Grade 5Reading: grades 5-6Skip countingMulti-step word problemsWord problemsMultiplicationDivision
The Ruins of the Jade Beetle
A rogue explorer has snatched the legendary Jade Beetle from the Echoing Ruins! The head curator needs your help to decode the ancient trail, avoid the temple traps, and find the culprit before they escape the jungle.
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 | Explorer Gear | Ancient Charm | Writing Habit | Headwear | Phobia |
|---|---|---|---|---|---|
| Professor Oak | machete | sun medallion | writes notes with left hand | green safari hat | afraid of water |
| Lara | torch | moon pendant | writes notes with left hand | brown fedora | afraid of water |
| Wyatt | compass | earth stone | writes notes with right hand | green safari hat | afraid of spiders |
| Marco Polo | compass | sun medallion | writes notes with right hand | brown fedora | afraid of spiders |
| Chloe | torch | sun medallion | writes notes with left hand | green safari hat | afraid of spiders |
| Nathan | torch | moon pendant | writes notes with right hand | yellow helmet | afraid of water |
| Dr Jones | compass | sky relic | writes notes with right hand | yellow helmet | afraid of water |
| Sir Reginald | binoculars | sky relic | writes notes with right hand | yellow helmet | afraid of heights |
| Annie Oakley | grappling hook | sky relic | writes notes with right hand | yellow helmet | afraid of water |
| Blackbeard | compass | moon pendant | writes notes with left hand | green safari hat | afraid of spiders |
| Nellie Bly | binoculars | moon pendant | writes notes with right hand | brown fedora | afraid of water |
| Doc Holliday | grappling hook | moon pendant | writes notes with right hand | brown fedora | afraid of spiders |
| Sully | machete | star amulet | writes notes with left hand | brown fedora | afraid of heights |
| Calico Jack | grappling hook | moon pendant | writes notes with right hand | green safari hat | afraid of water |
| Amelia | machete | sky relic | writes notes with right hand | green safari hat | afraid of spiders |
| Sacagawea | compass | earth stone | writes notes with right hand | green safari hat | afraid of water |
| Wild Bill | compass | star amulet | writes notes with left hand | green safari hat | afraid of water |
| Charles | torch | star amulet | writes notes with right hand | green safari hat | afraid of spiders |
| Percy Fawcett | grappling hook | sun medallion | writes notes with right hand | green safari hat | afraid of spiders |
| Henry Morgan | machete | sun medallion | writes notes with right hand | green safari hat | afraid of spiders |
| Captain Kidd | compass | sun medallion | writes notes with right hand | yellow helmet | afraid of water |
Clue 1
Skip counting
You find a muddy backpack left behind by the suspect. To count the spare supplies inside, you need to solve this inventory problem.
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
100
35
42
140
24
90
90
16
24
60
28
50
42
27
60
50
T
100
35
16
140
42
T
100
35
42
27
45
25
65
42
90
24
20
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75R
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30C
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55K
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35Y
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160V
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110L
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32D
0/15 letters found
Clue 2
Multi-step word problems
A heavy stone gate blocks the path. You must calculate both the weight of your gear and the counterweight stones to lift the gate.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
W
16
41
65
79
21
42
29
O
79
21
42
W
16
65
79
H
41
65
G
H
79
H
A
29
D
Scout earned 5 map in each of 4 rounds, plus 2 bonus map. Then 6 map were lost. How many map are left?W
There were 100 map in all. 16 map were set aside. The rest were shared equally among 4 Junior Explorers. How many map did each get?E
Scout filled 4 boxes with 2 shovel each, then found 57 more shovel. How many shovel are there in all?I
Scout collected 11 shovel in the morning and 47 shovel in the afternoon, then split them equally among 2 Junior Explorers. How many shovel did each get?N
Scout earned 4 map in each of 5 rounds, plus 69 bonus map. Then 10 map were lost. How many map are left?T
Scout earned 8 artifact in each of 4 rounds, plus 24 bonus artifact. Then 15 artifact were lost. How many artifact are left?R
Scout collected 118 shovel in the morning and 50 shovel in the afternoon, then split them equally among 4 Junior Explorers. How many shovel did each get?S
0/7 letters found
Clue 3
Word problems
To safely cross the ancient pressure-plate floor, follow the pattern on the stones by skip counting the carved numbers.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
A
98
34
66
A
98
51
70
56
34
72
P
51
70
E
66
72
There were 123 canteen. 25 were used up. How many canteen are left?A
Scout found 2 shovel yesterday and 49 more today. How many shovel in all?I
There were 87 map. 17 were used up. How many map are left?D
Scout lined up 11 rows of 6 shovel. How many shovel in all?R
Scout lined up 8 rows of 7 canteen. How many canteen in all?O
Scout found 29 canteen yesterday and 5 more today. How many canteen in all?F
Scout lined up 8 rows of 9 shovel. How many shovel in all?S
0/7 letters found
Clue 4
Multiplication facts (1-12)
You reach a wall of golden beetle statues arranged in neat rows. Multiply the rows and columns to find the secret release switch.
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
36
84
2
15
14
80
24
35
12
10
72
35
44
2
72
15
1
35
22
72
84
84
80
12
35
2
35
72
50
4
35
10
12 × 3 =W
10 × 8 =N
11 × 2 =G
1 × 1 =M
5 × 10 =I
3 × 4 =S
2 × 12 =D
2 × 7 =U
10 × 1 =T
4 × 11 =P
7 × 5 =A
12 × 7 =E
3 × 5 =O
4 × 1 =H
12 × 6 =R
1 × 2 =F
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The jungle path splits into several directions. Divide the total map distance by your team size to figure out how far each scout should explore.
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
36 ÷ 6 = ?
72 ÷ 6 = ?
9 ÷ 9 = ?
88 ÷ 11 = ?
36 ÷ 9 = ?
55 ÷ 11 = ?
36 ÷ 4 = ?
60 ÷ 6 = ?
3 ÷ 1 = ?
6 ÷ 3 = ?
22 ÷ 2 = ?
Step 2 — cross out the sentence with each answer
1.The villain cut through the thick vines with a machete, then activated the hidden door with the sun medallion.
2.The villain checked the trail direction with a compass, then disarmed the dart trap with the star amulet.
3.The villain swung across the pit using a grappling hook, then unlocked the secret chest with the moon pendant.
4.The villain cut through the thick vines with a machete, then unlocked the secret chest with the moon pendant.
5.The villain spotted the distant temple with binoculars, then disarmed the dart trap with the star amulet.
6.The villain checked the trail direction with a compass, then calmed the stone guardian with the earth stone.
7.The villain lit up the dark hallway with a torch, then disarmed the dart trap with the star amulet.
8.The villain cut through the thick vines with a machete, then bypassed the wind barrier with the sky relic.
9.The villain cut through the thick vines with a machete, then calmed the stone guardian with the earth stone.
10.The villain lit up the dark hallway with a torch, then activated the hidden door with the sun medallion.
11.The villain lit up the dark hallway with a torch, then bypassed the wind barrier with the sky relic.
12.The villain swung across the pit using a grappling hook, then activated the hidden door with the sun medallion.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Ruins of the Jade Beetle
Culprit: Charles (torch · star amulet · writes notes with right hand · green safari hat · afraid of spiders)
- Clue 1 (Skip counting): "THE VILLAIN DOES NOT HAVE THE SKY RELIC"Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (R) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (C) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (K) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (Y) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (N) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (V) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (L) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (D)
- Clue 2 (Multi-step word problems): "WRITES NOTES WITH RIGHT HAND"Scout earned 5 map in each of 4 rounds, plus 2 bonus map. Then 6 map were lost. How many map are left? = 16 (W) · There were 100 map in all. 16 map were set aside. The rest were shared equally among 4 Junior Explorers. How many map did each get? = 21 (E) · Scout filled 4 boxes with 2 shovel each, then found 57 more shovel. How many shovel are there in all? = 65 (I) · Scout collected 11 shovel in the morning and 47 shovel in the afternoon, then split them equally among 2 Junior Explorers. How many shovel did each get? = 29 (N) · Scout earned 4 map in each of 5 rounds, plus 69 bonus map. Then 10 map were lost. How many map are left? = 79 (T) · Scout earned 8 artifact in each of 4 rounds, plus 24 bonus artifact. Then 15 artifact were lost. How many artifact are left? = 41 (R) · Scout collected 118 shovel in the morning and 50 shovel in the afternoon, then split them equally among 4 Junior Explorers. How many shovel did each get? = 42 (S)
- Clue 3 (Word problems): "AFRAID OF SPIDERS"There were 123 canteen. 25 were used up. How many canteen are left? = 98 (A) · Scout found 2 shovel yesterday and 49 more today. How many shovel in all? = 51 (I) · There were 87 map. 17 were used up. How many map are left? = 70 (D) · Scout lined up 11 rows of 6 shovel. How many shovel in all? = 66 (R) · Scout lined up 8 rows of 7 canteen. How many canteen in all? = 56 (O) · Scout found 29 canteen yesterday and 5 more today. How many canteen in all? = 34 (F) · Scout lined up 8 rows of 9 shovel. How many shovel in all? = 72 (S)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND A STRAP FROM A GREEN SAFARI HAT"12 × 3 = 36 (W) · 10 × 8 = 80 (N) · 11 × 2 = 22 (G) · 1 × 1 = 1 (M) · 5 × 10 = 50 (I) · 3 × 4 = 12 (S) · 2 × 12 = 24 (D) · 2 × 7 = 14 (U) · 10 × 1 = 10 (T) · 4 × 11 = 44 (P) · 7 × 5 = 35 (A) · 12 × 7 = 84 (E) · 3 × 5 = 15 (O) · 4 × 1 = 4 (H) · 12 × 6 = 72 (R) · 1 × 2 = 2 (F)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Charles36 ÷ 6 = 6 · 72 ÷ 6 = 12 · 9 ÷ 9 = 1 · 88 ÷ 11 = 8 · 36 ÷ 9 = 4 · 55 ÷ 11 = 5 · 36 ÷ 4 = 9 · 60 ÷ 6 = 10 · 3 ÷ 1 = 3 · 6 ÷ 3 = 2 · 22 ÷ 2 = 11
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Skip counting, Multi-step word problems, Word problems, Multiplication, Division
- Reading level
- grades 5-6
- Theme
- The Ruins of the Jade Beetle — set in The Deep Canopy Jungle
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects