✨ WitchesGrade 4Reading: grades 3-4MultiplicationRoundingAdditionSubtractionDivision
The Case of the Missing Star Crystal
Someone snuck into the potion vault at Whispering Pines Witch Academy and snatched the rare Star Crystal! Headmistress Potionkeeper needs your detective skills to figure out which witch brewed up this trouble.
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 | Spell Type | Familiar | Stirring Hand | Hat Color | Magic Counter |
|---|---|---|---|---|---|
| Beatrix Spellman | Flame Spark Spell | Raven Companion | Right Handed Stir | Deep Purple Hat | Silver Bell |
| Nancy Downs | Echo Voice Spell | Raven Companion | Left Handed Stir | Midnight Black Hat | Silver Bell |
| Sarah Sanderson | Echo Voice Spell | Black Cat | Left Handed Stir | Deep Purple Hat | Salt Crystal |
| Circe Moon | Levitation Spell | Black Cat | Right Handed Stir | Emerald Green Hat | Silver Bell |
| Phoebe Halliwell | Shape Change Spell | Spotted Toad | Left Handed Stir | Deep Purple Hat | Silver Bell |
| Hilda Spellcraft | Frost Beam Spell | Black Cat | Right Handed Stir | Emerald Green Hat | Silver Bell |
| Glinda Finch | Echo Voice Spell | Spotted Toad | Left Handed Stir | Deep Purple Hat | Salt Crystal |
| Elphaba Drake | Flame Spark Spell | Raven Companion | Right Handed Stir | Emerald Green Hat | Silver Bell |
| Morgana Vane | Frost Beam Spell | Wise Owl | Left Handed Stir | Emerald Green Hat | Dried Sage |
| Winifred Sanderson | Echo Voice Spell | Fruit Bat | Left Handed Stir | Deep Purple Hat | Silver Bell |
| Rowan Nightshade | Levitation Spell | Fruit Bat | Right Handed Stir | Emerald Green Hat | Silver Bell |
| Agnes Broomfield | Frost Beam Spell | Wise Owl | Left Handed Stir | Emerald Green Hat | Silver Bell |
| Paige Halliwell | Echo Voice Spell | Spotted Toad | Left Handed Stir | Emerald Green Hat | Salt Crystal |
| Tabitha Moss | Levitation Spell | Raven Companion | Left Handed Stir | Deep Purple Hat | Silver Bell |
| Hazel Starling | Echo Voice Spell | Fruit Bat | Right Handed Stir | Midnight Black Hat | Silver Bell |
| Zelda Darkwood | Flame Spark Spell | Fruit Bat | Left Handed Stir | Deep Purple Hat | Silver Bell |
| Piper Halliwell | Levitation Spell | Raven Companion | Left Handed Stir | Midnight Black Hat | Salt Crystal |
| Mary Sanderson | Frost Beam Spell | Fruit Bat | Right Handed Stir | Emerald Green Hat | Salt Crystal |
| Bonnie Bennett | Flame Spark Spell | Spotted Toad | Left Handed Stir | Deep Purple Hat | Silver Bell |
| Sabrina Thorne | Flame Spark Spell | Spotted Toad | Right Handed Stir | Midnight Black Hat | Silver Bell |
| Ursula Blackwood | Echo Voice Spell | Spotted Toad | Right Handed Stir | Emerald Green Hat | Silver Bell |
Clue 1
Multiplication facts (1-12)
You inspect the potion classroom where cauldrons are arranged in neat rows along the stone walls.
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
20
56
24
108
9
40
40
28
9
25
2
12
24
144
25
12
T
20
56
28
108
24
28
144
3
12
T
20
T
20
24
2
T
20
12
28
2
10 × 2 =T
3 × 3 =I
2 × 1 =D
6 × 4 =E
7 × 8 =H
12 × 9 =V
12 × 12 =S
8 × 5 =L
3 × 1 =P
5 × 5 =N
3 × 4 =O
4 × 7 =A
0/12 letters found
Clue 2
Rounding
You check the magic crystal display which rounds cauldron temperatures to the nearest hundred.
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
300
110
1100
30
900
30
7000
1100
4300
T
300
200
90
30
30
1100
1100
1300
30
T
300
2300
20
20
2300
1300
130
200
2300
T
300
110
20
2300
130
110
T
300
110
90
1300
5000
Round 258 to the nearest hundredT
Round 31 to the nearest tenS
Round 865 to the nearest hundredU
Round 6,697 to the nearest thousandP
Round 221 to the nearest hundredW
Round 87 to the nearest tenA
Round 19 to the nearest tenR
Round 2,307 to the nearest hundredI
Round 1,072 to the nearest hundredE
Round 1,303 to the nearest hundredN
Round 4,279 to the nearest hundredC
Round 4,775 to the nearest thousandD
Round 131 to the nearest tenG
Round 108 to the nearest tenH
0/14 letters found
Clue 3
Addition
You gather up and tally all the potion vials left behind near the suspect footprints.
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
2867
3201
7114
8400
2069
5483
8688
2212
5483
8400
8400
8688
A
2867
7131
7864
7587
4430
9366
9366
7587
3201
9366
7587
4172
9366
7857
5483
2069
7114
8400
8400
A
2867
7114
7131
889 + 1978 =A
2590 + 4541 =N
2768 + 2715 =E
2983 + 5417 =L
4643 + 3214 =H
3180 + 3934 =I
1964 + 2466 =U
1703 + 1498 =S
4840 + 2747 =O
2623 + 1549 =P
1029 + 1040 =V
2871 + 5817 =R
693 + 1519 =B
3717 + 4147 =G
5477 + 3889 =T
0/15 letters found
Clue 4
Subtraction
You calculate missing spellbook pages by subtracting what remains on the classroom shelf.
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
6651
1295
4322
1017
A
6651
4251
8641
1523
5347
1657
1017
8998
8998
4251
8362
A
6651
4322
1017
7869
1298
1298
1523
4251
7324
A
6651
1295
5347
1523
3018
4251
8641
7344 - 693 =A
9681 - 4334 =F
5584 - 4286 =B
6211 - 4688 =O
5371 - 3714 =G
9025 - 4703 =T
11944 - 3582 =H
12143 - 4819 =W
9647 - 649 =E
8249 - 380 =I
1210 - 193 =R
7243 - 2992 =N
6840 - 3822 =U
3366 - 2071 =S
12087 - 3446 =D
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
You divide the total bundle of flying broomsticks equally among the coven towers to find a secret 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
35 ÷ 7 = ?
40 ÷ 5 = ?
4 ÷ 1 = ?
54 ÷ 9 = ?
100 ÷ 10 = ?
88 ÷ 8 = ?
108 ÷ 12 = ?
96 ÷ 8 = ?
11 ÷ 11 = ?
14 ÷ 2 = ?
24 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain transformed the golden trophy into a toad, then escaped into the night with a wise owl.
2.The villain froze the academy courtyard in ice, then flew away on a broom with a black cat.
3.The villain lit the witch tower with blue fire, then leapt into the shadows with a spotted toad.
4.The villain cast a floating spell on the library, then flew away on a broom with a black cat.
5.The villain lit the witch tower with blue fire, then vanished upward with a raven companion.
6.The villain cast a floating spell on the library, then leapt into the shadows with a spotted toad.
7.The villain froze the academy courtyard in ice, then leapt into the shadows with a spotted toad.
8.The villain cast a floating spell on the library, then fluttered into the rafters with a fruit bat.
9.The villain transformed the golden trophy into a toad, then leapt into the shadows with a spotted toad.
10.The villain transformed the golden trophy into a toad, then fluttered into the rafters with a fruit bat.
11.The villain echoed spooky whispers through the hall, then flew away on a broom with a black cat.
12.The villain lit the witch tower with blue fire, then flew away on a broom with a black cat.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Star Crystal
Culprit: Hilda Spellcraft (Frost Beam Spell · Black Cat · Right Handed Stir · Emerald Green Hat · Silver Bell)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT HAVE A SPOTTED TOAD"10 × 2 = 20 (T) · 3 × 3 = 9 (I) · 2 × 1 = 2 (D) · 6 × 4 = 24 (E) · 7 × 8 = 56 (H) · 12 × 9 = 108 (V) · 12 × 12 = 144 (S) · 8 × 5 = 40 (L) · 3 × 1 = 3 (P) · 5 × 5 = 25 (N) · 3 × 4 = 12 (O) · 4 × 7 = 28 (A)
- Clue 2 (Rounding): "THE SUSPECT WAS SEEN STIRRING WITH RIGHT HAND"Round 258 to the nearest hundred = 300 (T) · Round 31 to the nearest ten = 30 (S) · Round 865 to the nearest hundred = 900 (U) · Round 6,697 to the nearest thousand = 7000 (P) · Round 221 to the nearest hundred = 200 (W) · Round 87 to the nearest ten = 90 (A) · Round 19 to the nearest ten = 20 (R) · Round 2,307 to the nearest hundred = 2300 (I) · Round 1,072 to the nearest hundred = 1100 (E) · Round 1,303 to the nearest hundred = 1300 (N) · Round 4,279 to the nearest hundred = 4300 (C) · Round 4,775 to the nearest thousand = 5000 (D) · Round 131 to the nearest ten = 130 (G) · Round 108 to the nearest ten = 110 (H)
- Clue 3 (Addition): "A SILVER BELL RANG OUT TO STOP THE VILLAIN"889 + 1978 = 2867 (A) · 2590 + 4541 = 7131 (N) · 2768 + 2715 = 5483 (E) · 2983 + 5417 = 8400 (L) · 4643 + 3214 = 7857 (H) · 3180 + 3934 = 7114 (I) · 1964 + 2466 = 4430 (U) · 1703 + 1498 = 3201 (S) · 4840 + 2747 = 7587 (O) · 2623 + 1549 = 4172 (P) · 1029 + 1040 = 2069 (V) · 2871 + 5817 = 8688 (R) · 693 + 1519 = 2212 (B) · 3717 + 4147 = 7864 (G) · 5477 + 3889 = 9366 (T)
- Clue 4 (Subtraction): "A STRAND OF GREEN HAT RIBBON WAS FOUND"7344 - 693 = 6651 (A) · 9681 - 4334 = 5347 (F) · 5584 - 4286 = 1298 (B) · 6211 - 4688 = 1523 (O) · 5371 - 3714 = 1657 (G) · 9025 - 4703 = 4322 (T) · 11944 - 3582 = 8362 (H) · 12143 - 4819 = 7324 (W) · 9647 - 649 = 8998 (E) · 8249 - 380 = 7869 (I) · 1210 - 193 = 1017 (R) · 7243 - 2992 = 4251 (N) · 6840 - 3822 = 3018 (U) · 3366 - 2071 = 1295 (S) · 12087 - 3446 = 8641 (D)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Hilda Spellcraft35 ÷ 7 = 5 · 40 ÷ 5 = 8 · 4 ÷ 1 = 4 · 54 ÷ 9 = 6 · 100 ÷ 10 = 10 · 88 ÷ 8 = 11 · 108 ÷ 12 = 9 · 96 ÷ 8 = 12 · 11 ÷ 11 = 1 · 14 ÷ 2 = 7 · 24 ÷ 8 = 3
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Multiplication, Rounding, Addition, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Star Crystal — set in Whispering Pines Witch Academy
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects