🦄 Cats, UnicornsGrade 7Reading: grades 5-6AdditionSubtractionMultiplicationIntegersDivision

The Mystery of the Missing Prism Crystal

The enchanted Prism Crystal has been swiped right before the annual Star Glow Festival! Detective Pawlock needs your math skills to examine the evidence, rule out suspects, and find the real culprit.

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	Magic Spell	Aura	Stance	Mane Color	Fears
Oliver Oatcake	Star Dust	Silver Glow	Left Paws First	Pastel Pink Mane	Squeaky Toys
Stella Sparkle	Rainbow Sparkles	Golden Shimmer	Right Paws First	Lavender Mane	Laser Pointers
Milo Moonbeam	Glow Whiskers	Silver Glow	Left Paws First	Sky Blue Mane	Catnip Bubbles
Leo Starling	Starlight Beam	Golden Shimmer	Left Paws First	Pastel Pink Mane	Catnip Bubbles
Tessa Velvet	Glow Whiskers	Cosmic Shine	Right Paws First	Pastel Pink Mane	Squeaky Toys
Hazel Hoof	Glow Whiskers	Cosmic Shine	Left Paws First	Lavender Mane	Catnip Bubbles
Winston Whinny	Glow Whiskers	Neon Aura	Left Paws First	Pastel Pink Mane	Squeaky Toys
Penelope Pounce	Star Dust	Silver Glow	Right Paws First	Sky Blue Mane	Squeaky Toys
Jasper Jellybean	Star Dust	Crystal Sparkle	Right Paws First	Lavender Mane	Squeaky Toys
Sam Sassafras	Rainbow Sparkles	Silver Glow	Left Paws First	Sky Blue Mane	Catnip Bubbles
Willow Whisker	Starlight Beam	Cosmic Shine	Left Paws First	Lavender Mane	Catnip Bubbles
Luna Lightpaw	Starlight Beam	Cosmic Shine	Right Paws First	Sky Blue Mane	Laser Pointers
Rosie Rainbow	Prism Shield	Crystal Sparkle	Left Paws First	Sky Blue Mane	Laser Pointers
Piper Prism	Glow Whiskers	Crystal Sparkle	Left Paws First	Pastel Pink Mane	Squeaky Toys
Toby Twinkle	Starlight Beam	Cosmic Shine	Left Paws First	Pastel Pink Mane	Squeaky Toys
Charlie Glitter	Starlight Beam	Neon Aura	Left Paws First	Sky Blue Mane	Laser Pointers
Zoe Zigzag	Rainbow Sparkles	Golden Shimmer	Right Paws First	Pastel Pink Mane	Squeaky Toys
Daisy Dazzle	Glow Whiskers	Cosmic Shine	Left Paws First	Lavender Mane	Squeaky Toys
Maya Meadows	Starlight Beam	Cosmic Shine	Left Paws First	Pastel Pink Mane	Laser Pointers
Cleo Cloudtail	Prism Shield	Cosmic Shine	Right Paws First	Lavender Mane	Squeaky Toys
Felix Frosthorn	Glow Whiskers	Golden Shimmer	Left Paws First	Pastel Pink Mane	Squeaky Toys

Clue 1

Addition

We totaled up the glitter tracks left in the main hallway to double check the magical aura.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

4327

2441

7339

5799

3108

5799

6730

7339

7236

4327

7532

7464

7339

5799

2195

7464

4327

2441

7986

3998

7339

2195

7339

7464

2195

7986

3108

4035

7986

1893 + 2434 =T

2739 + 4793 =D

2966 + 2833 =S

3025 + 3705 =P

2627 + 1371 =V

3260 + 4079 =E

2936 + 4300 =C

827 + 1368 =N

2148 + 1887 =R

1471 + 970 =H

3112 + 4352 =O

5332 + 2654 =A

1453 + 1655 =U

0/13 letters found

Clue 2

Subtraction

By subtracting the broken star gems from the inventory list, we found a secret message.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

4132

6923

7366

2507

7893

4102

1357

6852

4224

4132

2959

4132

7366

1357

7366

5899

4102

7366

4275

4132

1357

5778

6569

2959

4275

4224

6852

2959

4132

5430 - 1298 =T

9230 - 1864 =E

4333 - 58 =F

9513 - 3735 =A

9661 - 1768 =U

8542 - 1973 =W

7251 - 1352 =D

5641 - 3134 =C

7584 - 732 =R

5707 - 1605 =L

3164 - 205 =S

7352 - 429 =H

6164 - 4807 =P

6050 - 1826 =I

0/14 letters found

Clue 3

Multiplication facts (1-12)

Grouping the spell wands into even rows helped us spot footprint marks left by their stance.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

108

12 × 4 =T

7 × 4 =I

7 × 12 =Q

1 × 3 =A

1 × 1 =P

4 × 1 =H

7 × 11 =S

8 × 10 =L

6 × 7 =D

10 × 7 =K

12 × 3 =N

6 × 5 =C

9 × 11 =E

9 × 6 =Y

12 × 9 =U

3 × 6 =R

3 × 8 =F

9 × 9 =O

0/18 letters found

Clue 4

Integers

Calculating the elevation changes up the crystal tower revealed a stray mane fiber.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

(-8) + 13 =P

(-6) + 7 =R

3 - (-7) =T

2 - (-4) =W

11 - (-1) =S

(-14) + 18 =N

(-5) + 33 =B

17 - (-1) =F

11 - (-13) =H

(-6) + 32 =D

(-4) + 20 =L

19 - (-8) =M

(-14) + 25 =E

(-6) + 21 =K

(-9) + 17 =I

(-15) + 28 =A

(-8) + 10 =U

0/17 letters found

Clue 5

Division facts (1-12) — the last clue

Dividing the catnip treats among the guard team brought out a key clue about a weakness.

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

60 ÷ 6 = ?

30 ÷ 10 = ?

11 ÷ 11 = ?

33 ÷ 3 = ?

54 ÷ 9 = ?

8 ÷ 2 = ?

20 ÷ 4 = ?

45 ÷ 5 = ?

24 ÷ 3 = ?

6 ÷ 3 = ?

24 ÷ 2 = ?

Step 2 — cross out the sentence with each answer

1.The villain scattered star dust, then shone with silver glow.

2.The villain shot a starlight beam, then radiated neon aura.

3.The villain flashed glow whiskers, then beamed with crystal sparkle.

4.The villain scattered star dust, then beamed with crystal sparkle.

5.The villain flashed glow whiskers, then shone with silver glow.

6.The villain raised a prism shield, then radiated neon aura.

7.The villain shot a starlight beam, then sparkled with cosmic shine.

8.The villain scattered star dust, then radiated neon aura.

9.The villain cast rainbow sparkles, then radiated neon aura.

10.The villain flashed glow whiskers, then flared with golden shimmer.

11.The villain raised a prism shield, then shone with silver glow.

12.The villain cast rainbow sparkles, then sparkled with cosmic shine.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Mystery of the Missing Prism Crystal

Culprit: Toby Twinkle (Starlight Beam · Cosmic Shine · Left Paws First · Pastel Pink Mane · Squeaky Toys)

Clue 1 (Addition): "THE SUSPECT DOES NOT HAVE NEON AURA"
1893 + 2434 = 4327 (T) · 2739 + 4793 = 7532 (D) · 2966 + 2833 = 5799 (S) · 3025 + 3705 = 6730 (P) · 2627 + 1371 = 3998 (V) · 3260 + 4079 = 7339 (E) · 2936 + 4300 = 7236 (C) · 827 + 1368 = 2195 (N) · 2148 + 1887 = 4035 (R) · 1471 + 970 = 2441 (H) · 3112 + 4352 = 7464 (O) · 5332 + 2654 = 7986 (A) · 1453 + 1655 = 3108 (U)
Clue 2 (Subtraction): "THE CULPRIT STEPPED LEFT PAWS FIRST"
5430 - 1298 = 4132 (T) · 9230 - 1864 = 7366 (E) · 4333 - 58 = 4275 (F) · 9513 - 3735 = 5778 (A) · 9661 - 1768 = 7893 (U) · 8542 - 1973 = 6569 (W) · 7251 - 1352 = 5899 (D) · 5641 - 3134 = 2507 (C) · 7584 - 732 = 6852 (R) · 5707 - 1605 = 4102 (L) · 3164 - 205 = 2959 (S) · 7352 - 429 = 6923 (H) · 6164 - 4807 = 1357 (P) · 6050 - 1826 = 4224 (I)
Clue 3 (Multiplication facts (1-12)): "THE CULPRIT FLINCHED AT SQUEAKY TOYS"
12 × 4 = 48 (T) · 7 × 4 = 28 (I) · 7 × 12 = 84 (Q) · 1 × 3 = 3 (A) · 1 × 1 = 1 (P) · 4 × 1 = 4 (H) · 7 × 11 = 77 (S) · 8 × 10 = 80 (L) · 6 × 7 = 42 (D) · 10 × 7 = 70 (K) · 12 × 3 = 36 (N) · 6 × 5 = 30 (C) · 9 × 11 = 99 (E) · 9 × 6 = 54 (Y) · 12 × 9 = 108 (U) · 3 × 6 = 18 (R) · 3 × 8 = 24 (F) · 9 × 9 = 81 (O)
Clue 4 (Integers): "PASTEL PINK MANE FUR WAS LEFT BEHIND"
(-8) + 13 = 5 (P) · (-6) + 7 = 1 (R) · 3 - (-7) = 10 (T) · 2 - (-4) = 6 (W) · 11 - (-1) = 12 (S) · (-14) + 18 = 4 (N) · (-5) + 33 = 28 (B) · 17 - (-1) = 18 (F) · 11 - (-13) = 24 (H) · (-6) + 32 = 26 (D) · (-4) + 20 = 16 (L) · 19 - (-8) = 27 (M) · (-14) + 25 = 11 (E) · (-6) + 21 = 15 (K) · (-9) + 17 = 8 (I) · (-15) + 28 = 13 (A) · (-8) + 10 = 2 (U)
Clue 5 (Division facts (1-12)): surviving statement (box 7) → Toby Twinkle
60 ÷ 6 = 10 · 30 ÷ 10 = 3 · 11 ÷ 11 = 1 · 33 ÷ 3 = 11 · 54 ÷ 9 = 6 · 8 ÷ 2 = 4 · 20 ÷ 4 = 5 · 45 ÷ 5 = 9 · 24 ÷ 3 = 8 · 6 ÷ 3 = 2 · 24 ÷ 2 = 12

About this mystery

Grade level: Grade 7 math
Math topics: Addition, Subtraction, Multiplication, Integers, Division
Reading level: grades 5-6
Theme: The Mystery of the Missing Prism Crystal — set in Starlight Meadow Academy
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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