🦄 UnicornsGrade 5Reading: grades 5-6Place valueAdditionSubtractionMultiplicationDivision
The Mystery of the Missing Crystal Horn
The rare Starlight Horn has disappeared from the central pedestal in Glittercloud Sanctuary. Use your deductive skills and math clues to track down the thief before the sanctuary loses its magic glow.
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 Aura | Special Skill | Hoofprint Stance | Mane Color | Disliked Snack |
|---|---|---|---|---|---|
| Koa Breeze | Star Glow | Teleportation | Right Hoofed | Silver Blue Mane | Bitter Berries |
| Milo Mist | Sun Flare | Mind Whisper | Right Hoofed | Pastel Pink Mane | Bitter Berries |
| Trixie Twinkle | Rainbow Beam | Mind Whisper | Right Hoofed | Silver Blue Mane | Bitter Berries |
| Willow Whicker | Moon Shimmer | Time Warp | Right Hoofed | Pastel Pink Mane | Stale Oatcakes |
| Phoebe Pegasus | Rainbow Beam | Shield Wave | Right Hoofed | Silver Blue Mane | Sour Apples |
| Glimmer Grace | Crystal Spark | Flying Wings | Left Hoofed | Golden Yellow Mane | Stale Oatcakes |
| Lyra Light | Moon Shimmer | Time Warp | Right Hoofed | Silver Blue Mane | Stale Oatcakes |
| Celestia Star | Crystal Spark | Flying Wings | Right Hoofed | Pastel Pink Mane | Bitter Berries |
| Jasper Meadow | Star Glow | Shield Wave | Left Hoofed | Pastel Pink Mane | Stale Oatcakes |
| Flora Blossom | Moon Shimmer | Mind Whisper | Left Hoofed | Golden Yellow Mane | Bitter Berries |
| Dante Dust | Sun Flare | Teleportation | Right Hoofed | Pastel Pink Mane | Bitter Berries |
| Indigo Iris | Moon Shimmer | Mind Whisper | Left Hoofed | Pastel Pink Mane | Stale Oatcakes |
| Astrid Aurora | Crystal Spark | Shield Wave | Right Hoofed | Golden Yellow Mane | Bitter Berries |
| Sienna Sunset | Crystal Spark | Mind Whisper | Right Hoofed | Pastel Pink Mane | Sour Apples |
| Barnaby Prism | Sun Flare | Mind Whisper | Left Hoofed | Pastel Pink Mane | Bitter Berries |
| Nova Spark | Crystal Spark | Time Warp | Right Hoofed | Pastel Pink Mane | Bitter Berries |
| Luna Opal | Rainbow Beam | Flying Wings | Right Hoofed | Pastel Pink Mane | Bitter Berries |
| Gideon Gale | Sun Flare | Teleportation | Right Hoofed | Golden Yellow Mane | Sour Apples |
| Callum Comet | Moon Shimmer | Shield Wave | Left Hoofed | Pastel Pink Mane | Sour Apples |
| Zephyr Hoof | Sun Flare | Time Warp | Right Hoofed | Golden Yellow Mane | Sour Apples |
| Orion Cloud | Star Glow | Flying Wings | Right Hoofed | Pastel Pink Mane | Stale Oatcakes |
Clue 1
Place value
The sanctuary archivist examines the vault security lock where the place value of each digit reveals a secret code.
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
70
9000
60
3000
5000
40
40
400
5000
80
4000
600
60
800
80
600
T
70
30
800
60
T
70
5000
2000
60
6000
400
20
100
What is the value of the 7 in 591,174?T
What is the value of the 6 in 71,650?O
What is the value of the 2 in 591,720?R
What is the value of the 4 in 909,431?A
What is the value of the 1 in 70,100?P
What is the value of the 5 in 45,924?I
What is the value of the 8 in 74,847?S
What is the value of the 3 in 753,262?V
What is the value of the 6 in 246,513?W
What is the value of the 4 in 756,248?L
What is the value of the 2 in 852,611?M
What is the value of the 9 in 579,361?H
What is the value of the 3 in 618,832?U
What is the value of the 4 in 64,891?D
What is the value of the 6 in 35,869?E
What is the value of the 8 in 633,784?N
0/16 letters found
Clue 2
Addition
To gather the next piece of evidence, the team sums up all the magic energy readings recorded around the crime scene.
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
6720
7155
8273
7155
3284
3284
8229
3562
4533
4152
3186
T
6720
7908
7155
3284
4292
7908
7038
4533
4152
3995
7155
T
6720
7155
3284
3284
8229
8273
7639
7908
T
6720
8273
3562
3597 + 3123 =T
1630 + 2365 =G
962 + 2224 =N
1843 + 1441 =O
2567 + 1585 =I
3049 + 5224 =E
3135 + 1398 =R
2179 + 4976 =H
4845 + 2794 =D
1476 + 2086 =P
2617 + 1675 =W
4868 + 3040 =S
4949 + 3280 =F
2506 + 4532 =A
0/14 letters found
Clue 3
Subtraction
Comparing the original supply of star fruit to what remains reveals exactly how much was taken during the escape.
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
5995
7698
5967
7710
4282
5967
6506
1814
T
5995
5118
3467
4282
5967
6823
6506
2934
6506
3401
3546
3467
6596
4935
6141
1416
T
5995
T
5995
5967
3467
6141
5967
3467
3467
1416
5967
7710
10442 - 4447 =T
7292 - 2174 =U
3904 - 358 =F
4519 - 3103 =I
5397 - 3583 =K
6477 - 3543 =W
6833 - 2551 =N
11520 - 3822 =H
10041 - 3900 =B
6986 - 163 =D
7934 - 1338 =O
8543 - 2576 =E
8446 - 1940 =A
5237 - 302 =M
9178 - 1468 =S
5366 - 1965 =Y
6097 - 2630 =R
0/17 letters found
Clue 4
Multiplication facts (1-12)
The guard calculates the total magic ribbons available by multiplying the number of display shelves in the hall.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
16
2
100
7
50
54
S
16
96
121
11
7
S
16
2
20
18
11
36
50
1
40
7
50
20
99
20
100
20
121
96
42
50
54
8 × 2 =S
2 × 1 =T
1 × 7 =A
6 × 7 =U
1 × 11 =P
8 × 12 =O
6 × 3 =L
5 × 8 =M
9 × 6 =D
11 × 11 =F
12 × 3 =I
4 × 5 =E
11 × 9 =W
5 × 10 =N
1 × 1 =K
10 × 10 =R
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
To decode the final clue, the remaining crystal charms must be shared equally among the sanctuary stables.
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
21 ÷ 7 = ?
144 ÷ 12 = ?
27 ÷ 3 = ?
44 ÷ 11 = ?
10 ÷ 1 = ?
2 ÷ 2 = ?
11 ÷ 1 = ?
14 ÷ 7 = ?
56 ÷ 7 = ?
5 ÷ 1 = ?
35 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain flashed a bright star glow, then blocked the door with a shield wave.
2.The villain fired a rainbow beam, then blocked the door with a shield wave.
3.The villain fired a rainbow beam, then flown away with wings.
4.The villain blazed a hot sun flare, then blocked the door with a shield wave.
5.The villain cast a soft moon shimmer, then blocked the door with a shield wave.
6.The villain blazed a hot sun flare, then sent a sneaky mind whisper.
7.The villain zapped a crystal spark, then vanished using teleportation.
8.The villain blazed a hot sun flare, then escaped with a time warp.
9.The villain blazed a hot sun flare, then vanished using teleportation.
10.The villain cast a soft moon shimmer, then sent a sneaky mind whisper.
11.The villain zapped a crystal spark, then escaped with a time warp.
12.The villain zapped a crystal spark, then flown away with wings.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Missing Crystal Horn
Culprit: Milo Mist (Sun Flare · Mind Whisper · Right Hoofed · Pastel Pink Mane · Bitter Berries)
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE TIME WARP"What is the value of the 7 in 591,174? = 70 (T) · What is the value of the 6 in 71,650? = 600 (O) · What is the value of the 2 in 591,720? = 20 (R) · What is the value of the 4 in 909,431? = 400 (A) · What is the value of the 1 in 70,100? = 100 (P) · What is the value of the 5 in 45,924? = 5000 (I) · What is the value of the 8 in 74,847? = 800 (S) · What is the value of the 3 in 753,262? = 3000 (V) · What is the value of the 6 in 246,513? = 6000 (W) · What is the value of the 4 in 756,248? = 40 (L) · What is the value of the 2 in 852,611? = 2000 (M) · What is the value of the 9 in 579,361? = 9000 (H) · What is the value of the 3 in 618,832? = 30 (U) · What is the value of the 4 in 64,891? = 4000 (D) · What is the value of the 6 in 35,869? = 60 (E) · What is the value of the 8 in 633,784? = 80 (N)
- Clue 2 (Addition): "THE HOOFPRINT SHOWS A RIGHT HOOFED STEP"3597 + 3123 = 6720 (T) · 1630 + 2365 = 3995 (G) · 962 + 2224 = 3186 (N) · 1843 + 1441 = 3284 (O) · 2567 + 1585 = 4152 (I) · 3049 + 5224 = 8273 (E) · 3135 + 1398 = 4533 (R) · 2179 + 4976 = 7155 (H) · 4845 + 2794 = 7639 (D) · 1476 + 2086 = 3562 (P) · 2617 + 1675 = 4292 (W) · 4868 + 3040 = 7908 (S) · 4949 + 3280 = 8229 (F) · 2506 + 4532 = 7038 (A)
- Clue 3 (Subtraction): "THE SNEAK TURNED AWAY FROM BITTER BERRIES"10442 - 4447 = 5995 (T) · 7292 - 2174 = 5118 (U) · 3904 - 358 = 3546 (F) · 4519 - 3103 = 1416 (I) · 5397 - 3583 = 1814 (K) · 6477 - 3543 = 2934 (W) · 6833 - 2551 = 4282 (N) · 11520 - 3822 = 7698 (H) · 10041 - 3900 = 6141 (B) · 6986 - 163 = 6823 (D) · 7934 - 1338 = 6596 (O) · 8543 - 2576 = 5967 (E) · 8446 - 1940 = 6506 (A) · 5237 - 302 = 4935 (M) · 9178 - 1468 = 7710 (S) · 5366 - 1965 = 3401 (Y) · 6097 - 2630 = 3467 (R)
- Clue 4 (Multiplication facts (1-12)): "STRANDS OF PASTEL PINK MANE WERE FOUND"8 × 2 = 16 (S) · 2 × 1 = 2 (T) · 1 × 7 = 7 (A) · 6 × 7 = 42 (U) · 1 × 11 = 11 (P) · 8 × 12 = 96 (O) · 6 × 3 = 18 (L) · 5 × 8 = 40 (M) · 9 × 6 = 54 (D) · 11 × 11 = 121 (F) · 12 × 3 = 36 (I) · 4 × 5 = 20 (E) · 11 × 9 = 99 (W) · 5 × 10 = 50 (N) · 1 × 1 = 1 (K) · 10 × 10 = 100 (R)
- Clue 5 (Division facts (1-12)): surviving statement (box 6) → Milo Mist21 ÷ 7 = 3 · 144 ÷ 12 = 12 · 27 ÷ 3 = 9 · 44 ÷ 11 = 4 · 10 ÷ 1 = 10 · 2 ÷ 2 = 1 · 11 ÷ 1 = 11 · 14 ÷ 7 = 2 · 56 ÷ 7 = 8 · 5 ÷ 1 = 5 · 35 ÷ 5 = 7
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Place value, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 5-6
- Theme
- The Mystery of the Missing Crystal Horn — set in Glittercloud Sanctuary
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects