Grade 4Reading: grades 3-4AdditionSubtractionMultiplicationRoundingDivision
The Cloud Kingdom Heist
The legendary Golden Compass has been swiped from the Chief Cartographer's floating workshop! A mysterious Rogue Navigator took it and zipped away into the clouds. We need to track them down before they find the secret sky temple!
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 | Backup Tool | Goggle Wear | Helmet Hair | Fear |
|---|---|---|---|---|---|
| Jack | Glider Cape | Sonic Whistle | Goggles on Forehead | Curly Green Locks | Squeaky Shoes |
| Leia | Rocket Boots | Laser Cutter | Goggles on Neck | Spiky Blue Hair | Squeaky Shoes |
| Buzz | Glider Cape | Laser Cutter | Goggles on Forehead | Spiky Blue Hair | Loud Sneezes |
| Wendy | Turbo Propeller | Smoke Bomb | Goggles on Neck | Curly Green Locks | Ticklish Feathers |
| Indy | Grappling Hook | Magnetic Net | Goggles on Neck | Spiky Blue Hair | Ticklish Feathers |
| Bindi | Rocket Boots | Smoke Bomb | Goggles on Forehead | Spiky Blue Hair | Loud Sneezes |
| Alice | Turbo Propeller | Sonic Whistle | Goggles on Neck | Curly Green Locks | Ticklish Feathers |
| Bear | Glider Cape | Magnetic Net | Goggles on Forehead | Spiky Blue Hair | Loud Sneezes |
| Lara | Turbo Propeller | Magnetic Net | Goggles on Forehead | Spiky Blue Hair | Squeaky Shoes |
| Rey | Turbo Propeller | Magnetic Net | Goggles on Forehead | Spiky Blue Hair | Loud Sneezes |
| Arthur | Glider Cape | Solar Flashlight | Goggles on Neck | Curly Green Locks | Squeaky Shoes |
| Han | Turbo Propeller | Magnetic Net | Goggles on Neck | Curly Green Locks | Ticklish Feathers |
| Robin | Grappling Hook | Laser Cutter | Goggles on Neck | Curly Green Locks | Ticklish Feathers |
| Neil | Climbing Claws | Solar Flashlight | Goggles on Neck | Curly Green Locks | Ticklish Feathers |
| Amelia | Rocket Boots | Smoke Bomb | Goggles on Forehead | Curly Green Locks | Ticklish Feathers |
| Sally | Glider Cape | Magnetic Net | Goggles on Forehead | Curly Green Locks | Squeaky Shoes |
| Marco | Climbing Claws | Sonic Whistle | Goggles on Neck | Curly Green Locks | Loud Sneezes |
| Steve | Rocket Boots | Magnetic Net | Goggles on Neck | Bright Orange Ponytail | Loud Sneezes |
| Diego | Rocket Boots | Sonic Whistle | Goggles on Neck | Bright Orange Ponytail | Ticklish Feathers |
| Luke | Rocket Boots | Magnetic Net | Goggles on Forehead | Curly Green Locks | Ticklish Feathers |
| Jane | Grappling Hook | Smoke Bomb | Goggles on Forehead | Curly Green Locks | Loud Sneezes |
Clue 1
Addition
We found the rogue's gear bag! To count the total badges inside, we need to add the gold badges and the silver badges together.
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
9483
9227
4403
2841
3916
5445
5445
9228
3916
5632
3428
9050
4403
3812
5632
9050
T
9483
4619
3812
4403
9228
3812
9050
5632
3916
6175
6760
9227
3916
3812
T
9483
5445
4403
5668 + 3815 =T
2580 + 2039 =U
4634 + 4594 =A
4248 + 2512 =W
1060 + 2368 =D
1401 + 2515 =I
2679 + 1724 =E
2812 + 2820 =N
6018 + 3032 =O
1769 + 2043 =S
5204 + 4023 =H
2488 + 3687 =C
2641 + 2804 =L
1571 + 1270 =V
0/14 letters found
Clue 2
Subtraction
The escape balloon is leaking hot air! Let's subtract the lost altitude from the starting height to see how low they are flying.
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
1712
3364
1401
5406
4944
5406
6115
1401
1502
T
1712
1846
1401
3519
4854
5406
8629
5439
8629
8629
8102
1401
5406
3519
4854
5439
4944
8090
4990
T
1712
3364
1401
5816
4854
8090
1401
1502
3353
6042 - 4330 =T
11650 - 3021 =G
9306 - 4316 =D
3543 - 24 =A
7092 - 3739 =K
6858 - 3494 =H
7140 - 1025 =P
6104 - 698 =S
10563 - 2473 =N
4832 - 3431 =E
9095 - 3279 =I
11826 - 3724 =L
2837 - 1335 =C
6811 - 1372 =O
4527 - 2681 =W
9444 - 4590 =R
6069 - 1125 =U
0/17 letters found
Clue 3
Multiplication facts (1-12)
The runaway balloon dropped boxes of energy bars. The boxes are stacked in equal rows, so we can multiply to find the total.
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
88
27
108
14
16
48
48
40
16
33
6
27
16
14
108
50
6
33
108
40
50
T
88
16
99
2
48
16
6
27
110
108
40
T
88
27
108
50
6
11 × 8 =T
3 × 9 =H
2 × 8 =I
11 × 10 =F
12 × 9 =E
6 × 8 =L
1 × 2 =K
2 × 3 =S
8 × 5 =A
11 × 9 =C
3 × 11 =N
5 × 10 =R
7 × 2 =V
0/13 letters found
Clue 4
Rounding
Our wind radar is blurry and can only show rounded numbers. Let's round the speed dial to the nearest ten to get a lock on their position.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
C
7000
2000
70
1700
230
500
70
110
110
290
1700
9000
C
7000
300
50
2900
110
70
110
1700
110
90
200
9000
290
200
900
110
50
110
5000
200
Round 6,916 to the nearest thousandC
Round 4,732 to the nearest thousandA
Round 869 to the nearest hundredH
Round 8,873 to the nearest thousandO
Round 274 to the nearest hundredK
Round 107 to the nearest tenE
Round 47 to the nearest tenS
Round 72 to the nearest tenR
Round 290 to the nearest tenN
Round 504 to the nearest hundredG
Round 1,735 to the nearest hundredL
Round 232 to the nearest tenY
Round 171 to the nearest hundredT
Round 2,949 to the nearest hundredW
Round 91 to the nearest tenF
Round 2,054 to the nearest thousandU
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The rogue dropped a secret code sheet. We must divide the total code points equally among our search teams to decode the 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
3 ÷ 3 = ?
100 ÷ 10 = ?
72 ÷ 9 = ?
24 ÷ 8 = ?
36 ÷ 6 = ?
36 ÷ 4 = ?
120 ÷ 10 = ?
121 ÷ 11 = ?
20 ÷ 4 = ?
48 ÷ 12 = ?
70 ÷ 10 = ?
Step 2 — cross out the sentence with each answer
1.The villain buzzed past the watchtower, then vanished into a cloud of purple mist.
2.The villain scaled the ancient cliff, then blinded the guard with a bright light.
3.The villain scaled the ancient cliff, then scared away the nesting sky birds.
4.The villain swung across the canyon, then scared away the nesting sky birds.
5.The villain buzzed past the watchtower, then blinded the guard with a bright light.
6.The villain blasted over the cloud wall, then blinded the guard with a bright light.
7.The villain buzzed past the watchtower, then sliced open the locked cargo crate.
8.The villain swung across the canyon, then sliced open the locked cargo crate.
9.The villain blasted over the cloud wall, then vanished into a cloud of purple mist.
10.The villain buzzed past the watchtower, then scooped up the floating gems.
11.The villain soared down the windy valley, then scared away the nesting sky birds.
12.The villain swung across the canyon, then vanished into a cloud of purple mist.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Cloud Kingdom Heist
Culprit: Neil (Climbing Claws · Solar Flashlight · Goggles on Neck · Curly Green Locks · Ticklish Feathers)
- Clue 1 (Addition): "THE VILLAIN DOES NOT USE A SONIC WHISTLE"5668 + 3815 = 9483 (T) · 2580 + 2039 = 4619 (U) · 4634 + 4594 = 9228 (A) · 4248 + 2512 = 6760 (W) · 1060 + 2368 = 3428 (D) · 1401 + 2515 = 3916 (I) · 2679 + 1724 = 4403 (E) · 2812 + 2820 = 5632 (N) · 6018 + 3032 = 9050 (O) · 1769 + 2043 = 3812 (S) · 5204 + 4023 = 9227 (H) · 2488 + 3687 = 6175 (C) · 2641 + 2804 = 5445 (L) · 1571 + 1270 = 2841 (V)
- Clue 2 (Subtraction): "THE SUSPECT WEARS GOGGLES AROUND THEIR NECK"6042 - 4330 = 1712 (T) · 11650 - 3021 = 8629 (G) · 9306 - 4316 = 4990 (D) · 3543 - 24 = 3519 (A) · 7092 - 3739 = 3353 (K) · 6858 - 3494 = 3364 (H) · 7140 - 1025 = 6115 (P) · 6104 - 698 = 5406 (S) · 10563 - 2473 = 8090 (N) · 4832 - 3431 = 1401 (E) · 9095 - 3279 = 5816 (I) · 11826 - 3724 = 8102 (L) · 2837 - 1335 = 1502 (C) · 6811 - 1372 = 5439 (O) · 4527 - 2681 = 1846 (W) · 9444 - 4590 = 4854 (R) · 6069 - 1125 = 4944 (U)
- Clue 3 (Multiplication facts (1-12)): "THE VILLAIN SHIVERS NEAR TICKLISH FEATHERS"11 × 8 = 88 (T) · 3 × 9 = 27 (H) · 2 × 8 = 16 (I) · 11 × 10 = 110 (F) · 12 × 9 = 108 (E) · 6 × 8 = 48 (L) · 1 × 2 = 2 (K) · 2 × 3 = 6 (S) · 8 × 5 = 40 (A) · 11 × 9 = 99 (C) · 3 × 11 = 33 (N) · 5 × 10 = 50 (R) · 7 × 2 = 14 (V)
- Clue 4 (Rounding): "CURLY GREEN LOCKS WERE LEFT ON THE SEAT"Round 6,916 to the nearest thousand = 7000 (C) · Round 4,732 to the nearest thousand = 5000 (A) · Round 869 to the nearest hundred = 900 (H) · Round 8,873 to the nearest thousand = 9000 (O) · Round 274 to the nearest hundred = 300 (K) · Round 107 to the nearest ten = 110 (E) · Round 47 to the nearest ten = 50 (S) · Round 72 to the nearest ten = 70 (R) · Round 290 to the nearest ten = 290 (N) · Round 504 to the nearest hundred = 500 (G) · Round 1,735 to the nearest hundred = 1700 (L) · Round 232 to the nearest ten = 230 (Y) · Round 171 to the nearest hundred = 200 (T) · Round 2,949 to the nearest hundred = 2900 (W) · Round 91 to the nearest ten = 90 (F) · Round 2,054 to the nearest thousand = 2000 (U)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Neil3 ÷ 3 = 1 · 100 ÷ 10 = 10 · 72 ÷ 9 = 8 · 24 ÷ 8 = 3 · 36 ÷ 6 = 6 · 36 ÷ 4 = 9 · 120 ÷ 10 = 12 · 121 ÷ 11 = 11 · 20 ÷ 4 = 5 · 48 ÷ 12 = 4 · 70 ÷ 10 = 7
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Subtraction, Multiplication, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Cloud Kingdom Heist — set in the floating islands of Nimbus Valley
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects