Grade 6Reading: grades 5-6MultiplicationRoundingMulti-step word problemsPercentagesDivision
The Case of the Missing Hover-Drive
Someone bypassed the lasers and swiped the experimental Hover-Drive from the Academy vault. The Head Gadget Master needs our best recruits to analyze the clues and catch 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
| Name | Primary Gadget | Special Tool | Writing Hand | Disguise Trace | Secret Foil |
|---|---|---|---|---|---|
| Agent Finn | Rocket Boots | Night Vision Goggles | Left-handed writer | Neon Blue Wig | Spicy Jalapenos |
| Indiana | Grapple Gun | Hacker USB | Right-handed writer | Spiky Green Gel | Slippery Bananas |
| Agent Ben | Spy Drone | Decoy Hologram | Right-handed writer | Silver Glitter | Slippery Bananas |
| Agent Leo | Laser Watch | Hacker USB | Right-handed writer | Spiky Green Gel | Squeaky Toys |
| Agent Chloe | Laser Watch | Hacker USB | Right-handed writer | Neon Blue Wig | Squeaky Toys |
| Agent Mia | Laser Watch | Sonic Whistle | Right-handed writer | Spiky Green Gel | Slippery Bananas |
| Watson | Spy Drone | Decoy Hologram | Left-handed writer | Spiky Green Gel | Slippery Bananas |
| Agent Ava | Laser Watch | Vault Keycard | Left-handed writer | Spiky Green Gel | Squeaky Toys |
| Lara | Rocket Boots | Night Vision Goggles | Right-handed writer | Spiky Green Gel | Squeaky Toys |
| Agent Max | Stealth Cloak | Night Vision Goggles | Right-handed writer | Neon Blue Wig | Spicy Jalapenos |
| Agent Jack | Spy Drone | Decoy Hologram | Left-handed writer | Spiky Green Gel | Spicy Jalapenos |
| Agent Noah | Grapple Gun | Sonic Whistle | Left-handed writer | Spiky Green Gel | Squeaky Toys |
| Agent Maya | Laser Watch | Sonic Whistle | Right-handed writer | Neon Blue Wig | Squeaky Toys |
| Agent Ella | Rocket Boots | Decoy Hologram | Right-handed writer | Spiky Green Gel | Squeaky Toys |
| Sherlock | Spy Drone | Night Vision Goggles | Right-handed writer | Neon Blue Wig | Spicy Jalapenos |
| Agent Sam | Spy Drone | Hacker USB | Left-handed writer | Neon Blue Wig | Spicy Jalapenos |
| Agent Zoe | Rocket Boots | Hacker USB | Left-handed writer | Spiky Green Gel | Squeaky Toys |
| Carmen | Spy Drone | Hacker USB | Right-handed writer | Spiky Green Gel | Squeaky Toys |
| Agent Lily | Stealth Cloak | Vault Keycard | Right-handed writer | Spiky Green Gel | Squeaky Toys |
| Agent Toby | Rocket Boots | Night Vision Goggles | Left-handed writer | Neon Blue Wig | Squeaky Toys |
| Agent Luke | Rocket Boots | Sonic Whistle | Right-handed writer | Spiky Green Gel | Slippery Bananas |
Clue 1
Multiplication facts (1-12)
We found crates of tracking devices stacked in equal rows in the warehouse. Multiply the rows to count the total devices and 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.
N
96
84
N
96
40
9
64
33
54
40
20
40
84
N
96
9
84
9
9
28
24
20
110
24
72
24
30
20
24
56
8 × 12 =N
8 × 7 =D
12 × 7 =O
4 × 5 =S
9 × 8 =R
3 × 10 =U
11 × 10 =W
4 × 6 =E
1 × 9 =G
10 × 4 =I
8 × 8 =H
7 × 4 =L
9 × 6 =V
11 × 3 =T
0/14 letters found
Clue 2
Rounding
The infrared heat scanner is fuzzy and only displays temperature readings rounded to the nearest ten. Round the scanner values to pinpoint the runaway's trail.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
R
900
1700
2000
90
430
90
20
30
3000
300
3000
2000
R
900
1700
4300
110
30
430
90
300
3000
110
110
R
900
Round 886 to the nearest hundredR
Round 93 to the nearest tenH
Round 1,741 to the nearest hundredI
Round 4,273 to the nearest hundredP
Round 33 to the nearest tenN
Round 2,328 to the nearest thousandG
Round 110 to the nearest tenO
Round 2,633 to the nearest thousandD
Round 428 to the nearest tenT
Round 305 to the nearest hundredE
Round 23 to the nearest tenA
0/11 letters found
Clue 3
Multi-step word problems
To unlock the encrypted server room, we must calculate the exact battery drain across several testing stages. Solve this multi-step energy puzzle to retrieve the next file.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
S
54
78
38
66
57
76
8
T
O
8
S
54
There were 109 decoder rings in all. 1 decoder rings were set aside. The rest were shared equally among 2 Academy Squad. How many decoder rings did each get?S
There were 466 decoder rings in all. 4 decoder rings were set aside. The rest were shared equally among 7 Academy Squad. How many decoder rings did each get?E
Agent filled 4 boxes with 6 laser pens each, then found 33 more laser pens. How many laser pens are there in all?A
There were 197 laser pens in all. 1 Academy Squad used 7 laser pens each. The other 5 Academy Squad shared the rest equally. How many laser pens did each of the other Academy Squad get?U
There were 57 laser pens in all. 1 Academy Squad used 9 laser pens each. The other 6 Academy Squad shared the rest equally. How many laser pens did each of the other Academy Squad get?Y
There were 326 decoder rings in all. 14 decoder rings were set aside. The rest were shared equally among 4 Academy Squad. How many decoder rings did each get?Q
Agent earned 4 decoder rings in each of 4 rounds, plus 66 bonus decoder rings. Then 6 decoder rings were lost. How many decoder rings are left?K
0/7 letters found
Clue 4
Percentages
The recovery program has restored a partial image of the suspect, but we need to compute the remaining battery percentage of the backup generator first.
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
45
20
11
23
19
21
29
8
8
27
21
8
15
S
45
20
8
6
23
S
45
22
27
28
3
8
26
8
S
45
23
10% of 450 =S
50% of 40 =P
5% of 220 =I
25% of 84 =G
25% of 88 =O
10% of 190 =Y
75% of 8 =C
25% of 116 =R
40% of 20 =E
25% of 104 =D
10% of 30 =H
10% of 150 =L
10% of 230 =K
50% of 56 =T
20% of 135 =N
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
We must distribute the recovered decoder badges equally among our field agents. Divide the badges to find the final clue hidden in the locker.
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
24 ÷ 3 = ?
15 ÷ 3 = ?
72 ÷ 6 = ?
6 ÷ 2 = ?
81 ÷ 9 = ?
8 ÷ 8 = ?
80 ÷ 8 = ?
4 ÷ 2 = ?
66 ÷ 6 = ?
70 ÷ 10 = ?
8 ÷ 2 = ?
Step 2 — cross out the sentence with each answer
1.The villain blasted over the security gate using rocket boots, then uploaded a virus to the security feed using a hacker usb.
2.The villain blasted over the security gate using rocket boots, then shattered the glass alarms using a sonic whistle.
3.The villain slipped past the cameras using a stealth cloak, then navigated the pitch-black ventilation system with night vision goggles.
4.The villain cut through the window using a laser watch, then navigated the pitch-black ventilation system with night vision goggles.
5.The villain mapped out the ventilation shafts using a spy drone, then uploaded a virus to the security feed using a hacker usb.
6.The villain blasted over the security gate using rocket boots, then tricked the hallway guards with a decoy hologram.
7.The villain slipped past the cameras using a stealth cloak, then shattered the glass alarms using a sonic whistle.
8.The villain cut through the window using a laser watch, then uploaded a virus to the security feed using a hacker usb.
9.The villain mapped out the ventilation shafts using a spy drone, then navigated the pitch-black ventilation system with night vision goggles.
10.The villain mapped out the ventilation shafts using a spy drone, then tricked the hallway guards with a decoy hologram.
11.The villain scaled the elevator shaft using a grapple gun, then bypassed the secure door lock using a vault keycard.
12.The villain slipped past the cameras using a stealth cloak, then bypassed the secure door lock using a vault keycard.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Hover-Drive
Culprit: Agent Ella (Rocket Boots · Decoy Hologram · Right-handed writer · Spiky Green Gel · Squeaky Toys)
- Clue 1 (Multiplication facts (1-12)): "NO NIGHT VISION GOGGLES WERE USED"8 × 12 = 96 (N) · 8 × 7 = 56 (D) · 12 × 7 = 84 (O) · 4 × 5 = 20 (S) · 9 × 8 = 72 (R) · 3 × 10 = 30 (U) · 11 × 10 = 110 (W) · 4 × 6 = 24 (E) · 1 × 9 = 9 (G) · 10 × 4 = 40 (I) · 8 × 8 = 64 (H) · 7 × 4 = 28 (L) · 9 × 6 = 54 (V) · 11 × 3 = 33 (T)
- Clue 2 (Rounding): "RIGHT HANDED GRIP ON THE DOOR"Round 886 to the nearest hundred = 900 (R) · Round 93 to the nearest ten = 90 (H) · Round 1,741 to the nearest hundred = 1700 (I) · Round 4,273 to the nearest hundred = 4300 (P) · Round 33 to the nearest ten = 30 (N) · Round 2,328 to the nearest thousand = 2000 (G) · Round 110 to the nearest ten = 110 (O) · Round 2,633 to the nearest thousand = 3000 (D) · Round 428 to the nearest ten = 430 (T) · Round 305 to the nearest hundred = 300 (E) · Round 23 to the nearest ten = 20 (A)
- Clue 3 (Multi-step word problems): "SQUEAKY TOYS"There were 109 decoder rings in all. 1 decoder rings were set aside. The rest were shared equally among 2 Academy Squad. How many decoder rings did each get? = 54 (S) · There were 466 decoder rings in all. 4 decoder rings were set aside. The rest were shared equally among 7 Academy Squad. How many decoder rings did each get? = 66 (E) · Agent filled 4 boxes with 6 laser pens each, then found 33 more laser pens. How many laser pens are there in all? = 57 (A) · There were 197 laser pens in all. 1 Academy Squad used 7 laser pens each. The other 5 Academy Squad shared the rest equally. How many laser pens did each of the other Academy Squad get? = 38 (U) · There were 57 laser pens in all. 1 Academy Squad used 9 laser pens each. The other 6 Academy Squad shared the rest equally. How many laser pens did each of the other Academy Squad get? = 8 (Y) · There were 326 decoder rings in all. 14 decoder rings were set aside. The rest were shared equally among 4 Academy Squad. How many decoder rings did each get? = 78 (Q) · Agent earned 4 decoder rings in each of 4 rounds, plus 66 bonus decoder rings. Then 6 decoder rings were lost. How many decoder rings are left? = 76 (K)
- Clue 4 (Percentages): "SPIKY GREEN GEL SPECKS ON THE DESK"10% of 450 = 45 (S) · 50% of 40 = 20 (P) · 5% of 220 = 11 (I) · 25% of 84 = 21 (G) · 25% of 88 = 22 (O) · 10% of 190 = 19 (Y) · 75% of 8 = 6 (C) · 25% of 116 = 29 (R) · 40% of 20 = 8 (E) · 25% of 104 = 26 (D) · 10% of 30 = 3 (H) · 10% of 150 = 15 (L) · 10% of 230 = 23 (K) · 50% of 56 = 28 (T) · 20% of 135 = 27 (N)
- Clue 5 (Division facts (1-12)): surviving statement (box 6) → Agent Ella24 ÷ 3 = 8 · 15 ÷ 3 = 5 · 72 ÷ 6 = 12 · 6 ÷ 2 = 3 · 81 ÷ 9 = 9 · 8 ÷ 8 = 1 · 80 ÷ 8 = 10 · 4 ÷ 2 = 2 · 66 ÷ 6 = 11 · 70 ÷ 10 = 7 · 8 ÷ 2 = 4
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Multiplication, Rounding, Multi-step word problems, Percentages, Division
- Reading level
- grades 5-6
- Theme
- The Case of the Missing Hover-Drive — set in the high-tech training labs of the Secret Agent Gadget Academy
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects