🔎 PrincessesGrade 3Reading: grades 3-4MultiplicationRoundingAdditionSubtractionDivision
The Case of the Swapped Star Tiara
Someone snuck into the Royal Tiara Academy and swapped the priceless Golden Star Tiara with a cheap plastic toy! The Royal Crown Keeper needs your help to follow the math clues, find the Imposter Princess, and save the royal graduation ceremony.
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 | Signature Charm | Magic Prop | Writing Hand | Tiara Hair Style | Royal Allergy |
|---|---|---|---|---|---|
| Belle | Rainbow Dance | Emerald Ring | Left-handed writer | Long Braids | Silver Rose petals |
| Elsa | Jewel Glow | Pearl Necklace | Left-handed writer | Curly Ponytail | Midnight Tulip scent |
| Megara | Sparkle Whisper | Pearl Necklace | Left-handed writer | Long Braids | Silver Rose petals |
| Elena | Rainbow Dance | Pearl Necklace | Left-handed writer | Long Braids | Silver Rose petals |
| Pocahontas | Jewel Glow | Pearl Necklace | Right-handed writer | High Bun | Golden Apple pollen |
| Jasmine | Jewel Glow | Ribbon Scepter | Left-handed writer | Long Braids | Silver Rose petals |
| Tiana | Sparkle Whisper | Pearl Necklace | Left-handed writer | Curly Ponytail | Golden Apple pollen |
| Giselle | Jewel Glow | Star Wand | Right-handed writer | High Bun | Midnight Tulip scent |
| Anastasia | Sparkle Whisper | Star Wand | Left-handed writer | Curly Ponytail | Silver Rose petals |
| Moana | Glimmer Song | Emerald Ring | Right-handed writer | Curly Ponytail | Midnight Tulip scent |
| Charlotte | Sparkle Whisper | Crystal Slipper | Left-handed writer | Long Braids | Golden Apple pollen |
| Rapunzel | Jewel Glow | Crystal Slipper | Left-handed writer | Curly Ponytail | Midnight Tulip scent |
| Mulan | Jewel Glow | Star Wand | Right-handed writer | Long Braids | Silver Rose petals |
| Merida | Rainbow Dance | Ribbon Scepter | Right-handed writer | Long Braids | Golden Apple pollen |
| Odette | Sparkle Whisper | Ribbon Scepter | Right-handed writer | High Bun | Midnight Tulip scent |
| Snow White | Sparkle Whisper | Emerald Ring | Left-handed writer | Long Braids | Silver Rose petals |
| Ariel | Butterfly Breeze | Pearl Necklace | Right-handed writer | High Bun | Midnight Tulip scent |
| Sofia | Rainbow Dance | Star Wand | Left-handed writer | Curly Ponytail | Golden Apple pollen |
| Kida | Jewel Glow | Pearl Necklace | Right-handed writer | High Bun | Silver Rose petals |
| Cinderella | Rainbow Dance | Crystal Slipper | Left-handed writer | High Bun | Golden Apple pollen |
| Anna | Jewel Glow | Ribbon Scepter | Left-handed writer | Curly Ponytail | Midnight Tulip scent |
Clue 1
Multiplication facts (1-12)
We found rows of sparkling gems dropped on the dance floor. If we count them in equal groups, we can find 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
120
9
100
20
66
108
108
55
66
60
2
81
100
14
60
81
T
120
35
14
100
55
10
66
16
16
81
60
14
11
100
70
T
120
100
10
10 × 12 =T
12 × 9 =L
6 × 10 =N
4 × 5 =V
10 × 10 =E
1 × 2 =D
3 × 3 =H
11 × 1 =C
7 × 10 =P
9 × 9 =O
2 × 7 =S
6 × 11 =I
5 × 2 =R
5 × 7 =U
5 × 11 =A
8 × 2 =B
0/16 letters found
Clue 2
Rounding
The royal scale showed the weight of the fake tiara. Let's round the scale's number to the nearest ten to reveal the next 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
700
30
90
900
9000
900
200
90
5000
T
700
50
4000
60
T
700
90
900
50
60
T
700
30
T
700
30
90
60
4000
400
90
8000
T
700
30
3000
2000
300
Round 704 to the nearest hundredT
Round 34 to the nearest tenH
Round 305 to the nearest hundredD
Round 4,107 to the nearest thousandR
Round 2,872 to the nearest thousandA
Round 8,514 to the nearest thousandU
Round 8,471 to the nearest thousandF
Round 1,813 to the nearest thousandN
Round 56 to the nearest tenI
Round 92 to the nearest tenE
Round 215 to the nearest hundredP
Round 380 to the nearest hundredL
Round 4,746 to the nearest thousandC
Round 46 to the nearest tenW
Round 895 to the nearest hundredS
0/15 letters found
Clue 3
Addition
The palace guards are tallying up the missing glitter bottles. Let's add them all together to unlock another 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
649
634
942
743
206
363
868
544
644
T
649
271
758
942
942
820
942
271
758
942
767
544
271
644
363
226
942
544
544
574
271
942
271
447 + 202 =T
461 + 282 =C
363 + 395 =N
170 + 193 =L
151 + 75 =V
298 + 276 =O
441 + 427 =P
331 + 611 =E
61 + 145 =U
353 + 414 =A
339 + 295 =H
262 + 382 =I
189 + 355 =R
144 + 127 =S
406 + 414 =Z
0/15 letters found
Clue 4
Subtraction
The imposter took some shiny ribbons from the craft room. If we subtract the leftover ribbons, we will find a new 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.
W
215
894
286
103
364
851
853
158
789
490
224
112
714
224
861
490
286
490
103
797
134
103
851
309
895
490
224
861
853
158
383 - 168 =W
593 - 369 =A
350 - 216 =L
943 - 146 =M
1145 - 356 =T
236 - 133 =O
532 - 168 =U
1186 - 292 =E
1244 - 383 =I
239 - 81 =S
958 - 105 =D
279 - 167 =Y
941 - 90 =N
509 - 19 =R
691 - 382 =G
670 - 384 =F
1167 - 272 =B
1083 - 369 =H
0/18 letters found
Clue 5
Division facts (1-12) — the last clue
The maids are splitting the magical tiara boxes into equal piles. Dividing them evenly will show us 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
120 ÷ 10 = ?
72 ÷ 9 = ?
18 ÷ 9 = ?
4 ÷ 4 = ?
22 ÷ 2 = ?
30 ÷ 10 = ?
42 ÷ 7 = ?
49 ÷ 7 = ?
40 ÷ 10 = ?
100 ÷ 10 = ?
15 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain performs a rainbow dance to distract everyone, then taps a crystal slipper to teleport away.
2.The villain uses a sparkle whisper to confuse the guards, then points an emerald ring to unlock the secret door.
3.The villain creates a bright jewel glow to block the cameras, then waves a star wand to make a quick escape.
4.The villain performs a rainbow dance to distract everyone, then swings a ribbon scepter to create a smoke screen.
5.The villain uses a sparkle whisper to confuse the guards, then swings a ribbon scepter to create a smoke screen.
6.The villain performs a rainbow dance to distract everyone, then waves a star wand to make a quick escape.
7.The villain sings a beautiful glimmer song to charm the staff, then flashes a pearl necklace to blind the onlookers.
8.The villain performs a rainbow dance to distract everyone, then flashes a pearl necklace to blind the onlookers.
9.The villain performs a rainbow dance to distract everyone, then points an emerald ring to unlock the secret door.
10.The villain summons a butterfly breeze to sweep across the room, then taps a crystal slipper to teleport away.
11.The villain creates a bright jewel glow to block the cameras, then taps a crystal slipper to teleport away.
12.The villain uses a sparkle whisper to confuse the guards, then flashes a pearl necklace to blind the onlookers.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Swapped Star Tiara
Culprit: Belle (Rainbow Dance · Emerald Ring · Left-handed writer · Long Braids · Silver Rose petals)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT USE A RIBBON SCEPTER"10 × 12 = 120 (T) · 12 × 9 = 108 (L) · 6 × 10 = 60 (N) · 4 × 5 = 20 (V) · 10 × 10 = 100 (E) · 1 × 2 = 2 (D) · 3 × 3 = 9 (H) · 11 × 1 = 11 (C) · 7 × 10 = 70 (P) · 9 × 9 = 81 (O) · 2 × 7 = 14 (S) · 6 × 11 = 66 (I) · 5 × 2 = 10 (R) · 5 × 7 = 35 (U) · 5 × 11 = 55 (A) · 8 × 2 = 16 (B)
- Clue 2 (Rounding): "THE SUSPECT WRITES WITH THEIR LEFT HAND"Round 704 to the nearest hundred = 700 (T) · Round 34 to the nearest ten = 30 (H) · Round 305 to the nearest hundred = 300 (D) · Round 4,107 to the nearest thousand = 4000 (R) · Round 2,872 to the nearest thousand = 3000 (A) · Round 8,514 to the nearest thousand = 9000 (U) · Round 8,471 to the nearest thousand = 8000 (F) · Round 1,813 to the nearest thousand = 2000 (N) · Round 56 to the nearest ten = 60 (I) · Round 92 to the nearest ten = 90 (E) · Round 215 to the nearest hundred = 200 (P) · Round 380 to the nearest hundred = 400 (L) · Round 4,746 to the nearest thousand = 5000 (C) · Round 46 to the nearest ten = 50 (W) · Round 895 to the nearest hundred = 900 (S)
- Clue 3 (Addition): "THE CULPRIT SNEEZES NEAR SILVER ROSES"447 + 202 = 649 (T) · 461 + 282 = 743 (C) · 363 + 395 = 758 (N) · 170 + 193 = 363 (L) · 151 + 75 = 226 (V) · 298 + 276 = 574 (O) · 441 + 427 = 868 (P) · 331 + 611 = 942 (E) · 61 + 145 = 206 (U) · 353 + 414 = 767 (A) · 339 + 295 = 634 (H) · 262 + 382 = 644 (I) · 189 + 355 = 544 (R) · 144 + 127 = 271 (S) · 406 + 414 = 820 (Z)
- Clue 4 (Subtraction): "WE FOUND STRAY HAIR FROM LONG BRAIDS"383 - 168 = 215 (W) · 593 - 369 = 224 (A) · 350 - 216 = 134 (L) · 943 - 146 = 797 (M) · 1145 - 356 = 789 (T) · 236 - 133 = 103 (O) · 532 - 168 = 364 (U) · 1186 - 292 = 894 (E) · 1244 - 383 = 861 (I) · 239 - 81 = 158 (S) · 958 - 105 = 853 (D) · 279 - 167 = 112 (Y) · 941 - 90 = 851 (N) · 509 - 19 = 490 (R) · 691 - 382 = 309 (G) · 670 - 384 = 286 (F) · 1167 - 272 = 895 (B) · 1083 - 369 = 714 (H)
- Clue 5 (Division facts (1-12)): surviving statement (box 9) → Belle120 ÷ 10 = 12 · 72 ÷ 9 = 8 · 18 ÷ 9 = 2 · 4 ÷ 4 = 1 · 22 ÷ 2 = 11 · 30 ÷ 10 = 3 · 42 ÷ 7 = 6 · 49 ÷ 7 = 7 · 40 ÷ 10 = 4 · 100 ÷ 10 = 10 · 15 ÷ 3 = 5
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Multiplication, Rounding, Addition, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Swapped Star Tiara — set in Royal Tiara Academy
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects