🦄 UnicornsGrade 6Reading: grades 5-6AdditionMultiplicationPercentagesExponentsDivision

The Case of the Missing Rainbow Horn

Someone snuck into the Starlight Temple and snatched the Sacred Prism Horn. The culprit left magical clues across the cloud meadow. Use your deduction skills to unmask the rogue unicorn.

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 Specialty	Aura Charm	Dominant Hoof	Mane Style	Favorite Snack
Glimmer	Cloud Sculpting	Sparkle Shield	Right Hoofed	Golden Ringlets	Sugar Apples
Solstice	Moon Beaming	Sparkle Shield	Left Hoofed	Golden Ringlets	Moonberry Pies
Barnaby	Rainbow Weaving	Prism Flash	Right Hoofed	Golden Ringlets	Sugar Apples
Sparkle	Moon Beaming	Sparkle Shield	Right Hoofed	Silver Braids	Sugar Apples
Sunbeam	Crystal Humming	Cosmic Breeze	Right Hoofed	Silver Braids	Sugar Apples
Skye	Rainbow Weaving	Glitter Glow	Right Hoofed	Silver Braids	Honey Oat Bites
Bramble	Cloud Sculpting	Prism Flash	Left Hoofed	Golden Ringlets	Sugar Apples
Coronet	Moon Beaming	Glitter Glow	Left Hoofed	Neon Spikes	Moonberry Pies
Whisper	Rainbow Weaving	Sparkle Shield	Right Hoofed	Golden Ringlets	Sugar Apples
Pippin	Crystal Humming	Prism Flash	Right Hoofed	Silver Braids	Sugar Apples
Sterling	Rainbow Weaving	Prism Flash	Left Hoofed	Silver Braids	Sugar Apples
Vesper	Star Blasting	Glitter Glow	Left Hoofed	Silver Braids	Sugar Apples
Nova	Moon Beaming	Sparkle Shield	Left Hoofed	Silver Braids	Honey Oat Bites
Dawnburst	Cloud Sculpting	Cosmic Breeze	Right Hoofed	Golden Ringlets	Moonberry Pies
Starling	Star Blasting	Sparkle Shield	Left Hoofed	Golden Ringlets	Honey Oat Bites
Celestia	Cloud Sculpting	Cosmic Breeze	Right Hoofed	Silver Braids	Sugar Apples
Radiance	Moon Beaming	Starlight Ring	Left Hoofed	Silver Braids	Sugar Apples
Astral	Cloud Sculpting	Glitter Glow	Right Hoofed	Silver Braids	Sugar Apples
Orion	Rainbow Weaving	Cosmic Breeze	Right Hoofed	Golden Ringlets	Honey Oat Bites
Sundance	Star Blasting	Starlight Ring	Right Hoofed	Golden Ringlets	Moonberry Pies
Luna	Moon Beaming	Cosmic Breeze	Right Hoofed	Neon Spikes	Honey Oat Bites

Clue 1

Addition

Detective Starling tallied the total number of glowing crystals gathered from three different meadow shrines to open the encrypted scroll.

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

2604

5358

5007

5471

7851

7803

5772

7851

7056

2672

9574

5007

6415

7056

9574

2604

4190

6415

5007

4173

5483

7851

6415

6460

6180

7803

5772

6415

5358

908 + 1696 =T

4357 + 3494 =I

2175 + 3183 =H

1729 + 3278 =E

1252 + 1420 =D

3393 + 2078 =V

1645 + 2545 =U

4433 + 2623 =N

5411 + 4163 =O

2149 + 4311 =M

3670 + 1813 =R

2184 + 3996 =F

2791 + 2981 =A

2778 + 1395 =P

2956 + 3459 =S

3287 + 4516 =L

0/16 letters found

Clue 2

Multiplication facts (1-12)

The team inspected grid arrays of cloud tiles near the vault, calculating the total area to find the hidden lock mechanism.

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

144

108

121

144

121

144

108

3 × 1 =R

1 × 7 =W

11 × 11 =O

7 × 9 =E

11 × 7 =D

1 × 1 =U

4 × 11 =P

9 × 9 =N

3 × 5 =T

8 × 11 =F

3 × 11 =S

12 × 12 =I

9 × 12 =H

2 × 5 =G

0/14 letters found

Clue 3

Percentages

A magical purity meter displayed what percentage of star essence remained in the temple reservoir after the break-in.

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

10% of 50 =A

5% of 180 =T

50% of 22 =P

50% of 76 =O

20% of 95 =S

25% of 172 =H

25% of 8 =N

40% of 35 =E

10% of 170 =W

25% of 112 =R

60% of 20 =C

50% of 70 =G

50% of 52 =D

5% of 120 =L

60% of 30 =U

0/15 letters found

Clue 4

Exponents

The thief left an escalating spell pattern that doubled in strength with each step taken across the cloud bridge.

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

343

324

225

169

125

225

169

324

225

324

289

243

196

125

144

196

324

5^2 =S

6^2 =I

15^2 =R

9^2 =U

3^2 =A

3^5 =G

7^2 =W

14^2 =H

13^2 =D

4^3 =B

18^2 =E

3^3 =V

12^2 =O

7^3 =L

2^3 =N

5^3 =T

17^2 =C

0/17 letters found

Clue 5

Division facts (1-12) — the last clue

The guard divided a bag of enchanted sugar cubes equally among five stable patrols to gather witness reports.

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

66 ÷ 11 = ?

4 ÷ 4 = ?

77 ÷ 7 = ?

56 ÷ 8 = ?

9 ÷ 1 = ?

15 ÷ 5 = ?

40 ÷ 5 = ?

55 ÷ 11 = ?

12 ÷ 1 = ?

10 ÷ 1 = ?

8 ÷ 4 = ?

Step 2 — cross out the sentence with each answer

1.The villain focused moon beams, then activated sparkle shield.

2.The villain sculpted cloud walls, then flashed prism light.

3.The villain blasted star bursts, then blew cosmic breeze.

4.The villain sculpted cloud walls, then shattered glitter glow.

5.The villain blasted star bursts, then summoned starlight rings.

6.The villain sculpted cloud walls, then blew cosmic breeze.

7.The villain wove rainbow threads, then flashed prism light.

8.The villain focused moon beams, then flashed prism light.

9.The villain focused moon beams, then shattered glitter glow.

10.The villain hummed crystal notes, then shattered glitter glow.

11.The villain hummed crystal notes, then blew cosmic breeze.

12.The villain focused moon beams, then summoned starlight rings.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Case of the Missing Rainbow Horn

Culprit: Astral (Cloud Sculpting · Glitter Glow · Right Hoofed · Silver Braids · Sugar Apples)

Clue 1 (Addition): "THE VILLAIN DOES NOT USE PRISM FLASH"
908 + 1696 = 2604 (T) · 4357 + 3494 = 7851 (I) · 2175 + 3183 = 5358 (H) · 1729 + 3278 = 5007 (E) · 1252 + 1420 = 2672 (D) · 3393 + 2078 = 5471 (V) · 1645 + 2545 = 4190 (U) · 4433 + 2623 = 7056 (N) · 5411 + 4163 = 9574 (O) · 2149 + 4311 = 6460 (M) · 3670 + 1813 = 5483 (R) · 2184 + 3996 = 6180 (F) · 2791 + 2981 = 5772 (A) · 2778 + 1395 = 4173 (P) · 2956 + 3459 = 6415 (S) · 3287 + 4516 = 7803 (L)
Clue 2 (Multiplication facts (1-12)): "RIGHT HOOF PRINTS WERE SPOTTED IN THE DUST"
3 × 1 = 3 (R) · 1 × 7 = 7 (W) · 11 × 11 = 121 (O) · 7 × 9 = 63 (E) · 11 × 7 = 77 (D) · 1 × 1 = 1 (U) · 4 × 11 = 44 (P) · 9 × 9 = 81 (N) · 3 × 5 = 15 (T) · 8 × 11 = 88 (F) · 3 × 11 = 33 (S) · 12 × 12 = 144 (I) · 9 × 12 = 108 (H) · 2 × 5 = 10 (G)
Clue 3 (Percentages): "A CHEWED SUGAR APPLE CORE WAS AT THE SCENE"
10% of 50 = 5 (A) · 5% of 180 = 9 (T) · 50% of 22 = 11 (P) · 50% of 76 = 38 (O) · 20% of 95 = 19 (S) · 25% of 172 = 43 (H) · 25% of 8 = 2 (N) · 40% of 35 = 14 (E) · 10% of 170 = 17 (W) · 25% of 112 = 28 (R) · 60% of 20 = 12 (C) · 50% of 70 = 35 (G) · 50% of 52 = 26 (D) · 5% of 120 = 6 (L) · 60% of 30 = 18 (U)
Clue 4 (Exponents): "SILVER BRAID STRANDS WERE CAUGHT ON BUSHES"
5^2 = 25 (S) · 6^2 = 36 (I) · 15^2 = 225 (R) · 9^2 = 81 (U) · 3^2 = 9 (A) · 3^5 = 243 (G) · 7^2 = 49 (W) · 14^2 = 196 (H) · 13^2 = 169 (D) · 4^3 = 64 (B) · 18^2 = 324 (E) · 3^3 = 27 (V) · 12^2 = 144 (O) · 7^3 = 343 (L) · 2^3 = 8 (N) · 5^3 = 125 (T) · 17^2 = 289 (C)
Clue 5 (Division facts (1-12)): surviving statement (box 4) → Astral
66 ÷ 11 = 6 · 4 ÷ 4 = 1 · 77 ÷ 7 = 11 · 56 ÷ 8 = 7 · 9 ÷ 1 = 9 · 15 ÷ 5 = 3 · 40 ÷ 5 = 8 · 55 ÷ 11 = 5 · 12 ÷ 1 = 12 · 10 ÷ 1 = 10 · 8 ÷ 4 = 2

About this mystery

Grade level: Grade 6 math
Math topics: Addition, Multiplication, Percentages, Exponents, Division
Reading level: grades 5-6
Theme: The Case of the Missing Rainbow Horn — set in Starlight Meadow
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

More free printable math cases

6th grade worksheets Addition worksheets Multiplication worksheets Division worksheets Percentages worksheets Exponents worksheets All worksheets →

The Great Locker Room Prankster

Grade 6

The Great Fossil Park Mystery

Grade 6

The Halloween Pumpkin Phantom

Grade 6

The Case of the Golden Compass

Grade 6