🏎️ SkincareGrade 6Reading: grades 5-6AdditionSubtractionWord problemsPercentagesDivision
The Case of the Missing Glow Serum
A devious rogue chemist has broken into the sterile lab vault and stolen the legendary glowing youth formula! The Glow Laboratory is in total panic. It is up to you to analyze the residue, check the security logs, and identify the thief before the glowing formula is lost forever.
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 | Active Ingredient | Lab Equipment | Safety Wear | Hairstyle | Vulnerability |
|---|---|---|---|---|---|
| Kate Somerville | retinol booster | digital pH meter | wears silver safety goggles | sleek high ponytail | ruined by bright sunlight |
| Estee Lauder | retinol booster | microfluidic mixer | wears silver safety goggles | neat space buns | ruined by extreme cold |
| Kim Kardashian | vitamin c serum | ultrasonic spatula | wears gold safety goggles | neat space buns | ruined by extreme cold |
| Rihanna Fenty | niacinamide | centrifuge spinner | wears silver safety goggles | sleek high ponytail | ruined by extreme cold |
| Charlotte Tilbury | retinol booster | centrifuge spinner | wears gold safety goggles | bright neon green hair | ruined by heavy steam |
| Kylie Jenner | niacinamide | ultrasonic spatula | wears gold safety goggles | neat space buns | ruined by bright sunlight |
| Hyram Yarbro | vitamin c serum | ultrasonic spatula | wears silver safety goggles | neat space buns | ruined by heavy steam |
| Joanna Vargas | salicylic acid | centrifuge spinner | wears gold safety goggles | sleek high ponytail | ruined by bright sunlight |
| Anjali Mahto | salicylic acid | digital pH meter | wears silver safety goggles | sleek high ponytail | ruined by bright sunlight |
| Dennis Gross | retinol booster | ultrasonic spatula | wears silver safety goggles | sleek high ponytail | ruined by bright sunlight |
| Gwyneth Paltrow | niacinamide | digital pH meter | wears silver safety goggles | sleek high ponytail | ruined by heavy steam |
| Huda Kattan | hyaluronic acid | centrifuge spinner | wears gold safety goggles | neat space buns | ruined by bright sunlight |
| Liah Yoo | niacinamide | ultraviolet sterilizer | wears silver safety goggles | sleek high ponytail | ruined by bright sunlight |
| Cassandra Bankson | retinol booster | ultrasonic spatula | wears silver safety goggles | bright neon green hair | ruined by extreme cold |
| Sunday Riley | retinol booster | microfluidic mixer | wears silver safety goggles | sleek high ponytail | ruined by heavy steam |
| Tata Harper | vitamin c serum | centrifuge spinner | wears gold safety goggles | neat space buns | ruined by bright sunlight |
| James Welsh | vitamin c serum | microfluidic mixer | wears gold safety goggles | sleek high ponytail | ruined by bright sunlight |
| Susan Yara | retinol booster | ultraviolet sterilizer | wears silver safety goggles | sleek high ponytail | ruined by heavy steam |
| Andrea Suarez | hyaluronic acid | microfluidic mixer | wears silver safety goggles | bright neon green hair | ruined by heavy steam |
| Jen Atkin | niacinamide | digital pH meter | wears silver safety goggles | bright neon green hair | ruined by bright sunlight |
| Miranda Kerr | vitamin c serum | microfluidic mixer | wears silver safety goggles | sleek high ponytail | ruined by bright sunlight |
Clue 1
Addition
The chemist counts the ruined sunscreen bottles in the lab bins. Add the morning batch to the afternoon batch to find the total broken bottles.
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
5298
3625
6443
T
5298
3625
3530
6443
5923
4117
7437
6443
8922
6027
7437
T
5298
6142
8922
6443
T
5298
3625
6443
6142
9803
T
5298
3921
7367
8922
7437
6027
3530
9186
8922
8341
7367
T
5298
6142
9803
7367
2252 + 3046 =T
2946 + 3497 =E
4420 + 5383 =L
2448 + 1473 =R
3016 + 2907 =F
3278 + 5908 =C
1421 + 2696 =D
2463 + 3564 =N
2255 + 1275 =I
1888 + 1737 =H
5503 + 3419 =S
3551 + 3816 =A
5051 + 2386 =O
2276 + 3866 =U
2842 + 5499 =P
0/15 letters found
Clue 2
Subtraction
To measure the pure moisturizer left in the main tank, subtract the spilled gallons from the starting volume.
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
7025
4635
8012
8974
6258
2947
S
7025
4460
4984
6258
7782
3297
3273
2399
3273
3273
8012
6258
S
7025
7785
6258
2947
6258
4984
2399
2364
2785
4816
4635
2785
S
7025
4635
4816
6258
7402 - 377 =S
7655 - 3195 =A
7605 - 2621 =F
10866 - 3081 =W
7124 - 4760 =U
7198 - 4251 =R
8206 - 424 =T
8813 - 3997 =D
7709 - 1451 =E
6084 - 3685 =O
9587 - 1575 =L
11668 - 2694 =V
5573 - 938 =I
3733 - 948 =N
4473 - 1176 =Y
7179 - 3906 =G
0/16 letters found
Clue 3
Word problems
A custom order requires several mini skincare kits. Solve this word problem about the face wash and toner ratios to unlock the secure drawer.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
R
96
60
66
104
79
62
33
Y
33
R
96
66
G
H
T
S
60
104
L
66
G
H
T
Skincare specialist found 34 dropper bottles yesterday and 62 more today. How many dropper bottles in all?R
There were 100 sheet masks. 38 were used up. How many sheet masks are left?D
Skincare specialist lined up 11 rows of 6 dropper bottles. How many dropper bottles in all?I
There were 113 sunscreen tubes. 9 were used up. How many sunscreen tubes are left?N
Skincare specialist found 22 sheet masks yesterday and 57 more today. How many sheet masks in all?E
Skincare specialist found 25 sunscreen tubes yesterday and 8 more today. How many sunscreen tubes in all?B
Skincare specialist lined up 12 rows of 5 dropper bottles. How many dropper bottles in all?U
0/7 letters found
Clue 4
Percentages
The thief altered the active concentration of the glowing facial serum. Find the percentage of vitamin C in the sample to isolate the bad mixture.
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
43
2
A
43
11
23
10
11
22
44
1
23
A
43
33
21
22
22
45
2
11
38
2
3
1
28
31
10
A
43
11
21
27
A
43
33
21
22
44
10
10% of 430 =A
10% of 10 =O
10% of 220 =E
10% of 440 =F
10% of 330 =S
50% of 54 =W
5% of 200 =T
40% of 5 =H
10% of 230 =R
40% of 95 =G
50% of 56 =N
20% of 155 =Y
25% of 180 =K
10% of 110 =I
75% of 28 =L
50% of 6 =P
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
We must divide the remaining rescue cream evenly among the damaged test tubes to clean the workstation.
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
99 ÷ 9 = ?
9 ÷ 1 = ?
44 ÷ 11 = ?
6 ÷ 3 = ?
30 ÷ 6 = ?
54 ÷ 9 = ?
30 ÷ 3 = ?
16 ÷ 2 = ?
28 ÷ 4 = ?
12 ÷ 1 = ?
15 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain drips the golden vitamin c serum, then clogs the microfluidic mixer.
2.The villain pours the silky niacinamide, then steals the ultrasonic spatula.
3.The villain drips the golden vitamin c serum, then steals the ultrasonic spatula.
4.The villain applies the smooth retinol booster, then recalibrates the digital pH meter.
5.The villain sprays the salicylic acid mist, then unbalances the centrifuge spinner.
6.The villain drips the golden vitamin c serum, then unbalances the centrifuge spinner.
7.The villain drips the golden vitamin c serum, then sabotages the ultraviolet sterilizer.
8.The villain applies the smooth retinol booster, then clogs the microfluidic mixer.
9.The villain pours the silky niacinamide, then sabotages the ultraviolet sterilizer.
10.The villain pours the silky niacinamide, then clogs the microfluidic mixer.
11.The villain sprays the salicylic acid mist, then recalibrates the digital pH meter.
12.The villain splashes the glowing hyaluronic acid, then unbalances the centrifuge spinner.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Glow Serum
Culprit: Miranda Kerr (vitamin c serum · microfluidic mixer · wears silver safety goggles · sleek high ponytail · ruined by bright sunlight)
- Clue 1 (Addition): "THE THIEF DOES NOT USE THE ULTRASONIC SPATULA"2252 + 3046 = 5298 (T) · 2946 + 3497 = 6443 (E) · 4420 + 5383 = 9803 (L) · 2448 + 1473 = 3921 (R) · 3016 + 2907 = 5923 (F) · 3278 + 5908 = 9186 (C) · 1421 + 2696 = 4117 (D) · 2463 + 3564 = 6027 (N) · 2255 + 1275 = 3530 (I) · 1888 + 1737 = 3625 (H) · 5503 + 3419 = 8922 (S) · 3551 + 3816 = 7367 (A) · 5051 + 2386 = 7437 (O) · 2276 + 3866 = 6142 (U) · 2842 + 5499 = 8341 (P)
- Clue 2 (Subtraction): "SILVER SAFETY GOGGLES WERE FOUND INSIDE"7402 - 377 = 7025 (S) · 7655 - 3195 = 4460 (A) · 7605 - 2621 = 4984 (F) · 10866 - 3081 = 7785 (W) · 7124 - 4760 = 2364 (U) · 7198 - 4251 = 2947 (R) · 8206 - 424 = 7782 (T) · 8813 - 3997 = 4816 (D) · 7709 - 1451 = 6258 (E) · 6084 - 3685 = 2399 (O) · 9587 - 1575 = 8012 (L) · 11668 - 2694 = 8974 (V) · 5573 - 938 = 4635 (I) · 3733 - 948 = 2785 (N) · 4473 - 1176 = 3297 (Y) · 7179 - 3906 = 3273 (G)
- Clue 3 (Word problems): "RUINED BY BRIGHT SUNLIGHT"Skincare specialist found 34 dropper bottles yesterday and 62 more today. How many dropper bottles in all? = 96 (R) · There were 100 sheet masks. 38 were used up. How many sheet masks are left? = 62 (D) · Skincare specialist lined up 11 rows of 6 dropper bottles. How many dropper bottles in all? = 66 (I) · There were 113 sunscreen tubes. 9 were used up. How many sunscreen tubes are left? = 104 (N) · Skincare specialist found 22 sheet masks yesterday and 57 more today. How many sheet masks in all? = 79 (E) · Skincare specialist found 25 sunscreen tubes yesterday and 8 more today. How many sunscreen tubes in all? = 33 (B) · Skincare specialist lined up 12 rows of 5 dropper bottles. How many dropper bottles in all? = 60 (U)
- Clue 4 (Percentages): "A HAIR TIE FOR A SLEEK HIGH PONYTAIL WAS LEFT"10% of 430 = 43 (A) · 10% of 10 = 1 (O) · 10% of 220 = 22 (E) · 10% of 440 = 44 (F) · 10% of 330 = 33 (S) · 50% of 54 = 27 (W) · 5% of 200 = 10 (T) · 40% of 5 = 2 (H) · 10% of 230 = 23 (R) · 40% of 95 = 38 (G) · 50% of 56 = 28 (N) · 20% of 155 = 31 (Y) · 25% of 180 = 45 (K) · 10% of 110 = 11 (I) · 75% of 28 = 21 (L) · 50% of 6 = 3 (P)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Miranda Kerr99 ÷ 9 = 11 · 9 ÷ 1 = 9 · 44 ÷ 11 = 4 · 6 ÷ 3 = 2 · 30 ÷ 6 = 5 · 54 ÷ 9 = 6 · 30 ÷ 3 = 10 · 16 ÷ 2 = 8 · 28 ÷ 4 = 7 · 12 ÷ 1 = 12 · 15 ÷ 5 = 3
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Addition, Subtraction, Word problems, Percentages, Division
- Reading level
- grades 5-6
- Theme
- The Case of the Missing Glow Serum — set in The Glow Laboratory
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects