Grade 4Reading: grades 3-4MultiplicationRoundingAdditionSubtractionDivision

Mystery at Sunken Temple

Someone snuck into the temple ruins during the night and snatched a valuable artifact. Use your detective skills to find the thief before they vanish into 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	Secret Gear	Artifact	Stance	Bandana Color	Trap Disarmer
Lara	Grappling Hook	Jade Compass	Right Handed	Emerald Bandana	Water Splash
Marco	Rope Ladder	Crystal Map	Right Handed	Emerald Bandana	Mirror Flash
Roald	Flash Grenade	Ruby Skull	Right Handed	Emerald Bandana	Mirror Flash
Diego	Grappling Hook	Silver Mask	Right Handed	Emerald Bandana	Water Splash
Elena	Flash Grenade	Silver Mask	Right Handed	Emerald Bandana	Mirror Flash
Percy	Flash Grenade	Crystal Map	Right Handed	Emerald Bandana	Water Splash
Sally	Glider Wing	Golden Idol	Right Handed	Sapphire Bandana	Mirror Flash
Thor	Rope Ladder	Crystal Map	Right Handed	Sapphire Bandana	Water Splash
Vasco	Rope Ladder	Silver Mask	Right Handed	Emerald Bandana	Water Splash
Marcus	Grappling Hook	Silver Mask	Left Handed	Emerald Bandana	Mirror Flash
Hiram	Grappling Hook	Ruby Skull	Right Handed	Crimson Bandana	Whistle Blow
Gertrude	Rope Ladder	Silver Mask	Left Handed	Crimson Bandana	Water Splash
Jacques	Flash Grenade	Golden Idol	Right Handed	Emerald Bandana	Mirror Flash
Amelia	Rope Ladder	Silver Mask	Left Handed	Emerald Bandana	Water Splash
Nellie	Smoke Bomb	Crystal Map	Right Handed	Sapphire Bandana	Mirror Flash
Sydney	Glider Wing	Silver Mask	Left Handed	Emerald Bandana	Water Splash
Nate	Grappling Hook	Silver Mask	Right Handed	Crimson Bandana	Water Splash
Indy	Grappling Hook	Ruby Skull	Left Handed	Sapphire Bandana	Water Splash
Freya	Grappling Hook	Jade Compass	Right Handed	Sapphire Bandana	Water Splash
Marion	Flash Grenade	Golden Idol	Right Handed	Emerald Bandana	Water Splash
Henry	Flash Grenade	Ruby Skull	Left Handed	Emerald Bandana	Whistle Blow

Clue 1

Multiplication facts (1-12)

You count the supply crates packed into equal rows near the temple 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.

132

2 × 11 =T

11 × 12 =O

7 × 2 =C

4 × 1 =S

7 × 8 =Y

1 × 5 =E

10 × 1 =U

9 × 9 =D

6 × 10 =H

9 × 6 =L

1 × 12 =P

4 × 9 =I

11 × 6 =R

1 × 11 =A

11 × 8 =G

11 × 9 =N

0/16 letters found

Clue 2

Rounding

The jungle digital scanner gives a rough estimate 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.

1100

110

5000

2300

7000

1100

5000

370

1100

3000

2900

2300

7000

500

1100

7000

2000

1100

2900

500

370

Round 1,076 to the nearest hundredT

Round 2,913 to the nearest hundredA

Round 2,350 to the nearest thousandG

Round 71 to the nearest tenC

Round 20 to the nearest tenE

Round 484 to the nearest hundredN

Round 3,312 to the nearest thousandM

Round 4,576 to the nearest thousandL

Round 6,928 to the nearest thousandI

Round 2,307 to the nearest hundredP

Round 372 to the nearest tenD

Round 110 to the nearest tenU

Round 88 to the nearest tenR

Round 28 to the nearest tenH

0/14 letters found

Clue 3

Addition

You add up all the coins recovered from the ancient stone 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.

8853

9838

4164

4337

8541

2301

6944

8853

5002

5447

6512

7266

9107

9853

8853

7266

9781

6994

6512

4087

6350

5447

5002

9781

5447

6350

4337

9853

8853

4337

7477

7851

8853

8541

2301

3013 + 5840 =A

1277 + 1024 =K

2183 + 2819 =T

4197 + 2747 =W

3335 + 4516 =B

3769 + 6069 =Q

3597 + 4944 =C

3274 + 3992 =S

4309 + 5472 =H

1600 + 2564 =U

4158 + 3319 =N

6205 + 3648 =L

4571 + 2423 =D

4194 + 2318 =R

3471 + 1976 =E

4727 + 4380 =P

1289 + 2798 =O

4371 + 1979 =V

2431 + 1906 =I

0/19 letters found

Clue 4

Subtraction

You calculate how many trail torches remain after taking some away.

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

2189

8022

5080

6611

5080

2384

2189

4754

5798

1675

2189

8022

5798

2189

8022

2189

5141

6179

1675

5080

2384

5141

2384

8155

5453

5080

6179

8022

7916

7869

5080

1675

7321

1079

7869

5080

1079

4670 - 2481 =A

9418 - 1263 =O

6776 - 1635 =F

5733 - 280 =Z

6588 - 4204 =R

12822 - 4906 =T

10494 - 4696 =D

5709 - 629 =E

9828 - 1959 =H

11491 - 4880 =M

2120 - 1041 =S

6044 - 1290 =L

9681 - 1659 =N

2428 - 753 =B

8388 - 2209 =I

8597 - 1276 =U

0/16 letters found

Clue 5

Division facts (1-12) — the last clue

You share the remaining canteen drops equally among the expedition crew.

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 = ?

11 ÷ 11 = ?

90 ÷ 9 = ?

49 ÷ 7 = ?

33 ÷ 3 = ?

2 ÷ 1 = ?

24 ÷ 6 = ?

36 ÷ 6 = ?

36 ÷ 4 = ?

88 ÷ 11 = ?

120 ÷ 10 = ?

Step 2 — cross out the sentence with each answer

1.The villain swung past using a grappling hook, then pocketed the silver mask.

2.The villain climbed up with a rope ladder, then snatched the ruby skull.

3.The villain stunned guards with a flash grenade, then stole the crystal map.

4.The villain climbed up with a rope ladder, then swiped the jade compass.

5.The villain climbed up with a rope ladder, then pocketed the silver mask.

6.The villain swung past using a grappling hook, then stole the crystal map.

7.The villain stunned guards with a flash grenade, then swiped the jade compass.

8.The villain glided down with a glider wing, then grabbed the golden idol.

9.The villain glided down with a glider wing, then pocketed the silver mask.

10.The villain swung past using a grappling hook, then swiped the jade compass.

11.The villain swung past using a grappling hook, then snatched the ruby skull.

12.The villain stunned guards with a flash grenade, then pocketed the silver mask.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — Mystery at Sunken Temple

Culprit: Vasco (Rope Ladder · Silver Mask · Right Handed · Emerald Bandana · Water Splash)

Clue 1 (Multiplication facts (1-12)): "THE SUSPECT DOES NOT CARRY THE GOLDEN IDOL"
2 × 11 = 22 (T) · 11 × 12 = 132 (O) · 7 × 2 = 14 (C) · 4 × 1 = 4 (S) · 7 × 8 = 56 (Y) · 1 × 5 = 5 (E) · 10 × 1 = 10 (U) · 9 × 9 = 81 (D) · 6 × 10 = 60 (H) · 9 × 6 = 54 (L) · 1 × 12 = 12 (P) · 4 × 9 = 36 (I) · 11 × 6 = 66 (R) · 1 × 11 = 11 (A) · 11 × 8 = 88 (G) · 11 × 9 = 99 (N)
Clue 2 (Rounding): "THE CULPRIT HELD THE MAP IN THEIR RIGHT HAND"
Round 1,076 to the nearest hundred = 1100 (T) · Round 2,913 to the nearest hundred = 2900 (A) · Round 2,350 to the nearest thousand = 2000 (G) · Round 71 to the nearest ten = 70 (C) · Round 20 to the nearest ten = 20 (E) · Round 484 to the nearest hundred = 500 (N) · Round 3,312 to the nearest thousand = 3000 (M) · Round 4,576 to the nearest thousand = 5000 (L) · Round 6,928 to the nearest thousand = 7000 (I) · Round 2,307 to the nearest hundred = 2300 (P) · Round 372 to the nearest ten = 370 (D) · Round 110 to the nearest ten = 110 (U) · Round 88 to the nearest ten = 90 (R) · Round 28 to the nearest ten = 30 (H)
Clue 3 (Addition): "A QUICK WATER SPLASH DROVE THE VILLAIN BACK"
3013 + 5840 = 8853 (A) · 1277 + 1024 = 2301 (K) · 2183 + 2819 = 5002 (T) · 4197 + 2747 = 6944 (W) · 3335 + 4516 = 7851 (B) · 3769 + 6069 = 9838 (Q) · 3597 + 4944 = 8541 (C) · 3274 + 3992 = 7266 (S) · 4309 + 5472 = 9781 (H) · 1600 + 2564 = 4164 (U) · 4158 + 3319 = 7477 (N) · 6205 + 3648 = 9853 (L) · 4571 + 2423 = 6994 (D) · 4194 + 2318 = 6512 (R) · 3471 + 1976 = 5447 (E) · 4727 + 4380 = 9107 (P) · 1289 + 2798 = 4087 (O) · 4371 + 1979 = 6350 (V) · 2431 + 1906 = 4337 (I)
Clue 4 (Subtraction): "AN EMERALD BANDANA FIBER FROZE IN THE BUSHES"
4670 - 2481 = 2189 (A) · 9418 - 1263 = 8155 (O) · 6776 - 1635 = 5141 (F) · 5733 - 280 = 5453 (Z) · 6588 - 4204 = 2384 (R) · 12822 - 4906 = 7916 (T) · 10494 - 4696 = 5798 (D) · 5709 - 629 = 5080 (E) · 9828 - 1959 = 7869 (H) · 11491 - 4880 = 6611 (M) · 2120 - 1041 = 1079 (S) · 6044 - 1290 = 4754 (L) · 9681 - 1659 = 8022 (N) · 2428 - 753 = 1675 (B) · 8388 - 2209 = 6179 (I) · 8597 - 1276 = 7321 (U)
Clue 5 (Division facts (1-12)): surviving statement (box 5) → Vasco
30 ÷ 10 = 3 · 11 ÷ 11 = 1 · 90 ÷ 9 = 10 · 49 ÷ 7 = 7 · 33 ÷ 3 = 11 · 2 ÷ 1 = 2 · 24 ÷ 6 = 4 · 36 ÷ 6 = 6 · 36 ÷ 4 = 9 · 88 ÷ 11 = 8 · 120 ÷ 10 = 12

About this mystery

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

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