🤖 RobotsGrade 5Reading: grades 3-4Fractions of a numberBar modelsOrder of operationsMultiplication
The Rogue Robot Rampage
A sneaky robot went haywire and locked down the Metropolis Cyber Lab! Figure out which bot went rogue before all the lab power is drained.
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 | Dominant Hand | Head Wires | Disabler |
|---|---|---|---|---|---|
| Beacon | Sonic Blaster | Night Vision | Left-Handed | Silver Wires | Rust Spray |
| Byte | EMP Launcher | Smoke Screen | Left-Handed | Silver Wires | Water Splash |
| Matrix | Plasma Shield | Night Vision | Right-Handed | Silver Wires | Magnet Zap |
| Sprocket | Sonic Blaster | Night Vision | Left-Handed | Neon Cables | Rust Spray |
| Rust-E | Sonic Blaster | Rocket Boots | Right-Handed | Silver Wires | Water Splash |
| Atlas | Sonic Blaster | Rocket Boots | Left-Handed | Copper Coils | Magnet Zap |
| Nano | Plasma Shield | Rocket Boots | Right-Handed | Silver Wires | Magnet Zap |
| Dynamo | EMP Launcher | Night Vision | Left-Handed | Silver Wires | Magnet Zap |
| Gears | EMP Launcher | Magnet Arm | Left-Handed | Silver Wires | Water Splash |
| Vector | EMP Launcher | Grappling Hook | Left-Handed | Neon Cables | Rust Spray |
| Pixel | Turbo Booster | Rocket Boots | Right-Handed | Neon Cables | Rust Spray |
| Digit | Laser Cutter | Grappling Hook | Right-Handed | Silver Wires | Water Splash |
| Socket | Sonic Blaster | Smoke Screen | Left-Handed | Silver Wires | Water Splash |
| Bolt | EMP Launcher | Grappling Hook | Right-Handed | Neon Cables | Magnet Zap |
| Turbo | Plasma Shield | Smoke Screen | Right-Handed | Silver Wires | Water Splash |
| Radar | Plasma Shield | Magnet Arm | Right-Handed | Silver Wires | Water Splash |
| Circuit | Laser Cutter | Night Vision | Left-Handed | Silver Wires | Rust Spray |
| Micro | Turbo Booster | Rocket Boots | Left-Handed | Silver Wires | Water Splash |
| Cyber | EMP Launcher | Smoke Screen | Left-Handed | Copper Coils | Water Splash |
| Gizmo | Sonic Blaster | Grappling Hook | Left-Handed | Silver Wires | Water Splash |
| Volt | Plasma Shield | Night Vision | Right-Handed | Neon Cables | Magnet Zap |
Clue 1
Fractions of a number
Only a fraction of the digital log files survived the hack. Calculate the remaining file count to decrypt Clue One.
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
13
31
4
25
15
6
6
20
15
9
29
24
4
40
9
24
T
13
23
40
4
20
26
20
39
9
4
T
13
20
34
26
1/4 of 52 =T
1/3 of 69 =U
1/3 of 87 =D
4/8 of 80 =S
1/8 of 160 =A
3/6 of 8 =E
4/8 of 18 =N
3/10 of 130 =G
4/8 of 12 =L
1/5 of 155 =H
3/6 of 30 =I
4/8 of 50 =V
2/8 of 136 =R
2/3 of 39 =M
3/8 of 64 =O
0/15 letters found
Clue 2
Bar model word problems
The power grid monitor uses bar models to show energy surges. Compare the bar lengths to unlock Clue Two.
Draw a bar model to solve each word problem. Its answer reveals a letter — write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
L
119
55
29
127
96
125
47
D
55
D
Chief Mechanic Spark shares 238 fuses equally among 2 teams. How many fuses does each team get?
draw a bar model
Answer:→L
The red team has 148 gears and the blue team has 21 gears. How many more gears does the red team have?
draw a bar model
Answer:→T
One group collected 44 batteries and another group collected 3 batteries. How many batteries in all?
draw a bar model
Answer:→N
One group collected 46 gears and another group collected 50 gears. How many gears in all?
draw a bar model
Answer:→H
There were 40 batteries in all. 11 batteries were used. How many batteries are left?
draw a bar model
Answer:→F
There were 150 gears in all. 25 gears were used. How many gears are left?
draw a bar model
Answer:→A
Chief Mechanic Spark has 11 times as many fuses as a teammate. The teammate has 5 fuses. How many fuses does Chief Mechanic Spark have?
draw a bar model
Answer:→E
0/7 letters found
Clue 3
Order of operations
To override the locked door, you must follow the strict security reboot order of operations. Solve it for Clue Three.
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
74
26
19
52
19
33
52
47
43
46
25
52
52
26
47
43
T
74
19
50
23
29
46
25
T
74
19
43
52
66
68
25
52
26
2 + 9 × 8 =T
12 × 5 - 14 =W
29 + 2 × 9 =O
7 × 10 - 20 =D
4 × 9 - 17 =E
7 × 12 - 18 =P
40 + 2 × 6 =S
6 × 5 - 1 =Y
44 + 3 × 8 =L
7 + 4 × 4 =B
31 + 3 × 4 =R
24 + 3 × 3 =N
12 × 3 - 11 =A
16 + 2 × 5 =H
0/14 letters found
Clue 4
Multiplication facts (1-12)
The storage bay holds equal rows of charging units. Multiply the stacks to crack Clue Four.
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
3
4
32
56
55
7
70
4
7
55
S
3
70
55
7
55
S
3
96
22
121
121
55
8
84
96
48
9
55
8
84
84
7
70
22
110
1 × 3 =S
10 × 11 =Y
6 × 8 =T
8 × 7 =V
4 × 8 =L
1 × 9 =H
5 × 11 =E
11 × 11 =G
12 × 7 =O
1 × 7 =R
7 × 10 =W
8 × 1 =D
12 × 8 =N
2 × 2 =I
2 × 11 =A
0/15 letters found
Clue 5
Fractions of a number — the last clue
A fraction of the memory chips hold real evidence while the rest are corrupt. Calculate the useful portion for Clue Five.
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
2/10 of 55 = ?
3/10 of 10 = ?
3/6 of 16 = ?
2/4 of 2 = ?
3/6 of 14 = ?
2/6 of 30 = ?
1/8 of 48 = ?
4/6 of 6 = ?
2/6 of 15 = ?
1/2 of 4 = ?
3/5 of 15 = ?
Step 2 — cross out the sentence with each answer
1.The villain sliced through security gates, then swung across the ceiling rafters.
2.The villain sped past the cameras, then snatched metal gears from afar.
3.The villain sped past the cameras, then zoomed away on rockets.
4.The villain sliced through security gates, then snatched metal gears from afar.
5.The villain blocked the guard lasers, then snatched metal gears from afar.
6.The villain blocked the guard lasers, then disappeared in thick fog.
7.The villain sliced through security gates, then disappeared in thick fog.
8.The villain blasted the audio alarm, then swung across the ceiling rafters.
9.The villain zapped the computer mainframes, then swung across the ceiling rafters.
10.The villain zapped the computer mainframes, then spotted clues in total darkness.
11.The villain zapped the computer mainframes, then disappeared in thick fog.
12.The villain blasted the audio alarm, then disappeared in thick fog.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Rogue Robot Rampage
Culprit: Socket (Sonic Blaster · Smoke Screen · Left-Handed · Silver Wires · Water Splash)
- Clue 1 (Fractions of a number): "THE VILLAIN DOES NOT USE A MAGNET ARM"1/4 of 52 = 13 (T) · 1/3 of 69 = 23 (U) · 1/3 of 87 = 29 (D) · 4/8 of 80 = 40 (S) · 1/8 of 160 = 20 (A) · 3/6 of 8 = 4 (E) · 4/8 of 18 = 9 (N) · 3/10 of 130 = 39 (G) · 4/8 of 12 = 6 (L) · 1/5 of 155 = 31 (H) · 3/6 of 30 = 15 (I) · 4/8 of 50 = 25 (V) · 2/8 of 136 = 34 (R) · 2/3 of 39 = 26 (M) · 3/8 of 64 = 24 (O)
- Clue 2 (Bar model word problems): "LEFT HANDED"Chief Mechanic Spark shares 238 fuses equally among 2 teams. How many fuses does each team get? = 119 (L) · The red team has 148 gears and the blue team has 21 gears. How many more gears does the red team have? = 127 (T) · One group collected 44 batteries and another group collected 3 batteries. How many batteries in all? = 47 (N) · One group collected 46 gears and another group collected 50 gears. How many gears in all? = 96 (H) · There were 40 batteries in all. 11 batteries were used. How many batteries are left? = 29 (F) · There were 150 gears in all. 25 gears were used. How many gears are left? = 125 (A) · Chief Mechanic Spark has 11 times as many fuses as a teammate. The teammate has 5 fuses. How many fuses does Chief Mechanic Spark have? = 55 (E)
- Clue 3 (Order of operations): "THE SENSOR WAS SHORTED BY WATER SPLASH"2 + 9 × 8 = 74 (T) · 12 × 5 - 14 = 46 (W) · 29 + 2 × 9 = 47 (O) · 7 × 10 - 20 = 50 (D) · 4 × 9 - 17 = 19 (E) · 7 × 12 - 18 = 66 (P) · 40 + 2 × 6 = 52 (S) · 6 × 5 - 1 = 29 (Y) · 44 + 3 × 8 = 68 (L) · 7 + 4 × 4 = 23 (B) · 31 + 3 × 4 = 43 (R) · 24 + 3 × 3 = 33 (N) · 12 × 3 - 11 = 25 (A) · 16 + 2 × 5 = 26 (H)
- Clue 4 (Multiplication facts (1-12)): "SILVER WIRES WERE SNAGGED ON THE DOORWAY"1 × 3 = 3 (S) · 10 × 11 = 110 (Y) · 6 × 8 = 48 (T) · 8 × 7 = 56 (V) · 4 × 8 = 32 (L) · 1 × 9 = 9 (H) · 5 × 11 = 55 (E) · 11 × 11 = 121 (G) · 12 × 7 = 84 (O) · 1 × 7 = 7 (R) · 7 × 10 = 70 (W) · 8 × 1 = 8 (D) · 12 × 8 = 96 (N) · 2 × 2 = 4 (I) · 2 × 11 = 22 (A)
- Clue 5 (Fractions of a number): surviving statement (box 12) → Socket2/10 of 55 = 11 · 3/10 of 10 = 3 · 3/6 of 16 = 8 · 2/4 of 2 = 1 · 3/6 of 14 = 7 · 2/6 of 30 = 10 · 1/8 of 48 = 6 · 4/6 of 6 = 4 · 2/6 of 15 = 5 · 1/2 of 4 = 2 · 3/5 of 15 = 9
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Fractions of a number, Bar models, Order of operations, Multiplication
- Reading level
- grades 3-4
- Theme
- The Rogue Robot Rampage — set in Metropolis Cyber Lab
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects