🦄 UnicornsGrade 6Reading: grades 5-6Place valuePercentagesExponentsOrder of operationsDivision
Mystery of the Missing Crystal Horn
Someone stole the sacred Crystal Horn from Rainbow Valley! Inspect the clues left around the Glade 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 Power | Enchanted Gear | Hoof Mark | Mane Style | Banishing Gem |
|---|---|---|---|---|---|
| Prancer | Rainbow Beams | Emerald Bell | Right Hoof Print | Braided Mane | Sunstone Gem |
| Buttercup | Rainbow Beams | Diamond Bridle | Right Hoof Print | Braided Mane | Sunstone Gem |
| Ember | Crystal Blast | Golden Horseshoe | Left Hoof Print | Glittery Mane | Starstone Gem |
| Breeze | Starlight Shield | Diamond Bridle | Right Hoof Print | Braided Mane | Sunstone Gem |
| Silverbell | Rainbow Beams | Sapphire Tiara | Left Hoof Print | Braided Mane | Sunstone Gem |
| Radiance | Cloud Hopping | Sapphire Tiara | Right Hoof Print | Braided Mane | Moonstone Gem |
| Sunburst | Cloud Hopping | Golden Horseshoe | Left Hoof Print | Glittery Mane | Starstone Gem |
| Whisper | Rainbow Beams | Ruby Saddle | Left Hoof Print | Braided Mane | Sunstone Gem |
| Twilight | Sparkle Teleport | Golden Horseshoe | Right Hoof Print | Floating Mane | Starstone Gem |
| Moonbeam | Rainbow Beams | Diamond Bridle | Left Hoof Print | Glittery Mane | Moonstone Gem |
| Aura | Starlight Shield | Diamond Bridle | Right Hoof Print | Glittery Mane | Sunstone Gem |
| Velvet | Crystal Blast | Sapphire Tiara | Right Hoof Print | Glittery Mane | Starstone Gem |
| Meadow | Starlight Shield | Golden Horseshoe | Right Hoof Print | Floating Mane | Moonstone Gem |
| Glimmer | Sparkle Teleport | Sapphire Tiara | Right Hoof Print | Floating Mane | Starstone Gem |
| Glitterhorn | Sparkle Teleport | Sapphire Tiara | Right Hoof Print | Floating Mane | Sunstone Gem |
| Celestia | Starlight Shield | Golden Horseshoe | Right Hoof Print | Braided Mane | Sunstone Gem |
| Skydancer | Crystal Blast | Diamond Bridle | Left Hoof Print | Glittery Mane | Starstone Gem |
| Starlight | Rainbow Beams | Diamond Bridle | Left Hoof Print | Glittery Mane | Sunstone Gem |
| Sparkle | Starlight Shield | Emerald Bell | Right Hoof Print | Glittery Mane | Moonstone Gem |
| Jewel | Sparkle Teleport | Sapphire Tiara | Right Hoof Print | Braided Mane | Sunstone Gem |
| Frosting | Rainbow Beams | Ruby Saddle | Left Hoof Print | Braided Mane | Starstone Gem |
Clue 1
Place value
The magical lock on the vault door shows digits glowing in specific place values.
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
400
100
30
2000
300
2000
9000
30
80
T
400
200
10
30
2000
50
10
T
400
100
500
70
30
500
50
30
90
30
20
500
5000
200
60
30
5000
5000
What is the value of the 4 in 863,477?T
What is the value of the 9 in 524,796?M
What is the value of the 3 in 50,639?E
What is the value of the 6 in 817,062?B
What is the value of the 8 in 11,281?C
What is the value of the 2 in 52,759?S
What is the value of the 2 in 441,205?D
What is the value of the 9 in 79,183?P
What is the value of the 5 in 125,776?L
What is the value of the 1 in 462,915?O
What is the value of the 7 in 804,370?V
What is the value of the 2 in 86,520?R
What is the value of the 5 in 941,456?N
What is the value of the 1 in 777,129?H
What is the value of the 3 in 876,394?U
What is the value of the 5 in 371,528?A
0/16 letters found
Clue 2
Percentages
A glittering potion flask marks the percentage of magic remaining in the glade.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
D
24
20
20
22
D
24
7
3
41
30
20
5
34
41
17
20
1
5
41
20
17
5
D
24
5
34
4
1
17
41
17
8
8
40
22
34
4
30
41
25% of 96 =D
25% of 164 =T
20% of 150 =N
5% of 340 =H
5% of 60 =S
20% of 25 =A
50% of 8 =I
10% of 80 =O
10% of 340 =R
25% of 80 =E
25% of 88 =P
5% of 20 =G
5% of 800 =F
20% of 35 =U
0/14 letters found
Clue 3
Exponents
An enchanted stone temple multiplies power levels exponentially across its ancient seals.
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
27
9
64
125
49
36
36
400
49
243
216
9
256
400
243
144
81
400
4
144
225
256
361
343
400
216
100
243
216
T
27
361
243
64
169
64
343
3^3 =T
6^2 =L
15^2 =F
20^2 =A
3^4 =B
7^3 =M
19^2 =O
12^2 =K
6^3 =S
10^2 =U
2^6 =E
13^2 =G
7^2 =I
3^5 =N
2^2 =C
3^2 =H
5^3 =V
4^4 =R
0/18 letters found
Clue 4
Order of operations
A mysterious spell scroll requires solving operations in a strict step by step order.
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
77
26
14
43
80
41
15
26
14
41
78
26
38
62
A
77
43
60
29
A
77
38
76
53
15
60
A
77
19
62
A
77
14
60
15
60
29
A
77
43
15
8 × 12 - 19 =A
7 × 9 - 10 =H
6 × 4 - 5 =B
9 × 10 - 14 =C
7 × 6 - 13 =M
12 × 8 - 16 =G
12 × 8 - 18 =K
7 × 12 - 22 =R
5 + 2 × 5 =E
5 × 3 - 1 =I
3 × 12 - 10 =S
10 × 5 - 7 =N
9 × 7 - 3 =D
9 × 7 - 22 =L
5 × 9 - 7 =T
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
A chest of star crystals must be shared equally among the glade guardians to reveal the 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
15 ÷ 3 = ?
72 ÷ 9 = ?
90 ÷ 9 = ?
14 ÷ 7 = ?
33 ÷ 11 = ?
9 ÷ 1 = ?
84 ÷ 7 = ?
110 ÷ 10 = ?
36 ÷ 9 = ?
11 ÷ 11 = ?
60 ÷ 10 = ?
Step 2 — cross out the sentence with each answer
1.The villain used sparkle teleport, then polished a golden horseshoe.
2.The villain started cloud hopping, then rang an emerald bell.
3.The villain fired a crystal blast, then buckled a diamond bridle.
4.The villain shot rainbow beams, then adjusted a sapphire tiara.
5.The villain used sparkle teleport, then adjusted a sapphire tiara.
6.The villain used sparkle teleport, then rang an emerald bell.
7.The villain shot rainbow beams, then buckled a diamond bridle.
8.The villain raised a starlight shield, then buckled a diamond bridle.
9.The villain shot rainbow beams, then polished a golden horseshoe.
10.The villain raised a starlight shield, then polished a golden horseshoe.
11.The villain raised a starlight shield, then adjusted their ruby saddle.
12.The villain started cloud hopping, then buckled a diamond bridle.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — Mystery of the Missing Crystal Horn
Culprit: Buttercup (Rainbow Beams · Diamond Bridle · Right Hoof Print · Braided Mane · Sunstone Gem)
- Clue 1 (Place value): "THE SUSPECT DOES NOT HAVE AN EMERALD BELL"What is the value of the 4 in 863,477? = 400 (T) · What is the value of the 9 in 524,796? = 90 (M) · What is the value of the 3 in 50,639? = 30 (E) · What is the value of the 6 in 817,062? = 60 (B) · What is the value of the 8 in 11,281? = 80 (C) · What is the value of the 2 in 52,759? = 2000 (S) · What is the value of the 2 in 441,205? = 200 (D) · What is the value of the 9 in 79,183? = 9000 (P) · What is the value of the 5 in 125,776? = 5000 (L) · What is the value of the 1 in 462,915? = 10 (O) · What is the value of the 7 in 804,370? = 70 (V) · What is the value of the 2 in 86,520? = 20 (R) · What is the value of the 5 in 941,456? = 50 (N) · What is the value of the 1 in 777,129? = 100 (H) · What is the value of the 3 in 876,394? = 300 (U) · What is the value of the 5 in 371,528? = 500 (A)
- Clue 2 (Percentages): "DEEP DUST NEAR THE GATE HAD A RIGHT HOOF PRINT"25% of 96 = 24 (D) · 25% of 164 = 41 (T) · 20% of 150 = 30 (N) · 5% of 340 = 17 (H) · 5% of 60 = 3 (S) · 20% of 25 = 5 (A) · 50% of 8 = 4 (I) · 10% of 80 = 8 (O) · 10% of 340 = 34 (R) · 25% of 80 = 20 (E) · 25% of 88 = 22 (P) · 5% of 20 = 1 (G) · 5% of 800 = 40 (F) · 20% of 35 = 7 (U)
- Clue 3 (Exponents): "THE VILLAIN SHRANK BACK FROM A SUNSTONE GEM"3^3 = 27 (T) · 6^2 = 36 (L) · 15^2 = 225 (F) · 20^2 = 400 (A) · 3^4 = 81 (B) · 7^3 = 343 (M) · 19^2 = 361 (O) · 12^2 = 144 (K) · 6^3 = 216 (S) · 10^2 = 100 (U) · 2^6 = 64 (E) · 13^2 = 169 (G) · 7^2 = 49 (I) · 3^5 = 243 (N) · 2^2 = 4 (C) · 3^2 = 9 (H) · 5^3 = 125 (V) · 4^4 = 256 (R)
- Clue 4 (Order of operations): "A SINGLE SILK STRAND MATCHED A BRAIDED MANE"8 × 12 - 19 = 77 (A) · 7 × 9 - 10 = 53 (H) · 6 × 4 - 5 = 19 (B) · 9 × 10 - 14 = 76 (C) · 7 × 6 - 13 = 29 (M) · 12 × 8 - 16 = 80 (G) · 12 × 8 - 18 = 78 (K) · 7 × 12 - 22 = 62 (R) · 5 + 2 × 5 = 15 (E) · 5 × 3 - 1 = 14 (I) · 3 × 12 - 10 = 26 (S) · 10 × 5 - 7 = 43 (N) · 9 × 7 - 3 = 60 (D) · 9 × 7 - 22 = 41 (L) · 5 × 9 - 7 = 38 (T)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Buttercup15 ÷ 3 = 5 · 72 ÷ 9 = 8 · 90 ÷ 9 = 10 · 14 ÷ 7 = 2 · 33 ÷ 11 = 3 · 9 ÷ 1 = 9 · 84 ÷ 7 = 12 · 110 ÷ 10 = 11 · 36 ÷ 9 = 4 · 11 ÷ 11 = 1 · 60 ÷ 10 = 6
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Place value, Percentages, Exponents, Order of operations, Division
- Reading level
- grades 5-6
- Theme
- Mystery of the Missing Crystal Horn — set in The Crystal Glade of Rainbow Valley
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects