Grade 4Reading: grades 3-4MultiplicationRoundingAdditionSubtractionDivision

The Lost Idol Mystery

Someone snuck into the camp tent and took the golden idol! Solve the math clues to identify the sneaky Shadow Scout before they escape the jungle.

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	Extra Gear	Handedness	Hairstyle	Weakness
Max Venture	Torch Beam	Flash Beacon	Right Handed	Spiky Crown	Bright Light
Ella Pioneer	Smoke Pellets	Flash Beacon	Right Handed	Long Braids	Wet Mud
Mia Valley	Compass Lock	Signal Whistle	Left Handed	Shaved Sides	Wet Mud
Owen Scout	Compass Lock	Sonic Horn	Right Handed	Long Braids	Wet Mud
Zoe Pathfinder	Grappling Hook	Rope Dart	Right Handed	Spiky Crown	Bright Light
Jack Ranger	Grappling Hook	Signal Whistle	Right Handed	Shaved Sides	Loud Whistles
Chloe Canyon	Grappling Hook	Signal Whistle	Right Handed	Spiky Crown	Wet Mud
Indiana Drake	Grappling Hook	Flash Beacon	Right Handed	Spiky Crown	Bright Light
Kai Explorer	Smoke Pellets	Signal Whistle	Left Handed	Long Braids	Wet Mud
Diego Dash	Smoke Pellets	Signal Whistle	Right Handed	Long Braids	Loud Whistles
Noah Cliff	Glider Wings	Rope Dart	Left Handed	Shaved Sides	Wet Mud
Ethan River	Glider Wings	Flash Beacon	Left Handed	Shaved Sides	Bright Light
Alex River	Grappling Hook	Signal Whistle	Right Handed	Long Braids	Wet Mud
Ruby Compass	Grappling Hook	Sonic Horn	Left Handed	Long Braids	Bright Light
Ava Summit	Smoke Pellets	Sonic Horn	Right Handed	Shaved Sides	Loud Whistles
Nina Ridge	Compass Lock	Sonic Horn	Right Handed	Long Braids	Bright Light
Maya Trail	Compass Lock	Signal Whistle	Right Handed	Long Braids	Wet Mud
Harper Woods	Grappling Hook	Rope Dart	Right Handed	Long Braids	Wet Mud
Lily Jungle	Smoke Pellets	Rope Dart	Right Handed	Spiky Crown	Loud Whistles
Sam Tracker	Compass Lock	Map Scanner	Left Handed	Spiky Crown	Wet Mud
Lucas Boulder	Smoke Pellets	Flash Beacon	Right Handed	Shaved Sides	Wet Mud

Clue 1

Multiplication facts (1-12)

We found crate stacks near the temple gate. Each row holds the same number of supplies.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

7 × 7 =T

8 × 1 =A

9 × 9 =N

9 × 7 =I

1 × 3 =R

9 × 3 =O

2 × 7 =H

2 × 6 =S

4 × 10 =L

7 × 10 =U

7 × 12 =E

7 × 6 =P

4 × 8 =V

9 × 2 =D

0/14 letters found

Clue 2

Rounding

The camp sensor display shows a rounded estimate of the runner's distance.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

300

110

900

3700

5000

200

300

4300

110

900

1100

1300

3700

900

300

110

900

130

1100

130

2300

110

300

110

200

5000

170

5000

430

2000

Round 323 to the nearest hundredT

Round 4,280 to the nearest hundredC

Round 874 to the nearest hundredE

Round 170 to the nearest tenO

Round 432 to the nearest tenL

Round 2,251 to the nearest hundredG

Round 209 to the nearest hundredA

Round 47 to the nearest tenD

Round 106 to the nearest tenH

Round 4,782 to the nearest thousandN

Round 1,698 to the nearest thousandY

Round 132 to the nearest tenI

Round 1,142 to the nearest hundredR

Round 3,702 to the nearest hundredS

Round 1,274 to the nearest hundredU

0/15 letters found

Clue 3

Addition

We tallied up all the trail markers found along both river banks.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

7398

7732

2133

3894

9166

2133

8327

4047

3894

8282

6558

8123

2133

3371

2955

9166

5284

2133

7398

5907

8275

3371

2698 + 4700 =T

3102 + 4630 =H

1289 + 2082 =D

4605 + 3722 =A

2595 + 3312 =M

1951 + 1004 =O

2305 + 4253 =I

5824 + 3342 =N

3422 + 4853 =U

938 + 1195 =E

5714 + 2568 =L

2454 + 5669 =P

1659 + 3625 =W

2624 + 1423 =K

2667 + 1227 =S

0/15 letters found

Clue 4

Subtraction

We compared our starting gear count with what remains in the storage chest.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

5796

2139

3738

1558

6241

4331

2248

4334

8854

6665

5796

3510

1090

5122

4331

2248

3359

3510

6665

2248

5122

6928

3510

1558

2248

5122

3510

10786 - 4990 =L

7682 - 4323 =C

5256 - 134 =T

2848 - 1758 =F

5212 - 1702 =E

7995 - 3664 =R

6608 - 4469 =O

10921 - 3993 =H

7318 - 1077 =B

5454 - 1716 =N

7647 - 3313 =I

2790 - 542 =A

8324 - 1659 =S

2847 - 1289 =G

12759 - 3905 =D

0/15 letters found

Clue 5

Division facts (1-12) — the last clue

We split the recovered map pieces evenly among our four search teams.

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

10 ÷ 2 = ?

110 ÷ 10 = ?

108 ÷ 9 = ?

8 ÷ 4 = ?

99 ÷ 11 = ?

56 ÷ 8 = ?

10 ÷ 10 = ?

40 ÷ 4 = ?

8 ÷ 2 = ?

54 ÷ 9 = ?

40 ÷ 5 = ?

Step 2 — cross out the sentence with each answer

1.The villain locked the compass, then lit a flash beacon.

2.The villain locked the compass, then scanned the old map.

3.The villain locked the compass, then blew a sonic horn.

4.The villain threw a smoke pellet, then blew a sonic horn.

5.The villain threw a smoke pellet, then lit a flash beacon.

6.The villain locked the compass, then threw a rope dart.

7.The villain threw a smoke pellet, then threw a rope dart.

8.The villain slung the grappling hook, then blew a sonic horn.

9.The villain soared on glider wings, then lit a flash beacon.

10.The villain shined a torch beam, then threw a rope dart.

11.The villain locked the compass, then blew a signal whistle.

12.The villain slung the grappling hook, then blew a signal whistle.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Lost Idol Mystery

Culprit: Owen Scout (Compass Lock · Sonic Horn · Right Handed · Long Braids · Wet Mud)

Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT USE A ROPE DART"
7 × 7 = 49 (T) · 8 × 1 = 8 (A) · 9 × 9 = 81 (N) · 9 × 7 = 63 (I) · 1 × 3 = 3 (R) · 9 × 3 = 27 (O) · 2 × 7 = 14 (H) · 2 × 6 = 12 (S) · 4 × 10 = 40 (L) · 7 × 10 = 70 (U) · 7 × 12 = 84 (E) · 7 × 6 = 42 (P) · 4 × 8 = 32 (V) · 9 × 2 = 18 (D)
Clue 2 (Rounding): "THE SNATCHER USED THEIR RIGHT HAND ONLY"
Round 323 to the nearest hundred = 300 (T) · Round 4,280 to the nearest hundred = 4300 (C) · Round 874 to the nearest hundred = 900 (E) · Round 170 to the nearest ten = 170 (O) · Round 432 to the nearest ten = 430 (L) · Round 2,251 to the nearest hundred = 2300 (G) · Round 209 to the nearest hundred = 200 (A) · Round 47 to the nearest ten = 50 (D) · Round 106 to the nearest ten = 110 (H) · Round 4,782 to the nearest thousand = 5000 (N) · Round 1,698 to the nearest thousand = 2000 (Y) · Round 132 to the nearest ten = 130 (I) · Round 1,142 to the nearest hundred = 1100 (R) · Round 3,702 to the nearest hundred = 3700 (S) · Round 1,274 to the nearest hundred = 1300 (U)
Clue 3 (Addition): "THE SNEAK SLIPPED ON WET MUD"
2698 + 4700 = 7398 (T) · 3102 + 4630 = 7732 (H) · 1289 + 2082 = 3371 (D) · 4605 + 3722 = 8327 (A) · 2595 + 3312 = 5907 (M) · 1951 + 1004 = 2955 (O) · 2305 + 4253 = 6558 (I) · 5824 + 3342 = 9166 (N) · 3422 + 4853 = 8275 (U) · 938 + 1195 = 2133 (E) · 5714 + 2568 = 8282 (L) · 2454 + 5669 = 8123 (P) · 1659 + 3625 = 5284 (W) · 2624 + 1423 = 4047 (K) · 2667 + 1227 = 3894 (S)
Clue 4 (Subtraction): "LONG BRAIDS LEFT TRACES AT THE GATE"
10786 - 4990 = 5796 (L) · 7682 - 4323 = 3359 (C) · 5256 - 134 = 5122 (T) · 2848 - 1758 = 1090 (F) · 5212 - 1702 = 3510 (E) · 7995 - 3664 = 4331 (R) · 6608 - 4469 = 2139 (O) · 10921 - 3993 = 6928 (H) · 7318 - 1077 = 6241 (B) · 5454 - 1716 = 3738 (N) · 7647 - 3313 = 4334 (I) · 2790 - 542 = 2248 (A) · 8324 - 1659 = 6665 (S) · 2847 - 1289 = 1558 (G) · 12759 - 3905 = 8854 (D)
Clue 5 (Division facts (1-12)): surviving statement (box 3) → Owen Scout
10 ÷ 2 = 5 · 110 ÷ 10 = 11 · 108 ÷ 9 = 12 · 8 ÷ 4 = 2 · 99 ÷ 11 = 9 · 56 ÷ 8 = 7 · 10 ÷ 10 = 1 · 40 ÷ 4 = 10 · 8 ÷ 2 = 4 · 54 ÷ 9 = 6 · 40 ÷ 5 = 8

About this mystery

Grade level: Grade 4 math
Math topics: Multiplication, Rounding, Addition, Subtraction, Division
Reading level: grades 3-4
Theme: The Lost Idol Mystery — set in Mist Valley Temple
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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