Grade 6Reading: grades 5-6MultiplicationMulti-step word problemsWord problemsFractions of a number
The Mystery of Serpent Ridge Ruins
A sneaky raid threw the Serpent Ridge expedition into chaos! Someone snuck into the central vault, disabled the temple defense grids, and ran off with precious ancient relics. Detective, examine the clues, solve the math mysteries, and unmask 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 | Gear Used | Stolen Relic | Dominant Hand | Hair Style | Defensive Trap |
|---|---|---|---|---|---|
| Carter Kane | Torch Launcher | Jade Key | Right-Handed | Curly Afro | Net Trap |
| Jason Grace | Glider Wings | Jade Key | Right-Handed | Short Crew Cut | Flashlight Beam |
| Thalia Grace | Torch Launcher | Ruby Medallion | Left-Handed | Short Crew Cut | Flashlight Beam |
| Percy Jackson | Grappling Hook | Ancient Map | Right-Handed | Braided Ponytail | Flashlight Beam |
| Sami Cruz | Smoke Bombs | Ruby Medallion | Right-Handed | Curly Afro | Net Trap |
| Sadie Kane | Torch Launcher | Ancient Map | Left-Handed | Curly Afro | Flashlight Beam |
| Nico di Angelo | Glider Wings | Jade Key | Left-Handed | Curly Afro | Sneezing Powder |
| Indiana Bones | Decodable Compass | Jade Key | Left-Handed | Curly Afro | Flashlight Beam |
| Rory Williams | Glider Wings | Golden Idol | Right-Handed | Curly Afro | Flashlight Beam |
| Luke Castellan | Glider Wings | Ancient Map | Right-Handed | Braided Ponytail | Flashlight Beam |
| Frank Zhang | Glider Wings | Ruby Medallion | Right-Handed | Short Crew Cut | Net Trap |
| Will Solace | Glider Wings | Ancient Map | Left-Handed | Curly Afro | Flashlight Beam |
| Hazel Levesque | Torch Launcher | Jade Key | Right-Handed | Braided Ponytail | Flashlight Beam |
| Maya Lin | Torch Launcher | Jeweled Dagger | Left-Handed | Curly Afro | Flashlight Beam |
| Leo Valdez | Decodable Compass | Jeweled Dagger | Right-Handed | Short Crew Cut | Net Trap |
| Lara Croft | Grappling Hook | Ancient Map | Left-Handed | Curly Afro | Flashlight Beam |
| Zoe Nightshade | Smoke Bombs | Jade Key | Left-Handed | Braided Ponytail | Net Trap |
| Calypso Moon | Grappling Hook | Ruby Medallion | Left-Handed | Short Crew Cut | Sneezing Powder |
| Alex Fierro | Glider Wings | Golden Idol | Left-Handed | Curly Afro | Sneezing Powder |
| Magnus Chase | Glider Wings | Golden Idol | Right-Handed | Braided Ponytail | Net Trap |
| Piper McLean | Grappling Hook | Golden Idol | Right-Handed | Braided Ponytail | Sneezing Powder |
Clue 1
Multiplication facts (1-12)
The camp was flipped upside down during the night raid. Help the supply crew count the remaining trail gear to decode 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
16
24
70
22
35
99
99
66
35
11
6
84
70
80
11
84
T
16
24
66
22
70
T
16
24
70
30
70
49
70
99
70
6
6
66
3
3
70
90
2 × 8 =T
10 × 3 =J
6 × 1 =D
9 × 11 =L
8 × 10 =S
9 × 10 =R
12 × 7 =O
12 × 2 =H
3 × 1 =G
11 × 1 =N
7 × 5 =I
7 × 7 =W
10 × 7 =E
11 × 2 =V
11 × 6 =A
0/15 letters found
Clue 2
Multi-step word problems
The trail split into three treacherous paths through the canyon. Solve these supply weight calculations to map out where the bandit fled.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
L
82
22
53
40
79
7
56
D
22
D
There were 195 scouting map in all. 1 Jungle Trek Crew used 31 scouting map each. The other 2 Jungle Trek Crew shared the rest equally. How many scouting map did each of the other Jungle Trek Crew get?L
Archaeologist filled 3 boxes with 3 trail canteen each, then found 31 more trail canteen. How many trail canteen are there in all?T
Archaeologist earned 8 climbing rope in each of 6 rounds, plus 12 bonus climbing rope. Then 7 climbing rope were lost. How many climbing rope are left?F
There were 428 scouting map in all. 36 scouting map were set aside. The rest were shared equally among 7 Jungle Trek Crew. How many scouting map did each get?N
There were 143 scouting map in all. 3 Jungle Trek Crew used 33 scouting map each. The other 2 Jungle Trek Crew shared the rest equally. How many scouting map did each of the other Jungle Trek Crew get?E
Archaeologist earned 5 brass compass in each of 6 rounds, plus 56 bonus brass compass. Then 7 brass compass were lost. How many brass compass are left?H
Archaeologist collected 5 expedition tent in the morning and 16 expedition tent in the afternoon, then split them equally among 3 Jungle Trek Crew. How many expedition tent did each get?A
0/7 letters found
Clue 3
Word problems
A carved stone wall blocks the secret passage. Multiply the ancient glyph rows to unlock the hidden mechanism.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
F
31
7
79
82
119
7
45
77
119
T
B
E
79
M
There were 48 trail canteen. 17 were used up. How many trail canteen are left?F
There were 106 trail canteen. 29 were used up. How many trail canteen are left?G
Archaeologist found 41 expedition tent yesterday and 78 more today. How many expedition tent in all?H
There were 68 brass compass. 23 were used up. How many brass compass are left?I
There were 108 scouting map. 29 were used up. How many scouting map are left?A
There were 99 brass compass. 17 were used up. How many brass compass are left?S
There were 29 brass compass. 22 were used up. How many brass compass are left?L
0/7 letters found
Clue 4
Fractions of a number
Our canteens are running low on fresh spring water. Calculate the remaining fractions of water supplies to keep moving forward.
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
25
39
34
8
31
23
19
T
25
37
23
19
14
6
31
19
36
35
24
30
37
36
23
39
30
22
36
1/3 of 75 =T
3/6 of 46 =O
2/10 of 185 =F
3/8 of 80 =A
3/4 of 8 =D
2/10 of 170 =E
2/3 of 21 =N
3/6 of 72 =R
3/4 of 52 =H
1/4 of 76 =U
2/8 of 124 =C
2/6 of 24 =S
2/10 of 110 =I
5/10 of 70 =L
3/4 of 32 =Y
0/15 letters found
Clue 5
Fractions of a number — the last clue
The stolen map fragment shows only a fraction of the jungle grid. Solve the fractional distances to pinpoint the bandit hideout.
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
1/5 of 5 = ?
1/5 of 50 = ?
1/2 of 22 = ?
2/6 of 21 = ?
2/6 of 24 = ?
1/4 of 16 = ?
1/8 of 72 = ?
2/4 of 4 = ?
4/8 of 10 = ?
2/6 of 9 = ?
4/5 of 15 = ?
Step 2 — cross out the sentence with each answer
1.The villain guided their path with a decodable compass, then grabbed the jade key.
2.The villain dropped a cloud of smoke bombs, then stole the ruby medallion.
3.The villain swung with a grappling hook, then took the jeweled dagger.
4.The villain swung with a grappling hook, then stole the ruby medallion.
5.The villain fired a path with a torch launcher, then grabbed the jade key.
6.The villain swung with a grappling hook, then swiped the ancient map.
7.The villain guided their path with a decodable compass, then stole the ruby medallion.
8.The villain guided their path with a decodable compass, then swiped the ancient map.
9.The villain fired a path with a torch launcher, then took the jeweled dagger.
10.The villain glided overhead on glider wings, then swiped the ancient map.
11.The villain fired a path with a torch launcher, then swiped the ancient map.
12.The villain fired a path with a torch launcher, then stole the ruby medallion.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of Serpent Ridge Ruins
Culprit: Lara Croft (Grappling Hook · Ancient Map · Left-Handed · Curly Afro · Flashlight Beam)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT HAVE THE JEWELED DAGGER"2 × 8 = 16 (T) · 10 × 3 = 30 (J) · 6 × 1 = 6 (D) · 9 × 11 = 99 (L) · 8 × 10 = 80 (S) · 9 × 10 = 90 (R) · 12 × 7 = 84 (O) · 12 × 2 = 24 (H) · 3 × 1 = 3 (G) · 11 × 1 = 11 (N) · 7 × 5 = 35 (I) · 7 × 7 = 49 (W) · 10 × 7 = 70 (E) · 11 × 2 = 22 (V) · 11 × 6 = 66 (A)
- Clue 2 (Multi-step word problems): "LEFT HANDED"There were 195 scouting map in all. 1 Jungle Trek Crew used 31 scouting map each. The other 2 Jungle Trek Crew shared the rest equally. How many scouting map did each of the other Jungle Trek Crew get? = 82 (L) · Archaeologist filled 3 boxes with 3 trail canteen each, then found 31 more trail canteen. How many trail canteen are there in all? = 40 (T) · Archaeologist earned 8 climbing rope in each of 6 rounds, plus 12 bonus climbing rope. Then 7 climbing rope were lost. How many climbing rope are left? = 53 (F) · There were 428 scouting map in all. 36 scouting map were set aside. The rest were shared equally among 7 Jungle Trek Crew. How many scouting map did each get? = 56 (N) · There were 143 scouting map in all. 3 Jungle Trek Crew used 33 scouting map each. The other 2 Jungle Trek Crew shared the rest equally. How many scouting map did each of the other Jungle Trek Crew get? = 22 (E) · Archaeologist earned 5 brass compass in each of 6 rounds, plus 56 bonus brass compass. Then 7 brass compass were lost. How many brass compass are left? = 79 (H) · Archaeologist collected 5 expedition tent in the morning and 16 expedition tent in the afternoon, then split them equally among 3 Jungle Trek Crew. How many expedition tent did each get? = 7 (A)
- Clue 3 (Word problems): "FLASHLIGHT BEAM"There were 48 trail canteen. 17 were used up. How many trail canteen are left? = 31 (F) · There were 106 trail canteen. 29 were used up. How many trail canteen are left? = 77 (G) · Archaeologist found 41 expedition tent yesterday and 78 more today. How many expedition tent in all? = 119 (H) · There were 68 brass compass. 23 were used up. How many brass compass are left? = 45 (I) · There were 108 scouting map. 29 were used up. How many scouting map are left? = 79 (A) · There were 99 brass compass. 17 were used up. How many brass compass are left? = 82 (S) · There were 29 brass compass. 22 were used up. How many brass compass are left? = 7 (L)
- Clue 4 (Fractions of a number): "THE SCOUT FOUND CURLY AFRO HAIR"1/3 of 75 = 25 (T) · 3/6 of 46 = 23 (O) · 2/10 of 185 = 37 (F) · 3/8 of 80 = 30 (A) · 3/4 of 8 = 6 (D) · 2/10 of 170 = 34 (E) · 2/3 of 21 = 14 (N) · 3/6 of 72 = 36 (R) · 3/4 of 52 = 39 (H) · 1/4 of 76 = 19 (U) · 2/8 of 124 = 31 (C) · 2/6 of 24 = 8 (S) · 2/10 of 110 = 22 (I) · 5/10 of 70 = 35 (L) · 3/4 of 32 = 24 (Y)
- Clue 5 (Fractions of a number): surviving statement (box 6) → Lara Croft1/5 of 5 = 1 · 1/5 of 50 = 10 · 1/2 of 22 = 11 · 2/6 of 21 = 7 · 2/6 of 24 = 8 · 1/4 of 16 = 4 · 1/8 of 72 = 9 · 2/4 of 4 = 2 · 4/8 of 10 = 5 · 2/6 of 9 = 3 · 4/5 of 15 = 12
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Multiplication, Multi-step word problems, Word problems, Fractions of a number
- Reading level
- grades 5-6
- Theme
- The Mystery of Serpent Ridge Ruins — set in Serpent Ridge Jungle Temple
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects