🤖 RobotsGrade 4Reading: grades 3-4MultiplicationRoundingAdditionSubtractionDivision
The Mystery of the Glitch Bot
Someone scrambled the master schematics at Gearopolis Repair Bay! Chief Mechanic Maya needs your help decoding encrypted logs to find the Rogue Bot before the big robot parade.
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 | Main Tool | Gadget | Antenna Side | Head Wiring | System Vulnerability |
|---|---|---|---|---|---|
| Gears | Sonic Blaster | Turbo Boost | Right Antenna | Fiber Cables | Rust Powder |
| Copper | Laser Welder | Thermal Shield | Left Antenna | Fiber Cables | Rust Powder |
| Sparky | Plasma Cutter | Turbo Boost | Left Antenna | Steel Mesh | Magnet Attack |
| Rossum | Plasma Cutter | Thermal Shield | Right Antenna | Fiber Cables | Rust Powder |
| Asimov | Rocket Thruster | Thermal Shield | Left Antenna | Steel Mesh | Rust Powder |
| Tesla | Magnetic Claw | Oil Cannon | Right Antenna | Steel Mesh | Magnet Attack |
| Ada | Sonic Blaster | Turbo Boost | Left Antenna | Steel Mesh | Rust Powder |
| Orbit | Plasma Cutter | Oil Cannon | Right Antenna | Copper Wires | Water Splash |
| Rusty | Plasma Cutter | Oil Cannon | Right Antenna | Steel Mesh | Rust Powder |
| Edison | Rocket Thruster | Oil Cannon | Left Antenna | Fiber Cables | Rust Powder |
| Radar | Plasma Cutter | Turbo Boost | Left Antenna | Steel Mesh | Rust Powder |
| Bolt | Rocket Thruster | Cloaking Chip | Left Antenna | Steel Mesh | Rust Powder |
| Widget | Magnetic Claw | Cloaking Chip | Left Antenna | Steel Mesh | Magnet Attack |
| Sprocket | Laser Welder | Solar Panel | Left Antenna | Copper Wires | Magnet Attack |
| Isaac | Magnetic Claw | Oil Cannon | Left Antenna | Copper Wires | Rust Powder |
| Titan | Laser Welder | Oil Cannon | Left Antenna | Steel Mesh | Rust Powder |
| Turing | Laser Welder | Oil Cannon | Right Antenna | Copper Wires | Magnet Attack |
| Beep | Sonic Blaster | Solar Panel | Left Antenna | Fiber Cables | Rust Powder |
| Norbert | Laser Welder | Cloaking Chip | Left Antenna | Steel Mesh | Magnet Attack |
| Circuit | Magnetic Claw | Thermal Shield | Right Antenna | Steel Mesh | Rust Powder |
| Axel | Plasma Cutter | Thermal Shield | Left Antenna | Steel Mesh | Rust Powder |
Clue 1
Multiplication facts (1-12)
Maya finds stacks of microchips organized in equal rows across the lab bench.
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
54
110
40
90
4
1
45
40
60
4
T
54
96
4
40
16
81
4
T
54
45
16
40
T
54
45
90
60
4
60
4
4
16
T
54
9 × 6 =T
2 × 8 =S
4 × 1 =O
11 × 10 =H
9 × 9 =N
10 × 9 =R
10 × 4 =E
12 × 5 =B
1 × 1 =G
12 × 8 =D
9 × 5 =U
0/11 letters found
Clue 2
Rounding
A flickering sensor screen shows a loose energy count rounded to the nearest hundred.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
170
290
2900
4300
200
2000
70
70
70
A
170
290
A
170
7000
90
4300
7000
2000
200
5000
2900
200
2300
2900
4300
70
3000
2000
700
4300
A
170
200
4300
2000
200
200
A
170
Round 173 to the nearest tenA
Round 74 to the nearest tenS
Round 87 to the nearest tenO
Round 4,252 to the nearest hundredT
Round 7,236 to the nearest thousandB
Round 673 to the nearest hundredF
Round 5,323 to the nearest thousandD
Round 2,440 to the nearest thousandE
Round 2,955 to the nearest thousandL
Round 2,917 to the nearest hundredI
Round 218 to the nearest hundredN
Round 291 to the nearest tenW
Round 2,293 to the nearest hundredG
0/13 letters found
Clue 3
Addition
You combine the battery counts from three storage boxes to check total power reserves.
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
8574
6436
4418
2129
6596
T
8574
2365
6083
4418
4418
9500
7857
8519
6436
6164
5741
4124
5728
7856
T
8574
5015
6596
7227
5741
4418
4124
6596
7857
9500
T
8574
7856
3772
6596
9500
7857
T
8574
7856
4946 + 3628 =T
1604 + 3411 =P
2561 + 3603 =A
2369 + 5488 =N
3050 + 4806 =S
2116 + 3625 =D
1095 + 1034 =B
2913 + 4314 =W
4068 + 5432 =I
2200 + 3528 =U
1324 + 2800 =R
2882 + 1536 =E
1937 + 1835 =J
2388 + 4208 =O
3607 + 4912 =G
2230 + 4206 =H
1481 + 884 =F
3839 + 2244 =L
0/18 letters found
Clue 4
Subtraction
Comparing energy levels before and after the glitch reveals how much power was drained.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
1793
4828
8459
5832
A
1793
5071
1780
5932
4828
1715
4629
4629
2439
5607
4629
4828
1540
4662
A
1793
4828
8459
A
1793
5259
3962
1540
1715
1780
4285
A
1793
4285
A
1793
2588
2439
5707 - 3914 =A
6485 - 3897 =I
9286 - 3354 =F
5622 - 363 =U
3186 - 747 =L
8113 - 2281 =R
5878 - 1249 =E
9223 - 3616 =M
3284 - 1504 =O
8830 - 3759 =P
9081 - 622 =C
6856 - 2571 =N
8422 - 4460 =G
2235 - 695 =H
4651 - 2936 =T
6298 - 1470 =S
8901 - 4239 =W
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
The mechanic splits extra spare fuses equally among the remaining repair docks.
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 ÷ 1 = ?
80 ÷ 8 = ?
63 ÷ 7 = ?
20 ÷ 4 = ?
5 ÷ 5 = ?
44 ÷ 11 = ?
33 ÷ 11 = ?
56 ÷ 7 = ?
24 ÷ 2 = ?
12 ÷ 6 = ?
44 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain blasted a sonic beam, then turned on a cloaking chip.
2.The villain blasted a sonic beam, then squirted an oil cannon.
3.The villain sliced with a plasma cutter, then turned on a cloaking chip.
4.The villain fired a laser welder, then charged a solar panel.
5.The villain fired a laser welder, then raised a thermal shield.
6.The villain zoomed on a rocket thruster, then turned on a cloaking chip.
7.The villain sliced with a plasma cutter, then raised a thermal shield.
8.The villain zoomed on a rocket thruster, then charged a solar panel.
9.The villain zoomed on a rocket thruster, then raised a thermal shield.
10.The villain fired a laser welder, then squirted an oil cannon.
11.The villain grabbed with a magnetic claw, then activated a turbo boost.
12.The villain grabbed with a magnetic claw, then turned on a cloaking chip.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Glitch Bot
Culprit: Bolt (Rocket Thruster · Cloaking Chip · Left Antenna · Steel Mesh · Rust Powder)
- Clue 1 (Multiplication facts (1-12)): "THE ROGUE BOT DOES NOT USE TURBO BOOST"9 × 6 = 54 (T) · 2 × 8 = 16 (S) · 4 × 1 = 4 (O) · 11 × 10 = 110 (H) · 9 × 9 = 81 (N) · 10 × 9 = 90 (R) · 10 × 4 = 40 (E) · 12 × 5 = 60 (B) · 1 × 1 = 1 (G) · 12 × 8 = 96 (D) · 9 × 5 = 45 (U)
- Clue 2 (Rounding): "A WITNESS SAW A BOT BENDING ITS LEFT ANTENNA"Round 173 to the nearest ten = 170 (A) · Round 74 to the nearest ten = 70 (S) · Round 87 to the nearest ten = 90 (O) · Round 4,252 to the nearest hundred = 4300 (T) · Round 7,236 to the nearest thousand = 7000 (B) · Round 673 to the nearest hundred = 700 (F) · Round 5,323 to the nearest thousand = 5000 (D) · Round 2,440 to the nearest thousand = 2000 (E) · Round 2,955 to the nearest thousand = 3000 (L) · Round 2,917 to the nearest hundred = 2900 (I) · Round 218 to the nearest hundred = 200 (N) · Round 291 to the nearest ten = 290 (W) · Round 2,293 to the nearest hundred = 2300 (G)
- Clue 3 (Addition): "THE BOT FLEEING HAD RUST POWDER ON ITS JOINTS"4946 + 3628 = 8574 (T) · 1604 + 3411 = 5015 (P) · 2561 + 3603 = 6164 (A) · 2369 + 5488 = 7857 (N) · 3050 + 4806 = 7856 (S) · 2116 + 3625 = 5741 (D) · 1095 + 1034 = 2129 (B) · 2913 + 4314 = 7227 (W) · 4068 + 5432 = 9500 (I) · 2200 + 3528 = 5728 (U) · 1324 + 2800 = 4124 (R) · 2882 + 1536 = 4418 (E) · 1937 + 1835 = 3772 (J) · 2388 + 4208 = 6596 (O) · 3607 + 4912 = 8519 (G) · 2230 + 4206 = 6436 (H) · 1481 + 884 = 2365 (F) · 3839 + 2244 = 6083 (L)
- Clue 4 (Subtraction): "A SCRAP OF STEEL MESH WAS CAUGHT ON A NAIL"5707 - 3914 = 1793 (A) · 6485 - 3897 = 2588 (I) · 9286 - 3354 = 5932 (F) · 5622 - 363 = 5259 (U) · 3186 - 747 = 2439 (L) · 8113 - 2281 = 5832 (R) · 5878 - 1249 = 4629 (E) · 9223 - 3616 = 5607 (M) · 3284 - 1504 = 1780 (O) · 8830 - 3759 = 5071 (P) · 9081 - 622 = 8459 (C) · 6856 - 2571 = 4285 (N) · 8422 - 4460 = 3962 (G) · 2235 - 695 = 1540 (H) · 4651 - 2936 = 1715 (T) · 6298 - 1470 = 4828 (S) · 8901 - 4239 = 4662 (W)
- Clue 5 (Division facts (1-12)): surviving statement (box 6) → Bolt7 ÷ 1 = 7 · 80 ÷ 8 = 10 · 63 ÷ 7 = 9 · 20 ÷ 4 = 5 · 5 ÷ 5 = 1 · 44 ÷ 11 = 4 · 33 ÷ 11 = 3 · 56 ÷ 7 = 8 · 24 ÷ 2 = 12 · 12 ÷ 6 = 2 · 44 ÷ 4 = 11
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Multiplication, Rounding, Addition, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Mystery of the Glitch Bot — set in Gearopolis Repair Bay
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects