Grade 4Reading: grades 3-4MultiplicationRoundingPlace valueAdditionMissing addends

The Temple of the Golden Monkey

Someone snuck into the camp tent and swiped the ancient map to the Sunken Ruins! Search the campsite for clues to catch the sneaky bandit before they reach the treasure room.

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	Special Skill	Watch Wrist	Hat Type	Scent Dislike
Survivor Uri	Signal Flare	Lock Picking	Left Wrist	Pith Helmet	Eucalyptus
Rover Noah	Pocket Spyglass	Rope Tying	Left Wrist	Canvas Visor	Citronella
Sailor Sam	Brass Compass	Lock Picking	Left Wrist	Pith Helmet	Peppermint
Scout Vera	Rope Ladder	Treasure Digging	Left Wrist	Pith Helmet	Citronella
Pioneer Zoe	Pocket Spyglass	Lock Picking	Left Wrist	Canvas Visor	Eucalyptus
Hunter Maya	Brass Compass	Map Reading	Right Wrist	Pith Helmet	Peppermint
Explorer Amy	Signal Flare	Treasure Digging	Left Wrist	Canvas Visor	Peppermint
Officer Ian	Pocket Spyglass	Treasure Digging	Left Wrist	Pith Helmet	Citronella
Chief Parker	Pocket Spyglass	Map Reading	Right Wrist	Canvas Visor	Citronella
Trekker Quinn	Brass Compass	Map Reading	Right Wrist	Leather Cap	Eucalyptus
Professor Gabe	Signal Flare	Map Reading	Left Wrist	Pith Helmet	Peppermint
Captain Blake	Signal Flare	Map Reading	Right Wrist	Pith Helmet	Peppermint
Pathfinder Olivia	Pocket Spyglass	Track Finding	Left Wrist	Pith Helmet	Peppermint
Ranger Cody	Grappling Hook	Map Reading	Left Wrist	Leather Cap	Peppermint
Agent Jade	Brass Compass	Map Reading	Right Wrist	Canvas Visor	Peppermint
Pilot Kai	Pocket Spyglass	Rope Tying	Left Wrist	Canvas Visor	Peppermint
Tracker Ethan	Signal Flare	Rope Tying	Left Wrist	Pith Helmet	Peppermint
Wanderer Will	Brass Compass	Treasure Digging	Left Wrist	Pith Helmet	Peppermint
Navigator Leo	Signal Flare	Map Reading	Left Wrist	Leather Cap	Citronella
Scout Daisy	Rope Ladder	Lock Picking	Right Wrist	Leather Cap	Citronella
Guide Fiona	Signal Flare	Lock Picking	Right Wrist	Canvas Visor	Citronella

Clue 1

Multiplication facts (1-12)

You count the supply crates packed in equal rows behind the mess tent to unlock the first notebook entry.

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

144

3 × 10 =T

8 × 8 =G

6 × 11 =D

9 × 6 =Y

9 × 9 =V

7 × 12 =H

12 × 12 =O

6 × 7 =A

7 × 7 =S

5 × 8 =L

1 × 9 =K

12 × 6 =I

9 × 4 =R

3 × 5 =B

2 × 1 =P

8 × 6 =E

2 × 11 =N

0/17 letters found

Clue 2

Rounding

The altimeter screen blinks dusty numbers so you round to the nearest hundred to find the exact altitude.

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

200

290

110

2000

900

9000

130

200

3700

110

700

500

3700

200

3000

290

430

900

200

290

110

370

110

230

200

3700

700

130

500

200

Round 230 to the nearest hundredT

Round 128 to the nearest tenI

Round 3,711 to the nearest hundredW

Round 292 to the nearest tenH

Round 8,955 to the nearest thousandD

Round 476 to the nearest hundredS

Round 433 to the nearest tenO

Round 920 to the nearest hundredN

Round 3,122 to the nearest thousandC

Round 231 to the nearest tenF

Round 1,883 to the nearest thousandB

Round 686 to the nearest hundredR

Round 22 to the nearest tenA

Round 366 to the nearest tenL

Round 108 to the nearest tenE

0/15 letters found

Clue 3

Place value

You inspect the numbers carved into a ancient stone monument to check the hundred thousands place.

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

600

300

6000

400

800

200

4000

300

800

200

9000

500

300

500

300

9000

400

300

8000

300

400

700

300

What is the value of the 3 in 8,937?T

What is the value of the 7 in 372?A

What is the value of the 4 in 4,732?L

What is the value of the 3 in 9,346?E

What is the value of the 8 in 28,609?S

What is the value of the 6 in 6,214?B

What is the value of the 5 in 2,514?P

What is the value of the 2 in 256?F

What is the value of the 8 in 6,816?D

What is the value of the 4 in 8,413?N

What is the value of the 6 in 4,362?R

What is the value of the 8 in 1,081?O

What is the value of the 6 in 3,613?H

What is the value of the 9 in 49,435?M

What is the value of the 4 in 541?I

What is the value of the 7 in 704?C

0/16 letters found

Clue 4

Addition

You add up all the brass coins found scattered along the overgrown jungle trail.

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

5105

8212

2749

6674

7950

4872

7894

3198

4872

6674

3779

5105

5250

7894

4872

2588

6674

5105

6674

7950

4872

9686

5105

3198

8212

5250

2749

6674

4872

2827 + 2278 =A

3170 + 4780 =H

2246 + 4428 =T

2744 + 2506 =S

1850 + 3022 =E

1805 + 944 =I

1175 + 1413 =F

1380 + 2399 =W

4119 + 5567 =C

4758 + 3136 =L

3145 + 5067 =P

1020 + 2178 =M

0/12 letters found

Clue 5

Missing addends — the last clue

You figure out the missing amount of trail mix needed to balance the expedition pack weight.

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

39 + ___ = 48

4 + ___ = 15

7 + ___ = 14

8 + ___ = 16

11 + ___ = 15

2 + ___ = 14

39 + ___ = 41

2 + ___ = 12

33 + ___ = 39

15 + ___ = 18

11 + ___ = 16

Step 2 — cross out the sentence with each answer

1.The villain navigated the tangled jungle with a brass compass, then dug up hidden artifacts using treasure digging.

2.The villain navigated the tangled jungle with a brass compass, then followed muddy footprints using track finding.

3.The villain lit up the trail using a signal flare, then dug up hidden artifacts using treasure digging.

4.The villain navigated the tangled jungle with a brass compass, then decoded the ancient path using map reading.

5.The villain spied on the camp with a pocket spyglass, then tied up the stolen gear using rope tying.

6.The villain scaled the stone wall with a rope ladder, then followed muddy footprints using track finding.

7.The villain lit up the trail using a signal flare, then decoded the ancient path using map reading.

8.The villain navigated the tangled jungle with a brass compass, then tied up the stolen gear using rope tying.

9.The villain spied on the camp with a pocket spyglass, then followed muddy footprints using track finding.

10.The villain scaled the stone wall with a rope ladder, then dug up hidden artifacts using treasure digging.

11.The villain navigated the tangled jungle with a brass compass, then opened the locked supply chest using lock picking.

12.The villain swung across the ravine using a grappling hook, then opened the locked supply chest using lock picking.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Temple of the Golden Monkey

Culprit: Wanderer Will (Brass Compass · Treasure Digging · Left Wrist · Pith Helmet · Peppermint)

Clue 1 (Multiplication facts (1-12)): "THE BANDIT DOES NOT HAVE ROPE TYING SKILLS"
3 × 10 = 30 (T) · 8 × 8 = 64 (G) · 6 × 11 = 66 (D) · 9 × 6 = 54 (Y) · 9 × 9 = 81 (V) · 7 × 12 = 84 (H) · 12 × 12 = 144 (O) · 6 × 7 = 42 (A) · 7 × 7 = 49 (S) · 5 × 8 = 40 (L) · 1 × 9 = 9 (K) · 12 × 6 = 72 (I) · 9 × 4 = 36 (R) · 3 × 5 = 15 (B) · 2 × 1 = 2 (P) · 8 × 6 = 48 (E) · 2 × 11 = 22 (N)
Clue 2 (Rounding): "THE BANDIT WEARS A WATCH ON THE LEFT WRIST"
Round 230 to the nearest hundred = 200 (T) · Round 128 to the nearest ten = 130 (I) · Round 3,711 to the nearest hundred = 3700 (W) · Round 292 to the nearest ten = 290 (H) · Round 8,955 to the nearest thousand = 9000 (D) · Round 476 to the nearest hundred = 500 (S) · Round 433 to the nearest ten = 430 (O) · Round 920 to the nearest hundred = 900 (N) · Round 3,122 to the nearest thousand = 3000 (C) · Round 231 to the nearest ten = 230 (F) · Round 1,883 to the nearest thousand = 2000 (B) · Round 686 to the nearest hundred = 700 (R) · Round 22 to the nearest ten = 20 (A) · Round 366 to the nearest ten = 370 (L) · Round 108 to the nearest ten = 110 (E)
Clue 3 (Place value): "THE BANDIT FLED FROM PEPPERMINT ESSENCE"
What is the value of the 3 in 8,937? = 30 (T) · What is the value of the 7 in 372? = 70 (A) · What is the value of the 4 in 4,732? = 4000 (L) · What is the value of the 3 in 9,346? = 300 (E) · What is the value of the 8 in 28,609? = 8000 (S) · What is the value of the 6 in 6,214? = 6000 (B) · What is the value of the 5 in 2,514? = 500 (P) · What is the value of the 2 in 256? = 200 (F) · What is the value of the 8 in 6,816? = 800 (D) · What is the value of the 4 in 8,413? = 400 (N) · What is the value of the 6 in 4,362? = 60 (R) · What is the value of the 8 in 1,081? = 80 (O) · What is the value of the 6 in 3,613? = 600 (H) · What is the value of the 9 in 49,435? = 9000 (M) · What is the value of the 4 in 541? = 40 (I) · What is the value of the 7 in 704? = 700 (C)
Clue 4 (Addition): "A PITH HELMET WAS LEFT AT THE CAMPSITE"
2827 + 2278 = 5105 (A) · 3170 + 4780 = 7950 (H) · 2246 + 4428 = 6674 (T) · 2744 + 2506 = 5250 (S) · 1850 + 3022 = 4872 (E) · 1805 + 944 = 2749 (I) · 1175 + 1413 = 2588 (F) · 1380 + 2399 = 3779 (W) · 4119 + 5567 = 9686 (C) · 4758 + 3136 = 7894 (L) · 3145 + 5067 = 8212 (P) · 1020 + 2178 = 3198 (M)
Clue 5 (Missing addends): surviving statement (box 1) → Wanderer Will
39 + ___ = 48 = 9 · 4 + ___ = 15 = 11 · 7 + ___ = 14 = 7 · 8 + ___ = 16 = 8 · 11 + ___ = 15 = 4 · 2 + ___ = 14 = 12 · 39 + ___ = 41 = 2 · 2 + ___ = 12 = 10 · 33 + ___ = 39 = 6 · 15 + ___ = 18 = 3 · 11 + ___ = 16 = 5

About this mystery

Grade level: Grade 4 math
Math topics: Multiplication, Rounding, Place value, Addition, Missing addends
Reading level: grades 3-4
Theme: The Temple of the Golden Monkey — set in The Sunken Jungle Ruins
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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