🏴☠️ PiratesGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Pirate Island Mystery
Oh no! A sneaky pirate took the golden telescope from the lighthouse keeper. We must look for clues on the beach to find the thief!
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 | pirate tool | pet friend | hand used | hat color | fear |
|---|---|---|---|---|---|
| Salty Sam | iron compass | green parrot | left handed | blue scarf | scared of spiders |
| Captain Charles | wooden peg | grey rat | left handed | black tricorn | scared of frogs |
| Captain Kidd | map scroll | grey rat | right handed | red bandanna | scared of frogs |
| Blackbeard | shiny hook | green parrot | right handed | red bandanna | scared of frogs |
| Jolly Roger | wooden peg | little monkey | right handed | black tricorn | scared of frogs |
| Anne Bonny | wooden peg | green parrot | right handed | red bandanna | scared of frogs |
| Calico Jack | map scroll | sleepy cat | left handed | black tricorn | scared of frogs |
| Woodes Rogers | shiny hook | sleepy cat | right handed | black tricorn | scared of crabs |
| Pegleg Pete | iron compass | green parrot | right handed | blue scarf | scared of frogs |
| Redbeard | brass spyglass | white gull | right handed | red bandanna | scared of frogs |
| Sadie Goat | map scroll | green parrot | right handed | blue scarf | scared of crabs |
| Mary Read | shiny hook | white gull | left handed | blue scarf | scared of crabs |
| Captain Hook | map scroll | white gull | left handed | blue scarf | scared of spiders |
| Stede Bonnet | shiny hook | white gull | left handed | red bandanna | scared of frogs |
| Grace O Malley | iron compass | little monkey | right handed | red bandanna | scared of spiders |
| Captain Flint | brass spyglass | little monkey | right handed | black tricorn | scared of crabs |
| Billy Bones | shiny hook | sleepy cat | right handed | black tricorn | scared of frogs |
| Barnaby Blue | iron compass | green parrot | right handed | red bandanna | scared of crabs |
| Henry Morgan | brass spyglass | grey rat | left handed | red bandanna | scared of crabs |
| Long John | brass spyglass | little monkey | right handed | red bandanna | scared of frogs |
| Edward Low | map scroll | grey rat | right handed | blue scarf | scared of frogs |
Clue 1
Addition
We need to count the pirate flags on the ship. Let us add the flags on the front and the flags on the back.
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
16
9
17
12
5
17
7
11
6
10
2
14
7
T
16
17
20
4
17
12
5
4
T
16
9
7
3
17
7
19
14
17
6
14
7
T
16
9 + 7 =T
2 + 2 =O
1 + 4 =N
1 + 2 =V
12 + 7 =G
5 + 6 =K
7 + 10 =E
6 + 6 =S
5 + 9 =R
6 + 3 =H
3 + 7 =P
12 + 8 =D
5 + 1 =Y
4 + 3 =A
1 + 1 =I
0/15 letters found
Clue 2
Subtraction
The pirates ate some of their sweet coconuts. Subtract the eaten food to see how many coconuts are left.
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
11
4
17
13
5
16
6
T
11
17
4
17
18
12
T
11
4
17
2
6
13
5
3
T
11
4
17
5
16
16
5
9
4
T
11
4
6
3
12
15 - 4 =T
10 - 6 =H
14 - 9 =I
8 - 2 =A
19 - 2 =E
17 - 8 =G
18 - 5 =P
17 - 1 =R
20 - 2 =L
3 - 1 =M
11 - 8 =N
15 - 3 =D
0/12 letters found
Clue 3
Skip counting
Let us count the gold coins in the treasure chest. We can count them by fives to find the total fast.
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
30
140
9
55
55
15
39
50
12
12
70
15
140
120
9
50
140
27
8
A
30
9
55
65
6
39
55
6
39
70
55
120
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140F
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15R
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10T
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80I
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18P
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160G
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33S
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12C
0/14 letters found
Clue 4
Place value
Look at the shiny pearl boxes. Each big box has ten pearls and there are some loose pearls left over.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
35
36
67
51
98
93
50
99
92
36
50
97
99
93
50
99
93
93
99
99
17
17
68
36
50
51
55
64
What number has 3 tens and 5 ones?W
What number has 9 tens and 7 ones?B
What number has 5 tens and 1 one?O
What number has 9 tens and 8 ones?U
What number has 9 tens and 9 ones?A
What number has 1 ten and 7 ones?T
What number has 6 tens and 4 ones?K
What number has 6 tens and 8 ones?H
What number has 9 tens and 3 ones?N
What number has 5 tens and 5 ones?C
What number has 3 tens and 6 ones?E
What number has 5 tens and 0 ones?D
What number has 9 tens and 2 ones?R
What number has 6 tens and 7 ones?F
0/14 letters found
Clue 5
Missing addends — the last clue
We need ten keys to open the gate. We have some keys already. How many more keys do we need to find?
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
6 + ___ = 13
9 + ___ = 18
5 + ___ = 11
2 + ___ = 5
5 + ___ = 13
2 + ___ = 7
2 + ___ = 3
5 + ___ = 16
4 + ___ = 8
9 + ___ = 19
8 + ___ = 10
Step 2 — cross out the sentence with each answer
1.The villain tapped a wooden peg, then chased a grey rat.
2.The villain checked an iron compass, then pet a little monkey.
3.The villain rolled up a map scroll, then pet a little monkey.
4.The villain rolled up a map scroll, then called a white gull.
5.The villain checked an iron compass, then fed a green parrot.
6.The villain tapped a wooden peg, then fed a green parrot.
7.The villain swung a shiny hook, then fed a green parrot.
8.The villain peered through a brass spyglass, then fed a green parrot.
9.The villain peered through a brass spyglass, then called a white gull.
10.The villain peered through a brass spyglass, then chased a grey rat.
11.The villain swung a shiny hook, then chased a grey rat.
12.The villain peered through a brass spyglass, then pet a little monkey.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Pirate Island Mystery
Culprit: Long John (brass spyglass · little monkey · right handed · red bandanna · scared of frogs)
- Clue 1 (Addition): "THE SNEAKY PIRATE DOES NOT HAVE A GREY RAT"9 + 7 = 16 (T) · 2 + 2 = 4 (O) · 1 + 4 = 5 (N) · 1 + 2 = 3 (V) · 12 + 7 = 19 (G) · 5 + 6 = 11 (K) · 7 + 10 = 17 (E) · 6 + 6 = 12 (S) · 5 + 9 = 14 (R) · 6 + 3 = 9 (H) · 3 + 7 = 10 (P) · 12 + 8 = 20 (D) · 5 + 1 = 6 (Y) · 4 + 3 = 7 (A) · 1 + 1 = 2 (I)
- Clue 2 (Subtraction): "THE PIRATE HELD THE MAP IN THEIR RIGHT HAND"15 - 4 = 11 (T) · 10 - 6 = 4 (H) · 14 - 9 = 5 (I) · 8 - 2 = 6 (A) · 19 - 2 = 17 (E) · 17 - 8 = 9 (G) · 18 - 5 = 13 (P) · 17 - 1 = 16 (R) · 20 - 2 = 18 (L) · 3 - 1 = 2 (M) · 11 - 8 = 3 (N) · 15 - 3 = 12 (D)
- Clue 3 (Skip counting): "A GREEN HOPPING FROG SCARED THE THIEF"Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36 = 30 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (F) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (R) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (T) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (D) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21 = 15 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (I) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (P) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (O) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (G) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (C)
- Clue 4 (Place value): "WE FOUND A RED BANDANNA AT THE DOCK"What number has 3 tens and 5 ones? = 35 (W) · What number has 9 tens and 7 ones? = 97 (B) · What number has 5 tens and 1 one? = 51 (O) · What number has 9 tens and 8 ones? = 98 (U) · What number has 9 tens and 9 ones? = 99 (A) · What number has 1 ten and 7 ones? = 17 (T) · What number has 6 tens and 4 ones? = 64 (K) · What number has 6 tens and 8 ones? = 68 (H) · What number has 9 tens and 3 ones? = 93 (N) · What number has 5 tens and 5 ones? = 55 (C) · What number has 3 tens and 6 ones? = 36 (E) · What number has 5 tens and 0 ones? = 50 (D) · What number has 9 tens and 2 ones? = 92 (R) · What number has 6 tens and 7 ones? = 67 (F)
- Clue 5 (Missing addends): surviving statement (box 12) → Long John6 + ___ = 13 = 7 · 9 + ___ = 18 = 9 · 5 + ___ = 11 = 6 · 2 + ___ = 5 = 3 · 5 + ___ = 13 = 8 · 2 + ___ = 7 = 5 · 2 + ___ = 3 = 1 · 5 + ___ = 16 = 11 · 4 + ___ = 8 = 4 · 9 + ___ = 19 = 10 · 8 + ___ = 10 = 2
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Addition, Subtraction, Skip counting, Place value, Missing addends
- Reading level
- grades 1-2
- Theme
- The Pirate Island Mystery — set in Coconut Island
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects