Grade 5Reading: grades 3-4MultiplicationWord problemsBar modelsFractions of a numberDivision
Mystery of the Cloudtop Citadel
Someone snuck into the Sky Citadel library and stole the golden cloud map! The Chief Navigator needs your detective skills to solve the clues, track down the culprit, and save the day.
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 | Main Gear | Extra Tool | Dominant Hand | Hair Style | Secret Weakness |
|---|---|---|---|---|---|
| Cadet Zoe | Glider Wings | Rations Bag | Left Handed | Curly Red | Loud Whistles |
| Sky Captain Sam | Glider Wings | Rations Bag | Left Handed | Spiky Blonde | Shiny Objects |
| Captain Drake | Smoke Bombs | Rations Bag | Left Handed | Curly Red | Loud Whistles |
| Agent Cleo | Smoke Bombs | Map Scroll | Right Handed | Braided Black | Shiny Objects |
| Scout Toby | Magnetic Boots | Brass Spyglass | Left Handed | Curly Red | Loud Whistles |
| Navigator Ben | Glider Wings | Brass Spyglass | Left Handed | Curly Red | Sneeze Powder |
| Racer Zane | Grappling Hook | Map Scroll | Left Handed | Spiky Blonde | Loud Whistles |
| Captain Milo | Grappling Hook | Map Scroll | Right Handed | Spiky Blonde | Sneeze Powder |
| Racer Finn | Flash Lantern | Map Scroll | Left Handed | Curly Red | Sneeze Powder |
| Explorer Iris | Grappling Hook | Rations Bag | Right Handed | Curly Red | Loud Whistles |
| Ranger Eli | Grappling Hook | Ancient Compass | Left Handed | Braided Black | Shiny Objects |
| Cadet Luna | Magnetic Boots | Brass Spyglass | Left Handed | Spiky Blonde | Loud Whistles |
| Pilot Ruby | Smoke Bombs | Rations Bag | Right Handed | Curly Red | Sneeze Powder |
| Explorer Nina | Smoke Bombs | Map Scroll | Left Handed | Braided Black | Loud Whistles |
| Engineer Owen | Smoke Bombs | Map Scroll | Left Handed | Curly Red | Loud Whistles |
| Aviator Ivy | Glider Wings | Map Scroll | Right Handed | Braided Black | Shiny Objects |
| Commander Nora | Glider Wings | Rations Bag | Right Handed | Spiky Blonde | Loud Whistles |
| Navigator Luke | Smoke Bombs | Rations Bag | Left Handed | Spiky Blonde | Loud Whistles |
| Aviator Cora | Flash Lantern | Ancient Compass | Left Handed | Curly Red | Loud Whistles |
| Officer Jax | Glider Wings | Map Scroll | Left Handed | Curly Red | Sneeze Powder |
| Tracker Kai | Glider Wings | Ancient Compass | Left Handed | Braided Black | Shiny Objects |
Clue 1
Multiplication facts (1-12)
You find supply crates stacked in neat rows on the airship deck. Multiplying the rows gives you the code to unlock 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
44
3
81
108
77
7
7
35
77
1
80
88
81
28
1
88
T
44
6
35
4
4
90
35
28
48
90
132
7
35
28
28
4 × 11 =T
8 × 11 =O
12 × 9 =V
7 × 1 =L
12 × 11 =G
7 × 4 =S
1 × 4 =R
1 × 3 =H
5 × 7 =A
11 × 7 =I
8 × 10 =D
1 × 1 =N
9 × 9 =E
9 × 10 =Y
3 × 2 =C
6 × 8 =P
0/16 letters found
Clue 2
Word problems
The ship keeper leaves a logbook with adventure notes and supply counts. Solving the story problem reveals the next lead.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
L
81
62
65
97
84
15
29
D
62
D
Navigator lined up 9 rows of 9 lanterns. How many lanterns in all?L
Navigator found 35 lanterns yesterday and 27 more today. How many lanterns in all?E
There were 107 glider packs. 23 were used up. How many glider packs are left?H
There were 104 compasses. 39 were used up. How many compasses are left?F
Navigator found 15 compasses yesterday and 14 more today. How many compasses in all?N
Navigator found 26 lanterns yesterday and 71 more today. How many lanterns in all?T
There were 39 compasses. 24 were used up. How many compasses are left?A
0/7 letters found
Clue 3
Bar model word problems
A bar chart on the command board compares the gear carried by each explorer. Filling in the bars points to the suspect.
Draw a bar model to solve each word problem. Its answer reveals a letter — write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
L
41
6
107
96
92
94
48
S
T
L
41
E
S
Navigator has 164 lanterns, packed 4 to a bag. How many bags can be filled?
draw a bar model
Answer:→L
Navigator shares 184 compasses equally among 2 teams. How many compasses does each team get?
draw a bar model
Answer:→W
The red team has 108 grappling hooks and the blue team has 1 grappling hooks. How many more grappling hooks does the red team have?
draw a bar model
Answer:→U
The red team has 60 map tubes and the blue team has 12 map tubes. How many more map tubes does the red team have?
draw a bar model
Answer:→I
The red team has 118 map tubes and the blue team has 24 map tubes. How many more map tubes does the red team have?
draw a bar model
Answer:→H
Navigator has 3 times as many lanterns as a teammate. The teammate has 2 lanterns. How many lanterns does Navigator have?
draw a bar model
Answer:→O
Navigator has 8 times as many lanterns as a teammate. The teammate has 12 lanterns. How many lanterns does Navigator have?
draw a bar model
Answer:→D
0/7 letters found
Clue 4
Fractions of a number
The navigator stored gold tokens in marked sacks. Finding the fraction of the total vault shows where the thief went.
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
9
20
11
7
8
36
7
19
22
31
A
9
38
7
30
A
9
34
25
15
11
40
22
A
9
24
24
31
19
34
20
19
40
19
9/10 of 10 =A
4/10 of 85 =S
2/10 of 120 =T
2/4 of 38 =E
2/6 of 60 =C
4/10 of 20 =L
2/5 of 100 =N
2/5 of 55 =D
1/8 of 200 =F
6/8 of 40 =W
6/8 of 48 =Y
2/4 of 30 =O
1/2 of 22 =U
1/4 of 28 =R
1/6 of 186 =H
1/5 of 190 =I
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The crew shares the remaining sky crystals equally into containers. Dividing the total reveals the final secret.
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
27 ÷ 3 = ?
40 ÷ 10 = ?
66 ÷ 6 = ?
6 ÷ 2 = ?
14 ÷ 7 = ?
50 ÷ 10 = ?
63 ÷ 9 = ?
64 ÷ 8 = ?
70 ÷ 7 = ?
5 ÷ 5 = ?
6 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain soared over using glider wings, then checked the ancient compass.
2.The villain soared over using glider wings, then spied through the brass spyglass.
3.The villain soared over using glider wings, then scanned the dusty map scroll.
4.The villain blinded the guards with a flash lantern, then checked the ancient compass.
5.The villain swung across with a grappling hook, then scanned the dusty map scroll.
6.The villain walked up walls with magnetic boots, then checked the ancient compass.
7.The villain soared over using glider wings, then tied off a heavy rope coil.
8.The villain blinded the guards with a flash lantern, then tied off a heavy rope coil.
9.The villain vanished behind a smoke bomb, then scanned the dusty map scroll.
10.The villain vanished behind a smoke bomb, then spied through the brass spyglass.
11.The villain vanished behind a smoke bomb, then snacked from a rations bag.
12.The villain soared over using glider wings, then snacked from a rations bag.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — Mystery of the Cloudtop Citadel
Culprit: Cadet Zoe (Glider Wings · Rations Bag · Left Handed · Curly Red · Loud Whistles)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT CARRY A SPYGLASS"4 × 11 = 44 (T) · 8 × 11 = 88 (O) · 12 × 9 = 108 (V) · 7 × 1 = 7 (L) · 12 × 11 = 132 (G) · 7 × 4 = 28 (S) · 1 × 4 = 4 (R) · 1 × 3 = 3 (H) · 5 × 7 = 35 (A) · 11 × 7 = 77 (I) · 8 × 10 = 80 (D) · 1 × 1 = 1 (N) · 9 × 9 = 81 (E) · 9 × 10 = 90 (Y) · 3 × 2 = 6 (C) · 6 × 8 = 48 (P)
- Clue 2 (Word problems): "LEFT HANDED"Navigator lined up 9 rows of 9 lanterns. How many lanterns in all? = 81 (L) · Navigator found 35 lanterns yesterday and 27 more today. How many lanterns in all? = 62 (E) · There were 107 glider packs. 23 were used up. How many glider packs are left? = 84 (H) · There were 104 compasses. 39 were used up. How many compasses are left? = 65 (F) · Navigator found 15 compasses yesterday and 14 more today. How many compasses in all? = 29 (N) · Navigator found 26 lanterns yesterday and 71 more today. How many lanterns in all? = 97 (T) · There were 39 compasses. 24 were used up. How many compasses are left? = 15 (A)
- Clue 3 (Bar model word problems): "LOUD WHISTLES"Navigator has 164 lanterns, packed 4 to a bag. How many bags can be filled? = 41 (L) · Navigator shares 184 compasses equally among 2 teams. How many compasses does each team get? = 92 (W) · The red team has 108 grappling hooks and the blue team has 1 grappling hooks. How many more grappling hooks does the red team have? = 107 (U) · The red team has 60 map tubes and the blue team has 12 map tubes. How many more map tubes does the red team have? = 48 (I) · The red team has 118 map tubes and the blue team has 24 map tubes. How many more map tubes does the red team have? = 94 (H) · Navigator has 3 times as many lanterns as a teammate. The teammate has 2 lanterns. How many lanterns does Navigator have? = 6 (O) · Navigator has 8 times as many lanterns as a teammate. The teammate has 12 lanterns. How many lanterns does Navigator have? = 96 (D)
- Clue 4 (Fractions of a number): "A CURLY RED HAIR WAS FOUND AT THE SCENE"9/10 of 10 = 9 (A) · 4/10 of 85 = 34 (S) · 2/10 of 120 = 24 (T) · 2/4 of 38 = 19 (E) · 2/6 of 60 = 20 (C) · 4/10 of 20 = 8 (L) · 2/5 of 100 = 40 (N) · 2/5 of 55 = 22 (D) · 1/8 of 200 = 25 (F) · 6/8 of 40 = 30 (W) · 6/8 of 48 = 36 (Y) · 2/4 of 30 = 15 (O) · 1/2 of 22 = 11 (U) · 1/4 of 28 = 7 (R) · 1/6 of 186 = 31 (H) · 1/5 of 190 = 38 (I)
- Clue 5 (Division facts (1-12)): surviving statement (box 12) → Cadet Zoe27 ÷ 3 = 9 · 40 ÷ 10 = 4 · 66 ÷ 6 = 11 · 6 ÷ 2 = 3 · 14 ÷ 7 = 2 · 50 ÷ 10 = 5 · 63 ÷ 9 = 7 · 64 ÷ 8 = 8 · 70 ÷ 7 = 10 · 5 ÷ 5 = 1 · 6 ÷ 1 = 6
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Multiplication, Word problems, Bar models, Fractions of a number, Division
- Reading level
- grades 3-4
- Theme
- Mystery of the Cloudtop Citadel — set in Cloudtop Citadel
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects