🔎 Fashion and girlsGrade 4Reading: grades 5-6AdditionSubtractionSkip countingRoundingDivision
The Case of the Missing Diamond Tiara
Welcome to Paris Fashion Week! The lights are bright, and the models are ready to walk the runway. But just moments before the grand finale, someone stole the priceless Diamond Tiara from the main display. Head Designer Madame Celeste is in tears. It is up to you, the youngest fashion detective in the world, to interview the suspects and find the Saboteur before the final curtain drops!
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 Style | Designer Accessory | Runway Habit | Hairstyle | Fashion Emergency |
|---|---|---|---|---|---|
| Twiggy | Pastel Princess | Pearl Tiara | Chews Bubblegum | Tousled Space Buns | Static Cling Shock |
| Selena | Gothic Chic | Velvet Beret | Chews Bubblegum | Blunt Bob Cut | Squeaky Runway Heel |
| Lupita | Gothic Chic | Velvet Beret | Chews Bubblegum | Blunt Bob Cut | Snagged Zipper |
| Karlie | Pastel Princess | Velvet Beret | Chews Bubblegum | Blunt Bob Cut | Squeaky Runway Heel |
| Gigi | Retro Vintage | Golden Clutch | Chews Bubblegum | Sleek High Ponytail | Static Cling Shock |
| Kendall | Pastel Princess | Velvet Beret | Chews Bubblegum | Blunt Bob Cut | Static Cling Shock |
| Donatella | Retro Vintage | Diamond Choker | Chews Bubblegum | Blunt Bob Cut | Squeaky Runway Heel |
| Cara | Pastel Princess | Golden Clutch | Chews Bubblegum | Sleek High Ponytail | Snagged Zipper |
| Stella | Retro Vintage | Diamond Choker | Wears Sunglasses | Blunt Bob Cut | Snagged Zipper |
| Ariana | Neon Glam | Pearl Tiara | Chews Bubblegum | Blunt Bob Cut | Static Cling Shock |
| Taylor | Streetwear Edge | Golden Clutch | Wears Sunglasses | Sleek High Ponytail | Squeaky Runway Heel |
| Bella | Neon Glam | Diamond Choker | Chews Bubblegum | Tousled Space Buns | Squeaky Runway Heel |
| Rihanna | Streetwear Edge | Golden Clutch | Chews Bubblegum | Tousled Space Buns | Snagged Zipper |
| Ashley | Pastel Princess | Silk Scarf | Wears Sunglasses | Blunt Bob Cut | Squeaky Runway Heel |
| Zendaya | Retro Vintage | Velvet Beret | Chews Bubblegum | Sleek High Ponytail | Static Cling Shock |
| Coco | Gothic Chic | Golden Clutch | Chews Bubblegum | Blunt Bob Cut | Squeaky Runway Heel |
| Vera | Streetwear Edge | Silk Scarf | Chews Bubblegum | Blunt Bob Cut | Squeaky Runway Heel |
| Tyra | Neon Glam | Pearl Tiara | Wears Sunglasses | Blunt Bob Cut | Snagged Zipper |
| Heidi | Pastel Princess | Diamond Choker | Wears Sunglasses | Blunt Bob Cut | Snagged Zipper |
| Olivia | Pastel Princess | Pearl Tiara | Wears Sunglasses | Blunt Bob Cut | Squeaky Runway Heel |
| Naomi | Neon Glam | Golden Clutch | Wears Sunglasses | Blunt Bob Cut | Static Cling Shock |
Clue 1
Addition
To find the first clue, we must count the total number of designer sketchbooks by adding the stacks on the main cutting table.
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
3949
2374
8510
T
3949
2374
9359
8510
4570
6739
7070
8510
9061
9492
7070
T
3949
4292
8510
4335
6093
4335
9061
9359
2301
7237
9061
3728
4335
6093
4570
1895 + 2054 =T
2023 + 2547 =F
6110 + 3249 =I
3839 + 2900 =D
1765 + 2527 =W
4452 + 4609 =S
2571 + 1764 =A
3674 + 3396 =O
2738 + 3355 =R
5039 + 4453 =N
2253 + 1475 =C
4765 + 3745 =E
2944 + 4293 =K
1073 + 1301 =H
1492 + 809 =L
0/15 letters found
Clue 2
Subtraction
We can trace the suspect's path by looking at the missing mannequin stands, subtracting the remaining props from yesterday's total.
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
2914
5200
6364
2341
8877
2341
8451
6364
2392
T
2914
7688
8907
4891
3811
2341
5200
8877
8695
6364
8451
8435
3340
8155
7688
8877
7688
7688
8907
6364
8695
8877
5773
7688
8877
7688
7688
8907
6364
2341
4392 - 1478 =T
12793 - 4358 =I
12868 - 4713 =K
9192 - 497 =G
2614 - 273 =S
6049 - 276 =M
9092 - 185 =L
9131 - 3931 =H
7318 - 3507 =W
6624 - 260 =E
11742 - 4054 =B
8604 - 153 =P
12603 - 3726 =U
4895 - 1555 =N
7189 - 2298 =O
4691 - 2299 =C
0/16 letters found
Clue 3
Skip counting
The thief escaped down a staircase decorated with fancy crystal beads, which we can count quickly by skipping along the pattern.
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
45
39
42
130
27
33
18
130
100
A
45
12
60
33
14
42
100
25
130
22
50
100
27
70
14
100
22
25
100
33
36
A
45
90
100
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70N
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22Q
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45L
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110P
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42C
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33D
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16K
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70Y
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80T
0/17 letters found
Clue 4
Rounding
A digital sewing machine screen is glitching, only displaying the fabrics used when we round the yards to the nearest ten.
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
7000
300
500
50
170
S
7000
900
50
1100
170
2300
S
7000
500
200
1100
1700
230
5000
170
900
1700
500
1700
130
5000
900
30
1300
50
1300
200
500
5000
170
2300
Round 7,361 to the nearest thousandS
Round 4,643 to the nearest thousandU
Round 2,341 to the nearest hundredD
Round 267 to the nearest hundredH
Round 886 to the nearest hundredT
Round 1,074 to the nearest hundredA
Round 228 to the nearest tenL
Round 1,719 to the nearest hundredB
Round 203 to the nearest hundredF
Round 54 to the nearest tenR
Round 1,316 to the nearest hundredE
Round 544 to the nearest hundredO
Round 126 to the nearest tenC
Round 169 to the nearest tenN
Round 26 to the nearest tenW
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
The final clue is hidden inside gift bags that we must divide equally among the models waiting backstage.
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
60 ÷ 6 = ?
16 ÷ 2 = ?
60 ÷ 5 = ?
30 ÷ 6 = ?
90 ÷ 10 = ?
28 ÷ 7 = ?
84 ÷ 12 = ?
55 ÷ 5 = ?
4 ÷ 4 = ?
72 ÷ 12 = ?
30 ÷ 10 = ?
Step 2 — cross out the sentence with each answer
1.The villain swiped the golden mannequin, then slipped past the bouncers.
2.The villain nabbed the diamond collar, then dropped a glitter bomb.
3.The villain hacked the dressing room lights, then slipped past the bouncers.
4.The villain hacked the dressing room lights, then left a trail of sequins.
5.The villain swiped the golden mannequin, then dropped a glitter bomb.
6.The villain strutted down the runway, then left a trail of sequins.
7.The villain strutted down the runway, then dropped a glitter bomb.
8.The villain swiped the golden mannequin, then escaped in a pink limo.
9.The villain nabbed the diamond collar, then slipped past the bouncers.
10.The villain sneaked behind the clothing rack, then left a trail of sequins.
11.The villain hacked the dressing room lights, then escaped in a pink limo.
12.The villain sneaked behind the clothing rack, then dropped a glitter bomb.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Diamond Tiara
Culprit: Karlie (Pastel Princess · Velvet Beret · Chews Bubblegum · Blunt Bob Cut · Squeaky Runway Heel)
- Clue 1 (Addition): "THE THIEF DOES NOT WEAR A SILK SCARF"1895 + 2054 = 3949 (T) · 2023 + 2547 = 4570 (F) · 6110 + 3249 = 9359 (I) · 3839 + 2900 = 6739 (D) · 1765 + 2527 = 4292 (W) · 4452 + 4609 = 9061 (S) · 2571 + 1764 = 4335 (A) · 3674 + 3396 = 7070 (O) · 2738 + 3355 = 6093 (R) · 5039 + 4453 = 9492 (N) · 2253 + 1475 = 3728 (C) · 4765 + 3745 = 8510 (E) · 2944 + 4293 = 7237 (K) · 1073 + 1301 = 2374 (H) · 1492 + 809 = 2301 (L)
- Clue 2 (Subtraction): "THE SUSPECT BLOWS HUGE PINK BUBBLEGUM BUBBLES"4392 - 1478 = 2914 (T) · 12793 - 4358 = 8435 (I) · 12868 - 4713 = 8155 (K) · 9192 - 497 = 8695 (G) · 2614 - 273 = 2341 (S) · 6049 - 276 = 5773 (M) · 9092 - 185 = 8907 (L) · 9131 - 3931 = 5200 (H) · 7318 - 3507 = 3811 (W) · 6624 - 260 = 6364 (E) · 11742 - 4054 = 7688 (B) · 8604 - 153 = 8451 (P) · 12603 - 3726 = 8877 (U) · 4895 - 1555 = 3340 (N) · 7189 - 2298 = 4891 (O) · 4691 - 2299 = 2392 (C)
- Clue 3 (Skip counting): "A LOUD SQUEAKY SHOE RUINED THEIR ESCAPE"Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (N) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22 = 18 (Q) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (P) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (C) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (D) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (K) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (E) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (Y) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (T)
- Clue 4 (Rounding): "SHORN STRANDS OF A BLUNT BOB CUT WERE FOUND"Round 7,361 to the nearest thousand = 7000 (S) · Round 4,643 to the nearest thousand = 5000 (U) · Round 2,341 to the nearest hundred = 2300 (D) · Round 267 to the nearest hundred = 300 (H) · Round 886 to the nearest hundred = 900 (T) · Round 1,074 to the nearest hundred = 1100 (A) · Round 228 to the nearest ten = 230 (L) · Round 1,719 to the nearest hundred = 1700 (B) · Round 203 to the nearest hundred = 200 (F) · Round 54 to the nearest ten = 50 (R) · Round 1,316 to the nearest hundred = 1300 (E) · Round 544 to the nearest hundred = 500 (O) · Round 126 to the nearest ten = 130 (C) · Round 169 to the nearest ten = 170 (N) · Round 26 to the nearest ten = 30 (W)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Karlie60 ÷ 6 = 10 · 16 ÷ 2 = 8 · 60 ÷ 5 = 12 · 30 ÷ 6 = 5 · 90 ÷ 10 = 9 · 28 ÷ 7 = 4 · 84 ÷ 12 = 7 · 55 ÷ 5 = 11 · 4 ÷ 4 = 1 · 72 ÷ 12 = 6 · 30 ÷ 10 = 3
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Subtraction, Skip counting, Rounding, Division
- Reading level
- grades 5-6
- Theme
- The Case of the Missing Diamond Tiara — set in The Glitter and Gold Fashion Week Gala
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects