🔎 SchoolGrade 6Reading: grades 5-6AdditionMultiplicationSubtractionPercentagesDivision
The Great Locker Room Prankster
Someone swiped the official school trophy right before Friday's big assembly and left a trail of sticky sticky-notes down the hallway. Solve the math clues to uncover which student prankster committed the mystery!
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 | Signature Device | Disguise Item | Watch Placement | Haircut | Caught By |
|---|---|---|---|---|---|
| Sawyer Stone | Confetti Cannon | Oversized Hoodie | Right Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Harper Lee | Confetti Cannon | Fake Mustache | Left Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Taylor Swift | Mega Megaphone | Mascot Mask | Right Wrist Watch | Curly Top | Hall Monitor Tape |
| Finley Scott | Chalk Launcher | Oversized Hoodie | Left Wrist Watch | Spiky Buzz | Squeaky Floorboard |
| Riley Davis | Squeaky Shoes | Mascot Mask | Right Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Skyler White | Squeaky Shoes | Giant Backpack | Left Wrist Watch | Curly Top | Hall Monitor Tape |
| Kai Tanaka | Mega Megaphone | Neon Visor | Left Wrist Watch | Curly Top | Cafeteria Bell |
| Casey Jordan | Mega Megaphone | Oversized Hoodie | Right Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Lennon Cruz | Laser Pointer | Giant Backpack | Left Wrist Watch | Sleek Ponytail | Cafeteria Bell |
| Alex Rivera | Squeaky Shoes | Mascot Mask | Left Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Rory Gilmore | Laser Pointer | Neon Visor | Left Wrist Watch | Sleek Ponytail | Squeaky Floorboard |
| Morgan Vance | Chalk Launcher | Neon Visor | Left Wrist Watch | Curly Top | Cafeteria Bell |
| Jordan Lee | Laser Pointer | Giant Backpack | Right Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Reese Witherspoon | Chalk Launcher | Neon Visor | Right Wrist Watch | Spiky Buzz | Hall Monitor Tape |
| Rowan Miller | Mega Megaphone | Oversized Hoodie | Right Wrist Watch | Curly Top | Squeaky Floorboard |
| Emerson Reed | Squeaky Shoes | Oversized Hoodie | Right Wrist Watch | Curly Top | Cafeteria Bell |
| Shiloh Adams | Chalk Launcher | Fake Mustache | Left Wrist Watch | Curly Top | Cafeteria Bell |
| Avery Brooks | Chalk Launcher | Fake Mustache | Left Wrist Watch | Spiky Buzz | Squeaky Floorboard |
| Quinn Parker | Mega Megaphone | Mascot Mask | Left Wrist Watch | Spiky Buzz | Squeaky Floorboard |
| Ellis Bell | Mega Megaphone | Fake Mustache | Left Wrist Watch | Spiky Buzz | Squeaky Floorboard |
| Peyton Manning | Mega Megaphone | Giant Backpack | Right Wrist Watch | Spiky Buzz | Cafeteria Bell |
Clue 1
Addition
To count up all the missing hall passes collected around the locker rooms, the hall monitor tallied them up.
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
5335
5792
2037
8446
7355
8468
8468
9580
7355
3302
8988
4340
2037
2891
3302
4340
T
5335
9796
2037
9580
3610
9580
3302
2037
4340
3302
8446
7355
2891
4340
3610
3414 + 1921 =T
3502 + 3853 =I
2995 + 2797 =H
3522 + 5466 =D
1569 + 1733 =N
1845 + 1765 =R
1112 + 925 =E
4577 + 3869 =V
5062 + 4734 =W
3272 + 6308 =A
1702 + 2638 =O
1782 + 1109 =S
4729 + 3739 =L
0/13 letters found
Clue 2
Multiplication facts (1-12)
The science teacher arranged the lab supplies into equal rows across the lab tables to check for missing gear.
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
11
10
60
7
18
77
24
20
35
T
11
60
18
1
22
18
60
77
1
77
T
11
88
10
22
24
T
11
10
60
18
25
144
10
T
11
1
18
25
35
T
11
1 × 11 =T
1 × 1 =W
4 × 5 =K
7 × 1 =P
5 × 2 =H
2 × 11 =O
5 × 5 =I
7 × 11 =A
7 × 5 =S
5 × 12 =E
12 × 2 =N
11 × 8 =C
12 × 12 =G
3 × 6 =R
0/14 letters found
Clue 3
Subtraction
Comparing the total cafeteria trays before lunch to what remained after the commotion showed how many vanished.
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
8535
3290
6783
7417
2235
1235
3716
1318
2626
T
8535
4207
3002
2100
T
8535
1318
2626
3716
3716
6783
1732
7490
1053
3290
3002
1235
1235
5707
2964
4094
2626
T
8535
2964
1318
T
8535
3002
3716
6783
13118 - 4583 =T
2666 - 934 =D
10391 - 4684 =M
2989 - 25 =O
4573 - 3255 =R
9084 - 2301 =E
4062 - 1060 =A
5214 - 2588 =I
4689 - 3454 =L
7761 - 344 =C
4378 - 171 =W
5065 - 4012 =Y
7018 - 3302 =P
5264 - 3029 =U
9197 - 1707 =B
3307 - 1207 =S
4145 - 51 =N
4720 - 1430 =H
0/18 letters found
Clue 4
Percentages
The principal analyzed the percentage of students who witnessed the hallway disruption in the main foyer.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
D
6
35
3
35
37
3
30
21
35
38
26
27
20
33
D
6
38
39
30
22
5
8
20
31
31
13
10
30
9
10
3
38
37
35
33
35
40% of 15 =D
25% of 36 =R
25% of 152 =S
5% of 420 =V
10% of 80 =B
50% of 26 =H
10% of 350 =E
50% of 44 =K
10% of 50 =Y
10% of 390 =P
5% of 660 =N
5% of 60 =T
20% of 185 =C
20% of 100 =U
20% of 155 =Z
25% of 108 =O
50% of 60 =I
10% of 260 =F
10% of 100 =A
0/19 letters found
Clue 5
Division facts (1-12) — the last clue
The student council split the remaining detention slips equally among five teacher mailboxes to inspect them.
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
25 ÷ 5 = ?
110 ÷ 10 = ?
3 ÷ 3 = ?
30 ÷ 10 = ?
40 ÷ 10 = ?
81 ÷ 9 = ?
24 ÷ 2 = ?
42 ÷ 6 = ?
8 ÷ 1 = ?
24 ÷ 4 = ?
8 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain blared a mega megaphone, then hid inside an oversized hoodie.
2.The villain blared a mega megaphone, then attached a fake mustache.
3.The villain flashed a laser pointer, then hid inside an oversized hoodie.
4.The villain fired a chalk launcher, then adjusted a neon visor.
5.The villain flashed a laser pointer, then zipped up a giant backpack.
6.The villain blared a mega megaphone, then adjusted a neon visor.
7.The villain blasted a confetti cannon, then zipped up a giant backpack.
8.The villain snuck in squeaky shoes, then hid inside an oversized hoodie.
9.The villain flashed a laser pointer, then attached a fake mustache.
10.The villain snuck in squeaky shoes, then pulled down a mascot mask.
11.The villain blasted a confetti cannon, then hid inside an oversized hoodie.
12.The villain blasted a confetti cannon, then pulled down a mascot mask.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Locker Room Prankster
Culprit: Riley Davis (Squeaky Shoes · Mascot Mask · Right Wrist Watch · Spiky Buzz · Hall Monitor Tape)
- Clue 1 (Addition): "THE VILLAIN DOES NOT WEAR A NEON VISOR"3414 + 1921 = 5335 (T) · 3502 + 3853 = 7355 (I) · 2995 + 2797 = 5792 (H) · 3522 + 5466 = 8988 (D) · 1569 + 1733 = 3302 (N) · 1845 + 1765 = 3610 (R) · 1112 + 925 = 2037 (E) · 4577 + 3869 = 8446 (V) · 5062 + 4734 = 9796 (W) · 3272 + 6308 = 9580 (A) · 1702 + 2638 = 4340 (O) · 1782 + 1109 = 2891 (S) · 4729 + 3739 = 8468 (L)
- Clue 2 (Multiplication facts (1-12)): "THE PRANKSTER WORE A WATCH ON THE RIGHT WRIST"1 × 11 = 11 (T) · 1 × 1 = 1 (W) · 4 × 5 = 20 (K) · 7 × 1 = 7 (P) · 5 × 2 = 10 (H) · 2 × 11 = 22 (O) · 5 × 5 = 25 (I) · 7 × 11 = 77 (A) · 7 × 5 = 35 (S) · 5 × 12 = 60 (E) · 12 × 2 = 24 (N) · 11 × 8 = 88 (C) · 12 × 12 = 144 (G) · 3 × 6 = 18 (R)
- Clue 3 (Subtraction): "THE CULPRIT WAS TRIPPED BY HALL MONITOR TAPE"13118 - 4583 = 8535 (T) · 2666 - 934 = 1732 (D) · 10391 - 4684 = 5707 (M) · 2989 - 25 = 2964 (O) · 4573 - 3255 = 1318 (R) · 9084 - 2301 = 6783 (E) · 4062 - 1060 = 3002 (A) · 5214 - 2588 = 2626 (I) · 4689 - 3454 = 1235 (L) · 7761 - 344 = 7417 (C) · 4378 - 171 = 4207 (W) · 5065 - 4012 = 1053 (Y) · 7018 - 3302 = 3716 (P) · 5264 - 3029 = 2235 (U) · 9197 - 1707 = 7490 (B) · 3307 - 1207 = 2100 (S) · 4145 - 51 = 4094 (N) · 4720 - 1430 = 3290 (H)
- Clue 4 (Percentages): "DETECTIVES FOUND SPIKY BUZZ HAIR AT SCENE"40% of 15 = 6 (D) · 25% of 36 = 9 (R) · 25% of 152 = 38 (S) · 5% of 420 = 21 (V) · 10% of 80 = 8 (B) · 50% of 26 = 13 (H) · 10% of 350 = 35 (E) · 50% of 44 = 22 (K) · 10% of 50 = 5 (Y) · 10% of 390 = 39 (P) · 5% of 660 = 33 (N) · 5% of 60 = 3 (T) · 20% of 185 = 37 (C) · 20% of 100 = 20 (U) · 20% of 155 = 31 (Z) · 25% of 108 = 27 (O) · 50% of 60 = 30 (I) · 10% of 260 = 26 (F) · 10% of 100 = 10 (A)
- Clue 5 (Division facts (1-12)): surviving statement (box 10) → Riley Davis25 ÷ 5 = 5 · 110 ÷ 10 = 11 · 3 ÷ 3 = 1 · 30 ÷ 10 = 3 · 40 ÷ 10 = 4 · 81 ÷ 9 = 9 · 24 ÷ 2 = 12 · 42 ÷ 6 = 7 · 8 ÷ 1 = 8 · 24 ÷ 4 = 6 · 8 ÷ 4 = 2
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Addition, Multiplication, Subtraction, Percentages, Division
- Reading level
- grades 5-6
- Theme
- The Great Locker Room Prankster — set in Oakridge Middle School
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects