Math Mysteries
Grade 5Reading: grades 5-6MultiplicationFractions of a numberOrder of operationsRoundingDivision

The Hover Island Heist

Someone has bypassed the laser grid at the Spy Training Academy and swiped the prototype Shrink Ray! The Chief of Gadgets needs your team of elite junior recruits to crack the case. Examine the clues, solve the math puzzles, and identify the rogue agent before they escape the island!

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NamePrimary GadgetBackup GearDominant HandDisguise WigSecurity Vulnerability
Juni CortezSmoke BombsDecoy ProjectorLeft HandedBright OrangeMagnet Trap
Lara CroftStealth CloakHacking PadRight HandedNeon BlueBright Light
Sterling ArcherLaser WatchNight VisionLeft HandedSilver ChromeMagnet Trap
Alex RiderJetpack BootsNight VisionLeft HandedNeon BlueMagnet Trap
Johnny EnglishSmoke BombsHacking PadLeft HandedSilver ChromeMagnet Trap
Encyclopedia BrownLaser WatchDrone ControllerRight HandedSilver ChromeMagnet Trap
Agent SimmonsJetpack BootsNight VisionRight HandedSilver ChromeBright Light
Inspector GadgetJetpack BootsHacking PadLeft HandedSilver ChromeMagnet Trap
Ethan HuntStealth CloakHacking PadRight HandedNeon BlueMagnet Trap
Kim PossibleJetpack BootsNight VisionRight HandedNeon BlueMagnet Trap
Carmen CortezStealth CloakDecoy ProjectorLeft HandedSilver ChromeBright Light
Spy Kid LeoLaser WatchDrone ControllerLeft HandedNeon BlueBright Light
MacGyverLaser WatchDecoy ProjectorLeft HandedNeon BlueMagnet Trap
Sam FisherGrappling HookNight VisionLeft HandedBright OrangeStatic Shock
Austin PowersLaser WatchDrone ControllerLeft HandedSilver ChromeMagnet Trap
Nancy DrewGrappling HookDrone ControllerRight HandedBright OrangeStatic Shock
Perry PlatypusGrappling HookNight VisionRight HandedBright OrangeBright Light
Harriet SpyStealth CloakDrone ControllerLeft HandedSilver ChromeBright Light
Natasha RomanoffGrappling HookNight VisionLeft HandedSilver ChromeStatic Shock
James BondJetpack BootsDecoy ProjectorLeft HandedSilver ChromeMagnet Trap
Sherlock HolmesLaser WatchNight VisionRight HandedNeon BlueMagnet Trap
Clue 1

Multiplication facts (1-12)

We intercepted a message hidden in a shipment of gadgets. The cargo crates are arranged in equal rows. Multiply the rows of gear to decode the first encryption key!

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

N
60
100
21
63
64
100
45
28
77
100
121
63
64
4
100
77
48
66
36
18
36
63
21
84
45
4
90
63
4
66
77
8
63
4
10 × 6 =N
10 × 10 =O
4 × 12 =W
5 × 9 =Y
11 × 7 =R
7 × 9 =E
8 × 8 =C
7 × 3 =D
10 × 9 =H
2 × 2 =T
2 × 9 =U
6 × 11 =A
12 × 3 =S
4 × 7 =P
11 × 11 =J
12 × 7 =B
1 × 8 =G
0/17 letters found
Clue 2

Fractions of a number

The security logs are partially corrupted. We need to calculate a specific fraction of the remaining server files to reboot the backup cameras and see who ran past.

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
31
34
38
26
22
T
31
15
7
39
38
15
26
9
19
38
10
T
31
34
17
22
39
38
39
3/6 of 62 =T
5/10 of 38 =L
4/8 of 34 =A
4/6 of 57 =E
6/10 of 25 =R
5/10 of 52 =I
3/10 of 130 =D
4/8 of 14 =U
5/10 of 18 =S
1/5 of 110 =N
1/5 of 50 =F
2/8 of 136 =H
0/12 letters found
Clue 3

Order of operations

To override the locked vault door, we must solve a security sequence. Solve the multi-step math formula in the correct order to reveal the override 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
55
8
56
T
55
34
17
18
56
T
55
61
34
19
19
T
55
73
20
20
56
43
36
69
34
60
34
18
77
56
T
55
T
55
17
34
20
43 + 4 × 3 =T
12 × 7 - 28 =E
10 + 5 × 2 =P
9 × 7 - 2 =W
10 × 9 - 13 =N
7 + 2 × 6 =S
4 × 11 - 26 =G
9 × 8 - 3 =Y
8 × 8 - 30 =A
9 × 3 - 10 =R
52 + 2 × 4 =M
22 + 2 × 7 =B
6 × 4 - 16 =H
8 × 10 - 7 =O
27 + 8 × 2 =D
0/15 letters found
Clue 4

Rounding

Our tracking radar is fuzzy. It only displays the suspect's getaway speed rounded to the nearest ten. Round the signal strength to pinpoint their exact location.

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
30
3000
300
5000
110
1300
110
5000
130
200
290
T
30
T
30
300
1300
130
1100
20
70
300
5000
170
3000
5000
290
1700
300
130
T
30
5000
110
9000
1300
130
Round 29 to the nearest tenT
Round 285 to the nearest hundredE
Round 1,679 to the nearest hundredM
Round 133 to the nearest tenS
Round 232 to the nearest hundredP
Round 1,344 to the nearest hundredD
Round 174 to the nearest tenC
Round 16 to the nearest tenL
Round 291 to the nearest tenO
Round 113 to the nearest tenA
Round 8,811 to the nearest thousandN
Round 5,240 to the nearest thousandR
Round 3,064 to the nearest thousandH
Round 72 to the nearest tenV
Round 1,123 to the nearest hundredI
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

The escape route splits into several secret paths. Divide the total footprints evenly among our search teams so we can cover every exit at the same time.

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
7 ÷ 7 = ?
72 ÷ 12 = ?
30 ÷ 3 = ?
33 ÷ 3 = ?
48 ÷ 4 = ?
16 ÷ 8 = ?
12 ÷ 3 = ?
21 ÷ 7 = ?
64 ÷ 8 = ?
14 ÷ 2 = ?
15 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain escapes the training room behind a cloud of smoke bombs, then cracks the safe using a hacking pad.
2.The villain zips past the guards using a laser watch, then confuses the security guards with a decoy projector.
3.The villain scales the high academy wall with a grappling hook, then snaps photos of the plans with a spy camera.
4.The villain scales the high academy wall with a grappling hook, then confuses the security guards with a decoy projector.
5.The villain slips through the vault door wearing a stealth cloak, then navigates the dark hallway with night vision.
6.The villain zips past the guards using a laser watch, then navigates the dark hallway with night vision.
7.The villain blasts over the laser grid in jetpack boots, then guides a flying drone controller to grab the key.
8.The villain scales the high academy wall with a grappling hook, then cracks the safe using a hacking pad.
9.The villain zips past the guards using a laser watch, then guides a flying drone controller to grab the key.
10.The villain blasts over the laser grid in jetpack boots, then cracks the safe using a hacking pad.
11.The villain escapes the training room behind a cloud of smoke bombs, then guides a flying drone controller to grab the key.
12.The villain slips through the vault door wearing a stealth cloak, then snaps photos of the plans with a spy camera.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 5 math
Math topics
Multiplication, Fractions of a number, Order of operations, Rounding, Division
Reading level
grades 5-6
Theme
The Hover Island Heist — set in The Spy Training Academy on Hover Island
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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