🚀 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 |
|---|---|---|---|---|---|
| Razor | Invisibility | Super Strength | Female | Green | Cookies |
| Blitzfire | Invisibility | Poisonous Burps | Male | Orange | Silver |
| Mega Mage | Mind Control | Super Strength | Female | Orange | Sunlight |
| Splash | Energy Blasts | Sonic Scream | Female | Orange | Sunlight |
| Zapman | Mind Control | Sonic Scream | Female | Purple | Silver |
| Lady Bug | Mind Control | Shape Shifting | Female | Orange | Silver |
| Thunder Hawk | Invisibility | Super Strength | Male | Green | Sunlight |
| Lion Man | Invisibility | Super Strength | Male | Purple | Sunlight |
| Typhoon | Teleportation | Flight | Male | Orange | Silver |
| Doctor Bolt | Invisibility | Shape Shifting | Male | Orange | Silver |
| The Giggler | Energy Blasts | Poisonous Burps | Female | Green | Cookies |
| Titanicus | Super Speed | Super Strength | Female | Green | Cookies |
| Blinker | Invisibility | Shape Shifting | Male | Green | Sunlight |
| Pizza Peter | Teleportation | Poisonous Burps | Male | Orange | Silver |
| Dare Girl | Super Speed | Shape Shifting | Male | Orange | Cookies |
| Iron Vox | Energy Blasts | Flight | Male | Green | Sunlight |
| Starlight | Energy Blasts | Sonic Scream | Male | Orange | Silver |
| Nightgale | Mind Control | Poisonous Burps | Male | Green | Silver |
| Quasar | Super Speed | Flight | Male | Orange | Silver |
| Major Fury | Super Speed | Sonic Scream | Female | Orange | Cookies |
| Colossal Crush | Teleportation | Sonic Scream | Male | Green | Cookies |
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
300
500
50
700
90
80
80
20
90
30
5000
20
30
30
40
T
300
800
80
9000
Round 318 to the nearest hundredT
Round 44 to the nearest tenO
Round 89 to the nearest tenI
Round 23 to the nearest tenA
Round 80 to the nearest tenL
Round 30 to the nearest tenN
Round 783 to the nearest hundredF
Round 5,091 to the nearest thousandC
Round 486 to the nearest hundredH
Round 9,297 to the nearest thousandY
Round 51 to the nearest tenE
Round 695 to the nearest hundredV
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
777
533
481
537
358
710
213
213
818
710
953
625
818
537
213
537
206
A
777
537
537
206
710
A
777
358
537
481
206
710
818
625
481
213
A
777
827
A
777
599
710
310 + 467 =A
197 + 284 =I
145 + 213 =N
359 + 178 =T
239 + 294 =W
227 + 372 =L
258 + 560 =R
262 + 363 =O
333 + 620 =P
119 + 87 =H
358 + 352 =E
136 + 77 =S
578 + 249 =M
0/13 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
152
535
A
152
797
299
773
411
A
152
594
493
797
779
780
780
667
816
493
A
152
674
667
184
816
493
594
779
734
184
667
816
773
184
535
365
493
594
365 - 213 =A
1047 - 380 =T
947 - 273 =N
467 - 56 =C
728 - 193 =L
950 - 171 =O
877 - 143 =W
1043 - 227 =H
1158 - 378 =F
822 - 25 =D
416 - 117 =Y
1058 - 285 =S
868 - 274 =R
758 - 393 =V
304 - 120 =I
807 - 314 =E
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
66
50
72
30
60
100
28
99
77
7
108
100
28
99
50
30
50
7
108
100
132
2
33
108
60
7
32
33
2
7
2
77
33
2
5
108
Y
66
50
7
32
108
99
77
108
21
2
100
6 × 11 =Y
7 × 1 =R
1 × 5 =M
12 × 11 =G
5 × 6 =F
6 × 10 =I
9 × 12 =A
3 × 11 =H
7 × 11 =T
7 × 3 =K
10 × 10 =N
4 × 8 =W
5 × 10 =O
2 × 1 =E
11 × 9 =S
9 × 8 =U
4 × 7 =D
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
3 ÷ 3 = ?
2 ÷ 1 = ?
108 ÷ 9 = ?
88 ÷ 8 = ?
15 ÷ 5 = ?
6 ÷ 1 = ?
60 ÷ 6 = ?
99 ÷ 11 = ?
8 ÷ 1 = ?
77 ÷ 11 = ?
15 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain turns invisible to slip past everyone, then lets out a poisonous burp to weaken them.
2.The villain fires crackling energy blasts, then unleashes a sonic scream.
3.The villain bends minds to make victims obey, then lets out a poisonous burp to weaken them.
4.The villain teleports behind victims without warning, then lets out a poisonous burp to weaken them.
5.The villain turns invisible to slip past everyone, then tears open locked doors with raw strength.
6.The villain fires crackling energy blasts, then shape-shifts into a familiar face.
7.The villain bends minds to make victims obey, then shape-shifts into a familiar face.
8.The villain fires crackling energy blasts, then tears open locked doors with raw strength.
9.The villain bends minds to make victims obey, then takes to the sky.
10.The villain bends minds to make victims obey, then tears open locked doors with raw strength.
11.The villain bends minds to make victims obey, then unleashes a sonic scream.
12.The villain turns invisible to slip past everyone, 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: Pizza Peter (Teleportation · Poisonous Burps · Male · Orange · Silver)
- Clue 1 (Rounding): "THE VILLAIN CANNOT FLY"Round 318 to the nearest hundred = 300 (T) · Round 44 to the nearest ten = 40 (O) · Round 89 to the nearest ten = 90 (I) · Round 23 to the nearest ten = 20 (A) · Round 80 to the nearest ten = 80 (L) · Round 30 to the nearest ten = 30 (N) · Round 783 to the nearest hundred = 800 (F) · Round 5,091 to the nearest thousand = 5000 (C) · Round 486 to the nearest hundred = 500 (H) · Round 9,297 to the nearest thousand = 9000 (Y) · Round 51 to the nearest ten = 50 (E) · Round 695 to the nearest hundred = 700 (V)
- Clue 2 (Addition): "A WITNESS REPORTS THAT THE ANTIHERO IS A MALE"310 + 467 = 777 (A) · 197 + 284 = 481 (I) · 145 + 213 = 358 (N) · 359 + 178 = 537 (T) · 239 + 294 = 533 (W) · 227 + 372 = 599 (L) · 258 + 560 = 818 (R) · 262 + 363 = 625 (O) · 333 + 620 = 953 (P) · 119 + 87 = 206 (H) · 358 + 352 = 710 (E) · 136 + 77 = 213 (S) · 578 + 249 = 827 (M)
- Clue 3 (Subtraction): "A LADY SCARED OFF THE ANTIHERO WITH SILVER"365 - 213 = 152 (A) · 1047 - 380 = 667 (T) · 947 - 273 = 674 (N) · 467 - 56 = 411 (C) · 728 - 193 = 535 (L) · 950 - 171 = 779 (O) · 877 - 143 = 734 (W) · 1043 - 227 = 816 (H) · 1158 - 378 = 780 (F) · 822 - 25 = 797 (D) · 416 - 117 = 299 (Y) · 1058 - 285 = 773 (S) · 868 - 274 = 594 (R) · 758 - 393 = 365 (V) · 304 - 120 = 184 (I) · 807 - 314 = 493 (E)
- Clue 4 (Multiplication facts (1-12)): "YOU FIND STRANDS OF ORANGE HAIR WHERE THE MAYOR WAS TAKEN"6 × 11 = 66 (Y) · 7 × 1 = 7 (R) · 1 × 5 = 5 (M) · 12 × 11 = 132 (G) · 5 × 6 = 30 (F) · 6 × 10 = 60 (I) · 9 × 12 = 108 (A) · 3 × 11 = 33 (H) · 7 × 11 = 77 (T) · 7 × 3 = 21 (K) · 10 × 10 = 100 (N) · 4 × 8 = 32 (W) · 5 × 10 = 50 (O) · 2 × 1 = 2 (E) · 11 × 9 = 99 (S) · 9 × 8 = 72 (U) · 4 × 7 = 28 (D)
- Clue 5 (Division facts (1-12)): surviving statement (box 4) → Pizza Peter3 ÷ 3 = 1 · 2 ÷ 1 = 2 · 108 ÷ 9 = 12 · 88 ÷ 8 = 11 · 15 ÷ 5 = 3 · 6 ÷ 1 = 6 · 60 ÷ 6 = 10 · 99 ÷ 11 = 9 · 8 ÷ 1 = 8 · 77 ÷ 11 = 7 · 15 ÷ 3 = 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