The Case of the Missing Tiara
The Grand Headmistress's magical glass tiara has been stolen right out of the high tower! The sneaky thief left a trail of magical glitter behind. We must use our royal detective skills to find the culprit before the grand ball tonight!
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Magic Class | Royal Companion | Writing Hand | Hair Style | Secret Allergy |
|---|---|---|---|---|---|
| Merida | beast speech | chameleon pet | uses left hand | golden braids | smell of perfume |
| Giselle | ocean control | chameleon pet | uses right hand | ebony waves | sound of bells |
| Anna | ocean control | loyal reindeer | uses left hand | auburn curls | bright sunlight |
| Jasmine | beast speech | clockwork friend | uses right hand | golden braids | sound of bells |
| Cinderella | forest charm | poisoned apple | uses right hand | ebony waves | sound of bells |
| Pocahontas | forest charm | chameleon pet | uses left hand | golden braids | bright sunlight |
| Rapunzel | ocean control | magic carpet | uses left hand | ebony waves | sound of bells |
| Mulan | frost magic | chameleon pet | uses right hand | golden braids | smell of perfume |
| Elena | beast speech | chameleon pet | uses right hand | ebony waves | smell of perfume |
| Wendy | frost magic | loyal reindeer | uses right hand | auburn curls | sound of bells |
| Charlotte | ocean control | loyal reindeer | uses right hand | ebony waves | sound of bells |
| Megara | forest charm | chameleon pet | uses left hand | auburn curls | smell of perfume |
| Alice | lantern light | poisoned apple | uses right hand | golden braids | smell of perfume |
| Sofia | ocean control | magic carpet | uses left hand | ebony waves | bright sunlight |
| Moana | lantern light | chameleon pet | uses right hand | ebony waves | bright sunlight |
| Aurora | forest charm | loyal reindeer | uses right hand | golden braids | bright sunlight |
| Elsa | frost magic | magic carpet | uses right hand | ebony waves | smell of perfume |
| Ariel | frost magic | chameleon pet | uses right hand | auburn curls | sound of bells |
| Tiana | ocean control | clockwork friend | uses right hand | ebony waves | sound of bells |
| Esmeralda | beast speech | poisoned apple | uses left hand | ebony waves | smell of perfume |
| Jane | forest charm | magic carpet | uses right hand | ebony waves | sound of bells |
Rounding
The castle guard spotted a strange cloud on the magical radar screen. The radar only displays rounded numbers, so we must round the distance to find where the suspect flew.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Addition
A friendly palace mouse found a stash of stolen ribbon rolls in the pantry. We need to add the different colors together to see how many ribbons were taken.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Subtraction
The royal baker noticed some jam tarts were missing from the kitchen. We must subtract the remaining tarts from the starting batch to find the clues left on the tray.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Multiplication facts (1-12)
We found rows of sparkling footprints leading out to the rose garden. By multiplying the rows of prints, we can calculate how far the suspect jumped.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Division facts (1-12) — the last clue
The head guard needs to divide the royal potion bottles equally among the search teams. Dividing the bottles will help us unlock the final magic chest.
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!
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Tiara
- Clue 1 (Rounding): "THE VILLAIN DOES NOT HAVE A POISONED APPLE"Round 7,930 to the nearest thousand = 8000 (T) · Round 41 to the nearest ten = 40 (H) · Round 7,210 to the nearest thousand = 7000 (E) · Round 555 to the nearest hundred = 600 (A) · Round 2,239 to the nearest thousand = 2000 (V) · Round 160 to the nearest hundred = 200 (D) · Round 492 to the nearest hundred = 500 (S) · Round 84 to the nearest ten = 80 (I) · Round 4,481 to the nearest thousand = 4000 (L) · Round 841 to the nearest hundred = 800 (N) · Round 856 to the nearest hundred = 900 (O) · Round 54 to the nearest ten = 50 (P)
- Clue 2 (Addition): "THE THIEF USED THEIR RIGHT HAND FOR MAGIC"97 + 125 = 222 (T) · 259 + 169 = 428 (M) · 222 + 459 = 681 (F) · 294 + 171 = 465 (R) · 376 + 251 = 627 (A) · 218 + 467 = 685 (S) · 483 + 441 = 924 (C) · 628 + 340 = 968 (I) · 330 + 219 = 549 (G) · 272 + 163 = 435 (H) · 343 + 148 = 491 (N) · 242 + 518 = 760 (D) · 106 + 240 = 346 (E) · 165 + 129 = 294 (O) · 527 + 246 = 773 (U)
- Clue 3 (Subtraction): "THE SNEAK RAN AWAY AT THE SOUND OF BELLS"937 - 126 = 811 (T) · 525 - 353 = 172 (Y) · 513 - 290 = 223 (F) · 1049 - 160 = 889 (D) · 453 - 24 = 429 (E) · 842 - 211 = 631 (O) · 817 - 345 = 472 (N) · 1293 - 396 = 897 (R) · 418 - 100 = 318 (U) · 1092 - 282 = 810 (L) · 1066 - 194 = 872 (K) · 638 - 358 = 280 (S) · 682 - 156 = 526 (H) · 512 - 172 = 340 (W) · 348 - 107 = 241 (B) · 543 - 269 = 274 (A)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND STRANDS OF EBONY WAVES"8 × 12 = 96 (W) · 3 × 1 = 3 (A) · 4 × 10 = 40 (R) · 4 × 12 = 48 (T) · 4 × 1 = 4 (E) · 7 × 10 = 70 (B) · 4 × 7 = 28 (U) · 10 × 11 = 110 (Y) · 11 × 4 = 44 (F) · 6 × 11 = 66 (N) · 7 × 7 = 49 (D) · 1 × 9 = 9 (V) · 5 × 9 = 45 (S) · 6 × 9 = 54 (O)
- Clue 5 (Division facts (1-12)): surviving statement (box 3) → Jane2 ÷ 1 = 2 · 7 ÷ 1 = 7 · 6 ÷ 6 = 1 · 20 ÷ 2 = 10 · 108 ÷ 12 = 9 · 24 ÷ 2 = 12 · 77 ÷ 7 = 11 · 25 ÷ 5 = 5 · 16 ÷ 4 = 4 · 54 ÷ 9 = 6 · 16 ÷ 2 = 8
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Tiara — set in The Royal Academy of Coronets
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects