🔎 SchoolGrade 6Reading: grades 1-2PercentagesExponentsOrder of operationsMultiplicationDivision
The Great Homework Folder Mix-Up
Oh no! Someone mixed up all the homework folders in the main office. The School Principal needs your help to catch the Hallway Prankster. Follow the clues and do the math to save the day!
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 | Hallway Skill | Pocket Item | Writing Hand | Head Accessory | Distraction |
|---|---|---|---|---|---|
| Penny Peterson | super chalkboard erasing | red laser pointer | writes with right hand | yellow star hairclip | smelly dirty gym socks |
| Junie Jones | perfect paper airplane throwing | shiny gold star stickers | writes with right hand | shiny blue headband | smelly dirty gym socks |
| Linus VanPelt | neat locker organizing | wood yardstick ruler | writes with left hand | yellow star hairclip | squeaky whiteboard markers |
| Matilda Wormwood | quiet library tiptoeing | wood yardstick ruler | writes with left hand | shiny blue headband | smelly dirty gym socks |
| Buster Baxter | lightning speed hall walking | red laser pointer | writes with left hand | yellow star hairclip | squeaky whiteboard markers |
| Mercy Watson | perfect paper airplane throwing | red laser pointer | writes with left hand | yellow star hairclip | smelly dirty gym socks |
| Principal Bob | lightning speed hall walking | wood yardstick ruler | writes with left hand | bright red baseball cap | squeaky whiteboard markers |
| Judy Moody | super chalkboard erasing | wood yardstick ruler | writes with right hand | yellow star hairclip | squeaky whiteboard markers |
| Lucy VanPelt | super chalkboard erasing | wood yardstick ruler | writes with left hand | bright red baseball cap | smelly dirty gym socks |
| Nurse Joy | super chalkboard erasing | wood yardstick ruler | writes with right hand | shiny blue headband | sticky wet cleaning sponge |
| Coach Dan | perfect paper airplane throwing | wood yardstick ruler | writes with left hand | yellow star hairclip | squeaky whiteboard markers |
| Ramona Quimby | lightning speed hall walking | red laser pointer | writes with right hand | yellow star hairclip | squeaky whiteboard markers |
| Charlie Brown | neat locker organizing | sparkly glitter glue | writes with left hand | yellow star hairclip | squeaky whiteboard markers |
| Greg Heffley | lightning speed hall walking | sparkly glitter glue | writes with right hand | yellow star hairclip | squeaky whiteboard markers |
| Francine Frensky | neat locker organizing | red laser pointer | writes with right hand | shiny blue headband | sticky wet cleaning sponge |
| Miss Frizzle | super chalkboard erasing | wood yardstick ruler | writes with left hand | yellow star hairclip | sticky wet cleaning sponge |
| Stink Moody | perfect paper airplane throwing | shiny gold star stickers | writes with left hand | yellow star hairclip | sticky wet cleaning sponge |
| Billy Miller | quiet library tiptoeing | red laser pointer | writes with right hand | shiny blue headband | squeaky whiteboard markers |
| Nate Wright | lightning speed hall walking | shiny gold star stickers | writes with right hand | shiny blue headband | smelly dirty gym socks |
| Sally Brown | perfect paper airplane throwing | loud silver whistle | writes with right hand | bright red baseball cap | smelly dirty gym socks |
| Janitor Joe | super chalkboard erasing | loud silver whistle | writes with left hand | yellow star hairclip | squeaky whiteboard markers |
Clue 1
Percentages
We look at the grade book. The teacher wrote down the scores as a part of one hundred. Let us find the percentage!
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
15
19
4
45
10
28
28
38
10
31
27
9
4
5
31
9
T
15
19
38
45
4
38
28
9
24
27
30
19
10
5
T
15
28
4
60% of 25 =T
20% of 155 =N
25% of 108 =D
60% of 50 =W
10% of 90 =O
5% of 200 =I
5% of 560 =L
20% of 20 =E
60% of 75 =V
20% of 190 =A
50% of 10 =S
10% of 190 =H
25% of 96 =U
0/13 letters found
Clue 2
Exponents
Look at this box of grid paper. The squares multiply very fast when we stack them up. Let us find the power!
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
64
27
256
9
216
169
121
128
361
27
169
4
125
343
400
27
343
121
125
169
8
400
27
343
27
256
8
400
128
169
121
8^2 =W
3^2 =O
5^3 =I
2^3 =T
19^2 =P
16^2 =F
2^2 =C
11^2 =D
3^3 =E
6^3 =U
2^7 =A
7^3 =L
13^2 =N
20^2 =H
0/14 letters found
Clue 3
Order of operations
First we must pack our bags. Next we zip them. We must do things in the right order to get the key!
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
38
17
75
42
58
9
75
73
54
71
62
73
30
54
75
30
42
42
T
38
45
12
12
75
26
T
38
17
75
12
30
73
47
54
42
T
38
75
30
24 + 7 × 2 =T
64 + 3 × 3 =A
15 + 5 × 6 =O
6 × 7 - 25 =H
10 × 7 - 23 =N
17 + 6 × 9 =Y
3 × 9 - 1 =D
5 × 7 - 5 =R
9 × 9 - 6 =E
7 × 4 - 19 =U
2 + 5 × 2 =P
22 + 5 × 4 =S
38 + 4 × 4 =K
44 + 2 × 9 =M
12 × 7 - 26 =Q
0/15 letters found
Clue 4
Multiplication facts (1-12)
The crayons are packed in equal rows on the shelf. We can multiply the rows to count them all fast!
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
1
5
56
88
80
121
66
T
1
35
88
56
80
80
121
36
66
T
1
35
44
5
35
33
44
55
80
33
45
1 × 1 =T
11 × 4 =R
5 × 7 =A
11 × 8 =Y
1 × 5 =H
11 × 11 =O
11 × 5 =C
7 × 8 =E
5 × 9 =P
3 × 12 =W
10 × 8 =L
6 × 11 =S
11 × 3 =I
0/13 letters found
Clue 5
Division facts (1-12) — the last clue
We need to share the stickers equally among our friends. Let us divide them up so everyone gets the same!
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
120 ÷ 12 = ?
54 ÷ 6 = ?
120 ÷ 10 = ?
72 ÷ 9 = ?
30 ÷ 10 = ?
42 ÷ 6 = ?
48 ÷ 12 = ?
40 ÷ 8 = ?
20 ÷ 10 = ?
7 ÷ 7 = ?
36 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain sped down the quiet hallway, then blew the loud silver whistle.
2.The villain threw a neat paper airplane, then flashed the red laser pointer.
3.The villain cleaned up the messy lockers, then flashed the red laser pointer.
4.The villain erased the giant chalkboard, then flashed the red laser pointer.
5.The villain erased the giant chalkboard, then blew the loud silver whistle.
6.The villain threw a neat paper airplane, then dropped the shiny gold star stickers.
7.The villain sped down the quiet hallway, then spilled the sparkly glitter glue.
8.The villain cleaned up the messy lockers, then dropped the shiny gold star stickers.
9.The villain cleaned up the messy lockers, then spilled the sparkly glitter glue.
10.The villain sped down the quiet hallway, then flashed the red laser pointer.
11.The villain cleaned up the messy lockers, then measured with the wood yardstick ruler.
12.The villain threw a neat paper airplane, then measured with the wood yardstick ruler.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Homework Folder Mix-Up
Culprit: Linus VanPelt (neat locker organizing · wood yardstick ruler · writes with left hand · yellow star hairclip · squeaky whiteboard markers)
- Clue 1 (Percentages): "THE VILLAIN DOES NOT HAVE A LOUD WHISTLE"60% of 25 = 15 (T) · 20% of 155 = 31 (N) · 25% of 108 = 27 (D) · 60% of 50 = 30 (W) · 10% of 90 = 9 (O) · 5% of 200 = 10 (I) · 5% of 560 = 28 (L) · 20% of 20 = 4 (E) · 60% of 75 = 45 (V) · 20% of 190 = 38 (A) · 50% of 10 = 5 (S) · 10% of 190 = 19 (H) · 25% of 96 = 24 (U)
- Clue 2 (Exponents): "WE FOUND A PENCIL HELD IN THE LEFT HAND"8^2 = 64 (W) · 3^2 = 9 (O) · 5^3 = 125 (I) · 2^3 = 8 (T) · 19^2 = 361 (P) · 16^2 = 256 (F) · 2^2 = 4 (C) · 11^2 = 121 (D) · 3^3 = 27 (E) · 6^3 = 216 (U) · 2^7 = 128 (A) · 7^3 = 343 (L) · 13^2 = 169 (N) · 20^2 = 400 (H)
- Clue 3 (Order of operations): "THE SQUEAKY MARKERS STOPPED THE PRANKSTER"24 + 7 × 2 = 38 (T) · 64 + 3 × 3 = 73 (A) · 15 + 5 × 6 = 45 (O) · 6 × 7 - 25 = 17 (H) · 10 × 7 - 23 = 47 (N) · 17 + 6 × 9 = 71 (Y) · 3 × 9 - 1 = 26 (D) · 5 × 7 - 5 = 30 (R) · 9 × 9 - 6 = 75 (E) · 7 × 4 - 19 = 9 (U) · 2 + 5 × 2 = 12 (P) · 22 + 5 × 4 = 42 (S) · 38 + 4 × 4 = 54 (K) · 44 + 2 × 9 = 62 (M) · 12 × 7 - 26 = 58 (Q)
- Clue 4 (Multiplication facts (1-12)): "THEY LOST A YELLOW STAR HAIRCLIP"1 × 1 = 1 (T) · 11 × 4 = 44 (R) · 5 × 7 = 35 (A) · 11 × 8 = 88 (Y) · 1 × 5 = 5 (H) · 11 × 11 = 121 (O) · 11 × 5 = 55 (C) · 7 × 8 = 56 (E) · 5 × 9 = 45 (P) · 3 × 12 = 36 (W) · 10 × 8 = 80 (L) · 6 × 11 = 66 (S) · 11 × 3 = 33 (I)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Linus VanPelt120 ÷ 12 = 10 · 54 ÷ 6 = 9 · 120 ÷ 10 = 12 · 72 ÷ 9 = 8 · 30 ÷ 10 = 3 · 42 ÷ 6 = 7 · 48 ÷ 12 = 4 · 40 ÷ 8 = 5 · 20 ÷ 10 = 2 · 7 ÷ 7 = 1 · 36 ÷ 6 = 6
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Percentages, Exponents, Order of operations, Multiplication, Division
- Reading level
- grades 1-2
- Theme
- The Great Homework Folder Mix-Up — set in Oak Tree Elementary School
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects