🔎 Harry Potter singingGrade 4Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
The Hogwarts Harmony Heist
A sneaky spellcaster has cast a Silencing Squeak Hex on the Choir Director right before the big Hogwarts Singing Contest! Now the director can only make silly squeaking sounds, and the choir cannot start. We must find the Phantom Crooner who cast the hex before the audience leaves!
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 | Singing Style | Magical Instrument | Microphone Grip | Wig Color | Stage Fright Trigger |
|---|---|---|---|---|---|
| Severus Snape | Yodeling Charms | Howler Bagpipes | Right Hand Grip | Neon Green Wig | Giant Ear Muffs |
| Ron Weasley | Dragon Metal | Mandrake Drums | Right Hand Grip | Spiky Pink Wig | Sour Lemon Drops |
| Dean Thomas | Yodeling Charms | Frog Choir Keyboard | Right Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Draco Malfoy | Dragon Metal | Howler Bagpipes | Left Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Gilderoy Lockhart | Dragon Metal | Howler Bagpipes | Right Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Minerva McGonagall | Dragon Metal | Howler Bagpipes | Left Hand Grip | Neon Green Wig | Out of Tune Flute |
| Albus Dumbledore | Yodeling Charms | Mandrake Drums | Right Hand Grip | Neon Green Wig | Out of Tune Flute |
| Seamus Finnigan | Merfolk Ballads | Frog Choir Keyboard | Right Hand Grip | Sparkly Gold Wig | Out of Tune Flute |
| Hermione Granger | Merfolk Ballads | Mandrake Drums | Right Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Oliver Wood | Rap Incantations | Mandrake Drums | Right Hand Grip | Sparkly Gold Wig | Out of Tune Flute |
| Cedric Diggory | Opera Screaming | Howler Bagpipes | Left Hand Grip | Spiky Pink Wig | Giant Ear Muffs |
| Neville Longbottom | Dragon Metal | Pixie Flute | Right Hand Grip | Neon Green Wig | Out of Tune Flute |
| Percy Weasley | Rap Incantations | Golden Harp | Right Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Rubeus Hagrid | Yodeling Charms | Frog Choir Keyboard | Left Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Pansy Parkinson | Opera Screaming | Golden Harp | Right Hand Grip | Sparkly Gold Wig | Giant Ear Muffs |
| Fleur Delacour | Rap Incantations | Mandrake Drums | Right Hand Grip | Spiky Pink Wig | Giant Ear Muffs |
| Fred Weasley | Rap Incantations | Mandrake Drums | Right Hand Grip | Spiky Pink Wig | Out of Tune Flute |
| Ginny Weasley | Rap Incantations | Pixie Flute | Right Hand Grip | Sparkly Gold Wig | Giant Ear Muffs |
| Cho Chang | Opera Screaming | Golden Harp | Left Hand Grip | Spiky Pink Wig | Sour Lemon Drops |
| Harry Potter | Opera Screaming | Mandrake Drums | Left Hand Grip | Neon Green Wig | Giant Ear Muffs |
| George Weasley | Dragon Metal | Mandrake Drums | Right Hand Grip | Neon Green Wig | Sour Lemon Drops |
Clue 1
Rounding
The magical sound meter on stage only shows rounded numbers. Round these decibel readings to find 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
30
300
5000
700
50
2900
2900
2000
5000
50
230
2900
5000
70
2000
2900
T
30
90
70
5000
3700
370
5000
1700
170
2900
3700
50
230
Round 27 to the nearest tenT
Round 4,716 to the nearest thousandE
Round 307 to the nearest hundredH
Round 670 to the nearest hundredC
Round 69 to the nearest tenS
Round 3,684 to the nearest hundredA
Round 174 to the nearest tenB
Round 234 to the nearest tenD
Round 46 to the nearest tenR
Round 2,339 to the nearest thousandN
Round 1,722 to the nearest hundredY
Round 2,864 to the nearest hundredO
Round 368 to the nearest tenK
Round 90 to the nearest tenU
0/14 letters found
Clue 2
Addition
Let us add up the enchanted music notes left behind by the choir singers to uncover the next lead.
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
2890
2311
6871
8933
8203
6050
7763
6871
8949
7763
8949
8203
6740
6740
6871
5721
T
2890
2311
6871
5038
8203
9520
7658
8203
T
2890
2311
T
2890
2311
6871
8949
8203
7763
2311
T
2890
2311
4487
6050
5721
1658 + 1232 =T
3718 + 2332 =N
1793 + 3928 =D
2742 + 3998 =P
3096 + 1942 =M
3524 + 5996 =C
4207 + 4742 =R
5608 + 2595 =I
3895 + 3868 =G
2456 + 4415 =E
5788 + 3145 =S
1702 + 2785 =A
977 + 1334 =H
5146 + 2512 =W
0/14 letters found
Clue 3
Subtraction
Subtract the broken harp strings from the total pile to see how many were ruined by the spell.
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
8656
2274
4223
7602
5293
4223
7818
5293
7602
2274
5007
7818
8979
7602
5293
5007
8881
A
8656
6484
5007
7654
5293
8783
5007
8881
5244
7602
2274
A
8656
1349
A
8656
3779
9904 - 1248 =A
8632 - 978 =S
12361 - 4543 =F
12048 - 3069 =L
5010 - 3661 =W
5944 - 2165 =Y
9596 - 3112 =K
8920 - 137 =H
8412 - 4189 =O
10978 - 2097 =M
8479 - 3235 =R
7621 - 2328 =T
7932 - 2925 =E
5431 - 3157 =N
7955 - 353 =U
0/15 letters found
Clue 4
Multiplication facts (1-12)
The choir stands have equal rows of singing frogs. Multiply the rows to count the magical singers.
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
72
21
99
3
40
66
99
3
108
40
132
3
20
132
A
72
21
11
22
49
8
3
108
8
35
22
33
32
22
21
21
3
108
20
32
42
42
28
9 × 8 =A
12 × 9 =N
3 × 1 =I
1 × 11 =L
11 × 2 =E
8 × 4 =R
4 × 5 =G
7 × 7 =F
5 × 8 =K
12 × 11 =W
7 × 6 =O
7 × 3 =S
3 × 11 =D
8 × 1 =T
6 × 11 =Y
4 × 7 =M
7 × 5 =H
9 × 11 =P
0/18 letters found
Clue 5
Division facts (1-12) — the last clue
We must divide the golden throat potions equally among the soloists to get the final clue.
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
144 ÷ 12 = ?
16 ÷ 2 = ?
5 ÷ 5 = ?
80 ÷ 8 = ?
11 ÷ 1 = ?
36 ÷ 6 = ?
24 ÷ 6 = ?
9 ÷ 1 = ?
40 ÷ 8 = ?
6 ÷ 3 = ?
33 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain rapped ancient incantations, then bashed the loud Mandrake Drums.
2.The villain rapped ancient incantations, then squeezed the Howler Bagpipes loudly.
3.The villain sang deep merfolk ballads, then plucked the Golden Harp to daze the crowd.
4.The villain rapped ancient incantations, then clattered keys on the Frog Choir Keyboard.
5.The villain yodeled magical charms, then blew a shrill Pixie Flute.
6.The villain rapped ancient incantations, then blew a shrill Pixie Flute.
7.The villain sang deep merfolk ballads, then bashed the loud Mandrake Drums.
8.The villain roared harsh dragon metal music, then squeezed the Howler Bagpipes loudly.
9.The villain roared harsh dragon metal music, then blew a shrill Pixie Flute.
10.The villain shrieked loud opera notes, then plucked the Golden Harp to daze the crowd.
11.The villain roared harsh dragon metal music, then clattered keys on the Frog Choir Keyboard.
12.The villain rapped ancient incantations, then plucked the Golden Harp to daze the crowd.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Hogwarts Harmony Heist
Culprit: Hermione Granger (Merfolk Ballads · Mandrake Drums · Right Hand Grip · Spiky Pink Wig · Out of Tune Flute)
- Clue 1 (Rounding): "THE CROONER DOES NOT USE A KEYBOARD"Round 27 to the nearest ten = 30 (T) · Round 4,716 to the nearest thousand = 5000 (E) · Round 307 to the nearest hundred = 300 (H) · Round 670 to the nearest hundred = 700 (C) · Round 69 to the nearest ten = 70 (S) · Round 3,684 to the nearest hundred = 3700 (A) · Round 174 to the nearest ten = 170 (B) · Round 234 to the nearest ten = 230 (D) · Round 46 to the nearest ten = 50 (R) · Round 2,339 to the nearest thousand = 2000 (N) · Round 1,722 to the nearest hundred = 1700 (Y) · Round 2,864 to the nearest hundred = 2900 (O) · Round 368 to the nearest ten = 370 (K) · Round 90 to the nearest ten = 90 (U)
- Clue 2 (Addition): "THE SINGER GRIPPED THE MIC WITH THE RIGHT HAND"1658 + 1232 = 2890 (T) · 3718 + 2332 = 6050 (N) · 1793 + 3928 = 5721 (D) · 2742 + 3998 = 6740 (P) · 3096 + 1942 = 5038 (M) · 3524 + 5996 = 9520 (C) · 4207 + 4742 = 8949 (R) · 5608 + 2595 = 8203 (I) · 3895 + 3868 = 7763 (G) · 2456 + 4415 = 6871 (E) · 5788 + 3145 = 8933 (S) · 1702 + 2785 = 4487 (A) · 977 + 1334 = 2311 (H) · 5146 + 2512 = 7658 (W)
- Clue 3 (Subtraction): "AN OUT OF TUNE FLUTE MAKES THEM RUN AWAY"9904 - 1248 = 8656 (A) · 8632 - 978 = 7654 (S) · 12361 - 4543 = 7818 (F) · 12048 - 3069 = 8979 (L) · 5010 - 3661 = 1349 (W) · 5944 - 2165 = 3779 (Y) · 9596 - 3112 = 6484 (K) · 8920 - 137 = 8783 (H) · 8412 - 4189 = 4223 (O) · 10978 - 2097 = 8881 (M) · 8479 - 3235 = 5244 (R) · 7621 - 2328 = 5293 (T) · 7932 - 2925 = 5007 (E) · 5431 - 3157 = 2274 (N) · 7955 - 353 = 7602 (U)
- Clue 4 (Multiplication facts (1-12)): "A SPIKY PINK WIG WAS LEFT IN THE DRESSING ROOM"9 × 8 = 72 (A) · 12 × 9 = 108 (N) · 3 × 1 = 3 (I) · 1 × 11 = 11 (L) · 11 × 2 = 22 (E) · 8 × 4 = 32 (R) · 4 × 5 = 20 (G) · 7 × 7 = 49 (F) · 5 × 8 = 40 (K) · 12 × 11 = 132 (W) · 7 × 6 = 42 (O) · 7 × 3 = 21 (S) · 3 × 11 = 33 (D) · 8 × 1 = 8 (T) · 6 × 11 = 66 (Y) · 4 × 7 = 28 (M) · 7 × 5 = 35 (H) · 9 × 11 = 99 (P)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Hermione Granger144 ÷ 12 = 12 · 16 ÷ 2 = 8 · 5 ÷ 5 = 1 · 80 ÷ 8 = 10 · 11 ÷ 1 = 11 · 36 ÷ 6 = 6 · 24 ÷ 6 = 4 · 9 ÷ 1 = 9 · 40 ÷ 8 = 5 · 6 ÷ 3 = 2 · 33 ÷ 11 = 3
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Hogwarts Harmony Heist — set in the Great Hall during the Magic Music Festival
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects