Grade 4Reading: grades 3-4AdditionRoundingSubtractionMultiplicationDivision
The Stolen Compass of Sunken Creek
Someone snuck into the camp lodge and took the Golden Compass! Help Counselor Sam follow the clues and catch the mystery bandit before sunset.
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 | Gear Tool | Pocket Item | Dominant Hand | Hair Style | Secret Flaw |
|---|---|---|---|---|---|
| Toby Trail | Flashlight Glove | Tracking Map | Right Handed | Curly Blonde Hair | Squeaky Shoes |
| Jack Summit | Flashlight Glove | Lasso Rope | Left Handed | Curly Blonde Hair | Loud Sniffling |
| Zoe Rover | Compass Ring | Binoculars | Left Handed | Curly Blonde Hair | Squeaky Shoes |
| Kai River | Glider Wings | Lasso Rope | Left Handed | Curly Blonde Hair | Squeaky Shoes |
| Sammy Woods | Compass Ring | Whistle Alarm | Right Handed | Curly Blonde Hair | Squeaky Shoes |
| Luke Marsh | Flashlight Glove | Smoke Bomb | Left Handed | Spiky Red Hair | Fear of Frogs |
| Chloe Coast | Climbing Claws | Tracking Map | Left Handed | Curly Blonde Hair | Loud Sniffling |
| Tara Birch | Climbing Claws | Tracking Map | Left Handed | Spiky Red Hair | Fear of Frogs |
| Maya Hiker | Flashlight Glove | Tracking Map | Left Handed | Curly Blonde Hair | Squeaky Shoes |
| Rory Ranger | Compass Ring | Lasso Rope | Left Handed | Curly Blonde Hair | Squeaky Shoes |
| Pia Peak | Flashlight Glove | Binoculars | Left Handed | Braided Black Hair | Squeaky Shoes |
| Mason Meadow | Flashlight Glove | Lasso Rope | Left Handed | Spiky Red Hair | Squeaky Shoes |
| Owen Stream | Climbing Claws | Binoculars | Left Handed | Curly Blonde Hair | Fear of Frogs |
| Leo Scout | Flashlight Glove | Binoculars | Right Handed | Spiky Red Hair | Loud Sniffling |
| Ivy Forest | Flashlight Glove | Smoke Bomb | Left Handed | Braided Black Hair | Loud Sniffling |
| Ben Tracker | Flashlight Glove | Tracking Map | Left Handed | Spiky Red Hair | Fear of Frogs |
| Sora Swift | Flashlight Glove | Binoculars | Left Handed | Curly Blonde Hair | Loud Sniffling |
| Nia Pine | Grappling Hook | Whistle Alarm | Right Handed | Spiky Red Hair | Loud Sniffling |
| Ruby Valley | Climbing Claws | Whistle Alarm | Left Handed | Curly Blonde Hair | Squeaky Shoes |
| Ella Canyon | Glider Wings | Lasso Rope | Right Handed | Curly Blonde Hair | Squeaky Shoes |
| Finn Ridge | Climbing Claws | Tracking Map | Left Handed | Braided Black Hair | Loud Sniffling |
Clue 1
Addition
Counselor Sam added up all the lost supply crates found on the trail to unlock the first clue.
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
4073
2586
4858
9644
9526
5254
9170
5300
T
4073
9170
5300
9170
5254
3480
T
4073
9424
2568
4858
9526
3169
2586
5300
2568
T
4073
6911
4858
9526
6911
9526
6274
9654
1808 + 2265 =T
3063 + 3848 =L
6300 + 3344 =B
6212 + 3442 =M
1937 + 3363 =I
3629 + 1625 =N
2033 + 1136 =W
4386 + 5140 =A
3295 + 1563 =E
1237 + 1331 =S
1041 + 1545 =H
5570 + 3854 =U
2196 + 4078 =R
1197 + 2283 =O
3518 + 5652 =D
0/15 letters found
Clue 2
Rounding
The trail scanner radar only showed rounded distance numbers when tracking the intruder.
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
130
170
110
3700
70
T
130
2300
110
7000
7000
7000
1300
3700
1300
5000
110
50
T
130
170
1300
2300
9000
110
9000
50
3000
3000
T
130
290
4300
70
2300
T
130
Round 133 to the nearest tenT
Round 3,734 to the nearest hundredW
Round 169 to the nearest tenH
Round 110 to the nearest tenE
Round 7,459 to the nearest thousandS
Round 4,304 to the nearest hundredR
Round 67 to the nearest tenI
Round 2,337 to the nearest hundredN
Round 9,282 to the nearest thousandD
Round 5,212 to the nearest thousandL
Round 1,278 to the nearest hundredA
Round 46 to the nearest tenF
Round 3,204 to the nearest thousandO
Round 286 to the nearest tenP
0/14 letters found
Clue 3
Subtraction
Sam subtracted the missing trail markers from the total count to reveal the next note.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
1723
8030
8018
8161
8556
8945
1648
S
1723
5030
3360
8161
S
1723
1793
8161
1843
8161
5030
8161
8556
1843
2092
8556
5603
5603
5030
8161
1228
3360
2092
8122
8161
3617 - 1894 =S
10739 - 2617 =G
12069 - 3908 =E
9617 - 4014 =T
3781 - 1938 =R
11426 - 3408 =U
10416 - 1860 =A
2344 - 252 =D
4306 - 2658 =Y
12258 - 4228 =Q
8873 - 3843 =H
7917 - 4557 =O
10487 - 1542 =K
2174 - 946 =L
5502 - 3709 =W
0/15 letters found
Clue 4
Multiplication facts (1-12)
The scouts organized rows of camp tents to calculate the code on the cabin lock.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
C
70
21
63
33
25
132
33
121
96
6
99
1
42
81
63
9
42
30
3
121
21
96
6
96
99
42
63
88
1
99
88
99
96
88
10 × 7 =C
9 × 9 =I
5 × 6 =S
1 × 1 =H
3 × 11 =L
6 × 7 =A
12 × 11 =B
8 × 11 =T
12 × 8 =N
6 × 1 =D
3 × 7 =U
9 × 11 =E
1 × 3 =F
5 × 5 =Y
1 × 9 =W
9 × 7 =R
11 × 11 =O
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
Sam split the leftover snack packs equally among the hiking groups to get the final hint.
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
144 ÷ 12 = ?
56 ÷ 8 = ?
60 ÷ 10 = ?
54 ÷ 6 = ?
32 ÷ 4 = ?
14 ÷ 7 = ?
6 ÷ 2 = ?
40 ÷ 10 = ?
15 ÷ 3 = ?
40 ÷ 4 = ?
77 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain glided down from the watchtower, then tied up the latch with a lasso rope.
2.The villain swung across the stream with a hook, then tied up the latch with a lasso rope.
3.The villain scaled the steep rock wall with claws, then dropped a smoke bomb in the bushes.
4.The villain glided down from the watchtower, then dropped a smoke bomb in the bushes.
5.The villain lit up the old cabin with a glove, then spotted the patrol with binoculars.
6.The villain lit up the old cabin with a glove, then consulted a tracking map under a tree.
7.The villain navigated the dark path with a ring, then spotted the patrol with binoculars.
8.The villain swung across the stream with a hook, then consulted a tracking map under a tree.
9.The villain swung across the stream with a hook, then blew a loud whistle alarm by accident.
10.The villain glided down from the watchtower, then spotted the patrol with binoculars.
11.The villain lit up the old cabin with a glove, then dropped a smoke bomb in the bushes.
12.The villain navigated the dark path with a ring, then tied up the latch with a lasso rope.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Stolen Compass of Sunken Creek
Culprit: Kai River (Glider Wings · Lasso Rope · Left Handed · Curly Blonde Hair · Squeaky Shoes)
- Clue 1 (Addition): "THE BANDIT DID NOT USE A WHISTLE ALARM"1808 + 2265 = 4073 (T) · 3063 + 3848 = 6911 (L) · 6300 + 3344 = 9644 (B) · 6212 + 3442 = 9654 (M) · 1937 + 3363 = 5300 (I) · 3629 + 1625 = 5254 (N) · 2033 + 1136 = 3169 (W) · 4386 + 5140 = 9526 (A) · 3295 + 1563 = 4858 (E) · 1237 + 1331 = 2568 (S) · 1041 + 1545 = 2586 (H) · 5570 + 3854 = 9424 (U) · 2196 + 4078 = 6274 (R) · 1197 + 2283 = 3480 (O) · 3518 + 5652 = 9170 (D)
- Clue 2 (Rounding): "THE WITNESS SAW A LEFT HANDED FOOTPRINT"Round 133 to the nearest ten = 130 (T) · Round 3,734 to the nearest hundred = 3700 (W) · Round 169 to the nearest ten = 170 (H) · Round 110 to the nearest ten = 110 (E) · Round 7,459 to the nearest thousand = 7000 (S) · Round 4,304 to the nearest hundred = 4300 (R) · Round 67 to the nearest ten = 70 (I) · Round 2,337 to the nearest hundred = 2300 (N) · Round 9,282 to the nearest thousand = 9000 (D) · Round 5,212 to the nearest thousand = 5000 (L) · Round 1,278 to the nearest hundred = 1300 (A) · Round 46 to the nearest ten = 50 (F) · Round 3,204 to the nearest thousand = 3000 (O) · Round 286 to the nearest ten = 290 (P)
- Clue 3 (Subtraction): "SQUEAKY SHOES WERE HEARD AT THE LODGE"3617 - 1894 = 1723 (S) · 10739 - 2617 = 8122 (G) · 12069 - 3908 = 8161 (E) · 9617 - 4014 = 5603 (T) · 3781 - 1938 = 1843 (R) · 11426 - 3408 = 8018 (U) · 10416 - 1860 = 8556 (A) · 2344 - 252 = 2092 (D) · 4306 - 2658 = 1648 (Y) · 12258 - 4228 = 8030 (Q) · 8873 - 3843 = 5030 (H) · 7917 - 4557 = 3360 (O) · 10487 - 1542 = 8945 (K) · 2174 - 946 = 1228 (L) · 5502 - 3709 = 1793 (W)
- Clue 4 (Multiplication facts (1-12)): "CURLY BLONDE HAIR WAS FOUND NEAR THE TENT"10 × 7 = 70 (C) · 9 × 9 = 81 (I) · 5 × 6 = 30 (S) · 1 × 1 = 1 (H) · 3 × 11 = 33 (L) · 6 × 7 = 42 (A) · 12 × 11 = 132 (B) · 8 × 11 = 88 (T) · 12 × 8 = 96 (N) · 6 × 1 = 6 (D) · 3 × 7 = 21 (U) · 9 × 11 = 99 (E) · 1 × 3 = 3 (F) · 5 × 5 = 25 (Y) · 1 × 9 = 9 (W) · 9 × 7 = 63 (R) · 11 × 11 = 121 (O)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Kai River144 ÷ 12 = 12 · 56 ÷ 8 = 7 · 60 ÷ 10 = 6 · 54 ÷ 6 = 9 · 32 ÷ 4 = 8 · 14 ÷ 7 = 2 · 6 ÷ 2 = 3 · 40 ÷ 10 = 4 · 15 ÷ 3 = 5 · 40 ÷ 4 = 10 · 77 ÷ 7 = 11
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Rounding, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Stolen Compass of Sunken Creek — set in Sunken Creek Wilderness Camp
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects