Grade 5Reading: grades 3-4AdditionFractions of a numberOrder of operationsMultiplicationDivision
The Case of the Lost Jungle Compass
Someone snatched the ancient golden compass from the camp tent! Figure out who took it before the supply ship leaves.
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 | Main Tool | Side Gear | Watch Wrist | Bandana Color | Jungle Trap |
|---|---|---|---|---|---|
| Guide Leo | Machete | Compass | Left Wrist | Gold Bandana | Net Trap |
| Hiker Hank | Grappling Hook | Flashlight | Right Wrist | Red Bandana | Mud Pit |
| Tracker Tom | Rope Ladder | Binoculars | Left Wrist | Gold Bandana | Mud Pit |
| Ranger Rick | Machete | Canteen | Left Wrist | Gold Bandana | Mud Pit |
| Outdoorsy Ollie | Smoke Bomb | Canteen | Left Wrist | Gold Bandana | Mud Pit |
| Explorer Eva | Signal Mirror | Compass | Right Wrist | Red Bandana | Mud Pit |
| Pathfinder Penny | Smoke Bomb | Map Roll | Left Wrist | Gold Bandana | Mud Pit |
| Tracker Tess | Rope Ladder | Compass | Right Wrist | Red Bandana | Mud Pit |
| Navigator Nora | Rope Ladder | Canteen | Left Wrist | Blue Bandana | Mud Pit |
| Cartographer Chloe | Rope Ladder | Canteen | Left Wrist | Gold Bandana | Mud Pit |
| Surveyor Sue | Signal Mirror | Compass | Right Wrist | Gold Bandana | Mud Pit |
| Rover Ruby | Machete | Map Roll | Left Wrist | Blue Bandana | Snare Trap |
| Scout Ben | Grappling Hook | Canteen | Right Wrist | Gold Bandana | Snare Trap |
| Trekker Tim | Smoke Bomb | Compass | Left Wrist | Gold Bandana | Net Trap |
| Mapper Max | Smoke Bomb | Canteen | Left Wrist | Gold Bandana | Snare Trap |
| Pioneer Pete | Machete | Compass | Left Wrist | Blue Bandana | Net Trap |
| Scout Sam | Signal Mirror | Canteen | Right Wrist | Red Bandana | Mud Pit |
| Guide Gabe | Signal Mirror | Compass | Left Wrist | Blue Bandana | Mud Pit |
| Adventurer Amy | Grappling Hook | Binoculars | Left Wrist | Blue Bandana | Mud Pit |
| Explorer Eli | Machete | Canteen | Right Wrist | Blue Bandana | Mud Pit |
| Ranger Rita | Signal Mirror | Binoculars | Right Wrist | Gold Bandana | Mud Pit |
Clue 1
Addition
To find the first clues, you count up the supplies left behind at camp.
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
8476
4268
9356
T
8476
4268
2183
9356
4895
4020
2908
9356
8233
2335
2908
T
8476
2722
2511
4167
4167
3253
7945
2183
2335
2908
2722
4628
2387
2511
4167
8233
3942 + 4534 =T
935 + 1787 =C
858 + 1325 =I
2292 + 1976 =H
2735 + 1432 =R
1718 + 1535 =Y
3276 + 4669 =B
2653 + 1367 =D
854 + 1481 =N
3027 + 1868 =F
1568 + 1340 =O
4454 + 4902 =E
2606 + 2022 =U
5459 + 2774 =S
1441 + 1070 =A
901 + 1486 =L
0/16 letters found
Clue 2
Fractions of a number
You measure out fraction portions of the trail mix to feed the scout squad.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
10
24
A
10
15
27
30
24
A
10
3
35
22
28
6
6
40
35
17
22
28
14
15
30
40
26
40
17
15
24
22
37
3
15
5/6 of 12 =A
2/4 of 30 =T
2/10 of 200 =E
5/10 of 54 =C
2/6 of 42 =M
1/5 of 85 =F
2/10 of 110 =R
2/8 of 24 =P
5/10 of 70 =D
1/2 of 74 =I
3/6 of 56 =O
4/10 of 65 =L
2/4 of 60 =H
1/2 of 48 =W
2/4 of 6 =S
0/15 letters found
Clue 3
Order of operations
To unlock the jungle gate, you follow the strict step by step code rule.
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
34
24
37
73
67
73
38
37
13
T
34
73
T
34
67
13
17
12
77
44
73
25
12
38
38
37
80
36
6
67
53
38
12
T
34
3 × 12 - 2 =T
12 × 3 - 19 =K
6 + 3 × 2 =I
9 × 10 - 13 =N
52 + 3 × 5 =U
27 + 5 × 2 =E
8 × 4 - 7 =L
6 + 6 × 3 =H
8 + 4 × 7 =Y
8 × 10 - 7 =S
8 + 9 × 4 =A
8 × 3 - 18 =M
25 + 4 × 7 =D
12 × 9 - 28 =R
10 × 5 - 12 =P
5 + 4 × 2 =C
0/16 letters found
Clue 4
Multiplication facts (1-12)
You count the supply crates stacked in equal rows along the river dock.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
40
80
90
144
72
16
A
40
70
72
A
40
70
A
40
120
90
25
70
28
90
25
70
45
25
48
A
40
7
144
45
15
120
16
45
64
88
70
72
8 × 5 =A
8 × 2 =B
8 × 11 =I
7 × 1 =S
10 × 9 =O
10 × 12 =T
8 × 8 =H
5 × 3 =F
7 × 10 =N
5 × 5 =R
9 × 5 =E
8 × 9 =D
12 × 12 =L
8 × 10 =G
4 × 7 =C
4 × 12 =W
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
You split the remaining gear evenly among the search team members.
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
30 ÷ 10 = ?
22 ÷ 11 = ?
40 ÷ 5 = ?
1 ÷ 1 = ?
55 ÷ 11 = ?
60 ÷ 6 = ?
144 ÷ 12 = ?
28 ÷ 4 = ?
30 ÷ 5 = ?
28 ÷ 7 = ?
99 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain cleared vines with a machete, then lost the binoculars.
2.The villain climbed a rope ladder, then spilled the canteen.
3.The villain dropped a smoke bomb, then unrolled the map roll.
4.The villain swung with a grappling hook, then checked the compass.
5.The villain dropped a smoke bomb, then shined the flashlight.
6.The villain swung with a grappling hook, then spilled the canteen.
7.The villain flashed a signal mirror, then unrolled the map roll.
8.The villain cleared vines with a machete, then spilled the canteen.
9.The villain swung with a grappling hook, then unrolled the map roll.
10.The villain cleared vines with a machete, then checked the compass.
11.The villain dropped a smoke bomb, then spilled the canteen.
12.The villain flashed a signal mirror, then checked the compass.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Lost Jungle Compass
Culprit: Outdoorsy Ollie (Smoke Bomb · Canteen · Left Wrist · Gold Bandana · Mud Pit)
- Clue 1 (Addition): "THE THIEF DOES NOT CARRY BINOCULARS"3942 + 4534 = 8476 (T) · 935 + 1787 = 2722 (C) · 858 + 1325 = 2183 (I) · 2292 + 1976 = 4268 (H) · 2735 + 1432 = 4167 (R) · 1718 + 1535 = 3253 (Y) · 3276 + 4669 = 7945 (B) · 2653 + 1367 = 4020 (D) · 854 + 1481 = 2335 (N) · 3027 + 1868 = 4895 (F) · 1568 + 1340 = 2908 (O) · 4454 + 4902 = 9356 (E) · 2606 + 2022 = 4628 (U) · 5459 + 2774 = 8233 (S) · 1441 + 1070 = 2511 (A) · 901 + 1486 = 2387 (L)
- Clue 2 (Fractions of a number): "A WATCH WAS DROPPED FROM THE LEFT WRIST"5/6 of 12 = 10 (A) · 2/4 of 30 = 15 (T) · 2/10 of 200 = 40 (E) · 5/10 of 54 = 27 (C) · 2/6 of 42 = 14 (M) · 1/5 of 85 = 17 (F) · 2/10 of 110 = 22 (R) · 2/8 of 24 = 6 (P) · 5/10 of 70 = 35 (D) · 1/2 of 74 = 37 (I) · 3/6 of 56 = 28 (O) · 4/10 of 65 = 26 (L) · 2/4 of 60 = 30 (H) · 1/2 of 48 = 24 (W) · 2/4 of 6 = 3 (S)
- Clue 3 (Order of operations): "THE SUSPECT STUCK IN A SLIPPERY MUD PIT"3 × 12 - 2 = 34 (T) · 12 × 3 - 19 = 17 (K) · 6 + 3 × 2 = 12 (I) · 9 × 10 - 13 = 77 (N) · 52 + 3 × 5 = 67 (U) · 27 + 5 × 2 = 37 (E) · 8 × 4 - 7 = 25 (L) · 6 + 6 × 3 = 24 (H) · 8 + 4 × 7 = 36 (Y) · 8 × 10 - 7 = 73 (S) · 8 + 9 × 4 = 44 (A) · 8 × 3 - 18 = 6 (M) · 25 + 4 × 7 = 53 (D) · 12 × 9 - 28 = 80 (R) · 10 × 5 - 12 = 38 (P) · 5 + 4 × 2 = 13 (C)
- Clue 4 (Multiplication facts (1-12)): "A GOLD BANDANA TORN CORNER WAS LEFT BEHIND"8 × 5 = 40 (A) · 8 × 2 = 16 (B) · 8 × 11 = 88 (I) · 7 × 1 = 7 (S) · 10 × 9 = 90 (O) · 10 × 12 = 120 (T) · 8 × 8 = 64 (H) · 5 × 3 = 15 (F) · 7 × 10 = 70 (N) · 5 × 5 = 25 (R) · 9 × 5 = 45 (E) · 8 × 9 = 72 (D) · 12 × 12 = 144 (L) · 8 × 10 = 80 (G) · 4 × 7 = 28 (C) · 4 × 12 = 48 (W)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Outdoorsy Ollie30 ÷ 10 = 3 · 22 ÷ 11 = 2 · 40 ÷ 5 = 8 · 1 ÷ 1 = 1 · 55 ÷ 11 = 5 · 60 ÷ 6 = 10 · 144 ÷ 12 = 12 · 28 ÷ 4 = 7 · 30 ÷ 5 = 6 · 28 ÷ 7 = 4 · 99 ÷ 11 = 9
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Addition, Fractions of a number, Order of operations, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Lost Jungle Compass — set in Snake Tooth Island
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects