🦄 UnicornsGrade 3Reading: grades 3-4RoundingWord problemsAdditionSubtractionDivision
Mystery of the Stolen Star Crystal
Someone snuck into Glitterwood Meadow and swiped the sacred Star Crystal! Use your detective skills and solve the clues to find out who did it.
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 | Magical Power | Enchanted Item | Mane Style | Horn Color | Soft Spot |
|---|---|---|---|---|---|
| Meadow | Starlight Blasts | Magic Ribbon | Braided Mane | Pink Horn | Sweet Apples |
| Nova | Starlight Blasts | Diamond Saddle | Flowing Mane | Pink Horn | Soft Music |
| Comet | Moon Teleport | Silver Bell | Braided Mane | Pink Horn | Soft Music |
| Starburst | Starlight Blasts | Glitter Shield | Flowing Mane | Pink Horn | Sweet Apples |
| Buttercup | Rainbow Beams | Glitter Shield | Flowing Mane | Silver Horn | Soft Music |
| Jewel | Starlight Blasts | Crystal Crown | Braided Mane | Gold Horn | Soft Music |
| Glimmer | Moon Teleport | Silver Bell | Braided Mane | Gold Horn | Sweet Apples |
| Sparkles | Flower Growth | Magic Ribbon | Flowing Mane | Gold Horn | Sweet Apples |
| Barnaby | Starlight Blasts | Silver Bell | Braided Mane | Silver Horn | Sweet Apples |
| Whispers | Starlight Blasts | Silver Bell | Flowing Mane | Silver Horn | Soft Music |
| Moonbeam | Flower Growth | Crystal Crown | Braided Mane | Silver Horn | Soft Music |
| Twilight | Cloud Hopping | Crystal Crown | Flowing Mane | Silver Horn | Soft Music |
| Skydancer | Moon Teleport | Diamond Saddle | Flowing Mane | Pink Horn | Sweet Apples |
| Opal | Starlight Blasts | Crystal Crown | Flowing Mane | Pink Horn | Shiny Mirrors |
| Nimbus | Rainbow Beams | Magic Ribbon | Flowing Mane | Silver Horn | Sweet Apples |
| Penny | Flower Growth | Crystal Crown | Flowing Mane | Silver Horn | Soft Music |
| Sunbeam | Moon Teleport | Diamond Saddle | Braided Mane | Silver Horn | Shiny Mirrors |
| Echo | Flower Growth | Glitter Shield | Braided Mane | Silver Horn | Shiny Mirrors |
| Clover | Flower Growth | Crystal Crown | Flowing Mane | Silver Horn | Sweet Apples |
| Radiance | Flower Growth | Silver Bell | Braided Mane | Gold Horn | Soft Music |
| Blossom | Cloud Hopping | Silver Bell | Flowing Mane | Silver Horn | Soft Music |
Clue 1
Rounding
Detective Clover checks the logs of the magical stable. Help solve these word problems to decode the first clue!
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
300
4000
20
600
90
90
50
600
30
7000
2000
4000
40
30
2000
T
70
300
50
20
4000
50
700
90
600
T
70
T
70
4000
400
40
300
600
4000
90
7000
Round 71 to the nearest tenT
Round 46 to the nearest tenA
Round 44 to the nearest tenS
Round 6,709 to the nearest thousandD
Round 566 to the nearest hundredI
Round 18 to the nearest tenV
Round 87 to the nearest tenL
Round 2,000 to the nearest thousandO
Round 34 to the nearest tenN
Round 377 to the nearest hundredR
Round 728 to the nearest hundredG
Round 319 to the nearest hundredH
Round 4,446 to the nearest thousandE
0/13 letters found
Clue 2
Word problems
The glitter radar only displays estimated glow levels. Round the numbers to unlock the next secret.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
F
74
26
55
48
8
75
66
M
A
75
E
Detective Clover found 2 magic apples yesterday and 72 more today. How many magic apples in all?F
Detective Clover lined up 5 rows of 11 glowing horseshoe nails. How many glowing horseshoe nails in all?O
Detective Clover lined up 6 rows of 8 sugar cubes. How many sugar cubes in all?W
Detective Clover found 13 star gems yesterday and 13 more today. How many star gems in all?L
Detective Clover found 45 glowing horseshoe nails yesterday and 30 more today. How many glowing horseshoe nails in all?N
There were 29 star gems. 21 were used up. How many star gems are left?I
Detective Clover lined up 6 rows of 11 star gems. How many star gems in all?G
0/7 letters found
Clue 3
Addition
We gathered glowing star gems from around the meadow. Add them together to read the witness report.
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
763
987
842
337
662
703
703
975
662
270
430
975
334
334
T
763
954
969
969
842
602
876
704
334
954
614
T
763
575
320
334
662
374
271 + 492 =T
347 + 357 =Y
318 + 296 =F
326 + 377 =L
358 + 617 =A
334 + 620 =O
359 + 216 =M
639 + 330 =P
248 + 126 =C
679 + 308 =H
272 + 330 =D
182 + 248 =W
201 + 119 =U
140 + 130 =N
144 + 193 =V
353 + 489 =E
285 + 591 =B
335 + 327 =I
182 + 152 =S
0/19 letters found
Clue 4
Subtraction
The villain dropped shiny horseshoe nails as they ran away. Subtract the missing nails to reveal the next piece of evidence.
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
793
332
707
752
265
816
379
449
172
S
793
815
127
707
S
793
229
350
172
257
449
350
257
707
S
793
672
816
294
379
752
835
350
752
257
833 - 40 =S
797 - 125 =I
635 - 341 =V
868 - 116 =R
861 - 26 =H
330 - 203 =W
285 - 113 =U
258 - 29 =F
493 - 228 =K
653 - 204 =D
760 - 53 =A
625 - 368 =N
644 - 312 =P
394 - 44 =O
762 - 383 =E
1119 - 304 =T
1094 - 278 =L
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
Warden Barnaby shares magical sugar cubes equally among five unicorn squads. Divide the treats to get the final 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
30 ÷ 5 = ?
18 ÷ 9 = ?
18 ÷ 2 = ?
48 ÷ 4 = ?
24 ÷ 8 = ?
63 ÷ 9 = ?
10 ÷ 1 = ?
77 ÷ 7 = ?
24 ÷ 6 = ?
15 ÷ 3 = ?
12 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain teleports through moonbeams, then rings a silver bell.
2.The villain hops across clouds, then rings a silver bell.
3.The villain fires starlight blasts, then ties a magic ribbon.
4.The villain fires starlight blasts, then wears a crystal crown.
5.The villain hops across clouds, then straps on a diamond saddle.
6.The villain hops across clouds, then wears a crystal crown.
7.The villain shoots rainbow beams, then wears a crystal crown.
8.The villain grows giant flowers, then wears a crystal crown.
9.The villain fires starlight blasts, then rings a silver bell.
10.The villain shoots rainbow beams, then ties a magic ribbon.
11.The villain hops across clouds, then carries a glitter shield.
12.The villain teleports through moonbeams, then carries a glitter shield.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — Mystery of the Stolen Star Crystal
Culprit: Penny (Flower Growth · Crystal Crown · Flowing Mane · Silver Horn · Soft Music)
- Clue 1 (Rounding): "THE VILLAIN DOES NOT HAVE A GLITTER SHIELD"Round 71 to the nearest ten = 70 (T) · Round 46 to the nearest ten = 50 (A) · Round 44 to the nearest ten = 40 (S) · Round 6,709 to the nearest thousand = 7000 (D) · Round 566 to the nearest hundred = 600 (I) · Round 18 to the nearest ten = 20 (V) · Round 87 to the nearest ten = 90 (L) · Round 2,000 to the nearest thousand = 2000 (O) · Round 34 to the nearest ten = 30 (N) · Round 377 to the nearest hundred = 400 (R) · Round 728 to the nearest hundred = 700 (G) · Round 319 to the nearest hundred = 300 (H) · Round 4,446 to the nearest thousand = 4000 (E)
- Clue 2 (Word problems): "FLOWING MANE"Detective Clover found 2 magic apples yesterday and 72 more today. How many magic apples in all? = 74 (F) · Detective Clover lined up 5 rows of 11 glowing horseshoe nails. How many glowing horseshoe nails in all? = 55 (O) · Detective Clover lined up 6 rows of 8 sugar cubes. How many sugar cubes in all? = 48 (W) · Detective Clover found 13 star gems yesterday and 13 more today. How many star gems in all? = 26 (L) · Detective Clover found 45 glowing horseshoe nails yesterday and 30 more today. How many glowing horseshoe nails in all? = 75 (N) · There were 29 star gems. 21 were used up. How many star gems are left? = 8 (I) · Detective Clover lined up 6 rows of 11 star gems. How many star gems in all? = 66 (G)
- Clue 3 (Addition): "THE VILLAIN WAS STOPPED BY SOFT MUSIC"271 + 492 = 763 (T) · 347 + 357 = 704 (Y) · 318 + 296 = 614 (F) · 326 + 377 = 703 (L) · 358 + 617 = 975 (A) · 334 + 620 = 954 (O) · 359 + 216 = 575 (M) · 639 + 330 = 969 (P) · 248 + 126 = 374 (C) · 679 + 308 = 987 (H) · 272 + 330 = 602 (D) · 182 + 248 = 430 (W) · 201 + 119 = 320 (U) · 140 + 130 = 270 (N) · 144 + 193 = 337 (V) · 353 + 489 = 842 (E) · 285 + 591 = 876 (B) · 335 + 327 = 662 (I) · 182 + 152 = 334 (S)
- Clue 4 (Subtraction): "SPARKLE DUST WAS FOUND ON A SILVER HORN"833 - 40 = 793 (S) · 797 - 125 = 672 (I) · 635 - 341 = 294 (V) · 868 - 116 = 752 (R) · 861 - 26 = 835 (H) · 330 - 203 = 127 (W) · 285 - 113 = 172 (U) · 258 - 29 = 229 (F) · 493 - 228 = 265 (K) · 653 - 204 = 449 (D) · 760 - 53 = 707 (A) · 625 - 368 = 257 (N) · 644 - 312 = 332 (P) · 394 - 44 = 350 (O) · 762 - 383 = 379 (E) · 1119 - 304 = 815 (T) · 1094 - 278 = 816 (L)
- Clue 5 (Division facts (1-12)): surviving statement (box 8) → Penny30 ÷ 5 = 6 · 18 ÷ 9 = 2 · 18 ÷ 2 = 9 · 48 ÷ 4 = 12 · 24 ÷ 8 = 3 · 63 ÷ 9 = 7 · 10 ÷ 1 = 10 · 77 ÷ 7 = 11 · 24 ÷ 6 = 4 · 15 ÷ 3 = 5 · 12 ÷ 12 = 1
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Word problems, Addition, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- Mystery of the Stolen Star Crystal — set in Glitterwood Meadow
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects