Grade 6Reading: grades 5-6MultiplicationWord problemsPercentagesExponentsDivision
The Cloud Citadel Heist
During the annual Sky Festival, someone snuck into the high observatory and stole the Golden Compass! The High Navigator needs your help to examine the evidence and catch the culprit.
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 | Primary Gear | Secondary Gear | Dominant Hand | Headgear | Vulnerability |
|---|---|---|---|---|---|
| Ranger Ivy | Wind Glider | Flash Powder | Left Handed | Neon Blue Wig | Loud Noise |
| Captain Vance | Force Shield | Grapple Hook | Left Handed | Crimson Helmet | Loud Noise |
| Navigator Zoe | Pulse Cannon | Smoke Bomb | Right Handed | Crimson Helmet | Bright Light |
| Captain Nina | Pulse Cannon | Grapple Hook | Left Handed | Neon Blue Wig | Loud Noise |
| Tracker Chloe | Gravity Boots | Smoke Bomb | Left Handed | Silver Goggles | Cold Air |
| Scout Finn | Pulse Cannon | Flash Powder | Right Handed | Neon Blue Wig | Bright Light |
| Scout Maya | Gravity Boots | Smoke Bomb | Left Handed | Neon Blue Wig | Loud Noise |
| Pilot Ruby | Wind Glider | Smoke Bomb | Right Handed | Neon Blue Wig | Loud Noise |
| Commander Cole | Force Shield | Decoy Drone | Left Handed | Neon Blue Wig | Loud Noise |
| Specialist Nora | Force Shield | Grapple Hook | Right Handed | Silver Goggles | Bright Light |
| Commander Kai | Pulse Cannon | Grapple Hook | Right Handed | Crimson Helmet | Bright Light |
| Operator Dan | Gravity Boots | Grapple Hook | Right Handed | Neon Blue Wig | Loud Noise |
| Engineer Eli | Gravity Boots | EMP Grenade | Left Handed | Neon Blue Wig | Bright Light |
| Engineer Ella | Gravity Boots | Decoy Drone | Left Handed | Silver Goggles | Loud Noise |
| Agent Tess | Force Shield | Flash Powder | Left Handed | Neon Blue Wig | Cold Air |
| Officer Ava | Gravity Boots | Decoy Drone | Left Handed | Neon Blue Wig | Bright Light |
| Officer Sam | Force Shield | Flash Powder | Left Handed | Crimson Helmet | Cold Air |
| Mechanic Ben | Sonic Whistle | Grapple Hook | Left Handed | Crimson Helmet | Bright Light |
| Explorer Rex | Force Shield | Decoy Drone | Left Handed | Neon Blue Wig | Bright Light |
| Ranger Owen | Pulse Cannon | Smoke Bomb | Left Handed | Neon Blue Wig | Loud Noise |
| Agent Jax | Sonic Whistle | EMP Grenade | Left Handed | Silver Goggles | Cold Air |
Clue 1
Multiplication facts (1-12)
You search the dock manager's ledger, where airship cargo supplies are tracked in equal rows and stacks.
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
72
88
7
50
121
121
5
50
64
63
10
88
55
64
10
T
11
3
55
88
1
121
5
55
72
22
10
24
63
88
108
1 × 11 =T
11 × 11 =L
11 × 2 =P
1 × 3 =U
1 × 5 =A
9 × 12 =R
7 × 9 =D
11 × 8 =E
1 × 1 =F
10 × 5 =I
5 × 11 =S
2 × 5 =O
8 × 8 =N
7 × 1 =V
12 × 2 =W
6 × 12 =H
0/16 letters found
Clue 2
Word problems
A sky scout shares a tricky word problem based on their observations near the observatory.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
L
100
96
70
45
9
27
17
D
96
D
There were 103 rope coil. 3 were used up. How many rope coil are left?L
Scout Maya found 11 rope coil yesterday and 6 more today. How many rope coil in all?N
Scout Maya lined up 8 rows of 12 crystal lantern. How many crystal lantern in all?E
Scout Maya found 59 sky compass yesterday and 11 more today. How many sky compass in all?F
There were 41 airship gear. 14 were used up. How many airship gear are left?A
There were 22 airship gear. 13 were used up. How many airship gear are left?H
Scout Maya lined up 5 rows of 9 signal flare. How many signal flare in all?T
0/7 letters found
Clue 3
Percentages
The bridge computer displays partial energy readings in percentages to reveal a hidden security code.
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
41
21
26
27
43
26
16
36
5
44
43
27
14
5
25
6
10
25
44
39
43
25
45
27
26
10% of 410 =T
50% of 12 =M
25% of 104 =E
50% of 50 =O
10% of 100 =L
50% of 28 =F
75% of 28 =H
75% of 52 =D
20% of 25 =R
5% of 880 =U
5% of 900 =I
50% of 54 =S
40% of 90 =K
10% of 160 =A
25% of 172 =N
0/15 letters found
Clue 4
Exponents
An encrypted logbook uses exponential growth patterns to lock the vault files.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
B
81
64
144
343
169
121
B
81
343
125
216
256
343
125
343
169
27
144
128
400
289
49
49
9
343
361
125
121
36
343
216
361
343
128
343
9^2 =B
13^2 =F
2^7 =N
2^6 =L
7^3 =E
19^2 =C
6^3 =S
17^2 =A
2^8 =W
11^2 =I
7^2 =T
3^3 =O
12^2 =U
5^3 =R
20^2 =D
3^2 =H
6^2 =M
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
The quartermaster divides remaining signal flares equally among search teams to reveal 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
12 ÷ 12 = ?
120 ÷ 10 = ?
60 ÷ 12 = ?
33 ÷ 11 = ?
110 ÷ 10 = ?
70 ÷ 10 = ?
100 ÷ 10 = ?
40 ÷ 10 = ?
80 ÷ 10 = ?
24 ÷ 12 = ?
36 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain leaped with gravity boots, then threw a smoke bomb.
2.The villain soared on a wind glider, then threw a smoke bomb.
3.The villain blew a sonic whistle, then threw a smoke bomb.
4.The villain leaped with gravity boots, then deployed a decoy drone.
5.The villain blocked the guards, then deployed a decoy drone.
6.The villain blasted open the gate, then threw a smoke bomb.
7.The villain leaped with gravity boots, then blinded the sentries with flash powder.
8.The villain blew a sonic whistle, then snagged the latch with a grapple hook.
9.The villain blew a sonic whistle, then deployed a decoy drone.
10.The villain blew a sonic whistle, then blinded the sentries with flash powder.
11.The villain blew a sonic whistle, then disarmed the alarms with an emp grenade.
12.The villain blasted open the gate, then snagged the latch with a grapple hook.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Cloud Citadel Heist
Culprit: Ranger Owen (Pulse Cannon · Smoke Bomb · Left Handed · Neon Blue Wig · Loud Noise)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT USE FLASH POWDER"1 × 11 = 11 (T) · 11 × 11 = 121 (L) · 11 × 2 = 22 (P) · 1 × 3 = 3 (U) · 1 × 5 = 5 (A) · 9 × 12 = 108 (R) · 7 × 9 = 63 (D) · 11 × 8 = 88 (E) · 1 × 1 = 1 (F) · 10 × 5 = 50 (I) · 5 × 11 = 55 (S) · 2 × 5 = 10 (O) · 8 × 8 = 64 (N) · 7 × 1 = 7 (V) · 12 × 2 = 24 (W) · 6 × 12 = 72 (H)
- Clue 2 (Word problems): "LEFT HANDED"There were 103 rope coil. 3 were used up. How many rope coil are left? = 100 (L) · Scout Maya found 11 rope coil yesterday and 6 more today. How many rope coil in all? = 17 (N) · Scout Maya lined up 8 rows of 12 crystal lantern. How many crystal lantern in all? = 96 (E) · Scout Maya found 59 sky compass yesterday and 11 more today. How many sky compass in all? = 70 (F) · There were 41 airship gear. 14 were used up. How many airship gear are left? = 27 (A) · There were 22 airship gear. 13 were used up. How many airship gear are left? = 9 (H) · Scout Maya lined up 5 rows of 9 signal flare. How many signal flare in all? = 45 (T)
- Clue 3 (Percentages): "THE SNEAK RUNS FROM LOUD NOISE"10% of 410 = 41 (T) · 50% of 12 = 6 (M) · 25% of 104 = 26 (E) · 50% of 50 = 25 (O) · 10% of 100 = 10 (L) · 50% of 28 = 14 (F) · 75% of 28 = 21 (H) · 75% of 52 = 39 (D) · 20% of 25 = 5 (R) · 5% of 880 = 44 (U) · 5% of 900 = 45 (I) · 50% of 54 = 27 (S) · 40% of 90 = 36 (K) · 10% of 160 = 16 (A) · 25% of 172 = 43 (N)
- Clue 4 (Exponents): "BLUE FIBERS WERE FOUND AT THE CRIME SCENE"9^2 = 81 (B) · 13^2 = 169 (F) · 2^7 = 128 (N) · 2^6 = 64 (L) · 7^3 = 343 (E) · 19^2 = 361 (C) · 6^3 = 216 (S) · 17^2 = 289 (A) · 2^8 = 256 (W) · 11^2 = 121 (I) · 7^2 = 49 (T) · 3^3 = 27 (O) · 12^2 = 144 (U) · 5^3 = 125 (R) · 20^2 = 400 (D) · 3^2 = 9 (H) · 6^2 = 36 (M)
- Clue 5 (Division facts (1-12)): surviving statement (box 6) → Ranger Owen12 ÷ 12 = 1 · 120 ÷ 10 = 12 · 60 ÷ 12 = 5 · 33 ÷ 11 = 3 · 110 ÷ 10 = 11 · 70 ÷ 10 = 7 · 100 ÷ 10 = 10 · 40 ÷ 10 = 4 · 80 ÷ 10 = 8 · 24 ÷ 12 = 2 · 36 ÷ 4 = 9
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Multiplication, Word problems, Percentages, Exponents, Division
- Reading level
- grades 5-6
- Theme
- The Cloud Citadel Heist — set in The Cloud Citadel of Aethelgard
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects