Grade 4Reading: grades 3-4AdditionRoundingSubtractionMultiplicationDivision
The Great Camp Trophy Mystery
Someone snuck into the main lodge during campfire time and snatched the Golden Compass Trophy! Work through the clues to track down the thief.
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 | Camp Skill | Badge | Watch Wrist | Bandana Color | Distraction |
|---|---|---|---|---|---|
| Avery Forest | Shelter Building | First Aid Badge | Right Wrist | Green Bandana | Whistle Sound |
| Alex River | Fire Making | Archery Badge | Left Wrist | Blue Bandana | Whistle Sound |
| Quinn Hiker | Trail Blazing | Cooking Badge | Left Wrist | Red Bandana | Whistle Sound |
| Rowan Fern | Shelter Building | Canoeing Badge | Left Wrist | Red Bandana | Bug Spray Mist |
| Skyler Camp | Trail Blazing | Archery Badge | Right Wrist | Red Bandana | Whistle Sound |
| Morgan Lake | Trail Blazing | Cooking Badge | Right Wrist | Green Bandana | Whistle Sound |
| Riley Birch | Fire Making | Canoeing Badge | Left Wrist | Blue Bandana | Smores Craving |
| Kai Valley | Shelter Building | Archery Badge | Right Wrist | Red Bandana | Whistle Sound |
| Emerson Woods | Knot Tying | Astronomy Badge | Right Wrist | Blue Bandana | Whistle Sound |
| Ellis Prairie | Trail Blazing | First Aid Badge | Left Wrist | Red Bandana | Whistle Sound |
| Dallas Grove | Shelter Building | First Aid Badge | Right Wrist | Blue Bandana | Smores Craving |
| Peyton Stream | Fire Making | First Aid Badge | Left Wrist | Red Bandana | Bug Spray Mist |
| Finley Glen | Trail Blazing | Canoeing Badge | Left Wrist | Red Bandana | Whistle Sound |
| Casey Ridge | Fire Making | First Aid Badge | Left Wrist | Blue Bandana | Whistle Sound |
| River Stone | Knot Tying | Cooking Badge | Left Wrist | Red Bandana | Smores Craving |
| Sammy Scout | Map Reading | Cooking Badge | Left Wrist | Red Bandana | Whistle Sound |
| Hayden Marsh | Knot Tying | First Aid Badge | Right Wrist | Blue Bandana | Bug Spray Mist |
| Parker Cliff | Knot Tying | Astronomy Badge | Left Wrist | Red Bandana | Whistle Sound |
| Taylor Pine | Fire Making | Canoeing Badge | Left Wrist | Red Bandana | Bug Spray Mist |
| Reese Camp | Knot Tying | Astronomy Badge | Left Wrist | Green Bandana | Smores Craving |
| Sawyer Peak | Map Reading | Archery Badge | Right Wrist | Green Bandana | Whistle Sound |
Clue 1
Addition
Counselor Sam tallied up all the extra snacks packed by the cabins.
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
5619
5326
3320
6764
8114
5721
5721
6427
8114
8668
5695
2839
3320
4739
8668
2839
T
5619
5326
6427
6764
3320
6427
8668
6427
4739
T
5619
7002
2839
8668
2839
9867
7383
9347
6427
5695
8354
3320
2241 + 3378 =T
2565 + 3156 =L
3557 + 3826 =Y
2248 + 4516 =V
4077 + 4591 =N
4821 + 3533 =G
1815 + 1024 =O
3128 + 2567 =D
4374 + 3740 =I
2164 + 3162 =H
4713 + 5154 =M
2115 + 1205 =E
4072 + 5275 =B
2218 + 2521 =S
4006 + 2996 =R
3633 + 2794 =A
0/16 letters found
Clue 2
Rounding
The digital trail monitor only displays rounded distance numbers.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
370
430
20
90
900
2300
2300
2300
50
W
370
50
W
370
50
20
3700
300
230
90
20
300
900
5000
900
500
20
W
370
290
430
2300
20
Round 368 to the nearest tenW
Round 431 to the nearest tenI
Round 291 to the nearest hundredH
Round 486 to the nearest hundredF
Round 50 to the nearest tenA
Round 86 to the nearest tenN
Round 227 to the nearest tenO
Round 5,279 to the nearest thousandL
Round 896 to the nearest hundredE
Round 288 to the nearest tenR
Round 17 to the nearest tenT
Round 2,262 to the nearest hundredS
Round 3,681 to the nearest hundredC
0/13 letters found
Clue 3
Subtraction
The camp inventory showed some missing supplies after the raid.
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
3917
8802
6411
8730
8465
7958
2856
3512
8802
6013
6442
T
3917
8730
6411
6442
8465
7958
6371
2856
3921
4558
6411
8331
4122
6411
2856
T
3917
8802
6411
T
3917
8802
6013
6411
3921
8465
7958
T
3917
3947 - 30 =T
9662 - 3251 =E
12625 - 3895 =L
9258 - 456 =H
6783 - 2225 =R
5831 - 1709 =K
9232 - 901 =A
11842 - 3884 =U
4028 - 1172 =D
4378 - 866 =W
4964 - 1043 =F
9342 - 877 =O
6286 - 273 =I
10409 - 3967 =S
10917 - 4546 =N
0/15 letters found
Clue 4
Multiplication facts (1-12)
The campers arranged their tents in neat equal rows for inspection.
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
3
6
120
60
144
110
120
144
110
144
90
1
60
6
R
3
66
27
6
R
3
6
90
35
36
110
120
144
99
99
32
6
66
30
6
110
6
3 × 1 =R
5 × 7 =O
6 × 6 =U
3 × 9 =W
12 × 12 =A
12 × 10 =D
8 × 4 =H
6 × 1 =E
10 × 11 =N
11 × 9 =T
10 × 9 =F
10 × 3 =C
1 × 1 =I
5 × 12 =B
6 × 11 =S
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
The reward points were split equally among the camper squads.
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
54 ÷ 9 = ?
24 ÷ 6 = ?
22 ÷ 11 = ?
33 ÷ 3 = ?
60 ÷ 6 = ?
27 ÷ 9 = ?
80 ÷ 10 = ?
12 ÷ 1 = ?
49 ÷ 7 = ?
60 ÷ 12 = ?
11 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain used shelter building to block the hallway, then showed off their archery badge.
2.The villain used trail blazing to mark an escape path, then showed off their first aid badge.
3.The villain used trail blazing to mark an escape path, then showed off their archery badge.
4.The villain used map reading to find the shortcut, then showed off their cooking badge.
5.The villain used map reading to find the shortcut, then showed off their canoeing badge.
6.The villain used trail blazing to mark an escape path, then showed off their canoeing badge.
7.The villain used fire making to create a smoke screen, then showed off their first aid badge.
8.The villain used knot tying to tie up the trunk, then showed off their astronomy badge.
9.The villain used trail blazing to mark an escape path, then showed off their cooking badge.
10.The villain used fire making to create a smoke screen, then showed off their canoeing badge.
11.The villain used knot tying to tie up the trunk, then showed off their first aid badge.
12.The villain used fire making to create a smoke screen, then showed off their archery badge.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Camp Trophy Mystery
Culprit: Quinn Hiker (Trail Blazing · Cooking Badge · Left Wrist · Red Bandana · Whistle Sound)
- Clue 1 (Addition): "THE VILLAIN DOES NOT HAVE AN ASTRONOMY BADGE"2241 + 3378 = 5619 (T) · 2565 + 3156 = 5721 (L) · 3557 + 3826 = 7383 (Y) · 2248 + 4516 = 6764 (V) · 4077 + 4591 = 8668 (N) · 4821 + 3533 = 8354 (G) · 1815 + 1024 = 2839 (O) · 3128 + 2567 = 5695 (D) · 4374 + 3740 = 8114 (I) · 2164 + 3162 = 5326 (H) · 4713 + 5154 = 9867 (M) · 2115 + 1205 = 3320 (E) · 4072 + 5275 = 9347 (B) · 2218 + 2521 = 4739 (S) · 4006 + 2996 = 7002 (R) · 3633 + 2794 = 6427 (A)
- Clue 2 (Rounding): "WITNESS SAW A WATCH ON THE LEFT WRIST"Round 368 to the nearest ten = 370 (W) · Round 431 to the nearest ten = 430 (I) · Round 291 to the nearest hundred = 300 (H) · Round 486 to the nearest hundred = 500 (F) · Round 50 to the nearest ten = 50 (A) · Round 86 to the nearest ten = 90 (N) · Round 227 to the nearest ten = 230 (O) · Round 5,279 to the nearest thousand = 5000 (L) · Round 896 to the nearest hundred = 900 (E) · Round 288 to the nearest ten = 290 (R) · Round 17 to the nearest ten = 20 (T) · Round 2,262 to the nearest hundred = 2300 (S) · Round 3,681 to the nearest hundred = 3700 (C)
- Clue 3 (Subtraction): "THE LOUD WHISTLE SOUND FREAKED THE THIEF OUT"3947 - 30 = 3917 (T) · 9662 - 3251 = 6411 (E) · 12625 - 3895 = 8730 (L) · 9258 - 456 = 8802 (H) · 6783 - 2225 = 4558 (R) · 5831 - 1709 = 4122 (K) · 9232 - 901 = 8331 (A) · 11842 - 3884 = 7958 (U) · 4028 - 1172 = 2856 (D) · 4378 - 866 = 3512 (W) · 4964 - 1043 = 3921 (F) · 9342 - 877 = 8465 (O) · 6286 - 273 = 6013 (I) · 10409 - 3967 = 6442 (S) · 10917 - 4546 = 6371 (N)
- Clue 4 (Multiplication facts (1-12)): "RED BANDANA FIBERS WERE FOUND AT THE SCENE"3 × 1 = 3 (R) · 5 × 7 = 35 (O) · 6 × 6 = 36 (U) · 3 × 9 = 27 (W) · 12 × 12 = 144 (A) · 12 × 10 = 120 (D) · 8 × 4 = 32 (H) · 6 × 1 = 6 (E) · 10 × 11 = 110 (N) · 11 × 9 = 99 (T) · 10 × 9 = 90 (F) · 10 × 3 = 30 (C) · 1 × 1 = 1 (I) · 5 × 12 = 60 (B) · 6 × 11 = 66 (S)
- Clue 5 (Division facts (1-12)): surviving statement (box 9) → Quinn Hiker54 ÷ 9 = 6 · 24 ÷ 6 = 4 · 22 ÷ 11 = 2 · 33 ÷ 3 = 11 · 60 ÷ 6 = 10 · 27 ÷ 9 = 3 · 80 ÷ 10 = 8 · 12 ÷ 1 = 12 · 49 ÷ 7 = 7 · 60 ÷ 12 = 5 · 11 ÷ 11 = 1
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Rounding, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Great Camp Trophy Mystery — set in Starling Wood Adventure Camp
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects