlight Grip | Camp Headwear | Camp Nuisance |
|---|---|---|---|---|---|
| Jane Goodall | kayak racing | nature guide | left handed flashlight | red sun visor | hates camp stew |
| Dora Marquez | kayak racing | expert climber | left handed flashlight | green camp cap | allergic to pollen |
| Bear Grylls | archery | craft master | left handed flashlight | red sun visor | allergic to pollen |
| Nancy Drew | knot tying | craft master | right handed flashlight | red sun visor | fear of frogs |
| Sherlock Holmes | campfire guitar | trail blazer | right handed flashlight | red sun visor | hates camp stew |
| Huckleberry Finn | kayak racing | star gazer | left handed flashlight | blue bandana | hates camp stew |
| Robin Hood | campfire guitar | craft master | right handed flashlight | red sun visor | hates camp stew |
| Indiana Jones | campfire guitar | star gazer | right handed flashlight | red sun visor | hates camp stew |
| Phileas Fogg | kayak racing | craft master | right handed flashlight | red sun visor | fear of frogs |
| Amelia Earhart | campfire guitar | nature guide | right handed flashlight | red sun visor | hates camp stew |
| Peter Pan | knot tying | craft master | left handed flashlight | blue bandana | fear of frogs |
| Sacagawea | kayak racing | star gazer | right handed flashlight | blue bandana | hates camp stew |
| Daniel Boone | archery | craft master | left handed flashlight | red sun visor | hates camp stew |
| Percy Jackson | campfire guitar | craft master | right handed flashlight | blue bandana | hates camp stew |
| Jacques Cousteau | campfire guitar | expert climber | right handed flashlight | red sun visor | fear of frogs |
| Marco Polo | map reading | craft master | right handed flashlight | red sun visor | hates camp stew |
| Wendy Darling | kayak racing | expert climber | right handed flashlight | blue bandana | hates camp stew |
| Tom Sawyer | map reading | craft master | right handed flashlight | green camp cap | allergic to pollen |
| Neil Armstrong | map reading | nature guide | left handed flashlight | green camp cap | hates camp stew |
| Sally Ride | campfire guitar | craft master | right handed flashlight | green camp cap | allergic to pollen |
| Nellie Bly | map reading | nature guide | right handed flashlight | blue bandana | hates camp stew |
Clue 1
Addition
The camp store was rummaged through. We found a notebook tallying the stolen snack bars. If we add up the chocolate bars and oat bars, we can open the locked drawer for Clue One.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
9151
4840
7200
6832
6530
4126
9256
3374
9451
T
9151
7200
6530
8979
9451
9256
2402
T
9151
4126
9451
T
9151
4126
6530
8108
4126
2816
7200
6530
6171 + 2980 =T
4032 + 2498 =R
1989 + 1385 =K
2939 + 3893 =P
5020 + 3959 =I
5211 + 2897 =G
4955 + 2245 =E
6609 + 2842 =S
1985 + 2855 =H
1333 + 1483 =Z
5849 + 3407 =N
2343 + 1783 =A
1213 + 1189 =O
0/13 letters found
Clue 2
Subtraction
We checked the canoe dock. Someone untied a bunch of canoes, and several drifted away down the river. Subtract the missing canoes from the starting fleet to unlock Clue Two.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
R
7460
3240
8945
8675
8783
8675
1070
2635
6034
5800
6034
8945
R
7460
3240
3407
8664
2172
3397
2635
6034
2172
2635
8783
8675
5800
8783
2172
R
7460
4766
8675
7855 - 395 =R
3548 - 2478 =A
11866 - 3202 =F
8681 - 6 =H
10845 - 1900 =G
6401 - 367 =D
13394 - 4611 =T
4122 - 715 =P
10271 - 4471 =E
5861 - 3689 =O
7340 - 4100 =I
6035 - 2638 =U
6474 - 3839 =N
7375 - 2609 =C
0/14 letters found
Clue 3
Multiplication facts (1-12)
At the archery range, arrows are stuck in equal rows on the target boards. Multiply the rows of arrows by the columns to decipher the secret code for Clue Three.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
L
63
20
16
77
144
15
99
9
L
63
99
16
21
144
132
28
12
77
20
9
70
84
77
99
70
21
108
20
32
9 × 7 =L
7 × 11 =T
9 × 12 =H
7 × 4 =P
2 × 6 =S
3 × 7 =C
11 × 9 =O
3 × 5 =B
12 × 11 =M
7 × 10 =U
12 × 7 =N
12 × 12 =A
1 × 9 =W
4 × 8 =D
2 × 8 =F
4 × 5 =E
0/16 letters found
Clue 4
Skip counting
We found muddy bootprints spaced out along the nature trail. Skip count by fives along the numbered stepping stones to find where the trail leads and get Clue Four.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
L
30
130
8
27
42
9
130
45
60
21
55
40
22
60
26
9
70
140
27
20
130
45
26
6
25
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50L
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48A
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10C
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26I
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160Y
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50V
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80B
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150E
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12F
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35K
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24H
0/18 letters found
Clue 5
Division facts (1-12) — the last clue
The prankster left a box of compasses to share among the search teams. Divide the total compasses equally among the camp cabins to reveal the final Clue Five.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Step 1 — solve these
20 ÷ 4 = ?
28 ÷ 7 = ?
12 ÷ 1 = ?
84 ÷ 12 = ?
9 ÷ 1 = ?
16 ÷ 8 = ?
66 ÷ 11 = ?
99 ÷ 9 = ?
5 ÷ 5 = ?
9 ÷ 3 = ?
90 ÷ 9 = ?
Step 2 — cross out the sentence with each answer
1.The villain tied up the cabinet with rope, then ran through the deep woods.
2.The villain played a loud distracting song, then searched the starry night sky.
3.The villain took a shortcut using a secret map, then ran through the deep woods.
4.The villain played a loud distracting song, then marked a fake path on the ground.
5.The villain played a loud distracting song, then ran through the deep woods.
6.The villain tied up the cabinet with rope, then searched the starry night sky.
7.The villain paddled away in a sneaky kayak, then ran through the deep woods.
8.The villain took a shortcut using a secret map, then glued the door shut with glue.
9.The villain paddled away in a sneaky kayak, then marked a fake path on the ground.
10.The villain took a shortcut using a secret map, then searched the starry night sky.
11.The villain tied up the cabinet with rope, then glued the door shut with glue.
12.The villain played a loud distracting song, then glued the door shut with glue.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Summer Camp Caper
Culprit: Marco Polo (map reading · craft master · right handed flashlight · red sun visor · hates camp stew)
- Clue 1 (Addition): "THE PRANKSTER IS NOT A STAR GAZER"6171 + 2980 = 9151 (T) · 4032 + 2498 = 6530 (R) · 1989 + 1385 = 3374 (K) · 2939 + 3893 = 6832 (P) · 5020 + 3959 = 8979 (I) · 5211 + 2897 = 8108 (G) · 4955 + 2245 = 7200 (E) · 6609 + 2842 = 9451 (S) · 1985 + 2855 = 4840 (H) · 1333 + 1483 = 2816 (Z) · 5849 + 3407 = 9256 (N) · 2343 + 1783 = 4126 (A) · 1213 + 1189 = 2402 (O)
- Clue 2 (Subtraction): "RIGHT HANDED GRIP FOUND ON THE TORCH"7855 - 395 = 7460 (R) · 3548 - 2478 = 1070 (A) · 11866 - 3202 = 8664 (F) · 8681 - 6 = 8675 (H) · 10845 - 1900 = 8945 (G) · 6401 - 367 = 6034 (D) · 13394 - 4611 = 8783 (T) · 4122 - 715 = 3407 (P) · 10271 - 4471 = 5800 (E) · 5861 - 3689 = 2172 (O) · 7340 - 4100 = 3240 (I) · 6035 - 2638 = 3397 (U) · 6474 - 3839 = 2635 (N) · 7375 - 2609 = 4766 (C)
- Clue 3 (Multiplication facts (1-12)): "LEFT A BOWL OF CAMP STEW UNTOUCHED"9 × 7 = 63 (L) · 7 × 11 = 77 (T) · 9 × 12 = 108 (H) · 7 × 4 = 28 (P) · 2 × 6 = 12 (S) · 3 × 7 = 21 (C) · 11 × 9 = 99 (O) · 3 × 5 = 15 (B) · 12 × 11 = 132 (M) · 7 × 10 = 70 (U) · 12 × 7 = 84 (N) · 12 × 12 = 144 (A) · 1 × 9 = 9 (W) · 4 × 8 = 32 (D) · 2 × 8 = 16 (F) · 4 × 5 = 20 (E)
- Clue 4 (Skip counting): "LEFT A RED SUN VISOR BY THE DOCK"Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50 = 30 (L) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (A) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (C) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (I) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (T) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (Y) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50 = 40 (V) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (B) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (E) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (F) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (K) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24 = 20 (H)
- Clue 5 (Division facts (1-12)): surviving statement (box 8) → Marco Polo20 ÷ 4 = 5 · 28 ÷ 7 = 4 · 12 ÷ 1 = 12 · 84 ÷ 12 = 7 · 9 ÷ 1 = 9 · 16 ÷ 8 = 2 · 66 ÷ 11 = 6 · 99 ÷ 9 = 11 · 5 ÷ 5 = 1 · 9 ÷ 3 = 3 · 90 ÷ 9 = 10
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Subtraction, Multiplication, Skip counting, Division
- Reading level
- grades 3-4
- Theme
- The Great Summer Camp Caper — set in Pinecone Island Camp
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects