Grade 4Reading: grades 3-4AdditionRoundingSubtractionMultiplicationDivision

The Mystery of the Whispering Jungle Map

Someone snuck into base camp and stole the ancient jungle map! Solve the math clues to figure out who took it and recover the secret path.

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	Primary Tool	Secret Gear	Dominant Hand	Headwear	Main Weakness
Jack Horizon	Compass Whistle	Smoke Pellets	Left Handed	Red Bandana	Loud Whistles
Hannah Valley	Torch Flashlight	Camouflage Net	Right Handed	Pith Helmet	Loud Whistles
Sam Riverwood	Glider Wings	Signal Flares	Left Handed	Black Cap	Bright Lights
Leo Pathfinder	Scout Binoculars	Signal Flares	Right Handed	Red Bandana	Bright Lights
Lily Vine	Compass Whistle	Signal Flares	Right Handed	Red Bandana	Sticky Mud
Cole Summit	Torch Flashlight	Camouflage Net	Left Handed	Red Bandana	Bright Lights
Dylan Flint	Rope Launcher	Smoke Pellets	Right Handed	Black Cap	Bright Lights
Ruby Timber	Rope Launcher	Grappling Hook	Left Handed	Red Bandana	Bright Lights
Noah Creek	Glider Wings	Camouflage Net	Right Handed	Black Cap	Loud Whistles
Maya Canopy	Rope Launcher	Smoke Pellets	Right Handed	Black Cap	Sticky Mud
Finn Ridge	Compass Whistle	Smoke Pellets	Left Handed	Red Bandana	Bright Lights
Ella Bramble	Glider Wings	Sound Snare	Left Handed	Red Bandana	Sticky Mud
Ivy Fern	Compass Whistle	Grappling Hook	Right Handed	Pith Helmet	Loud Whistles
Luke Pioneer	Scout Binoculars	Grappling Hook	Right Handed	Black Cap	Bright Lights
Mia Moss	Glider Wings	Grappling Hook	Left Handed	Red Bandana	Bright Lights
Max Sterling	Rope Launcher	Smoke Pellets	Right Handed	Red Bandana	Sticky Mud
Eli Scout	Glider Wings	Sound Snare	Right Handed	Black Cap	Bright Lights
Ava Redwood	Compass Whistle	Camouflage Net	Left Handed	Red Bandana	Loud Whistles
Zoe Trailblazer	Torch Flashlight	Camouflage Net	Left Handed	Pith Helmet	Bright Lights
Toby Canyon	Rope Launcher	Sound Snare	Left Handed	Red Bandana	Sticky Mud
Chloe Cedar	Compass Whistle	Sound Snare	Left Handed	Red Bandana	Bright Lights

Clue 1

Addition

Scout Sam adds up all the footprints found along the muddy riverbank.

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

3964

5205

3589

3964

5205

7085

3589

9823

8039

8351

3589

2943

2929

8351

3964

8813

2943

3589

8792

9081

8792

3237

8351

8813

9823

4649

8792

9249

3589

2929

3589

3964

1364 + 2600 =T

1303 + 2286 =E

4572 + 4241 =U

2666 + 1983 =L

1946 + 983 =N

3243 + 5108 =O

2003 + 1234 =M

5541 + 3708 =G

6009 + 3814 =F

3229 + 4810 =D

3226 + 1979 =H

4700 + 2385 =I

1914 + 1029 =S

2756 + 6036 =A

5383 + 3698 =C

0/15 letters found

Clue 2

Rounding

The radio tower scanner only shows approximate distance numbers rounded to the nearest ten.

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

2300

9000

2300

430

9000

290

300

130

170

2900

9000

300

370

1300

2900

3000

500

430

2300

9000

430

130

9000

290

2300

1300

5000

300

Round 17 to the nearest tenT

Round 292 to the nearest tenF

Round 2,287 to the nearest hundredH

Round 29 to the nearest tenL

Round 367 to the nearest tenM

Round 169 to the nearest tenO

Round 348 to the nearest hundredD

Round 473 to the nearest hundredW

Round 3,467 to the nearest thousandS

Round 429 to the nearest tenI

Round 4,982 to the nearest thousandN

Round 8,837 to the nearest thousandE

Round 1,329 to the nearest hundredA

Round 134 to the nearest tenR

Round 2,864 to the nearest hundredP

0/15 letters found

Clue 3

Subtraction

Detective Maya calculates how many coconut canteens are missing from the supply crate.

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

2024

8405

1550

2515

2827

2773

7099

1550

2515

2827

2773

1694

4650

8023

3992

1694

3797

3589

2773

2827

3797

2773

2827

1550

3797

8145

2773

2175

8405

3797

2773

8405

3797

8023

2773

4216 - 2192 =B

3658 - 1483 =O

8554 - 1455 =L

6171 - 4477 =S

7541 - 3549 =U

12731 - 4708 =A

10938 - 2793 =F

6432 - 2843 =D

4147 - 1320 =H

10805 - 2400 =R

4332 - 2782 =I

3344 - 571 =T

7844 - 3194 =C

8032 - 4235 =E

3907 - 1392 =G

0/15 letters found

Clue 4

Multiplication facts (1-12)

Scout Finn checks equal rows of supply boxes stacked inside the base camp tent.

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

120

5 × 2 =A

8 × 12 =N

11 × 6 =B

9 × 5 =D

4 × 4 =L

8 × 10 =R

12 × 10 =S

7 × 9 =H

2 × 12 =T

6 × 9 =F

10 × 7 =O

7 × 7 =I

11 × 3 =U

11 × 7 =E

0/14 letters found

Clue 5

Division facts (1-12) — the last clue

Chief Explorer Ava divides the remaining trail snacks equally among the rescue 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

35 ÷ 7 = ?

56 ÷ 7 = ?

12 ÷ 12 = ?

108 ÷ 12 = ?

110 ÷ 11 = ?

132 ÷ 11 = ?

36 ÷ 12 = ?

72 ÷ 12 = ?

12 ÷ 6 = ?

44 ÷ 11 = ?

84 ÷ 12 = ?

Step 2 — cross out the sentence with each answer

1.The villain blew a loud compass whistle, then threw down dense smoke pellets.

2.The villain fired a swift rope launcher, then launched bright signal flares.

3.The villain flashed a bright torch flashlight, then launched bright signal flares.

4.The villain soared past on glider wings, then hid underneath a camouflage net.

5.The villain blew a loud compass whistle, then set up a noisy sound snare.

6.The villain flashed a bright torch flashlight, then threw down dense smoke pellets.

7.The villain soared past on glider wings, then launched bright signal flares.

8.The villain fired a swift rope launcher, then swung away with a grappling hook.

9.The villain flashed a bright torch flashlight, then swung away with a grappling hook.

10.The villain spotted the target with scout binoculars, then threw down dense smoke pellets.

11.The villain soared past on glider wings, then swung away with a grappling hook.

12.The villain flashed a bright torch flashlight, then set up a noisy sound snare.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Mystery of the Whispering Jungle Map

Culprit: Mia Moss (Glider Wings · Grappling Hook · Left Handed · Red Bandana · Bright Lights)

Clue 1 (Addition): "THE THIEF DOES NOT USE A CAMOUFLAGE NET"
1364 + 2600 = 3964 (T) · 1303 + 2286 = 3589 (E) · 4572 + 4241 = 8813 (U) · 2666 + 1983 = 4649 (L) · 1946 + 983 = 2929 (N) · 3243 + 5108 = 8351 (O) · 2003 + 1234 = 3237 (M) · 5541 + 3708 = 9249 (G) · 6009 + 3814 = 9823 (F) · 3229 + 4810 = 8039 (D) · 3226 + 1979 = 5205 (H) · 4700 + 2385 = 7085 (I) · 1914 + 1029 = 2943 (S) · 2756 + 6036 = 8792 (A) · 5383 + 3698 = 9081 (C)
Clue 2 (Rounding): "THE THIEF DROPPED MAPS WITH THEIR LEFT HAND"
Round 17 to the nearest ten = 20 (T) · Round 292 to the nearest ten = 290 (F) · Round 2,287 to the nearest hundred = 2300 (H) · Round 29 to the nearest ten = 30 (L) · Round 367 to the nearest ten = 370 (M) · Round 169 to the nearest ten = 170 (O) · Round 348 to the nearest hundred = 300 (D) · Round 473 to the nearest hundred = 500 (W) · Round 3,467 to the nearest thousand = 3000 (S) · Round 429 to the nearest ten = 430 (I) · Round 4,982 to the nearest thousand = 5000 (N) · Round 8,837 to the nearest thousand = 9000 (E) · Round 1,329 to the nearest hundred = 1300 (A) · Round 134 to the nearest ten = 130 (R) · Round 2,864 to the nearest hundred = 2900 (P)
Clue 3 (Subtraction): "BRIGHT LIGHTS CAUSED THE THIEF TO RETREAT"
4216 - 2192 = 2024 (B) · 3658 - 1483 = 2175 (O) · 8554 - 1455 = 7099 (L) · 6171 - 4477 = 1694 (S) · 7541 - 3549 = 3992 (U) · 12731 - 4708 = 8023 (A) · 10938 - 2793 = 8145 (F) · 6432 - 2843 = 3589 (D) · 4147 - 1320 = 2827 (H) · 10805 - 2400 = 8405 (R) · 4332 - 2782 = 1550 (I) · 3344 - 571 = 2773 (T) · 7844 - 3194 = 4650 (C) · 8032 - 4235 = 3797 (E) · 3907 - 1392 = 2515 (G)
Clue 4 (Multiplication facts (1-12)): "A RED BANDANA FELL INTO THE BUSHES"
5 × 2 = 10 (A) · 8 × 12 = 96 (N) · 11 × 6 = 66 (B) · 9 × 5 = 45 (D) · 4 × 4 = 16 (L) · 8 × 10 = 80 (R) · 12 × 10 = 120 (S) · 7 × 9 = 63 (H) · 2 × 12 = 24 (T) · 6 × 9 = 54 (F) · 10 × 7 = 70 (O) · 7 × 7 = 49 (I) · 11 × 3 = 33 (U) · 11 × 7 = 77 (E)
Clue 5 (Division facts (1-12)): surviving statement (box 11) → Mia Moss
35 ÷ 7 = 5 · 56 ÷ 7 = 8 · 12 ÷ 12 = 1 · 108 ÷ 12 = 9 · 110 ÷ 11 = 10 · 132 ÷ 11 = 12 · 36 ÷ 12 = 3 · 72 ÷ 12 = 6 · 12 ÷ 6 = 2 · 44 ÷ 11 = 4 · 84 ÷ 12 = 7

About this mystery

Grade level: Grade 4 math
Math topics: Addition, Rounding, Subtraction, Multiplication, Division
Reading level: grades 3-4
Theme: The Mystery of the Whispering Jungle Map — set in Whispering Jungle Expedition
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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