🏴☠️ Mermaids, PiratesGrade 2Reading: grades 3-4Place valueAdditionSubtractionMultiplicationDivision
The Pearl of Coral Cove
The legendary Pearl of Tide Control has been taken from the Royal Mermaid Guardian! If the sneaky pirate who took it escapes Coral Cove, the tides will run wild forever. It is up to you to follow the clues, track the culprit, and save the ocean!
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 | Signature Move | Special Gear | Dominant Hand | Hair Color | Distraction |
|---|---|---|---|---|---|
| Salty Sam | sword spin | golden compass | left handed | shell white | sweet coconut |
| Captain Redbeard | tidal wave blast | parrot helper | right handed | coral pink | sweet coconut |
| Scurvy Pete | tidal wave blast | parrot helper | right handed | shell white | sweet coconut |
| Barnacle Bill | coral trap | parrot helper | left handed | coral pink | sweet coconut |
| Sharktooth Sally | fog whistle | golden compass | left handed | seaweed green | loud whistle |
| Captain Cutlass | coral trap | shark whistle | right handed | seaweed green | sweet coconut |
| Captain Bluegill | tidal wave blast | golden compass | left handed | coral pink | sweet coconut |
| Finny McFin | sword spin | parrot helper | right handed | seaweed green | shiny pearls |
| Captain Hook | coral trap | parrot helper | left handed | seaweed green | loud whistle |
| Mermaid Serena | fog whistle | speed swimming | left handed | shell white | loud whistle |
| Captain Blackbeard | coral trap | spyglass zoom | right handed | coral pink | sweet coconut |
| Mermaid Melody | coral trap | shark whistle | right handed | coral pink | sweet coconut |
| Sailor Shelly | anchor drop | shark whistle | right handed | coral pink | sweet coconut |
| Calico Jack | sword spin | speed swimming | right handed | seaweed green | shiny pearls |
| Patchy Paul | tidal wave blast | golden compass | right handed | seaweed green | sweet coconut |
| Coral Pearl | coral trap | golden compass | right handed | coral pink | sweet coconut |
| Mermaid Adella | fog whistle | parrot helper | right handed | seaweed green | loud whistle |
| Anne Bonny | anchor drop | speed swimming | left handed | shell white | loud whistle |
| Mary Read | sword spin | parrot helper | right handed | coral pink | loud whistle |
| Mermaid Coral | fog whistle | parrot helper | right handed | shell white | shiny pearls |
| Siren Marina | coral trap | spyglass zoom | right handed | seaweed green | sweet coconut |
Clue 1
Place value
The guard found a locked pirate chest. Look at the value of the digit in the tens place of the code to unlock the first 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
90
65
88
85
33
69
69
81
33
63
83
73
88
56
63
73
T
90
35
56
88
81
56
32
94
68
69
81
56
56
50
73
73
93
What number has 9 tens and 0 ones?T
What number has 8 tens and 5 ones?V
What number has 6 tens and 9 ones?L
What number has 7 tens and 3 ones?O
What number has 5 tens and 0 ones?Z
What number has 3 tens and 3 ones?I
What number has 8 tens and 8 ones?E
What number has 8 tens and 3 ones?D
What number has 9 tens and 3 ones?M
What number has 8 tens and 1 one?A
What number has 5 tens and 6 ones?S
What number has 6 tens and 3 ones?N
What number has 6 tens and 8 ones?G
What number has 3 tens and 2 ones?P
What number has 3 tens and 5 ones?U
What number has 9 tens and 4 ones?Y
What number has 6 tens and 5 ones?H
0/17 letters found
Clue 2
Addition
Mermaid Melody is counting the glowing starfish washed up on the beach. Add them all together to find the second 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
95
52
54
66
70
86
52
T
95
52
77
84
32
54
32
T
95
52
70
54
40
65
66
24
T
95
54
77
84
24
T
95
54
67 + 28 =T
26 + 28 =E
15 + 9 =O
16 + 36 =H
54 + 32 =G
54 + 23 =A
22 + 43 =W
25 + 15 =F
28 + 42 =I
13 + 19 =D
37 + 47 =N
46 + 20 =R
0/12 letters found
Clue 3
Subtraction
A flock of seagulls swooped down and stole some of our shiny gold coins. Subtract the stolen coins to reveal the third 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
23
15
47
40
50
47
16
47
54
45
39
T
23
16
55
34
T
23
47
54
35
40
39
50
47
47
T
23
34
87
34
87
71
68
T
23
46 - 23 =T
62 - 22 =Y
70 - 15 =A
48 - 33 =H
94 - 26 =U
43 - 8 =B
109 - 22 =O
52 - 2 =W
53 - 14 =S
74 - 27 =E
63 - 9 =D
73 - 28 =I
47 - 13 =C
80 - 9 =N
17 - 1 =R
0/15 letters found
Clue 4
Multiplication facts (1-12)
Our scouts spotted rows of coconut barrels lined up on the pirate ship deck. Multiply the rows to get the fourth 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.
A
4
56
32
66
A
4
21
144
1
12
9
1
66
A
4
88
24
25
21
14
7
A
4
25
66
35
A
4
56
88
72
12
32
1 × 4 =A
6 × 12 =E
1 × 7 =H
6 × 2 =F
7 × 8 =S
7 × 5 =W
12 × 2 =P
9 × 1 =C
1 × 1 =O
4 × 8 =T
2 × 7 =K
3 × 7 =N
5 × 5 =I
11 × 6 =R
11 × 8 =L
12 × 12 =D
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The friendly sea turtles want to share their sweet kelp treats equally. Divide the treats to unlock the final clue.
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 ÷ 5 = ?
33 ÷ 11 = ?
12 ÷ 1 = ?
88 ÷ 8 = ?
6 ÷ 6 = ?
24 ÷ 6 = ?
120 ÷ 12 = ?
54 ÷ 6 = ?
42 ÷ 6 = ?
16 ÷ 2 = ?
6 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain spins a rusty cutlass, then looks through their spyglass.
2.The villain spins a rusty cutlass, then checks their golden compass.
3.The villain blasts a tidal wave, then sends their parrot helper.
4.The villain blasts a tidal wave, then starts speed swimming away.
5.The villain throws a coral trap, then checks their golden compass.
6.The villain throws a coral trap, then blows a shark whistle.
7.The villain blasts a tidal wave, then blows a shark whistle.
8.The villain throws a coral trap, then looks through their spyglass.
9.The villain blows a spooky fog whistle, then starts speed swimming away.
10.The villain blows a spooky fog whistle, then checks their golden compass.
11.The villain throws a coral trap, then starts speed swimming away.
12.The villain drops a heavy anchor, then blows a shark whistle.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Pearl of Coral Cove
Culprit: Coral Pearl (coral trap · golden compass · right handed · coral pink · sweet coconut)
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE A SPYGLASS ZOOM"What number has 9 tens and 0 ones? = 90 (T) · What number has 8 tens and 5 ones? = 85 (V) · What number has 6 tens and 9 ones? = 69 (L) · What number has 7 tens and 3 ones? = 73 (O) · What number has 5 tens and 0 ones? = 50 (Z) · What number has 3 tens and 3 ones? = 33 (I) · What number has 8 tens and 8 ones? = 88 (E) · What number has 8 tens and 3 ones? = 83 (D) · What number has 9 tens and 3 ones? = 93 (M) · What number has 8 tens and 1 one? = 81 (A) · What number has 5 tens and 6 ones? = 56 (S) · What number has 6 tens and 3 ones? = 63 (N) · What number has 6 tens and 8 ones? = 68 (G) · What number has 3 tens and 2 ones? = 32 (P) · What number has 3 tens and 5 ones? = 35 (U) · What number has 9 tens and 4 ones? = 94 (Y) · What number has 6 tens and 5 ones? = 65 (H)
- Clue 2 (Addition): "THE RIGHT HANDED THIEF WROTE A NOTE"67 + 28 = 95 (T) · 26 + 28 = 54 (E) · 15 + 9 = 24 (O) · 16 + 36 = 52 (H) · 54 + 32 = 86 (G) · 54 + 23 = 77 (A) · 22 + 43 = 65 (W) · 25 + 15 = 40 (F) · 28 + 42 = 70 (I) · 13 + 19 = 32 (D) · 37 + 47 = 84 (N) · 46 + 20 = 66 (R)
- Clue 3 (Subtraction): "THEY WERE DISTRACTED BY SWEET COCONUT"46 - 23 = 23 (T) · 62 - 22 = 40 (Y) · 70 - 15 = 55 (A) · 48 - 33 = 15 (H) · 94 - 26 = 68 (U) · 43 - 8 = 35 (B) · 109 - 22 = 87 (O) · 52 - 2 = 50 (W) · 53 - 14 = 39 (S) · 74 - 27 = 47 (E) · 63 - 9 = 54 (D) · 73 - 28 = 45 (I) · 47 - 13 = 34 (C) · 80 - 9 = 71 (N) · 17 - 1 = 16 (R)
- Clue 4 (Multiplication facts (1-12)): "A STRAND OF CORAL PINK HAIR WAS LEFT"1 × 4 = 4 (A) · 6 × 12 = 72 (E) · 1 × 7 = 7 (H) · 6 × 2 = 12 (F) · 7 × 8 = 56 (S) · 7 × 5 = 35 (W) · 12 × 2 = 24 (P) · 9 × 1 = 9 (C) · 1 × 1 = 1 (O) · 4 × 8 = 32 (T) · 2 × 7 = 14 (K) · 3 × 7 = 21 (N) · 5 × 5 = 25 (I) · 11 × 6 = 66 (R) · 11 × 8 = 88 (L) · 12 × 12 = 144 (D)
- Clue 5 (Division facts (1-12)): surviving statement (box 5) → Coral Pearl30 ÷ 5 = 6 · 33 ÷ 11 = 3 · 12 ÷ 1 = 12 · 88 ÷ 8 = 11 · 6 ÷ 6 = 1 · 24 ÷ 6 = 4 · 120 ÷ 12 = 10 · 54 ÷ 6 = 9 · 42 ÷ 6 = 7 · 16 ÷ 2 = 8 · 6 ÷ 3 = 2
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Pearl of Coral Cove — set in Coral Cove
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects