Grade 3Reading: grades 1-2MultiplicationAdditionRoundingSubtractionDivision
The Missing Compass Mystery
Someone snuck into the jungle camp and took the golden compass! Detective Sam needs your help to crack the codes and find the bandit.
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 | Special Gear | Scout Skill | Watch Hand | Cap Color | Scared Of |
|---|---|---|---|---|---|
| Maya Chen | Map Scroll | Signal Fire | Right Hand Watch | Green Cap | Muddy Frogs |
| Sienna Ray | Binoculars | Path Finding | Left Hand Watch | Blue Cap | Muddy Frogs |
| Harper Hill | Grappling Hook | Path Finding | Right Hand Watch | Blue Cap | Muddy Frogs |
| Owen Black | Binoculars | Knot Tying | Right Hand Watch | Red Cap | Buzzing Bees |
| Liam Knight | Binoculars | Animal Calls | Left Hand Watch | Red Cap | Squeaky Bats |
| Ruby Adams | Rope Ladder | Signal Fire | Right Hand Watch | Red Cap | Buzzing Bees |
| Aria Vance | Flashlight Torch | Tree Climbing | Right Hand Watch | Blue Cap | Squeaky Bats |
| Zoe Miller | Binoculars | Path Finding | Right Hand Watch | Red Cap | Buzzing Bees |
| Nora Patel | Flashlight Torch | Tree Climbing | Left Hand Watch | Red Cap | Buzzing Bees |
| Eli Vance | Rope Ladder | Path Finding | Right Hand Watch | Red Cap | Buzzing Bees |
| Toby Frost | Flashlight Torch | Signal Fire | Left Hand Watch | Red Cap | Buzzing Bees |
| Jax Swift | Binoculars | Animal Calls | Right Hand Watch | Blue Cap | Squeaky Bats |
| Finn Baker | Binoculars | Signal Fire | Right Hand Watch | Green Cap | Buzzing Bees |
| Caleb Ford | Flashlight Torch | Knot Tying | Right Hand Watch | Red Cap | Buzzing Bees |
| Luke Young | Grappling Hook | Tree Climbing | Right Hand Watch | Blue Cap | Buzzing Bees |
| Tara Hayes | Rope Ladder | Animal Calls | Left Hand Watch | Red Cap | Muddy Frogs |
| Mia Chang | Binoculars | Path Finding | Right Hand Watch | Red Cap | Squeaky Bats |
| Ivy Stone | Grappling Hook | Knot Tying | Right Hand Watch | Green Cap | Muddy Frogs |
| Sammy Brooks | Binoculars | Animal Calls | Right Hand Watch | Red Cap | Buzzing Bees |
| Noah Reed | Binoculars | Signal Fire | Left Hand Watch | Blue Cap | Buzzing Bees |
| Mason Cole | Grappling Hook | Signal Fire | Left Hand Watch | Green Cap | Muddy Frogs |
Clue 1
Multiplication facts (1-12)
We found rows of supply boxes in the scout tent. Count the groups 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
4
60
20
7
108
16
3
35
T
4
3
100
20
120
16
100
T
4
99
120
20
70
16
100
T
4
T
4
144
35
16
56
1 × 4 =T
10 × 12 =S
12 × 12 =Y
10 × 2 =E
4 × 4 =N
7 × 5 =I
9 × 11 =U
7 × 1 =B
7 × 10 =K
6 × 10 =H
8 × 7 =G
3 × 1 =D
12 × 9 =A
10 × 10 =O
0/14 letters found
Clue 2
Addition
We gathered all the camp flashlight batteries together. Add them up to get the next 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.
W
890
922
464
866
659
402
402
402
383
W
890
383
W
890
383
464
286
306
597
866
464
306
659
731
922
539
306
464
W
890
731
922
402
464
357 + 533 =W
259 + 472 =R
377 + 162 =G
158 + 148 =H
219 + 183 =S
118 + 168 =C
301 + 163 =T
495 + 371 =N
332 + 327 =E
245 + 138 =A
368 + 229 =O
552 + 370 =I
0/12 letters found
Clue 3
Rounding
The main scout radar panel rounds every distance to the nearest ten. Round the number to read the screen.
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
8000
200
4000
60
9000
40
5000
3000
T
8000
800
9000
40
9000
700
9000
70
50
800
300
30
60
600
500
500
3000
40
6000
60
4000
4000
400
Round 8,185 to the nearest thousandT
Round 197 to the nearest hundredH
Round 67 to the nearest tenY
Round 3,856 to the nearest thousandE
Round 44 to the nearest tenN
Round 4,576 to the nearest thousandD
Round 32 to the nearest tenM
Round 64 to the nearest tenB
Round 8,525 to the nearest thousandA
Round 766 to the nearest hundredR
Round 54 to the nearest tenF
Round 423 to the nearest hundredS
Round 699 to the nearest hundredW
Round 5,876 to the nearest thousandG
Round 585 to the nearest hundredU
Round 294 to the nearest hundredO
Round 451 to the nearest hundredZ
Round 2,626 to the nearest thousandI
0/18 letters found
Clue 4
Subtraction
Some trail markers were taken from the pack. Subtract to see how many remain.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
F
752
636
622
854
532
716
685
857
532
327
716
246
716
445
445
618
857
445
685
857
857
618
636
622
127
857
1084 - 332 =F
991 - 306 =R
901 - 44 =E
873 - 255 =H
950 - 328 =U
1246 - 392 =N
310 - 183 =S
533 - 88 =T
588 - 261 =C
722 - 86 =O
1004 - 288 =A
353 - 107 =P
861 - 329 =D
0/13 letters found
Clue 5
Division facts (1-12) — the last clue
We shared the snack bars equally among the scout patrols. Divide them to find the last clue!
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
56 ÷ 7 = ?
11 ÷ 1 = ?
2 ÷ 2 = ?
30 ÷ 10 = ?
12 ÷ 1 = ?
4 ÷ 1 = ?
40 ÷ 8 = ?
9 ÷ 1 = ?
30 ÷ 5 = ?
120 ÷ 12 = ?
12 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain spied with binoculars, then found a hidden path.
2.The villain shined a flashlight torch, then tied a sturdy knot.
3.The villain spied with binoculars, then lit a signal fire.
4.The villain checked a map scroll, then found a hidden path.
5.The villain checked a map scroll, then tied a sturdy knot.
6.The villain shined a flashlight torch, then climbed a high tree.
7.The villain climbed a rope ladder, then lit a signal fire.
8.The villain spied with binoculars, then made wild animal calls.
9.The villain swung in with a grappling hook, then made wild animal calls.
10.The villain climbed a rope ladder, then climbed a high tree.
11.The villain climbed a rope ladder, then found a hidden path.
12.The villain swung in with a grappling hook, then climbed a high tree.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Missing Compass Mystery
Culprit: Ruby Adams (Rope Ladder · Signal Fire · Right Hand Watch · Red Cap · Buzzing Bees)
- Clue 1 (Multiplication facts (1-12)): "THE BANDIT DOES NOT USE KNOT TYING"1 × 4 = 4 (T) · 10 × 12 = 120 (S) · 12 × 12 = 144 (Y) · 10 × 2 = 20 (E) · 4 × 4 = 16 (N) · 7 × 5 = 35 (I) · 9 × 11 = 99 (U) · 7 × 1 = 7 (B) · 7 × 10 = 70 (K) · 6 × 10 = 60 (H) · 8 × 7 = 56 (G) · 3 × 1 = 3 (D) · 12 × 9 = 108 (A) · 10 × 10 = 100 (O)
- Clue 2 (Addition): "WITNESS SAW A WATCH ON THE RIGHT WRIST"357 + 533 = 890 (W) · 259 + 472 = 731 (R) · 377 + 162 = 539 (G) · 158 + 148 = 306 (H) · 219 + 183 = 402 (S) · 118 + 168 = 286 (C) · 301 + 163 = 464 (T) · 495 + 371 = 866 (N) · 332 + 327 = 659 (E) · 245 + 138 = 383 (A) · 368 + 229 = 597 (O) · 552 + 370 = 922 (I)
- Clue 3 (Rounding): "THE BANDIT RAN AWAY FROM BUZZING BEES"Round 8,185 to the nearest thousand = 8000 (T) · Round 197 to the nearest hundred = 200 (H) · Round 67 to the nearest ten = 70 (Y) · Round 3,856 to the nearest thousand = 4000 (E) · Round 44 to the nearest ten = 40 (N) · Round 4,576 to the nearest thousand = 5000 (D) · Round 32 to the nearest ten = 30 (M) · Round 64 to the nearest ten = 60 (B) · Round 8,525 to the nearest thousand = 9000 (A) · Round 766 to the nearest hundred = 800 (R) · Round 54 to the nearest ten = 50 (F) · Round 423 to the nearest hundred = 400 (S) · Round 699 to the nearest hundred = 700 (W) · Round 5,876 to the nearest thousand = 6000 (G) · Round 585 to the nearest hundred = 600 (U) · Round 294 to the nearest hundred = 300 (O) · Round 451 to the nearest hundred = 500 (Z) · Round 2,626 to the nearest thousand = 3000 (I)
- Clue 4 (Subtraction): "FOUND A RED CAP AT THE TREE HOUSE"1084 - 332 = 752 (F) · 991 - 306 = 685 (R) · 901 - 44 = 857 (E) · 873 - 255 = 618 (H) · 950 - 328 = 622 (U) · 1246 - 392 = 854 (N) · 310 - 183 = 127 (S) · 533 - 88 = 445 (T) · 588 - 261 = 327 (C) · 722 - 86 = 636 (O) · 1004 - 288 = 716 (A) · 353 - 107 = 246 (P) · 861 - 329 = 532 (D)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Ruby Adams56 ÷ 7 = 8 · 11 ÷ 1 = 11 · 2 ÷ 2 = 1 · 30 ÷ 10 = 3 · 12 ÷ 1 = 12 · 4 ÷ 1 = 4 · 40 ÷ 8 = 5 · 9 ÷ 1 = 9 · 30 ÷ 5 = 6 · 120 ÷ 12 = 10 · 12 ÷ 6 = 2
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Multiplication, Addition, Rounding, Subtraction, Division
- Reading level
- grades 1-2
- Theme
- The Missing Compass Mystery — set in Jungle Scout Camp
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects