🚀 Space piratesGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
Case of the Super Bad Superhero
A villain hides among the heroes of Mathhattan and has kidnapped the Mayor. The police can't tell friend from phony — only a sharp math detective can. Solve each clue's math to decode it, cross suspects off the list, and name the one hero left standing.
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 Power | Extra Power | Sex | Hair | Weakness |
|---|---|---|---|---|---|
| Blitzfire | Invisibility | Poisonous Burps | Female | Green | Sunlight |
| Lion Man | Teleportation | Shape Shifting | Male | Purple | Silver |
| Splash | Mind Control | Super Strength | Female | Orange | Silver |
| Razor | Energy Blasts | Shape Shifting | Female | Orange | Silver |
| Doctor Bolt | Invisibility | Shape Shifting | Male | Orange | Silver |
| The Giggler | Super Speed | Flight | Female | Purple | Silver |
| Blinker | Mind Control | Flight | Male | Purple | Sunlight |
| Titanicus | Teleportation | Flight | Female | Orange | Silver |
| Mrs. Amazing | Energy Blasts | Flight | Female | Green | Cookies |
| Owl Man | Energy Blasts | Super Strength | Female | Orange | Silver |
| Pizza Peter | Energy Blasts | Shape Shifting | Male | Orange | Silver |
| Starlight | Super Speed | Flight | Male | Green | Cookies |
| Captain Nucleus | Invisibility | Sonic Scream | Female | Green | Silver |
| Dare Girl | Invisibility | Poisonous Burps | Female | Orange | Sunlight |
| Mega Mage | Energy Blasts | Super Strength | Female | Purple | Cookies |
| Zapman | Mind Control | Flight | Female | Orange | Sunlight |
| Quasar | Super Speed | Poisonous Burps | Female | Orange | Cookies |
| Iron Vox | Mind Control | Shape Shifting | Male | Orange | Silver |
| Typhoon | Energy Blasts | Flight | Male | Green | Silver |
| Major Fury | Energy Blasts | Sonic Scream | Female | Orange | Silver |
| Lady Bug | Super Speed | Flight | Male | Green | Sunlight |
Clue 1
Rounding
A torn note flutters out of the Mayor's office — but the words are hidden behind a math code. Solve it to read 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.
T
7000
90
9000
8000
2000
80
80
400
2000
600
4000
400
600
600
40
T
7000
700
80
300
Round 6,631 to the nearest thousandT
Round 8,917 to the nearest thousandE
Round 733 to the nearest hundredF
Round 300 to the nearest hundredY
Round 44 to the nearest tenO
Round 564 to the nearest hundredN
Round 8,092 to the nearest thousandV
Round 4,278 to the nearest thousandC
Round 84 to the nearest tenL
Round 93 to the nearest tenH
Round 2,313 to the nearest thousandI
Round 414 to the nearest hundredA
0/12 letters found
Clue 2
Addition
A witness left a message at the scene, locked behind more math. Work it out to hear what they saw.
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
303
214
978
469
572
717
352
352
852
717
651
648
852
469
352
469
932
A
303
469
469
932
717
A
303
572
469
978
932
717
852
648
978
352
A
303
864
717
654
A
303
795
717
110 + 193 =A
330 + 387 =E
447 + 207 =M
296 + 352 =O
347 + 585 =H
549 + 429 =I
398 + 397 =L
323 + 146 =T
311 + 340 =P
238 + 114 =S
347 + 517 =F
249 + 323 =N
118 + 96 =W
576 + 276 =R
0/14 letters found
Clue 3
Subtraction
Down at the docks, someone scared the villain off and scribbled how. Crack the numbers to find out.
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
666
857
A
666
426
669
681
866
A
666
113
112
426
196
298
298
631
766
112
A
666
595
631
732
766
112
113
196
231
732
631
766
681
732
857
142
112
113
932 - 266 =A
1115 - 383 =I
571 - 145 =D
366 - 135 =W
256 - 144 =E
1124 - 267 =L
233 - 120 =R
985 - 219 =H
428 - 286 =V
738 - 107 =T
417 - 221 =O
897 - 216 =S
1008 - 142 =C
346 - 48 =F
906 - 237 =Y
686 - 91 =N
0/16 letters found
Clue 4
Multiplication facts (1-12)
The clean-up crew found something the villain dropped. Do the math to see what it was.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Y
63
1
4
3
56
49
7
80
45
132
100
49
7
80
1
3
1
132
100
49
110
72
21
100
56
132
25
21
72
132
72
45
21
72
20
100
Y
63
1
132
25
100
80
45
100
10
72
49
9 × 7 =Y
5 × 5 =W
9 × 5 =T
1 × 7 =D
8 × 10 =S
7 × 7 =N
4 × 5 =M
3 × 7 =H
11 × 10 =G
12 × 6 =E
2 × 2 =U
8 × 7 =I
1 × 1 =O
3 × 1 =F
10 × 10 =A
11 × 12 =R
5 × 2 =K
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
You've almost got it. One last set of numbers will reveal exactly how the villain pulled it off.
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
99 ÷ 9 = ?
72 ÷ 12 = ?
90 ÷ 10 = ?
16 ÷ 4 = ?
56 ÷ 8 = ?
120 ÷ 12 = ?
12 ÷ 1 = ?
12 ÷ 6 = ?
27 ÷ 9 = ?
32 ÷ 4 = ?
40 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain fires crackling energy blasts, then unleashes a sonic scream.
2.The villain fires crackling energy blasts, then lets out a poisonous burp to weaken them.
3.The villain races through the streets at impossible speed, then shape-shifts into a familiar face.
4.The villain turns invisible to slip past everyone, then tears open locked doors with raw strength.
5.The villain races through the streets at impossible speed, then takes to the sky.
6.The villain bends minds to make victims obey, then tears open locked doors with raw strength.
7.The villain teleports behind victims without warning, then tears open locked doors with raw strength.
8.The villain turns invisible to slip past everyone, then unleashes a sonic scream.
9.The villain fires crackling energy blasts, then shape-shifts into a familiar face.
10.The villain teleports behind victims without warning, then shape-shifts into a familiar face.
11.The villain fires crackling energy blasts, then tears open locked doors with raw strength.
12.The villain bends minds to make victims obey, then shape-shifts into a familiar face.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — Case of the Super Bad Superhero
Culprit: Major Fury (Energy Blasts · Sonic Scream · Female · Orange · Silver)
- Clue 1 (Rounding): "THE VILLAIN CANNOT FLY"Round 6,631 to the nearest thousand = 7000 (T) · Round 8,917 to the nearest thousand = 9000 (E) · Round 733 to the nearest hundred = 700 (F) · Round 300 to the nearest hundred = 300 (Y) · Round 44 to the nearest ten = 40 (O) · Round 564 to the nearest hundred = 600 (N) · Round 8,092 to the nearest thousand = 8000 (V) · Round 4,278 to the nearest thousand = 4000 (C) · Round 84 to the nearest ten = 80 (L) · Round 93 to the nearest ten = 90 (H) · Round 2,313 to the nearest thousand = 2000 (I) · Round 414 to the nearest hundred = 400 (A)
- Clue 2 (Addition): "A WITNESS REPORTS THAT THE ANTIHERO IS A FEMALE"110 + 193 = 303 (A) · 330 + 387 = 717 (E) · 447 + 207 = 654 (M) · 296 + 352 = 648 (O) · 347 + 585 = 932 (H) · 549 + 429 = 978 (I) · 398 + 397 = 795 (L) · 323 + 146 = 469 (T) · 311 + 340 = 651 (P) · 238 + 114 = 352 (S) · 347 + 517 = 864 (F) · 249 + 323 = 572 (N) · 118 + 96 = 214 (W) · 576 + 276 = 852 (R)
- Clue 3 (Subtraction): "A LADY SCARED OFF THE ANTIHERO WITH SILVER"932 - 266 = 666 (A) · 1115 - 383 = 732 (I) · 571 - 145 = 426 (D) · 366 - 135 = 231 (W) · 256 - 144 = 112 (E) · 1124 - 267 = 857 (L) · 233 - 120 = 113 (R) · 985 - 219 = 766 (H) · 428 - 286 = 142 (V) · 738 - 107 = 631 (T) · 417 - 221 = 196 (O) · 897 - 216 = 681 (S) · 1008 - 142 = 866 (C) · 346 - 48 = 298 (F) · 906 - 237 = 669 (Y) · 686 - 91 = 595 (N)
- Clue 4 (Multiplication facts (1-12)): "YOU FIND STRANDS OF ORANGE HAIR WHERE THE MAYOR WAS TAKEN"9 × 7 = 63 (Y) · 5 × 5 = 25 (W) · 9 × 5 = 45 (T) · 1 × 7 = 7 (D) · 8 × 10 = 80 (S) · 7 × 7 = 49 (N) · 4 × 5 = 20 (M) · 3 × 7 = 21 (H) · 11 × 10 = 110 (G) · 12 × 6 = 72 (E) · 2 × 2 = 4 (U) · 8 × 7 = 56 (I) · 1 × 1 = 1 (O) · 3 × 1 = 3 (F) · 10 × 10 = 100 (A) · 11 × 12 = 132 (R) · 5 × 2 = 10 (K)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Major Fury99 ÷ 9 = 11 · 72 ÷ 12 = 6 · 90 ÷ 10 = 9 · 16 ÷ 4 = 4 · 56 ÷ 8 = 7 · 120 ÷ 12 = 10 · 12 ÷ 1 = 12 · 12 ÷ 6 = 2 · 27 ÷ 9 = 3 · 32 ÷ 4 = 8 · 40 ÷ 8 = 5
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- Case of the Super Bad Superhero — set in the island of Mathhattan
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects