🏴☠️ PiratesGrade 4Reading: grades 3-4Place valueAdditionSubtractionRoundingDivision
The Mystery of the Missing Treasure Map
Someone snuck into the galley of The Golden Cutlass and swiped the legendary treasure map! The cook saw a mysterious pirate flee into the night. Examine the clues to catch the culprit before they sail away!
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 | Boarding Weapon | Pirate Pet | Dominant Hand | Look | Secret Weakness |
|---|---|---|---|---|---|
| William Fly | Cutlass Sword | Talking Crow | Left Handed | Bald Head | Fresh Lemons |
| Bartholomeu | Hook Hand | Sea Monkey | Right Handed | Black Beard | Fresh Lemons |
| Jean Lafitte | Boarding Axe | Black Cat | Left Handed | Red Hair | Loud Whistle |
| Blackbeard | Cutlass Sword | Black Cat | Left Handed | Bald Head | Bright Flashlight |
| Saddled Sam | Flintlock Pistol | Guard Dog | Right Handed | Bald Head | Bright Flashlight |
| Salty Rogers | Boarding Axe | Talking Crow | Right Handed | Red Hair | Loud Whistle |
| Howell Davis | Boarding Axe | Talking Crow | Right Handed | Black Beard | Bright Flashlight |
| Charles Vane | Cannon Ball | Green Parrot | Left Handed | Bald Head | Loud Whistle |
| Stede Bonnet | Cannon Ball | Black Cat | Left Handed | Bald Head | Bright Flashlight |
| Grace OMalley | Flintlock Pistol | Green Parrot | Right Handed | Bald Head | Bright Flashlight |
| Woodes Rogers | Cannon Ball | Talking Crow | Left Handed | Black Beard | Bright Flashlight |
| Barnaby Plunk | Cannon Ball | Talking Crow | Left Handed | Red Hair | Fresh Lemons |
| Thomas Tew | Boarding Axe | Guard Dog | Left Handed | Black Beard | Loud Whistle |
| John Rackham | Cutlass Sword | Black Cat | Right Handed | Bald Head | Bright Flashlight |
| Anne Bonny | Flintlock Pistol | Guard Dog | Left Handed | Black Beard | Loud Whistle |
| Edward England | Hook Hand | Sea Monkey | Right Handed | Bald Head | Fresh Lemons |
| Calico Jack | Cannon Ball | Guard Dog | Right Handed | Black Beard | Fresh Lemons |
| Samuel Bellamy | Cutlass Sword | Black Cat | Right Handed | Red Hair | Fresh Lemons |
| Pegleg Pete | Cutlass Sword | Sea Monkey | Right Handed | Bald Head | Bright Flashlight |
| Ching Shih | Cutlass Sword | Green Parrot | Right Handed | Bald Head | Bright Flashlight |
| Mary Read | Cannon Ball | Green Parrot | Left Handed | Black Beard | Bright Flashlight |
Clue 1
Place value
You search the captains desk and find a locked chest with a gold badge number showing place values.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
300
90
8000
9000
1000
80
T
300
1000
900
40
600
800
8000
20
40
800
T
300
90
1000
10
8000
1000
70
3000
1000
4000
600
600
800
70
What is the value of the 3 in 7,369?T
What is the value of the 8 in 983?P
What is the value of the 1 in 61,335?A
What is the value of the 7 in 2,574?G
What is the value of the 8 in 38,641?E
What is the value of the 6 in 1,613?D
What is the value of the 9 in 9,437?C
What is the value of the 8 in 4,866?O
What is the value of the 2 in 820?S
What is the value of the 4 in 649?N
What is the value of the 4 in 4,952?R
What is the value of the 9 in 7,911?I
What is the value of the 3 in 3,591?U
What is the value of the 1 in 8,010?V
What is the value of the 9 in 7,295?H
0/15 letters found
Clue 2
Addition
The quartermaster counts up all the extra iron nails found near the crime scene to reveal the next clue.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
3930
8152
7187
7164
5401
7187
4401
5315
2347
8183
5757
8089
4401
T
3930
7187
6096
7164
7187
7042
T
3930
8152
7187
8089
5757
7473
8152
T
3930
8152
4401
5401
7042
1362 + 2568 =T
3049 + 2266 =K
2269 + 2132 =A
4021 + 1736 =I
4187 + 3965 =H
2408 + 4756 =S
3720 + 1681 =N
2922 + 5167 =R
2660 + 4527 =E
4519 + 3664 =P
3105 + 2991 =U
3861 + 3612 =G
1275 + 1072 =Y
2514 + 4528 =D
0/14 letters found
Clue 3
Subtraction
You subtract the damaged wooden planks on deck from the total to clear away the false tracks.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
6259
2277
3608
3413
7806
5864
5864
1013
7806
3506
2510
5864
3608
5739
2510
7538
3362
5970
1013
7948
7538
7806
3426
2277
T
6259
2510
5864
1013
3198
2277
5864
7806
3426
2277
T
6259
7967 - 1708 =T
5075 - 1569 =N
5389 - 1976 =V
6909 - 3483 =G
6354 - 2992 =O
1076 - 63 =A
7553 - 4355 =S
8895 - 947 =B
3347 - 1070 =H
10532 - 2726 =I
7797 - 1933 =L
8224 - 2254 =M
8871 - 3132 =D
4888 - 2378 =F
10553 - 3015 =R
7693 - 4085 =E
0/16 letters found
Clue 4
Rounding
The ship spyglass display rounds the distance to the nearest league revealing a secret code.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
1300
170
A
1300
230
500
1100
700
A
1300
500
1700
700
110
230
700
4300
900
700
500
230
200
70
1100
900
200
50
900
1100
700
500
A
1300
1700
3000
Round 1,293 to the nearest hundredA
Round 4,331 to the nearest hundredC
Round 73 to the nearest tenG
Round 734 to the nearest hundredE
Round 3,176 to the nearest thousandK
Round 1,741 to the nearest hundredR
Round 228 to the nearest tenL
Round 179 to the nearest hundredI
Round 911 to the nearest hundredT
Round 109 to the nearest tenF
Round 461 to the nearest hundredD
Round 1,073 to the nearest hundredH
Round 171 to the nearest tenB
Round 50 to the nearest tenN
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
You divide the stolen gold coins evenly into pirate sacks exposing the final scrap of evidence.
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
16 ÷ 4 = ?
40 ÷ 5 = ?
28 ÷ 4 = ?
3 ÷ 1 = ?
30 ÷ 3 = ?
63 ÷ 7 = ?
50 ÷ 10 = ?
72 ÷ 6 = ?
22 ÷ 11 = ?
6 ÷ 1 = ?
99 ÷ 9 = ?
Step 2 — cross out the sentence with each answer
1.The villain swings a cutlass sword, then commands a sea monkey.
2.The villain chops with a boarding axe, then commands a sea monkey.
3.The villain rolls a heavy cannon ball, then whistles to a guard dog.
4.The villain swings a cutlass sword, then releases a black cat.
5.The villain swipes a sharp hook hand, then releases a black cat.
6.The villain chops with a boarding axe, then signals a green parrot.
7.The villain swings a cutlass sword, then signals a green parrot.
8.The villain fires a flintlock pistol, then signals a green parrot.
9.The villain chops with a boarding axe, then whistles to a guard dog.
10.The villain rolls a heavy cannon ball, then sends out a talking crow.
11.The villain swipes a sharp hook hand, then commands a sea monkey.
12.The villain fires a flintlock pistol, then whistles to a guard dog.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Missing Treasure Map
Culprit: Pegleg Pete (Cutlass Sword · Sea Monkey · Right Handed · Bald Head · Bright Flashlight)
- Clue 1 (Place value): "THE CAPTAIN DOES NOT HAVE A GUARD DOG"What is the value of the 3 in 7,369? = 300 (T) · What is the value of the 8 in 983? = 80 (P) · What is the value of the 1 in 61,335? = 1000 (A) · What is the value of the 7 in 2,574? = 70 (G) · What is the value of the 8 in 38,641? = 8000 (E) · What is the value of the 6 in 1,613? = 600 (D) · What is the value of the 9 in 9,437? = 9000 (C) · What is the value of the 8 in 4,866? = 800 (O) · What is the value of the 2 in 820? = 20 (S) · What is the value of the 4 in 649? = 40 (N) · What is the value of the 4 in 4,952? = 4000 (R) · What is the value of the 9 in 7,911? = 900 (I) · What is the value of the 3 in 3,591? = 3000 (U) · What is the value of the 1 in 8,010? = 10 (V) · What is the value of the 9 in 7,295? = 90 (H)
- Clue 2 (Addition): "THE SNEAKY PIRATE USED THE RIGHT HAND"1362 + 2568 = 3930 (T) · 3049 + 2266 = 5315 (K) · 2269 + 2132 = 4401 (A) · 4021 + 1736 = 5757 (I) · 4187 + 3965 = 8152 (H) · 2408 + 4756 = 7164 (S) · 3720 + 1681 = 5401 (N) · 2922 + 5167 = 8089 (R) · 2660 + 4527 = 7187 (E) · 4519 + 3664 = 8183 (P) · 3105 + 2991 = 6096 (U) · 3861 + 3612 = 7473 (G) · 1275 + 1072 = 2347 (Y) · 2514 + 4528 = 7042 (D)
- Clue 3 (Subtraction): "THE VILLAIN FLED FROM A BRIGHT FLASHLIGHT"7967 - 1708 = 6259 (T) · 5075 - 1569 = 3506 (N) · 5389 - 1976 = 3413 (V) · 6909 - 3483 = 3426 (G) · 6354 - 2992 = 3362 (O) · 1076 - 63 = 1013 (A) · 7553 - 4355 = 3198 (S) · 8895 - 947 = 7948 (B) · 3347 - 1070 = 2277 (H) · 10532 - 2726 = 7806 (I) · 7797 - 1933 = 5864 (L) · 8224 - 2254 = 5970 (M) · 8871 - 3132 = 5739 (D) · 4888 - 2378 = 2510 (F) · 10553 - 3015 = 7538 (R) · 7693 - 4085 = 3608 (E)
- Clue 4 (Rounding): "A BALD HEAD REFLECTED LIGHT IN THE DARK"Round 1,293 to the nearest hundred = 1300 (A) · Round 4,331 to the nearest hundred = 4300 (C) · Round 73 to the nearest ten = 70 (G) · Round 734 to the nearest hundred = 700 (E) · Round 3,176 to the nearest thousand = 3000 (K) · Round 1,741 to the nearest hundred = 1700 (R) · Round 228 to the nearest ten = 230 (L) · Round 179 to the nearest hundred = 200 (I) · Round 911 to the nearest hundred = 900 (T) · Round 109 to the nearest ten = 110 (F) · Round 461 to the nearest hundred = 500 (D) · Round 1,073 to the nearest hundred = 1100 (H) · Round 171 to the nearest ten = 170 (B) · Round 50 to the nearest ten = 50 (N)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Pegleg Pete16 ÷ 4 = 4 · 40 ÷ 5 = 8 · 28 ÷ 4 = 7 · 3 ÷ 1 = 3 · 30 ÷ 3 = 10 · 63 ÷ 7 = 9 · 50 ÷ 10 = 5 · 72 ÷ 6 = 12 · 22 ÷ 11 = 2 · 6 ÷ 1 = 6 · 99 ÷ 9 = 11
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Addition, Subtraction, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Mystery of the Missing Treasure Map — set in The Golden Cutlass, a creaking pirate ship docked at Skull Rock
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects