🤖 RobotsGrade 6Reading: grades 5-6PercentagesExponentsOrder of operationsMultiplicationDivision
The Gearshift Grid Caper
Someone breached the RoboCity Repair Hangar and swapped the master blueprints for the city grid! The detective team must scan the suspect log and track down the rogue bot before the grid reboots.
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 | Secondary Tool | Status Light | Frame Finish | System Glitch |
|---|---|---|---|---|---|
| Sebastian Thrun | EMP Blast | Grappling Wire | Left Light On | Neon Wiring | Water Spray |
| Ayanna Howard | Laser Torch | Grappling Wire | Right Light On | Copper Rust | Magnet Wand |
| Joseph Engelberger | Laser Torch | Cyber Claw | Left Light On | Chrome Plating | Magnet Wand |
| Red Whittaker | Plasma Shield | Radar Dish | Right Light On | Copper Rust | Magnet Wand |
| Karel Capek | Plasma Shield | Rocket Boots | Right Light On | Copper Rust | Water Spray |
| Nikola Tesla | Laser Torch | Cyber Claw | Right Light On | Copper Rust | Water Spray |
| Cynthia Breazeal | Sonic Screech | Rocket Boots | Right Light On | Neon Wiring | Magnet Wand |
| Alan Turing | Plasma Shield | Grappling Wire | Left Light On | Chrome Plating | Static Shock |
| Isaac Asimov | Graviton Beam | Radar Dish | Left Light On | Copper Rust | Magnet Wand |
| Norbert Wiener | EMP Blast | Radar Dish | Left Light On | Neon Wiring | Water Spray |
| Maja Mataric | Laser Torch | Cyber Claw | Right Light On | Neon Wiring | Water Spray |
| Grace Hopper | Plasma Shield | Cyber Claw | Left Light On | Neon Wiring | Water Spray |
| Arthur Clarke | EMP Blast | Cyber Claw | Left Light On | Chrome Plating | Water Spray |
| Hiroshi Ishiguro | Laser Torch | Radar Dish | Right Light On | Copper Rust | Magnet Wand |
| James Watt | Graviton Beam | Grappling Wire | Right Light On | Neon Wiring | Static Shock |
| George Devol | Laser Torch | Radar Dish | Left Light On | Neon Wiring | Magnet Wand |
| Hedy Lamarr | EMP Blast | Drill Arm | Right Light On | Copper Rust | Magnet Wand |
| Victor Scheinman | Laser Torch | Grappling Wire | Left Light On | Chrome Plating | Static Shock |
| Takeo Kanade | Sonic Screech | Rocket Boots | Right Light On | Copper Rust | Water Spray |
| Raffaello D Andrea | Graviton Beam | Cyber Claw | Left Light On | Copper Rust | Water Spray |
| Rodney Brooks | Laser Torch | Cyber Claw | Right Light On | Copper Rust | Magnet Wand |
Clue 1
Percentages
The central computer shows a percentage breakdown of power drops across the hangar during the break in.
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
1
37
5
17
10
5
35
12
34
41
29
T
1
32
29
5
17
10
29
T
1
26
17
5
44
15
35
22
22
18
6
10
44
33
6
15
5
10% of 10 =T
20% of 175 =A
10% of 290 =O
10% of 180 =L
10% of 60 =I
25% of 60 =R
40% of 110 =G
25% of 128 =D
20% of 185 =H
50% of 52 =U
20% of 165 =W
5% of 100 =E
10% of 170 =S
25% of 164 =B
25% of 136 =Y
60% of 20 =K
20% of 50 =N
40% of 55 =P
0/18 letters found
Clue 2
Exponents
A secondary power core uses exponent growth tables to measure energy surges recorded near the master console.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
400
243
64
361
125
216
216
125
216
216
256
W
400
256
4
243
343
81
64
25
243
343
81
64
36
361
256
64
64
81
125
216
225
125
361
125
20^2 =W
16^2 =A
5^2 =L
6^2 =O
15^2 =C
19^2 =N
5^3 =E
2^2 =R
9^2 =H
6^3 =S
8^2 =T
3^5 =I
7^3 =G
0/13 letters found
Clue 3
Order of operations
The security console requires solving an order of operations sequence to unlock the surveillance tape.
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
37
47
73
12
44
T
37
49
6
58
58
T
37
44
14
14
73
67
64
44
35
67
12
29
40
6
28
23
73
T
37
49
6
23
67
25 + 4 × 3 =T
12 × 4 - 4 =O
15 + 8 × 4 =H
12 × 8 - 29 =D
9 + 5 × 8 =W
12 × 8 - 23 =E
12 × 2 - 18 =A
50 + 2 × 7 =C
7 × 10 - 12 =S
4 × 11 - 16 =G
5 × 10 - 15 =L
3 + 3 × 3 =B
7 × 6 - 2 =M
10 × 5 - 21 =Y
6 × 6 - 13 =N
4 + 2 × 5 =P
0/16 letters found
Clue 4
Multiplication facts (1-12)
The storage bay supervisor multiplied rows of metal crates to confirm how many parts the intruder bypassed.
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
90
8
48
120
28
48
55
48
15
3
120
28
64
132
48
33
48
77
12
55
28
64
60
60
48
33
33
22
120
T
90
9 × 10 =T
11 × 5 =N
11 × 12 =V
8 × 6 =E
11 × 7 =D
8 × 8 =O
2 × 11 =U
6 × 10 =P
1 × 3 =A
5 × 3 =W
4 × 7 =C
4 × 3 =I
11 × 3 =R
10 × 12 =S
8 × 1 =H
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
The hangar mechanic divided leftover oil canisters equally among the repair units to track missing inventory.
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
60 ÷ 6 = ?
27 ÷ 3 = ?
7 ÷ 1 = ?
12 ÷ 1 = ?
44 ÷ 4 = ?
60 ÷ 12 = ?
21 ÷ 7 = ?
96 ÷ 12 = ?
42 ÷ 7 = ?
20 ÷ 5 = ?
10 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain fired a laser torch, then swiped supplies with a cyber claw.
2.The villain triggered an emp blast, then scanned the area with a radar dish.
3.The villain triggered an emp blast, then escaped using a grappling wire.
4.The villain activated a graviton beam, then bored a hole using a drill arm.
5.The villain emitted a sonic screech, then scanned the area with a radar dish.
6.The villain deployed a plasma shield, then bored a hole using a drill arm.
7.The villain fired a laser torch, then scanned the area with a radar dish.
8.The villain activated a graviton beam, then zoomed off with rocket boots.
9.The villain deployed a plasma shield, then scanned the area with a radar dish.
10.The villain triggered an emp blast, then bored a hole using a drill arm.
11.The villain triggered an emp blast, then swiped supplies with a cyber claw.
12.The villain fired a laser torch, then zoomed off with rocket boots.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Gearshift Grid Caper
Culprit: Rodney Brooks (Laser Torch · Cyber Claw · Right Light On · Copper Rust · Magnet Wand)
- Clue 1 (Percentages): "THE SNEAKY BOT DOES NOT USE GRAPPLING WIRE"10% of 10 = 1 (T) · 20% of 175 = 35 (A) · 10% of 290 = 29 (O) · 10% of 180 = 18 (L) · 10% of 60 = 6 (I) · 25% of 60 = 15 (R) · 40% of 110 = 44 (G) · 25% of 128 = 32 (D) · 20% of 185 = 37 (H) · 50% of 52 = 26 (U) · 20% of 165 = 33 (W) · 5% of 100 = 5 (E) · 10% of 170 = 17 (S) · 25% of 164 = 41 (B) · 25% of 136 = 34 (Y) · 60% of 20 = 12 (K) · 20% of 50 = 10 (N) · 40% of 55 = 22 (P)
- Clue 2 (Exponents): "WITNESSES SAW A RIGHT LIGHT ON AT THE SCENE"20^2 = 400 (W) · 16^2 = 256 (A) · 5^2 = 25 (L) · 6^2 = 36 (O) · 15^2 = 225 (C) · 19^2 = 361 (N) · 5^3 = 125 (E) · 2^2 = 4 (R) · 9^2 = 81 (H) · 6^3 = 216 (S) · 8^2 = 64 (T) · 3^5 = 243 (I) · 7^3 = 343 (G)
- Clue 3 (Order of operations): "THE BOT WAS STOPPED COLD BY MAGNET WAND"25 + 4 × 3 = 37 (T) · 12 × 4 - 4 = 44 (O) · 15 + 8 × 4 = 47 (H) · 12 × 8 - 29 = 67 (D) · 9 + 5 × 8 = 49 (W) · 12 × 8 - 23 = 73 (E) · 12 × 2 - 18 = 6 (A) · 50 + 2 × 7 = 64 (C) · 7 × 10 - 12 = 58 (S) · 4 × 11 - 16 = 28 (G) · 5 × 10 - 15 = 35 (L) · 3 + 3 × 3 = 12 (B) · 7 × 6 - 2 = 40 (M) · 10 × 5 - 21 = 29 (Y) · 6 × 6 - 13 = 23 (N) · 4 + 2 × 5 = 14 (P)
- Clue 4 (Multiplication facts (1-12)): "THE SCENE WAS COVERED IN COPPER RUST"9 × 10 = 90 (T) · 11 × 5 = 55 (N) · 11 × 12 = 132 (V) · 8 × 6 = 48 (E) · 11 × 7 = 77 (D) · 8 × 8 = 64 (O) · 2 × 11 = 22 (U) · 6 × 10 = 60 (P) · 1 × 3 = 3 (A) · 5 × 3 = 15 (W) · 4 × 7 = 28 (C) · 4 × 3 = 12 (I) · 11 × 3 = 33 (R) · 10 × 12 = 120 (S) · 8 × 1 = 8 (H)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Rodney Brooks60 ÷ 6 = 10 · 27 ÷ 3 = 9 · 7 ÷ 1 = 7 · 12 ÷ 1 = 12 · 44 ÷ 4 = 11 · 60 ÷ 12 = 5 · 21 ÷ 7 = 3 · 96 ÷ 12 = 8 · 42 ÷ 7 = 6 · 20 ÷ 5 = 4 · 10 ÷ 5 = 2
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Percentages, Exponents, Order of operations, Multiplication, Division
- Reading level
- grades 5-6
- Theme
- The Gearshift Grid Caper — set in RoboCity Repair Hangar
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects