🏴☠️ PiratesGrade 3Reading: grades 1-2SubtractionMultiplicationWord problemsRoundingDivision
The Case of the Missing Golden Skull
Someone snuck into the ship pantry and stole the Golden Skull trophy! Detective Barnaby must collect clues around the deck to find out which pirate took it.
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 | Main Tool | Extra Gear | Dominant Hand | Look | Fear |
|---|---|---|---|---|---|
| Barnaby Plum | iron anchor | squawking parrot | right handed | red ponytail | loud thunder |
| Captain Flint | iron anchor | silver hook | left handed | braided beard | tickling feathers |
| Grace O Malley | heavy compass | ship bell | right handed | black bandana | tickling feathers |
| Salty Sam | brass telescope | squawking parrot | right handed | red ponytail | tickling feathers |
| Mary Read | map scroll | squawking parrot | left handed | black bandana | tickling feathers |
| Edward England | cutlass | bright lantern | left handed | braided beard | loud thunder |
| John Rackham | map scroll | bright lantern | left handed | red ponytail | tickling feathers |
| Bartholomew Roberts | brass telescope | bright lantern | left handed | black bandana | tickling feathers |
| Howell Davis | iron anchor | squawking parrot | right handed | braided beard | tickling feathers |
| Francois l Olonnais | iron anchor | skull flag | left handed | black bandana | loud thunder |
| Jean Lafitte | brass telescope | bright lantern | right handed | black bandana | loud thunder |
| Zheng Yi Sao | brass telescope | skull flag | left handed | black bandana | tickling feathers |
| Thomas Tew | map scroll | silver hook | left handed | black bandana | tickling feathers |
| Henry Morgan | map scroll | ship bell | right handed | braided beard | loud thunder |
| William Dampier | cutlass | squawking parrot | left handed | braided beard | tickling feathers |
| Samuel Bellamy | heavy compass | silver hook | left handed | black bandana | loud thunder |
| Anne Bonny | cutlass | silver hook | left handed | braided beard | loud thunder |
| Blackbeard | brass telescope | ship bell | right handed | black bandana | loud thunder |
| Calico Jack | map scroll | bright lantern | right handed | braided beard | tickling feathers |
| Sadie the Goat | iron anchor | ship bell | left handed | red ponytail | bright sunlight |
| Stede Bonnet | brass telescope | silver hook | left handed | black bandana | tickling feathers |
Clue 1
Subtraction
Quartermaster Sam counts the gold coins left in the chest to see what was taken.
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
595
746
597
139
881
597
458
412
259
336
709
507
507
458
709
881
501
526
597
139
881
526
T
595
496
139
597
458
507
458
881
T
595
597
514
881
704 - 109 =T
824 - 227 =E
886 - 385 =D
837 - 323 =R
514 - 56 =A
828 - 82 =H
604 - 108 =U
1059 - 350 =I
739 - 327 =K
817 - 291 =O
1122 - 241 =N
457 - 198 =Y
886 - 379 =L
499 - 360 =S
339 - 3 =V
0/15 letters found
Clue 2
Multiplication facts (1-12)
Barnaby checks the rows of cannonballs stacked on the deck.
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
36
96
16
30
32
70
70
6
96
16
20
66
T
36
96
16
25
10
21
55
7
T
36
96
T
36
96
16
20
16
42
T
36
96
10
88
66
6 × 6 =T
2 × 5 =A
4 × 4 =E
10 × 7 =O
6 × 5 =C
11 × 8 =N
7 × 1 =I
6 × 11 =D
7 × 3 =P
5 × 11 =W
8 × 12 =H
5 × 5 =M
10 × 2 =L
6 × 1 =K
6 × 7 =F
4 × 8 =R
0/16 letters found
Clue 3
Word problems
The crew solves simple story problems to figure out supply counts.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
T
7
18
41
32
78
18
57
30
F
E
A
T
7
H
E
R
S
There were 27 shiny pearls. 20 were used up. How many shiny pearls are left?T
Quartermaster Sam found 22 shiny pearls yesterday and 56 more today. How many shiny pearls in all?L
Quartermaster Sam lined up 2 rows of 9 cannonballs. How many cannonballs in all?I
There were 71 treasure maps. 39 were used up. How many treasure maps are left?K
Quartermaster Sam lined up 6 rows of 5 cannonballs. How many cannonballs in all?G
Quartermaster Sam found 8 treasure maps yesterday and 33 more today. How many treasure maps in all?C
There were 81 treasure maps. 24 were used up. How many treasure maps are left?N
0/7 letters found
Clue 4
Rounding
The ship spyglass dial rounds numbers 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.
D
30
200
90
200
9000
90
5000
300
200
70
6000
800
7000
2000
D
30
60
500
600
60
9000
20
500
60
2000
D
30
60
2000
60
90
3000
400
200
60
D
30
Round 33 to the nearest tenD
Round 73 to the nearest tenS
Round 440 to the nearest hundredR
Round 1,565 to the nearest thousandN
Round 6,984 to the nearest thousandU
Round 64 to the nearest tenA
Round 8,755 to the nearest thousandC
Round 291 to the nearest hundredV
Round 5,772 to the nearest thousandF
Round 17 to the nearest tenK
Round 4,871 to the nearest thousandI
Round 500 to the nearest hundredB
Round 231 to the nearest hundredE
Round 92 to the nearest tenT
Round 799 to the nearest hundredO
Round 3,248 to the nearest thousandH
Round 622 to the nearest hundredL
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
Captain Coral divides the treasure sacks equally among the guard posts.
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
21 ÷ 7 = ?
14 ÷ 2 = ?
108 ÷ 9 = ?
18 ÷ 2 = ?
32 ÷ 4 = ?
99 ÷ 9 = ?
40 ÷ 10 = ?
48 ÷ 8 = ?
50 ÷ 5 = ?
25 ÷ 5 = ?
6 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain unrolled a map scroll, then whistled to a squawking parrot.
2.The villain unrolled a map scroll, then rang a ship bell.
3.The villain unrolled a map scroll, then waved a silver hook.
4.The villain peered through a brass telescope, then rang a ship bell.
5.The villain dropped an iron anchor, then lit a bright lantern.
6.The villain brandished a cutlass, then waved a silver hook.
7.The villain peered through a brass telescope, then waved a silver hook.
8.The villain unrolled a map scroll, then lit a bright lantern.
9.The villain dropped an iron anchor, then raised a skull flag.
10.The villain brandished a cutlass, then rang a ship bell.
11.The villain brandished a cutlass, then whistled to a squawking parrot.
12.The villain peered through a brass telescope, then raised a skull flag.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Golden Skull
Culprit: Mary Read (map scroll · squawking parrot · left handed · black bandana · tickling feathers)
- Clue 1 (Subtraction): "THE SNEAKY VILLAIN DOES NOT USE A LANTERN"704 - 109 = 595 (T) · 824 - 227 = 597 (E) · 886 - 385 = 501 (D) · 837 - 323 = 514 (R) · 514 - 56 = 458 (A) · 828 - 82 = 746 (H) · 604 - 108 = 496 (U) · 1059 - 350 = 709 (I) · 739 - 327 = 412 (K) · 817 - 291 = 526 (O) · 1122 - 241 = 881 (N) · 457 - 198 = 259 (Y) · 886 - 379 = 507 (L) · 499 - 360 = 139 (S) · 339 - 3 = 336 (V)
- Clue 2 (Multiplication facts (1-12)): "THE CROOK HELD THE MAP WITH THE LEFT HAND"6 × 6 = 36 (T) · 2 × 5 = 10 (A) · 4 × 4 = 16 (E) · 10 × 7 = 70 (O) · 6 × 5 = 30 (C) · 11 × 8 = 88 (N) · 7 × 1 = 7 (I) · 6 × 11 = 66 (D) · 7 × 3 = 21 (P) · 5 × 11 = 55 (W) · 8 × 12 = 96 (H) · 5 × 5 = 25 (M) · 10 × 2 = 20 (L) · 6 × 1 = 6 (K) · 6 × 7 = 42 (F) · 4 × 8 = 32 (R)
- Clue 3 (Word problems): "TICKLING FEATHERS"There were 27 shiny pearls. 20 were used up. How many shiny pearls are left? = 7 (T) · Quartermaster Sam found 22 shiny pearls yesterday and 56 more today. How many shiny pearls in all? = 78 (L) · Quartermaster Sam lined up 2 rows of 9 cannonballs. How many cannonballs in all? = 18 (I) · There were 71 treasure maps. 39 were used up. How many treasure maps are left? = 32 (K) · Quartermaster Sam lined up 6 rows of 5 cannonballs. How many cannonballs in all? = 30 (G) · Quartermaster Sam found 8 treasure maps yesterday and 33 more today. How many treasure maps in all? = 41 (C) · There were 81 treasure maps. 24 were used up. How many treasure maps are left? = 57 (N)
- Clue 4 (Rounding): "DETECTIVES FOUND A BLACK BANDANA THREAD"Round 33 to the nearest ten = 30 (D) · Round 73 to the nearest ten = 70 (S) · Round 440 to the nearest hundred = 400 (R) · Round 1,565 to the nearest thousand = 2000 (N) · Round 6,984 to the nearest thousand = 7000 (U) · Round 64 to the nearest ten = 60 (A) · Round 8,755 to the nearest thousand = 9000 (C) · Round 291 to the nearest hundred = 300 (V) · Round 5,772 to the nearest thousand = 6000 (F) · Round 17 to the nearest ten = 20 (K) · Round 4,871 to the nearest thousand = 5000 (I) · Round 500 to the nearest hundred = 500 (B) · Round 231 to the nearest hundred = 200 (E) · Round 92 to the nearest ten = 90 (T) · Round 799 to the nearest hundred = 800 (O) · Round 3,248 to the nearest thousand = 3000 (H) · Round 622 to the nearest hundred = 600 (L)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Mary Read21 ÷ 7 = 3 · 14 ÷ 2 = 7 · 108 ÷ 9 = 12 · 18 ÷ 2 = 9 · 32 ÷ 4 = 8 · 99 ÷ 9 = 11 · 40 ÷ 10 = 4 · 48 ÷ 8 = 6 · 50 ÷ 5 = 10 · 25 ÷ 5 = 5 · 6 ÷ 3 = 2
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Subtraction, Multiplication, Word problems, Rounding, Division
- Reading level
- grades 1-2
- Theme
- The Case of the Missing Golden Skull — set in The pirate ship Sea Dragon sailing the Sunny Sea
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects