🔎 VikingsGrade 4Reading: grades 3-4MultiplicationWord problemsMulti-step word problemsSkip countingDivision
The Case of the Missing Sunstone
A sneaky rogue raider has snatched the Sacred Sunstone from the Great Hall! Without its glowing light, the longships cannot navigate the thick northern fog. Chief Halvar needs your help to find the culprit and save the fleet!
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 | Viking Action | Viking Gear | Observable Clue | Hair Style | Secret Fear |
|---|---|---|---|---|---|
| Svein | carving magical wooden runes | wearing a silver wolf pendant | holding a torch in the right hand | braided bright red beard | sneezes around fluffy seal pups |
| Harald | blowing a loud bronze horn | wearing a silver wolf pendant | holding a torch in the right hand | braided bright red beard | distracted by hot mutton stew |
| Gisla | taming a wild snowy owl | wearing a shiny horned helmet | holding a torch in the right hand | braided bright red beard | distracted by hot mutton stew |
| Rollo | blowing a loud bronze horn | wearing a silver wolf pendant | holding a torch in the right hand | dark black twin braids | distracted by hot mutton stew |
| Freydis | swinging a heavy iron axe | carrying a heavy leather shield | holding a torch in the right hand | long messy yellow hair | distracted by hot mutton stew |
| Ivar | blowing a loud bronze horn | carrying a heavy leather shield | holding a torch in the left hand | braided bright red beard | distracted by hot mutton stew |
| Floki | blowing a loud bronze horn | wearing thick polar bear boots | holding a torch in the left hand | long messy yellow hair | scared of tickly green seaweed |
| Knut | blowing a loud bronze horn | carrying a map of the high seas | holding a torch in the left hand | braided bright red beard | sneezes around fluffy seal pups |
| Ubba | taming a wild snowy owl | wearing a silver wolf pendant | holding a torch in the right hand | long messy yellow hair | distracted by hot mutton stew |
| Helga | taming a wild snowy owl | wearing thick polar bear boots | holding a torch in the left hand | braided bright red beard | distracted by hot mutton stew |
| Erik | rowing a speedy wooden kayak | carrying a heavy leather shield | holding a torch in the right hand | long messy yellow hair | scared of tickly green seaweed |
| Aslaug | taming a wild snowy owl | wearing thick polar bear boots | holding a torch in the right hand | long messy yellow hair | scared of tickly green seaweed |
| Bjorn | blowing a loud bronze horn | wearing thick polar bear boots | holding a torch in the right hand | braided bright red beard | distracted by hot mutton stew |
| Sigrid | carving magical wooden runes | wearing thick polar bear boots | holding a torch in the right hand | dark black twin braids | sneezes around fluffy seal pups |
| Torstein | rowing a speedy wooden kayak | wearing a silver wolf pendant | holding a torch in the right hand | long messy yellow hair | distracted by hot mutton stew |
| Astrid | swinging a heavy iron axe | wearing a silver wolf pendant | holding a torch in the right hand | braided bright red beard | distracted by hot mutton stew |
| Ragnar | carving magical wooden runes | wearing a silver wolf pendant | holding a torch in the left hand | braided bright red beard | distracted by hot mutton stew |
| Arvid | taming a wild snowy owl | wearing a silver wolf pendant | holding a torch in the right hand | braided bright red beard | distracted by hot mutton stew |
| Hilda | taming a wild snowy owl | wearing a shiny horned helmet | holding a torch in the right hand | dark black twin braids | distracted by hot mutton stew |
| Gunnar | carving magical wooden runes | wearing a shiny horned helmet | holding a torch in the right hand | long messy yellow hair | scared of tickly green seaweed |
| Lagertha | blowing a loud bronze horn | carrying a heavy leather shield | holding a torch in the right hand | dark black twin braids | scared of tickly green seaweed |
Clue 1
Multiplication facts (1-12)
We found the culprit's footprints in the muddy garden! The prints are stamped in neat rows. Multiply the rows of muddy prints to find 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
22
36
24
96
25
11
11
54
25
35
3
20
24
70
35
20
T
22
77
24
54
45
54
36
20
45
35
24
3
36
24
11
88
24
T
22
11 × 2 =T
3 × 12 =H
5 × 5 =I
1 × 11 =L
11 × 7 =W
8 × 12 =V
3 × 1 =D
9 × 5 =R
2 × 12 =E
10 × 7 =S
6 × 9 =A
11 × 8 =M
7 × 5 =N
2 × 10 =O
0/14 letters found
Clue 2
Word problems
A witness saw someone running past the longships at sunrise. Solve this math puzzle about the oars on the deck to unlock what they saw.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
H
80
21
6
56
58
72
62
A
T
21
R
C
H
80
58
72
T
H
80
E
R
58
62
H
80
T
H
80
A
72
56
Viking scout lined up 10 rows of 8 salted herring. How many salted herring in all?H
There were 40 silver coin. 19 were used up. How many silver coin are left?O
Viking scout found 4 iron helmet yesterday and 2 more today. How many iron helmet in all?L
Viking scout found 7 runic tablet yesterday and 51 more today. How many runic tablet in all?I
Viking scout lined up 8 rows of 9 iron helmet. How many iron helmet in all?N
There were 83 silver coin. 21 were used up. How many silver coin are left?G
Viking scout lined up 7 rows of 8 wooden shield. How many wooden shield in all?D
0/7 letters found
Clue 3
Multi-step word problems
The guards are counting the iron shields left in the armory. Some shields were taken and some were returned. Solve the steps to get the final count!
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
D
83
65
57
80
59
27
17
80
E
D
83
B
Y
H
O
80
M
U
80
80
O
N
57
80
E
W
Viking scout earned 8 runic tablet in each of 4 rounds, plus 64 bonus runic tablet. Then 13 runic tablet were lost. How many runic tablet are left?D
Viking scout collected 445 runic tablet in the morning and 35 runic tablet in the afternoon, then split them equally among 6 Great Hall Clan. How many runic tablet did each get?T
There were 208 runic tablet in all. 31 runic tablet were set aside. The rest were shared equally among 3 Great Hall Clan. How many runic tablet did each get?R
There were 92 silver coin in all. 1 Great Hall Clan used 7 silver coin each. The other 5 Great Hall Clan shared the rest equally. How many silver coin did each of the other Great Hall Clan get?C
Viking scout collected 131 runic tablet in the morning and 64 runic tablet in the afternoon, then split them equally among 3 Great Hall Clan. How many runic tablet did each get?I
There were 181 wooden shield in all. 1 Great Hall Clan used 19 wooden shield each. The other 6 Great Hall Clan shared the rest equally. How many wooden shield did each of the other Great Hall Clan get?A
Viking scout earned 6 silver coin in each of 3 rounds, plus 53 bonus silver coin. Then 14 silver coin were lost. How many silver coin are left?S
0/7 letters found
Clue 4
Skip counting
We are tracking the raider across the stone steps. They jumped over steps in a steady pattern. Skip count the numbers to see where they landed.
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
70
80
22
140
18
130
36
42
80
36
21
65
110
42
9
12
110
130
30
110
130
30
28
140
28
21
80
40
80
130
9
21
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160O
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100E
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15C
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18L
Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60B
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130I
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150N
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36G
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26F
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24U
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42D
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The kitchen helpers are sharing hot loaves of flatbread among the search parties. Divide the food evenly to get the final clue from the cook!
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
66 ÷ 11 = ?
2 ÷ 2 = ?
6 ÷ 2 = ?
27 ÷ 3 = ?
60 ÷ 6 = ?
40 ÷ 10 = ?
70 ÷ 10 = ?
16 ÷ 2 = ?
15 ÷ 3 = ?
99 ÷ 9 = ?
8 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain blows a loud bronze horn to cause a distraction, then scuffs the floor with thick polar bear boots.
2.The villain calls a wild snowy owl to snatch the prize, then blocks the path with a heavy leather shield.
3.The villain blows a loud bronze horn to cause a distraction, then drops a silver wolf pendant in the mud.
4.The villain blows a loud bronze horn to cause a distraction, then loses a shiny horned helmet in the rush.
5.The villain swings a heavy iron axe to break the lock, then scuffs the floor with thick polar bear boots.
6.The villain calls a wild snowy owl to snatch the prize, then drops a silver wolf pendant in the mud.
7.The villain swings a heavy iron axe to break the lock, then loses a shiny horned helmet in the rush.
8.The villain rows a speedy wooden kayak to make a getaway, then drops a silver wolf pendant in the mud.
9.The villain blows a loud bronze horn to cause a distraction, then blocks the path with a heavy leather shield.
10.The villain rows a speedy wooden kayak to make a getaway, then scuffs the floor with thick polar bear boots.
11.The villain calls a wild snowy owl to snatch the prize, then scuffs the floor with thick polar bear boots.
12.The villain swings a heavy iron axe to break the lock, then drops a silver wolf pendant in the mud.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Sunstone
Culprit: Astrid (swinging a heavy iron axe · wearing a silver wolf pendant · holding a torch in the right hand · braided bright red beard · distracted by hot mutton stew)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT WEAR A HORNED HELMET"11 × 2 = 22 (T) · 3 × 12 = 36 (H) · 5 × 5 = 25 (I) · 1 × 11 = 11 (L) · 11 × 7 = 77 (W) · 8 × 12 = 96 (V) · 3 × 1 = 3 (D) · 9 × 5 = 45 (R) · 2 × 12 = 24 (E) · 10 × 7 = 70 (S) · 6 × 9 = 54 (A) · 11 × 8 = 88 (M) · 7 × 5 = 35 (N) · 2 × 10 = 20 (O)
- Clue 2 (Word problems): "HOLDING A TORCH IN THE RIGHT HAND"Viking scout lined up 10 rows of 8 salted herring. How many salted herring in all? = 80 (H) · There were 40 silver coin. 19 were used up. How many silver coin are left? = 21 (O) · Viking scout found 4 iron helmet yesterday and 2 more today. How many iron helmet in all? = 6 (L) · Viking scout found 7 runic tablet yesterday and 51 more today. How many runic tablet in all? = 58 (I) · Viking scout lined up 8 rows of 9 iron helmet. How many iron helmet in all? = 72 (N) · There were 83 silver coin. 21 were used up. How many silver coin are left? = 62 (G) · Viking scout lined up 7 rows of 8 wooden shield. How many wooden shield in all? = 56 (D)
- Clue 3 (Multi-step word problems): "DISTRACTED BY HOT MUTTON STEW"Viking scout earned 8 runic tablet in each of 4 rounds, plus 64 bonus runic tablet. Then 13 runic tablet were lost. How many runic tablet are left? = 83 (D) · Viking scout collected 445 runic tablet in the morning and 35 runic tablet in the afternoon, then split them equally among 6 Great Hall Clan. How many runic tablet did each get? = 80 (T) · There were 208 runic tablet in all. 31 runic tablet were set aside. The rest were shared equally among 3 Great Hall Clan. How many runic tablet did each get? = 59 (R) · There were 92 silver coin in all. 1 Great Hall Clan used 7 silver coin each. The other 5 Great Hall Clan shared the rest equally. How many silver coin did each of the other Great Hall Clan get? = 17 (C) · Viking scout collected 131 runic tablet in the morning and 64 runic tablet in the afternoon, then split them equally among 3 Great Hall Clan. How many runic tablet did each get? = 65 (I) · There were 181 wooden shield in all. 1 Great Hall Clan used 19 wooden shield each. The other 6 Great Hall Clan shared the rest equally. How many wooden shield did each of the other Great Hall Clan get? = 27 (A) · Viking scout earned 6 silver coin in each of 3 rounds, plus 53 bonus silver coin. Then 14 silver coin were lost. How many silver coin are left? = 57 (S)
- Clue 4 (Skip counting): "WE FOUND RED HAIR CLINGING TO THE BENCH"Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (W) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (O) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (E) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (C) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60 = 40 (B) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (I) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (N) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36 = 30 (G) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (F) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (A) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24 = 18 (U) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (D)
- Clue 5 (Division facts (1-12)): surviving statement (box 12) → Astrid66 ÷ 11 = 6 · 2 ÷ 2 = 1 · 6 ÷ 2 = 3 · 27 ÷ 3 = 9 · 60 ÷ 6 = 10 · 40 ÷ 10 = 4 · 70 ÷ 10 = 7 · 16 ÷ 2 = 8 · 15 ÷ 3 = 5 · 99 ÷ 9 = 11 · 8 ÷ 4 = 2
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Multiplication, Word problems, Multi-step word problems, Skip counting, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Sunstone — set in Stormhaven Bay, a foggy Viking village on the edge of the sea
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects