🔎 Harry Potter book 7Grade 5Reading: grades 3-4Fractions of a numberOrder of operationsMultiplicationRoundingDivision
The Secret of the Forest Camp
A sneaky rogue Snatcher has crossed the camp boundaries and stolen the Golden Snitch containing the Resurrection Stone! Work together to find who did it before they escape to Malfoy Manor.
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 Spell | Secret Relic | Wand Hand | Travel Hood | Fear of |
|---|---|---|---|---|---|
| Xenophilius Lovegood | Muffliato | Invisibility Cloak | Right Handed | Black Hood | Dementors |
| Bill Weasley | Muffliato | Peruvian Powder | Left Handed | Black Hood | Mandrakes |
| Ron Weasley | Sectumsempra | Peruvian Powder | Right Handed | Red Hood | Mandrakes |
| Severus Snape | Confringo | Invisibility Cloak | Left Handed | Black Hood | Mandrakes |
| Luna Lovegood | Confringo | Resurrection Stone | Left Handed | Grey Hood | Mandrakes |
| Draco Malfoy | Expulso | Deluminator | Left Handed | Grey Hood | Devil Snare |
| George Weasley | Confringo | Elder Wand | Right Handed | Red Hood | Mandrakes |
| Bellatrix Lestrange | Expulso | Elder Wand | Right Handed | Grey Hood | Mandrakes |
| Kingsley Shacklebolt | Protego Totalum | Invisibility Cloak | Left Handed | Black Hood | Mandrakes |
| Fleur Delacour | Expulso | Elder Wand | Left Handed | Grey Hood | Mandrakes |
| Hermione Granger | Muffliato | Resurrection Stone | Left Handed | Grey Hood | Mandrakes |
| Harry Potter | Protego Totalum | Resurrection Stone | Left Handed | Red Hood | Devil Snare |
| Ginny Weasley | Protego Totalum | Peruvian Powder | Right Handed | Red Hood | Devil Snare |
| Narcissa Malfoy | Sectumsempra | Peruvian Powder | Right Handed | Red Hood | Dementors |
| Neville Longbottom | Confringo | Peruvian Powder | Left Handed | Grey Hood | Mandrakes |
| Fred Weasley | Confringo | Invisibility Cloak | Right Handed | Black Hood | Devil Snare |
| Scabior | Muffliato | Resurrection Stone | Left Handed | Red Hood | Devil Snare |
| Lucius Malfoy | Muffliato | Resurrection Stone | Left Handed | Black Hood | Mandrakes |
| Remus Lupin | Sectumsempra | Deluminator | Left Handed | Grey Hood | Mandrakes |
| Gregory Goyle | Confringo | Peruvian Powder | Right Handed | Red Hood | Dementors |
| Nymphadora Tonks | Sectumsempra | Deluminator | Right Handed | Grey Hood | Devil Snare |
Clue 1
Fractions of a number
Harry counts the leftover healing potion bottles in the medicine box. Only a fraction of the bottles are still full, which leads us to a 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
34
11
32
10
23
19
19
15
23
31
8
12
32
26
31
12
T
34
11
15
10
32
29
32
39
5
10
23
15
31
29
12
40
8
32
39
1/3 of 102 =T
2/4 of 58 =P
4/10 of 30 =O
1/2 of 62 =N
1/3 of 30 =V
8/10 of 40 =E
2/10 of 115 =I
2/3 of 60 =W
1/5 of 25 =U
1/10 of 190 =L
4/8 of 22 =H
1/4 of 156 =R
5/10 of 52 =S
1/3 of 24 =D
1/3 of 45 =A
0/15 letters found
Clue 2
Order of operations
Hermione solves the magical equation locked on the Snatcher's wooden chest. Doing the steps in the right order reveals the next 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
18
79
42
59
17
76
13
42
15
59
42
77
42
79
51
15
30
42
24
T
18
79
51
77
22
42
22
56
51
77
22
15
43
51
17
52
3 × 10 - 12 =T
5 × 9 - 23 =D
1 + 3 × 4 =M
13 + 8 × 8 =N
6 + 4 × 6 =L
4 + 8 × 9 =I
18 + 6 × 4 =E
7 × 9 - 12 =A
2 + 3 × 5 =R
9 + 5 × 3 =F
9 + 2 × 3 =S
9 × 12 - 29 =H
48 + 2 × 4 =W
32 + 3 × 9 =C
19 + 3 × 8 =P
7 × 11 - 25 =K
0/16 letters found
Clue 3
Multiplication facts (1-12)
Ron counts the stacks of silver Sickles stolen from the camp. He multiplies the rows to find how many coins are gone and gets a 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
42
99
55
5
72
90
90
144
72
66
30
90
4
6
6
55
28
55
144
80
77
64
10
80
2
144
66
28
80
144
21
55
77
6 × 7 =T
4 × 7 =D
10 × 8 =R
9 × 10 =L
5 × 6 =P
3 × 7 =K
2 × 1 =M
12 × 12 =A
11 × 7 =S
9 × 8 =I
1 × 10 =O
8 × 8 =F
1 × 5 =V
9 × 11 =H
2 × 3 =G
11 × 6 =N
11 × 5 =E
1 × 4 =U
0/18 letters found
Clue 4
Rounding
The magical sneakoscope spins and flashes rapidly. Its spinning speed rounds to the nearest ten, giving us a clear clue about the thief.
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
2300
230
3000
70
300
T
2300
200
3000
900
900
900
290
70
290
2000
430
900
T
2300
90
20
130
3000
90
230
4300
4300
2000
130
3000
T
2300
130
3000
290
T
2300
Round 2,253 to the nearest hundredT
Round 430 to the nearest tenU
Round 4,259 to the nearest hundredO
Round 67 to the nearest tenW
Round 277 to the nearest hundredI
Round 292 to the nearest tenA
Round 232 to the nearest tenH
Round 3,191 to the nearest thousandE
Round 176 to the nearest hundredN
Round 2,335 to the nearest thousandD
Round 129 to the nearest tenR
Round 902 to the nearest hundredS
Round 86 to the nearest tenY
Round 21 to the nearest tenG
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
We must divide the remaining dragon liver treats equally among the guard owls. The share each owl gets points to 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
2 ÷ 2 = ?
12 ÷ 1 = ?
16 ÷ 8 = ?
21 ÷ 7 = ?
30 ÷ 5 = ?
132 ÷ 12 = ?
35 ÷ 5 = ?
50 ÷ 5 = ?
24 ÷ 6 = ?
8 ÷ 1 = ?
63 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain whispers muffliato, then turns a resurrection stone.
2.The villain casts confringo at the tent, then turns a resurrection stone.
3.The villain whispers muffliato, then points the elder wand.
4.The villain whispers muffliato, then throws peruvian powder.
5.The villain slashes with sectumsempra, then clicks a dark deluminator.
6.The villain casts confringo at the tent, then throws peruvian powder.
7.The villain whispers muffliato, then clicks a dark deluminator.
8.The villain sets up protego totalum, then throws peruvian powder.
9.The villain slashes with sectumsempra, then points the elder wand.
10.The villain casts confringo at the tent, then points the elder wand.
11.The villain sets up protego totalum, then slips under an invisibility cloak.
12.The villain fires an expulso blast, then points the elder wand.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Secret of the Forest Camp
Culprit: Remus Lupin (Sectumsempra · Deluminator · Left Handed · Grey Hood · Mandrakes)
- Clue 1 (Fractions of a number): "THE VILLAIN DOES NOT HAVE PERUVIAN POWDER"1/3 of 102 = 34 (T) · 2/4 of 58 = 29 (P) · 4/10 of 30 = 12 (O) · 1/2 of 62 = 31 (N) · 1/3 of 30 = 10 (V) · 8/10 of 40 = 32 (E) · 2/10 of 115 = 23 (I) · 2/3 of 60 = 40 (W) · 1/5 of 25 = 5 (U) · 1/10 of 190 = 19 (L) · 4/8 of 22 = 11 (H) · 1/4 of 156 = 39 (R) · 5/10 of 52 = 26 (S) · 1/3 of 24 = 8 (D) · 1/3 of 45 = 15 (A)
- Clue 2 (Order of operations): "THE CRIME SCENE HAS LEFT HANDED WAND SPARK"3 × 10 - 12 = 18 (T) · 5 × 9 - 23 = 22 (D) · 1 + 3 × 4 = 13 (M) · 13 + 8 × 8 = 77 (N) · 6 + 4 × 6 = 30 (L) · 4 + 8 × 9 = 76 (I) · 18 + 6 × 4 = 42 (E) · 7 × 9 - 12 = 51 (A) · 2 + 3 × 5 = 17 (R) · 9 + 5 × 3 = 24 (F) · 9 + 2 × 3 = 15 (S) · 9 × 12 - 29 = 79 (H) · 48 + 2 × 4 = 56 (W) · 32 + 3 × 9 = 59 (C) · 19 + 3 × 8 = 43 (P) · 7 × 11 - 25 = 52 (K)
- Clue 3 (Multiplication facts (1-12)): "THE VILLAIN PLUGGED EARS FOR MANDRAKES"6 × 7 = 42 (T) · 4 × 7 = 28 (D) · 10 × 8 = 80 (R) · 9 × 10 = 90 (L) · 5 × 6 = 30 (P) · 3 × 7 = 21 (K) · 2 × 1 = 2 (M) · 12 × 12 = 144 (A) · 11 × 7 = 77 (S) · 9 × 8 = 72 (I) · 1 × 10 = 10 (O) · 8 × 8 = 64 (F) · 1 × 5 = 5 (V) · 9 × 11 = 99 (H) · 2 × 3 = 6 (G) · 11 × 6 = 66 (N) · 11 × 5 = 55 (E) · 1 × 4 = 4 (U)
- Clue 4 (Rounding): "THE WITNESS SAW A DUSTY GREY HOOD RETREAT"Round 2,253 to the nearest hundred = 2300 (T) · Round 430 to the nearest ten = 430 (U) · Round 4,259 to the nearest hundred = 4300 (O) · Round 67 to the nearest ten = 70 (W) · Round 277 to the nearest hundred = 300 (I) · Round 292 to the nearest ten = 290 (A) · Round 232 to the nearest ten = 230 (H) · Round 3,191 to the nearest thousand = 3000 (E) · Round 176 to the nearest hundred = 200 (N) · Round 2,335 to the nearest thousand = 2000 (D) · Round 129 to the nearest ten = 130 (R) · Round 902 to the nearest hundred = 900 (S) · Round 86 to the nearest ten = 90 (Y) · Round 21 to the nearest ten = 20 (G)
- Clue 5 (Division facts (1-12)): surviving statement (box 5) → Remus Lupin2 ÷ 2 = 1 · 12 ÷ 1 = 12 · 16 ÷ 8 = 2 · 21 ÷ 7 = 3 · 30 ÷ 5 = 6 · 132 ÷ 12 = 11 · 35 ÷ 5 = 7 · 50 ÷ 5 = 10 · 24 ÷ 6 = 4 · 8 ÷ 1 = 8 · 63 ÷ 7 = 9
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Fractions of a number, Order of operations, Multiplication, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Secret of the Forest Camp — set in The Forest of Dean
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects