🔎 Harry PotterGrade 3Reading: grades 3-4AdditionSubtractionPlace valueMulti-step word problemsDivision
The Potion Dungeon Mix-Up
Someone has snuck into the potion dungeons and mixed up all the sleeping draughts with giggling juice! The potions master is stuck laughing. We must find the rogue wizard who did this!
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 | Favorite Spell | Magical Pet | Wand Hand | Hair Color | Counter-Spell |
|---|---|---|---|---|---|
| Lavender Brown | Levitation Charm | Baby Dragon | Right-Handed | Jet Black | Lumos Charm |
| Parvati Patil | Levitation Charm | Black Cat | Right-Handed | Jet Black | Lumos Charm |
| Oliver Wood | Levitation Charm | Baby Dragon | Left-Handed | Sandy Blond | Riddikulus Charm |
| Susan Bones | Shield Charm | Screech Owl | Right-Handed | Sandy Blond | Riddikulus Charm |
| Gregory Goyle | Levitation Charm | Black Cat | Left-Handed | Sandy Blond | Expelliarmus Spell |
| George Weasley | Freezing Spell | Black Cat | Left-Handed | Sandy Blond | Lumos Charm |
| Padma Patil | Fire-Making Spell | Screech Owl | Left-Handed | Sandy Blond | Lumos Charm |
| Harry Potter | Freezing Spell | Barn Owl | Left-Handed | Jet Black | Riddikulus Charm |
| Hannah Abbott | Fire-Making Spell | Green Toad | Right-Handed | Sandy Blond | Riddikulus Charm |
| Cho Chang | Shield Charm | Green Toad | Left-Handed | Jet Black | Expelliarmus Spell |
| Draco Malfoy | Shield Charm | Barn Owl | Left-Handed | Sandy Blond | Riddikulus Charm |
| Vincent Crabbe | Vanishing Hex | Barn Owl | Left-Handed | Sandy Blond | Riddikulus Charm |
| Seamus Finnigan | Freezing Spell | Screech Owl | Left-Handed | Sandy Blond | Riddikulus Charm |
| Percy Weasley | Freezing Spell | Black Cat | Right-Handed | Jet Black | Riddikulus Charm |
| Cedric Diggory | Shield Charm | Green Toad | Left-Handed | Fiery Red | Expelliarmus Spell |
| Hermione Granger | Levitation Charm | Green Toad | Left-Handed | Sandy Blond | Expelliarmus Spell |
| Fred Weasley | Shield Charm | Screech Owl | Left-Handed | Sandy Blond | Riddikulus Charm |
| Ginny Weasley | Vanishing Hex | Barn Owl | Right-Handed | Fiery Red | Riddikulus Charm |
| Pansy Parkinson | Vanishing Hex | Black Cat | Left-Handed | Fiery Red | Lumos Charm |
| Colin Creevey | Shield Charm | Barn Owl | Right-Handed | Jet Black | Riddikulus Charm |
| Luna Lovegood | Levitation Charm | Screech Owl | Left-Handed | Fiery Red | Lumos Charm |
Clue 1
Addition
The Herbology teacher needs to count the Mandrake pots. Let us add the greenhouse tallies 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
748
974
406
884
882
925
925
286
882
234
752
343
406
539
234
343
T
748
974
286
884
406
286
796
286
796
556
752
392
286
744
343
234
243 + 505 =T
514 + 238 =D
280 + 645 =L
310 + 572 =I
357 + 527 =V
254 + 285 =S
255 + 489 =G
182 + 374 =Y
134 + 209 =O
151 + 241 =R
504 + 292 =B
78 + 156 =N
585 + 389 =H
92 + 194 =A
156 + 250 =E
0/15 letters found
Clue 2
Subtraction
We bought potion vials at Diagon Alley but dropped some on the cobblestones. Subtract the broken ones to get our second 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
222
569
275
145
473
275
185
185
735
485
145
845
485
145
T
222
735
298
T
222
569
485
185
275
857
T
222
569
485
161
218
340 - 118 =T
730 - 161 =H
193 - 8 =L
907 - 172 =W
173 - 12 =N
662 - 177 =A
661 - 188 =P
335 - 60 =E
978 - 121 =F
643 - 345 =I
247 - 102 =S
881 - 36 =C
527 - 309 =D
0/13 letters found
Clue 3
Place value
The magical lock on the restricted section has a three digit code. Look closely at the place values of the numbers to unlock the third 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
50
20
2000
400
1000
600
600
80
1000
40
300
20
200
1000
40
60
300
90
200
5000
10
80
600
80
4000
6000
20
T
50
2000
200
8000
20
80
200
10
What is the value of the 5 in 8,756?T
What is the value of the 4 in 347?N
What is the value of the 8 in 8,320?C
What is the value of the 3 in 387?S
What is the value of the 1 in 1,063?I
What is the value of the 1 in 8,518?M
What is the value of the 8 in 789?A
What is the value of the 9 in 8,794?F
What is the value of the 6 in 6,348?G
What is the value of the 2 in 8,238?R
What is the value of the 4 in 84,826?U
What is the value of the 5 in 5,380?O
What is the value of the 2 in 92,371?E
What is the value of the 4 in 2,400?V
What is the value of the 2 in 5,025?H
What is the value of the 6 in 678?L
What is the value of the 6 in 8,062?K
0/17 letters found
Clue 4
Multi-step word problems
The students are packing broomsticks into crates. They load several boxes then unpack a few broken ones. Work through these steps for the fourth clue!
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
S
9
16
17
36
8
33
40
O
17
36
There were 79 spellbooks in all. 2 Gryffindor House used 26 spellbooks each. The other 3 Gryffindor House shared the rest equally. How many spellbooks did each of the other Gryffindor House get?S
Prefect earned 5 spellbooks in each of 2 rounds, plus 33 bonus spellbooks. Then 7 spellbooks were lost. How many spellbooks are left?D
Prefect earned 8 chocolate frogs in each of 2 rounds, plus 6 bonus chocolate frogs. Then 14 chocolate frogs were lost. How many chocolate frogs are left?Y
Prefect collected 64 crystal vials in the morning and 32 crystal vials in the afternoon, then split them equally among 6 Gryffindor House. How many crystal vials did each get?A
There were 90 crystal vials in all. 2 Gryffindor House used 11 crystal vials each. The other 4 Gryffindor House shared the rest equally. How many crystal vials did each of the other Gryffindor House get?N
There were 388 crystal vials in all. 4 Gryffindor House used 37 crystal vials each. The other 6 Gryffindor House shared the rest equally. How many crystal vials did each of the other Gryffindor House get?L
Prefect earned 2 chocolate frogs in each of 3 rounds, plus 42 bonus chocolate frogs. Then 15 chocolate frogs were lost. How many chocolate frogs are left?B
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
We must share a batch of Bertie Botts Every Flavor Beans equally among the houses. Divide them up to reveal 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
30 ÷ 6 = ?
36 ÷ 6 = ?
8 ÷ 4 = ?
84 ÷ 7 = ?
40 ÷ 4 = ?
44 ÷ 4 = ?
24 ÷ 3 = ?
15 ÷ 5 = ?
24 ÷ 6 = ?
49 ÷ 7 = ?
45 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain used a freezing spell to chill the potion, then flew out the window with a screech owl.
2.The villain whispered a vanishing hex to hide the keys, then fled into the night with a screeching barn owl.
3.The villain whispered a vanishing hex to hide the keys, then flew out the window with a screech owl.
4.The villain shot a fire-making spell at the logs, then sneaked away while holding a baby dragon.
5.The villain raised a shield charm to block the door, then fled into the night with a screeching barn owl.
6.The villain raised a shield charm to block the door, then flew out the window with a screech owl.
7.The villain raised a shield charm to block the door, then sent a sneaky black cat to steal the recipe.
8.The villain shot a fire-making spell at the logs, then leapt over the desk with a green toad.
9.The villain cast a levitation charm to float the cauldron, then sneaked away while holding a baby dragon.
10.The villain used a freezing spell to chill the potion, then sneaked away while holding a baby dragon.
11.The villain whispered a vanishing hex to hide the keys, then sneaked away while holding a baby dragon.
12.The villain cast a levitation charm to float the cauldron, then sent a sneaky black cat to steal the recipe.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Potion Dungeon Mix-Up
Culprit: Seamus Finnigan (Freezing Spell · Screech Owl · Left-Handed · Sandy Blond · Riddikulus Charm)
- Clue 1 (Addition): "THE VILLAIN DOES NOT HAVE A BABY DRAGON"243 + 505 = 748 (T) · 514 + 238 = 752 (D) · 280 + 645 = 925 (L) · 310 + 572 = 882 (I) · 357 + 527 = 884 (V) · 254 + 285 = 539 (S) · 255 + 489 = 744 (G) · 182 + 374 = 556 (Y) · 134 + 209 = 343 (O) · 151 + 241 = 392 (R) · 504 + 292 = 796 (B) · 78 + 156 = 234 (N) · 585 + 389 = 974 (H) · 92 + 194 = 286 (A) · 156 + 250 = 406 (E)
- Clue 2 (Subtraction): "THE SPELL WAS CAST WITH A LEFT HAND"340 - 118 = 222 (T) · 730 - 161 = 569 (H) · 193 - 8 = 185 (L) · 907 - 172 = 735 (W) · 173 - 12 = 161 (N) · 662 - 177 = 485 (A) · 661 - 188 = 473 (P) · 335 - 60 = 275 (E) · 978 - 121 = 857 (F) · 643 - 345 = 298 (I) · 247 - 102 = 145 (S) · 881 - 36 = 845 (C) · 527 - 309 = 218 (D)
- Clue 3 (Place value): "THE VILLAIN SHRINKS FROM A LAUGHTER CHARM"What is the value of the 5 in 8,756? = 50 (T) · What is the value of the 4 in 347? = 40 (N) · What is the value of the 8 in 8,320? = 8000 (C) · What is the value of the 3 in 387? = 300 (S) · What is the value of the 1 in 1,063? = 1000 (I) · What is the value of the 1 in 8,518? = 10 (M) · What is the value of the 8 in 789? = 80 (A) · What is the value of the 9 in 8,794? = 90 (F) · What is the value of the 6 in 6,348? = 6000 (G) · What is the value of the 2 in 8,238? = 200 (R) · What is the value of the 4 in 84,826? = 4000 (U) · What is the value of the 5 in 5,380? = 5000 (O) · What is the value of the 2 in 92,371? = 2000 (E) · What is the value of the 4 in 2,400? = 400 (V) · What is the value of the 2 in 5,025? = 20 (H) · What is the value of the 6 in 678? = 600 (L) · What is the value of the 6 in 8,062? = 60 (K)
- Clue 4 (Multi-step word problems): "SANDY BLOND"There were 79 spellbooks in all. 2 Gryffindor House used 26 spellbooks each. The other 3 Gryffindor House shared the rest equally. How many spellbooks did each of the other Gryffindor House get? = 9 (S) · Prefect earned 5 spellbooks in each of 2 rounds, plus 33 bonus spellbooks. Then 7 spellbooks were lost. How many spellbooks are left? = 36 (D) · Prefect earned 8 chocolate frogs in each of 2 rounds, plus 6 bonus chocolate frogs. Then 14 chocolate frogs were lost. How many chocolate frogs are left? = 8 (Y) · Prefect collected 64 crystal vials in the morning and 32 crystal vials in the afternoon, then split them equally among 6 Gryffindor House. How many crystal vials did each get? = 16 (A) · There were 90 crystal vials in all. 2 Gryffindor House used 11 crystal vials each. The other 4 Gryffindor House shared the rest equally. How many crystal vials did each of the other Gryffindor House get? = 17 (N) · There were 388 crystal vials in all. 4 Gryffindor House used 37 crystal vials each. The other 6 Gryffindor House shared the rest equally. How many crystal vials did each of the other Gryffindor House get? = 40 (L) · Prefect earned 2 chocolate frogs in each of 3 rounds, plus 42 bonus chocolate frogs. Then 15 chocolate frogs were lost. How many chocolate frogs are left? = 33 (B)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Seamus Finnigan30 ÷ 6 = 5 · 36 ÷ 6 = 6 · 8 ÷ 4 = 2 · 84 ÷ 7 = 12 · 40 ÷ 4 = 10 · 44 ÷ 4 = 11 · 24 ÷ 3 = 8 · 15 ÷ 5 = 3 · 24 ÷ 6 = 4 · 49 ÷ 7 = 7 · 45 ÷ 5 = 9
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Addition, Subtraction, Place value, Multi-step word problems, Division
- Reading level
- grades 3-4
- Theme
- The Potion Dungeon Mix-Up — set in Frogstone School of Wizardry
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects