Grade 4Reading: grades 3-4MultiplicationRoundingAdditionSubtractionDivision

The Mystery of the Lost Temple Key

Someone snuck into the Sunken Jungle Temple and swiped the golden sun key! Help the expedition team analyze the clues and catch the intruder.

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 Item	Artifact Carried	Dominant Hand	Hairstyle	Trap Used
Ethan Hunter	Machete Shield	Ancient Coin	Left Handed	Spiky Buzzcut	Sticky Sap
Ella Voyager	Compass Map	Silver Whistle	Right Handed	Spiky Buzzcut	Sneeze Powder
James Trapper	Rope Launcher	Golden Idol	Right Handed	Braided Ponytail	Loud Whistle
Zoe Tracker	Torch Glider	Ruby Jewel	Right Handed	Curly Afro	Loud Whistle
Leo Explorer	Torch Glider	Ancient Coin	Right Handed	Curly Afro	Sneeze Powder
Harper Camper	Grappling Hook	Jade Mask	Left Handed	Curly Afro	Sticky Sap
Ruby Pioneer	Machete Shield	Ancient Coin	Right Handed	Curly Afro	Loud Whistle
Lucas Climber	Grappling Hook	Jade Mask	Right Handed	Curly Afro	Loud Whistle
Maya Adventurer	Rope Launcher	Jade Mask	Left Handed	Braided Ponytail	Sticky Sap
Evelyn Guide	Machete Shield	Ancient Coin	Right Handed	Spiky Buzzcut	Sticky Sap
Charlotte Trailblazer	Machete Shield	Jade Mask	Left Handed	Curly Afro	Sticky Sap
Noah Navigator	Compass Map	Golden Idol	Right Handed	Spiky Buzzcut	Loud Whistle
Mia Runner	Compass Map	Ruby Jewel	Right Handed	Braided Ponytail	Loud Whistle
Ava Trekker	Grappling Hook	Ancient Coin	Left Handed	Braided Ponytail	Sticky Sap
Jack Scout	Machete Shield	Golden Idol	Right Handed	Curly Afro	Sticky Sap
Isla Discoverer	Machete Shield	Ancient Coin	Right Handed	Braided Ponytail	Sneeze Powder
Chloe Hiker	Grappling Hook	Ruby Jewel	Left Handed	Curly Afro	Sneeze Powder
Liam Wayfarer	Rope Launcher	Golden Idol	Right Handed	Curly Afro	Loud Whistle
Mason Outrider	Machete Shield	Silver Whistle	Right Handed	Curly Afro	Loud Whistle
Sofia Rover	Rope Launcher	Ruby Jewel	Left Handed	Braided Ponytail	Loud Whistle
Oliver Searcher	Grappling Hook	Golden Idol	Left Handed	Curly Afro	Loud Whistle

Clue 1

Multiplication facts (1-12)

You count the rows of supply crates packed for the jungle expedition.

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

108

110

144

9 × 9 =T

2 × 7 =E

11 × 8 =L

9 × 2 =W

12 × 12 =D

10 × 4 =B

6 × 9 =J

3 × 7 =N

11 × 2 =C

7 × 5 =Y

7 × 7 =R

11 × 10 =I

3 × 5 =O

12 × 9 =V

4 × 8 =S

1 × 4 =A

10 × 7 =U

6 × 7 =H

0/18 letters found

Clue 2

Rounding

The digital trail scanner rounds your location distance to the nearest hundred.

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

5000

110

2300

900

1300

2300

290

5000

200

130

5000

9000

4300

200

5000

110

130

4300

110

5000

110

9000

2000

Round 4,709 to the nearest thousandT

Round 8,573 to the nearest thousandN

Round 293 to the nearest tenC

Round 4,262 to the nearest hundredG

Round 89 to the nearest tenI

Round 2,382 to the nearest thousandD

Round 2,302 to the nearest hundredE

Round 46 to the nearest tenA

Round 73 to the nearest tenS

Round 180 to the nearest hundredW

Round 855 to the nearest hundredU

Round 1,277 to the nearest hundredP

Round 128 to the nearest tenR

Round 113 to the nearest tenH

0/14 letters found

Clue 3

Addition

You add up all the ancient map pieces collected along the river.

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

8219

2825

5821

4518

8134

2051

8423

9522

2990

3384

2825

8460

2990

5650

8219

4011

8460

8134

3384

8423

8460

2990

3699

8460

8219

5083

5933

4419

9522

2825

8219

9522

3699

3156 + 5063 =A

1896 + 2115 =R

3876 + 1774 =C

3489 + 2332 =O

4019 + 4441 =E

1372 + 1618 =S

3623 + 2310 =Y

3265 + 5158 =H

2217 + 1482 =N

1711 + 1673 =T

1375 + 676 =W

1468 + 3050 =U

1466 + 2953 =V

1375 + 1450 =L

3449 + 1634 =K

3189 + 6333 =I

3532 + 4602 =D

0/17 letters found

Clue 4

Subtraction

You calculate how many trail rations remain after feeding the camp dogs.

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

3385

4412

3958

8491

3757

7434

3385

3093

8491

1655

5195

3385

7866

8491

5219

3385

5855

3093

1655

3958

2929

2206

2929

6238

3385

8491

4696

5195

6238

3757

1655

4412

3016

3912 - 527 =A

6630 - 2672 =U

8745 - 3526 =W

5701 - 2685 =K

4400 - 2745 =O

8377 - 2522 =S

10664 - 4426 =E

4502 - 2296 =D

4784 - 1691 =F

9825 - 1959 =I

5926 - 1230 =T

6487 - 2730 =L

8648 - 4236 =C

9068 - 3873 =H

4978 - 2049 =N

9484 - 993 =R

8156 - 722 =Y

0/17 letters found

Clue 5

Division facts (1-12) — the last clue

You divide the total gold coins equally among the expedition tents.

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

4 ÷ 2 = ?

40 ÷ 4 = ?

54 ÷ 6 = ?

60 ÷ 10 = ?

56 ÷ 8 = ?

48 ÷ 12 = ?

24 ÷ 8 = ?

48 ÷ 6 = ?

40 ÷ 8 = ?

1 ÷ 1 = ?

88 ÷ 8 = ?

Step 2 — cross out the sentence with each answer

1.The villain glided over the pit, then snatched the golden idol.

2.The villain swung across the chasm, then stole the jade mask.

3.The villain shot a climbing rope, then pocketed the ancient coin.

4.The villain decoded the stone map, then stole the jade mask.

5.The villain glided over the pit, then stole the jade mask.

6.The villain swung across the chasm, then pocketed the ancient coin.

7.The villain cleared the thick vines, then grabbed the ruby jewel.

8.The villain decoded the stone map, then blew the silver whistle.

9.The villain shot a climbing rope, then snatched the golden idol.

10.The villain cleared the thick vines, then pocketed the ancient coin.

11.The villain swung across the chasm, then snatched the golden idol.

12.The villain cleared the thick vines, then blew the silver whistle.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Mystery of the Lost Temple Key

Culprit: Mason Outrider (Machete Shield · Silver Whistle · Right Handed · Curly Afro · Loud Whistle)

Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT CARRY A RUBY JEWEL"
9 × 9 = 81 (T) · 2 × 7 = 14 (E) · 11 × 8 = 88 (L) · 9 × 2 = 18 (W) · 12 × 12 = 144 (D) · 10 × 4 = 40 (B) · 6 × 9 = 54 (J) · 3 × 7 = 21 (N) · 11 × 2 = 22 (C) · 7 × 5 = 35 (Y) · 7 × 7 = 49 (R) · 11 × 10 = 110 (I) · 3 × 5 = 15 (O) · 12 × 9 = 108 (V) · 4 × 8 = 32 (S) · 1 × 4 = 4 (A) · 10 × 7 = 70 (U) · 6 × 7 = 42 (H)
Clue 2 (Rounding): "THE SUSPECT WAS WRITING WITH A RIGHT HAND"
Round 4,709 to the nearest thousand = 5000 (T) · Round 8,573 to the nearest thousand = 9000 (N) · Round 293 to the nearest ten = 290 (C) · Round 4,262 to the nearest hundred = 4300 (G) · Round 89 to the nearest ten = 90 (I) · Round 2,382 to the nearest thousand = 2000 (D) · Round 2,302 to the nearest hundred = 2300 (E) · Round 46 to the nearest ten = 50 (A) · Round 73 to the nearest ten = 70 (S) · Round 180 to the nearest hundred = 200 (W) · Round 855 to the nearest hundred = 900 (U) · Round 1,277 to the nearest hundred = 1300 (P) · Round 128 to the nearest ten = 130 (R) · Round 113 to the nearest ten = 110 (H)
Clue 3 (Addition): "A LOUD WHISTLE SCARED THE SNEAKY VILLAIN"
3156 + 5063 = 8219 (A) · 1896 + 2115 = 4011 (R) · 3876 + 1774 = 5650 (C) · 3489 + 2332 = 5821 (O) · 4019 + 4441 = 8460 (E) · 1372 + 1618 = 2990 (S) · 3623 + 2310 = 5933 (Y) · 3265 + 5158 = 8423 (H) · 2217 + 1482 = 3699 (N) · 1711 + 1673 = 3384 (T) · 1375 + 676 = 2051 (W) · 1468 + 3050 = 4518 (U) · 1466 + 2953 = 4419 (V) · 1375 + 1450 = 2825 (L) · 3449 + 1634 = 5083 (K) · 3189 + 6333 = 9522 (I) · 3532 + 4602 = 8134 (D)
Clue 4 (Subtraction): "A CURLY AFRO HAIR WAS FOUND NEAR THE LOCK"
3912 - 527 = 3385 (A) · 6630 - 2672 = 3958 (U) · 8745 - 3526 = 5219 (W) · 5701 - 2685 = 3016 (K) · 4400 - 2745 = 1655 (O) · 8377 - 2522 = 5855 (S) · 10664 - 4426 = 6238 (E) · 4502 - 2296 = 2206 (D) · 4784 - 1691 = 3093 (F) · 9825 - 1959 = 7866 (I) · 5926 - 1230 = 4696 (T) · 6487 - 2730 = 3757 (L) · 8648 - 4236 = 4412 (C) · 9068 - 3873 = 5195 (H) · 4978 - 2049 = 2929 (N) · 9484 - 993 = 8491 (R) · 8156 - 722 = 7434 (Y)
Clue 5 (Division facts (1-12)): surviving statement (box 12) → Mason Outrider
4 ÷ 2 = 2 · 40 ÷ 4 = 10 · 54 ÷ 6 = 9 · 60 ÷ 10 = 6 · 56 ÷ 8 = 7 · 48 ÷ 12 = 4 · 24 ÷ 8 = 3 · 48 ÷ 6 = 8 · 40 ÷ 8 = 5 · 1 ÷ 1 = 1 · 88 ÷ 8 = 11

About this mystery

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

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