Math Crackers
Grade 10Reading: grades 7-9Pythagorean theoremSquare rootsExponentsOrder of operations

The Sky-Loom Heist

The floating sky-islands of Aethelgard are in deep trouble! The legendary Golden Astrolabe has been stolen from the Chief Cartographer's sky-tower. The thief escaped by airship, leaving a trail of high-tech gear and debris in the clouds. We have a list of suspects from the Aero-Explorer Guild, but we must use our mathematical detective skills to find 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
NameSky-GearSecondary ToolGoggle ChoiceHair TintVulnerability
Bessie Colemansteam jetpacksmoke bombsleather visorsunset orange hairdazed by bright light
Roald Amundsensteam jetpacknet launcherleather visorstorm grey hairshorted by salt water
Jacques Cousteauglider wingsnet launcherleather visorsunset orange hairdazed by bright light
Harriet Quimbymagnetic glovesdecoy dronesbrass gogglessunset orange hairdazed by bright light
Isabella Birdgravity bootssmoke bombsbrass gogglessunset orange hairdazed by bright light
Amelia Earhartglider wingssmoke bombsbrass gogglesstorm grey hairdazed by bright light
Nellie Blymagnetic glovessmoke bombsleather visorneon blue hairshorted by salt water
Alexander Humboldtgrapple launcherstealth cloakbrass gogglessunset orange hairdazed by bright light
Ibnu Battutagravity bootsstealth cloakleather visorneon blue hairclogged by dust
Ranulph Fiennesgravity bootssmoke bombsleather visorstorm grey hairshorted by salt water
Sally Ridesteam jetpacknet launcherleather visorneon blue hairdazed by bright light
Robert Pearymagnetic glovessmoke bombsbrass gogglesstorm grey hairclogged by dust
Ferdinand Magellangravity bootsflash flaresbrass gogglesstorm grey hairshorted by salt water
Thor Heyerdahlgravity bootsnet launcherleather visorsunset orange hairdazed by bright light
Matthew Hensongravity bootsnet launcherbrass gogglessunset orange hairdazed by bright light
Leif Eriksongrapple launcherdecoy dronesbrass gogglessunset orange hairshorted by salt water
Charles Lindberghgravity bootsflash flaresbrass gogglesneon blue hairclogged by dust
Marco Polograpple launcherdecoy dronesleather visorstorm grey hairdazed by bright light
Jeanne Baretmagnetic glovesnet launcherbrass gogglessunset orange hairdazed by bright light
Yuri Gagaringlider wingssmoke bombsleather visorsunset orange hairclogged by dust
Sacagaweagrapple launcherflash flaresleather visorsunset orange hairclogged by dust
Clue 1

Pythagorean theorem

To trace the escape path across the sky, we calculated the direct diagonal shortcut between the two floating docks using a right-triangle map.

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
39
82
13
T
39
82
111
13
52
74
26
13
30
125
26
T
39
50
30
13
15
30
T
39
13
15
123
T
39
82
34
123
26
15
65
legs 15 and 36, hypotenuse =T
legs 20 and 48, hypotenuse =F
legs 18 and 80, hypotenuse =H
legs 27 and 120, hypotenuse =L
legs 16 and 30, hypotenuse =C
legs 36 and 105, hypotenuse =I
legs 35 and 120, hypotenuse =N
legs 10 and 24, hypotenuse =O
legs 14 and 48, hypotenuse =U
legs 5 and 12, hypotenuse =E
legs 18 and 24, hypotenuse =S
legs 9 and 12, hypotenuse =A
legs 25 and 60, hypotenuse =K
legs 24 and 70, hypotenuse =D
0/14 letters found
Clue 2

Square roots

The bandit ran across a square landing grid, and we had to work backward from its total area to find the exact side length of their footprints.

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
18
9
6
15
24
6
23
T
18
20
19
8
6
10
8
15
25
25
24
19
24
24
16
6
25
15
T
18
T
18
9
6
25
21
6
23
6
sqrt(324) =T
sqrt(81) =H
sqrt(64) =R
sqrt(576) =G
sqrt(256) =L
sqrt(529) =N
sqrt(100) =B
sqrt(36) =E
sqrt(400) =W
sqrt(625) =S
sqrt(225) =A
sqrt(361) =O
sqrt(441) =C
0/13 letters found
Clue 3

Exponents

The rogue used a signal jammer that doubled its power with every extra antenna, forcing us to calculate the exponential strength of the signal.

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
4
128
216
625
256
361
128
25
32
324
100
32
49
128
100
196
27
196
216
125
256
4
T
16
225
81
32
324
4
81
125
256
4
T
16
4^2 =T
14^2 =B
2^8 =G
3^4 =L
18^2 =S
2^2 =H
5^2 =W
2^5 =A
10^2 =D
5^4 =O
15^2 =F
2^7 =E
19^2 =U
7^2 =Z
3^3 =Y
6^3 =R
5^3 =I
0/17 letters found
Clue 4

Order of operations

We found a locked security terminal on the airship deck where we had to solve the nested formulas in the exact sequence to unlock the logbook.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

S
105
45
37
S
105
101
10
112
42
85
37
32
101
6
85
17
42
S
105
10
42
85
37
39
S
105
18
101
42
101
65
101
96
10
79
101
6
17
37
39
93 + 6 × 2 =S
20 + 4 × 3 =G
7 × 5 - 25 =T
2 + 2 × 2 =H
6 × 11 - 21 =U
81 + 5 × 3 =F
9 × 9 - 16 =L
9 + 2 × 4 =I
18 + 4 × 6 =R
23 + 8 × 2 =D
50 + 7 × 5 =A
33 + 2 × 2 =N
10 × 11 - 9 =E
3 × 8 - 6 =W
77 + 5 × 7 =O
61 + 6 × 3 =B
0/16 letters found
Clue 5

Square roots — the last clue

To measure the blast radius of the escape engine, we calculated the square root of the blackened zone to find the safe scanning boundary.

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
sqrt(36) = ?
sqrt(100) = ?
sqrt(121) = ?
sqrt(144) = ?
sqrt(1) = ?
sqrt(25) = ?
sqrt(81) = ?
sqrt(9) = ?
sqrt(64) = ?
sqrt(4) = ?
sqrt(49) = ?
Step 2 — cross out the sentence with each answer
1.The villain charged up their magnetic gloves, then tossed distracting flash flares.
2.The villain activated their gravity boots, then escaped under a stealth cloak.
3.The villain activated their gravity boots, then tossed distracting flash flares.
4.The villain activated their gravity boots, then dropped blinding smoke bombs.
5.The villain charged up their magnetic gloves, then escaped under a stealth cloak.
6.The villain charged up their magnetic gloves, then disabled the guards with a net launcher.
7.The villain unfurled their glider wings, then escaped under a stealth cloak.
8.The villain unfurled their glider wings, then deployed several decoy drones.
9.The villain fired up their steam jetpack, then dropped blinding smoke bombs.
10.The villain charged up their magnetic gloves, then deployed several decoy drones.
11.The villain activated their gravity boots, then disabled the guards with a net launcher.
12.The villain fired their grapple launcher, then tossed distracting flash flares.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 10 math
Math topics
Pythagorean theorem, Square roots, Exponents, Order of operations
Reading level
grades 7-9
Theme
The Sky-Loom Heist — set in The Sky-Islands of Aethelgard
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

More free printable math cases

10th grade worksheetsExponents worksheetsOrder of operations worksheetsSquare roots worksheetsPythagorean theorem worksheetsAll worksheets →
Mystery of the Cloud Peak Pirate
Grade 10
The Case of the Golden Stethoscope
Grade 10
The Great Stethoscope Caper
Grade 10
The Great St. Pete Lab Mystery
Grade 10