Grade 5Reading: grades 5-6AdditionSubtractionMultiplicationMulti-step word problemsDivision
The Great Sky-Island Heist
The legendary Star-Map has been snatched from the floating Grand Observatory! Without it, the Sky-Islands will be lost in the endless clouds forever. As the Lead Detective of the Aero-Explorer Squad, you must take to the skies, solve the clues left behind, and recover the map from the mysterious sky-thief.
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 | Airship Gear | Pet Companion | Observed Clue | Hair Color | Secret Obstacle |
|---|---|---|---|---|---|
| Merlin | Wind Blaster | Pygmy Dragon | Right-handed glove | Braided red hair | Shiny gold coins |
| Jacques | Grapple Glove | Clockwork Beetle | Right-handed glove | Curly green hair | Shiny gold coins |
| Indiana | Cloud Cloak | Mechanical Falcon | Left-handed glove | Spiky blue hair | Sweet maple syrup |
| Kai | Gravity Boots | Mechanical Falcon | Right-handed glove | Braided red hair | High-pitched whistles |
| Lara | Storm Shield | Mechanical Falcon | Left-handed glove | Curly green hair | Shiny gold coins |
| Robin | Cloud Cloak | Bubble Octopus | Right-handed glove | Spiky blue hair | High-pitched whistles |
| Buzz | Cloud Cloak | Bubble Octopus | Right-handed glove | Curly green hair | High-pitched whistles |
| Cole | Storm Shield | Bubble Octopus | Right-handed glove | Braided red hair | Sweet maple syrup |
| Hazel | Wind Blaster | Clockwork Beetle | Left-handed glove | Spiky blue hair | Sweet maple syrup |
| Annabeth | Cloud Cloak | Clockwork Beetle | Right-handed glove | Curly green hair | High-pitched whistles |
| Lloyd | Storm Shield | Pygmy Dragon | Left-handed glove | Braided red hair | Sweet maple syrup |
| Diana | Gravity Boots | Mechanical Falcon | Left-handed glove | Curly green hair | High-pitched whistles |
| Amelia | Cloud Cloak | Cyber Squirrel | Right-handed glove | Spiky blue hair | High-pitched whistles |
| Nya | Gravity Boots | Pygmy Dragon | Left-handed glove | Spiky blue hair | Shiny gold coins |
| Isabella | Grapple Glove | Clockwork Beetle | Left-handed glove | Curly green hair | High-pitched whistles |
| Arthur | Gravity Boots | Mechanical Falcon | Right-handed glove | Curly green hair | High-pitched whistles |
| Jay | Wind Blaster | Bubble Octopus | Right-handed glove | Braided red hair | Shiny gold coins |
| Sally | Cloud Cloak | Mechanical Falcon | Right-handed glove | Curly green hair | High-pitched whistles |
| Nellie | Storm Shield | Bubble Octopus | Left-handed glove | Curly green hair | High-pitched whistles |
| Finn | Gravity Boots | Pygmy Dragon | Right-handed glove | Braided red hair | High-pitched whistles |
| Zane | Cloud Cloak | Cyber Squirrel | Right-handed glove | Curly green hair | High-pitched whistles |
Clue 1
Addition
The Sky-Islands are buzzing with news of the theft. To start our search, we need to add up the total weight of the fuel canisters loaded onto the explorer blimps this morning.
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
8985
3000
2787
T
8985
3000
4241
2787
2905
2037
6188
2787
8317
8140
6188
T
8985
3000
4140
2097
2787
4140
8260
6920
8260
8260
2970
2787
6188
2423
T
8985
6188
5169
6920
8317
3379 + 5606 =T
956 + 2014 =L
1303 + 1697 =H
2096 + 3073 =P
1824 + 1081 =F
5476 + 2841 =S
1864 + 2276 =A
3224 + 5036 =B
801 + 1296 =V
1068 + 969 =D
5334 + 2806 =N
4001 + 2187 =O
977 + 1446 =C
1475 + 2766 =I
2118 + 4802 =U
1847 + 940 =E
0/16 letters found
Clue 2
Subtraction
Our tracker blimp is hot on the trail, but the sky-thief threw heavy cargo overboard to speed up. We must subtract the lost weight from our starting total to find our current weight.
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
3288
3439
7602
3128
2313
5043
3439
T
3288
5043
7733
3643
4638
7602
7411
3128
2313
2496
T
3288
7589
2107
5180
7733
7602
7725
T
3288
2107
T
3288
T
3288
3439
7602
5180
4837
7602
2496
7602
4070 - 782 =T
10416 - 2814 =E
8922 - 4085 =C
8430 - 3250 =S
5471 - 2975 =N
3444 - 5 =H
11195 - 3784 =P
8080 - 347 =L
10188 - 2599 =W
6845 - 1802 =G
3539 - 1226 =I
4528 - 2421 =A
12038 - 4313 =F
6928 - 2290 =V
3383 - 255 =R
8224 - 4581 =O
0/16 letters found
Clue 3
Multiplication facts (1-12)
The trail leads to a sector with several floating docks. Each dock has multiple storage crates stacked in equal rows. Let us multiply the rows to find the total number of crates we must search.
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
60
4
32
20
99
25
96
25
54
25
20
120
99
80
27
4
11
70
4
110
11
T
60
72
4
32
42
54
4
11
12
T
60
56
32
12
6 × 10 =T
10 × 11 =P
8 × 10 =O
9 × 11 =R
8 × 9 =C
11 × 1 =I
4 × 8 =E
2 × 10 =Y
8 × 7 =L
10 × 7 =G
12 × 10 =F
5 × 5 =A
1 × 4 =H
7 × 6 =D
9 × 6 =W
12 × 8 =N
12 × 1 =S
3 × 9 =M
0/18 letters found
Clue 4
Multi-step word problems
A locked cipher box was dropped by the suspect. To unlock the brass gears, we have to solve a series of steps: doubling the sky-miles, subtracting the headwinds, and then adding our safety margin.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
C
60
66
39
83
59
44
39
86
86
N
H
A
I
39
Sky Scout collected 124 cloud crystals in the morning and 56 cloud crystals in the afternoon, then split them equally among 3 Aero-Explorer Squad. How many cloud crystals did each get?C
Sky Scout earned 8 map scrolls in each of 3 rounds, plus 37 bonus map scrolls. Then 2 map scrolls were lost. How many map scrolls are left?Y
Sky Scout collected 208 map scrolls in the morning and 41 map scrolls in the afternoon, then split them equally among 3 Aero-Explorer Squad. How many map scrolls did each get?L
There were 440 grappling hooks in all. 4 Aero-Explorer Squad used 24 grappling hooks each. The other 4 Aero-Explorer Squad shared the rest equally. How many grappling hooks did each of the other Aero-Explorer Squad get?E
There were 378 compasses in all. 27 compasses were set aside. The rest were shared equally among 9 Aero-Explorer Squad. How many compasses did each get?R
There were 368 grappling hooks in all. 1 Aero-Explorer Squad used 38 grappling hooks each. The other 5 Aero-Explorer Squad shared the rest equally. How many grappling hooks did each of the other Aero-Explorer Squad get?U
Sky Scout earned 5 grappling hooks in each of 5 rounds, plus 20 bonus grappling hooks. Then 1 grappling hooks were lost. How many grappling hooks are left?G
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
We found a cache of stolen sky-relics hidden in a cloud bank. To return them safely to the museum, we need to divide the relics equally among our transport crates.
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
8 ÷ 1 = ?
42 ÷ 7 = ?
30 ÷ 6 = ?
10 ÷ 5 = ?
36 ÷ 12 = ?
40 ÷ 10 = ?
96 ÷ 8 = ?
66 ÷ 6 = ?
108 ÷ 12 = ?
70 ÷ 7 = ?
56 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain zoomed past on gravity boots, then sent a mechanical falcon to grab the map.
2.The villain fired a gust from a wind blaster, then used a cyber squirrel to hack the locks.
3.The villain fired a gust from a wind blaster, then sent a mechanical falcon to grab the map.
4.The villain zoomed past on gravity boots, then ordered a pygmy dragon to light the way.
5.The villain vanished inside a cloud cloak, then released a clockwork beetle to distract the crew.
6.The villain vanished inside a cloud cloak, then used a cyber squirrel to hack the locks.
7.The villain swung across using a grapple glove, then released a clockwork beetle to distract the crew.
8.The villain vanished inside a cloud cloak, then sent a mechanical falcon to grab the map.
9.The villain zoomed past on gravity boots, then commanded a bubble octopus to ink the windows.
10.The villain swung across using a grapple glove, then commanded a bubble octopus to ink the windows.
11.The villain blocked the guards with a storm shield, then ordered a pygmy dragon to light the way.
12.The villain swung across using a grapple glove, then sent a mechanical falcon to grab the map.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Sky-Island Heist
Culprit: Arthur (Gravity Boots · Mechanical Falcon · Right-handed glove · Curly green hair · High-pitched whistles)
- Clue 1 (Addition): "THE THIEF DOES NOT HAVE A BUBBLE OCTOPUS"3379 + 5606 = 8985 (T) · 956 + 2014 = 2970 (L) · 1303 + 1697 = 3000 (H) · 2096 + 3073 = 5169 (P) · 1824 + 1081 = 2905 (F) · 5476 + 2841 = 8317 (S) · 1864 + 2276 = 4140 (A) · 3224 + 5036 = 8260 (B) · 801 + 1296 = 2097 (V) · 1068 + 969 = 2037 (D) · 5334 + 2806 = 8140 (N) · 4001 + 2187 = 6188 (O) · 977 + 1446 = 2423 (C) · 1475 + 2766 = 4241 (I) · 2118 + 4802 = 6920 (U) · 1847 + 940 = 2787 (E)
- Clue 2 (Subtraction): "THE RIGHT GLOVE PRINT WAS LEFT AT THE SCENE"4070 - 782 = 3288 (T) · 10416 - 2814 = 7602 (E) · 8922 - 4085 = 4837 (C) · 8430 - 3250 = 5180 (S) · 5471 - 2975 = 2496 (N) · 3444 - 5 = 3439 (H) · 11195 - 3784 = 7411 (P) · 8080 - 347 = 7733 (L) · 10188 - 2599 = 7589 (W) · 6845 - 1802 = 5043 (G) · 3539 - 1226 = 2313 (I) · 4528 - 2421 = 2107 (A) · 12038 - 4313 = 7725 (F) · 6928 - 2290 = 4638 (V) · 3383 - 255 = 3128 (R) · 8224 - 4581 = 3643 (O)
- Clue 3 (Multiplication facts (1-12)): "THEY RAN AWAY FROM HIGH PITCHED WHISTLES"6 × 10 = 60 (T) · 10 × 11 = 110 (P) · 8 × 10 = 80 (O) · 9 × 11 = 99 (R) · 8 × 9 = 72 (C) · 11 × 1 = 11 (I) · 4 × 8 = 32 (E) · 2 × 10 = 20 (Y) · 8 × 7 = 56 (L) · 10 × 7 = 70 (G) · 12 × 10 = 120 (F) · 5 × 5 = 25 (A) · 1 × 4 = 4 (H) · 7 × 6 = 42 (D) · 9 × 6 = 54 (W) · 12 × 8 = 96 (N) · 12 × 1 = 12 (S) · 3 × 9 = 27 (M)
- Clue 4 (Multi-step word problems): "CURLY GREEN HAIR"Sky Scout collected 124 cloud crystals in the morning and 56 cloud crystals in the afternoon, then split them equally among 3 Aero-Explorer Squad. How many cloud crystals did each get? = 60 (C) · Sky Scout earned 8 map scrolls in each of 3 rounds, plus 37 bonus map scrolls. Then 2 map scrolls were lost. How many map scrolls are left? = 59 (Y) · Sky Scout collected 208 map scrolls in the morning and 41 map scrolls in the afternoon, then split them equally among 3 Aero-Explorer Squad. How many map scrolls did each get? = 83 (L) · There were 440 grappling hooks in all. 4 Aero-Explorer Squad used 24 grappling hooks each. The other 4 Aero-Explorer Squad shared the rest equally. How many grappling hooks did each of the other Aero-Explorer Squad get? = 86 (E) · There were 378 compasses in all. 27 compasses were set aside. The rest were shared equally among 9 Aero-Explorer Squad. How many compasses did each get? = 39 (R) · There were 368 grappling hooks in all. 1 Aero-Explorer Squad used 38 grappling hooks each. The other 5 Aero-Explorer Squad shared the rest equally. How many grappling hooks did each of the other Aero-Explorer Squad get? = 66 (U) · Sky Scout earned 5 grappling hooks in each of 5 rounds, plus 20 bonus grappling hooks. Then 1 grappling hooks were lost. How many grappling hooks are left? = 44 (G)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Arthur8 ÷ 1 = 8 · 42 ÷ 7 = 6 · 30 ÷ 6 = 5 · 10 ÷ 5 = 2 · 36 ÷ 12 = 3 · 40 ÷ 10 = 4 · 96 ÷ 8 = 12 · 66 ÷ 6 = 11 · 108 ÷ 12 = 9 · 70 ÷ 7 = 10 · 56 ÷ 8 = 7
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Addition, Subtraction, Multiplication, Multi-step word problems, Division
- Reading level
- grades 5-6
- Theme
- The Great Sky-Island Heist — set in The Floating Sky-Islands of Aetheria
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects