🔎 HospitalsGrade 10Reading: grades 7-9MultiplicationSubtractionAdditionWord problemsDivision

The Great Hospital Mix-Up Mystery

Someone is tampering with medical records and swapping equipment across the hospital wings. Work through the clues to identify the culprit before the night shift ends.

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	Specialty	Medical Tool	Dominant Hand	Hair Color	Vulnerability
Dr. Sigmund Freud	Cardiology	Ultrasound	Left Handed	Blonde Hair	Siren Alarm
Dr. Virginia Apgar	Radiology	Ultrasound	Left Handed	Red Hair	Siren Alarm
Dr. Helen Taussig	Cardiology	Otoscope	Left Handed	Red Hair	Siren Alarm
Dr. Ben Carson	Radiology	Surgical Tray	Left Handed	Blonde Hair	Sanitizer Spray
Dr. Sanjay Gupta	Radiology	Surgical Tray	Left Handed	Dark Hair	Bright Spotlight
Dr. Elizabeth Blackwell	Radiology	Stethoscope	Left Handed	Blonde Hair	Sanitizer Spray
Dr. Howard Florey	Cardiology	Ultrasound	Left Handed	Dark Hair	Sanitizer Spray
Nurse Edith Cavell	Neurology	Otoscope	Right Handed	Blonde Hair	Sanitizer Spray
Dr. Robert Koch	Radiology	Otoscope	Left Handed	Blonde Hair	Sanitizer Spray
Dr. Audrey Evans	Orthopedics	Ultrasound	Left Handed	Blonde Hair	Siren Alarm
Dr. Alexander Fleming	Pediatrics	Otoscope	Right Handed	Blonde Hair	Sanitizer Spray
Nurse Clara Barton	Radiology	Otoscope	Right Handed	Red Hair	Siren Alarm
Dr. Charles Drew	Cardiology	Otoscope	Right Handed	Blonde Hair	Siren Alarm
Dr. Walter Reed	Pediatrics	Defibrillator	Left Handed	Red Hair	Sanitizer Spray
Nurse Mary Seacole	Radiology	Surgical Tray	Left Handed	Blonde Hair	Bright Spotlight
Dr. Paul Farmer	Cardiology	Otoscope	Right Handed	Dark Hair	Siren Alarm
Nurse Florence Nightingale	Orthopedics	Ultrasound	Left Handed	Blonde Hair	Sanitizer Spray
Dr. Jonas Salk	Radiology	Otoscope	Left Handed	Red Hair	Bright Spotlight
Dr. Jane Cooke Wright	Neurology	Otoscope	Right Handed	Blonde Hair	Siren Alarm
Dr. Mae Jemison	Orthopedics	Stethoscope	Left Handed	Blonde Hair	Sanitizer Spray
Dr. William Osler	Cardiology	Defibrillator	Right Handed	Blonde Hair	Sanitizer Spray

Clue 1

Multiplication facts (1-12)

To check room supplies, we multiplied the medical tray counts across all five hospital wings.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

132

7 × 9 =T

6 × 11 =R

1 × 3 =E

7 × 1 =U

10 × 1 =N

6 × 8 =H

5 × 9 =B

9 × 6 =A

6 × 1 =P

5 × 1 =S

11 × 12 =D

7 × 10 =C

5 × 11 =O

0/13 letters found

Clue 2

Subtraction

We subtracted the missing chart folders from the main filing room total to trace the culprit.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

1472

2390

4210

5577

8330

5577

5709

4210

4451

1472

7622

1624

3850

1472

4210

4451

2390

7773

1624

1472

5577

7622

3740

1472

2390

8367

4210

1261

1472

2390

7773

7368

8316

6116 - 4644 =T

9391 - 4940 =C

3559 - 1935 =R

7354 - 4964 =H

9195 - 3486 =P

10717 - 2350 =L

7353 - 1776 =S

11667 - 4299 =N

11828 - 3512 =D

11916 - 4294 =W

7243 - 3033 =E

4368 - 518 =O

6539 - 2799 =I

11552 - 3779 =A

5374 - 4113 =F

13104 - 4774 =U

0/16 letters found

Clue 3

Addition

Adding up the duty logs from each floor revealed an unexpected time gap.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

9280

7498

3792

4026

7579

5426

2138

4123

4251

9280

6007

5426

3792

7409

6007

4123

8036

2715

2854

3780

4294

4251

9280

4251

3035

3792

4123

2854

2138

4123

3780

7337

5969 + 3311 =T

1912 + 4095 =F

2302 + 1724 =C

5153 + 2256 =D

2459 + 1664 =R

1227 + 1808 =Z

2777 + 2649 =L

3505 + 4074 =U

1061 + 1077 =P

1800 + 2451 =I

2334 + 1458 =E

1393 + 1461 =S

1762 + 2532 =N

3411 + 4087 =H

1332 + 2448 =A

1474 + 1241 =M

3001 + 4336 =Y

4589 + 3447 =O

0/18 letters found

Clue 4

Word problems

The head nurse solved the shift schedule breakdown to uncover our next clue.

Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.

Astrandof

116

hairturnedupatthescene.

There were 93 syringes. 26 were used up. How many syringes are left?B

There were 96 stethoscopes. 35 were used up. How many stethoscopes are left?E

Head nurse lined up 5 rows of 3 stethoscopes. How many stethoscopes in all?H

Head nurse found 7 chart folders yesterday and 6 more today. How many chart folders in all?N

Head nurse found 4 thermometers yesterday and 112 more today. How many thermometers in all?O

There were 42 bandages. 16 were used up. How many bandages are left?D

Head nurse lined up 9 rows of 9 stethoscopes. How many stethoscopes in all?L

0/7 letters found

Clue 5

Division facts (1-12) — the last clue

Dividing the lab samples evenly into test racks helped us isolate the unknown signature.

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

6 ÷ 6 = ?

60 ÷ 12 = ?

36 ÷ 9 = ?

6 ÷ 1 = ?

72 ÷ 6 = ?

30 ÷ 10 = ?

28 ÷ 4 = ?

10 ÷ 1 = ?

16 ÷ 2 = ?

24 ÷ 12 = ?

33 ÷ 3 = ?

Step 2 — cross out the sentence with each answer

1.The villain misplaced orthopedic bone splints, then cleaned the area with a stethoscope.

2.The villain tampered with neurology brain scanners, then cleaned the area with a stethoscope.

3.The villain scrambled radiology x ray files, then scanned the door with an ultrasound.

4.The villain scrambled radiology x ray files, then jammed the cart with a surgical tray.

5.The villain scrambled radiology x ray files, then cleaned the area with a stethoscope.

6.The villain misplaced orthopedic bone splints, then jammed the cart with a surgical tray.

7.The villain rerouted cardiology telemetry monitors, then inspected the lock with an otoscope.

8.The villain rerouted cardiology telemetry monitors, then sparked the breaker with a defibrillator.

9.The villain misplaced orthopedic bone splints, then scanned the door with an ultrasound.

10.The villain rerouted cardiology telemetry monitors, then cleaned the area with a stethoscope.

11.The villain rerouted cardiology telemetry monitors, then jammed the cart with a surgical tray.

12.The villain swapped pediatric patient wristbands, then jammed the cart with a surgical tray.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Great Hospital Mix-Up Mystery

Culprit: Nurse Florence Nightingale (Orthopedics · Ultrasound · Left Handed · Blonde Hair · Sanitizer Spray)

Clue 1 (Multiplication facts (1-12)): "THE SABOTEUR DOES NOT USE AN OTOSCOPE"
7 × 9 = 63 (T) · 6 × 11 = 66 (R) · 1 × 3 = 3 (E) · 7 × 1 = 7 (U) · 10 × 1 = 10 (N) · 6 × 8 = 48 (H) · 5 × 9 = 45 (B) · 9 × 6 = 54 (A) · 6 × 1 = 6 (P) · 5 × 1 = 5 (S) · 11 × 12 = 132 (D) · 7 × 10 = 70 (C) · 5 × 11 = 55 (O)
Clue 2 (Subtraction): "THE SUSPECT WROTE CHARTS WITH LEFT HAND"
6116 - 4644 = 1472 (T) · 9391 - 4940 = 4451 (C) · 3559 - 1935 = 1624 (R) · 7354 - 4964 = 2390 (H) · 9195 - 3486 = 5709 (P) · 10717 - 2350 = 8367 (L) · 7353 - 1776 = 5577 (S) · 11667 - 4299 = 7368 (N) · 11828 - 3512 = 8316 (D) · 11916 - 4294 = 7622 (W) · 7243 - 3033 = 4210 (E) · 4368 - 518 = 3850 (O) · 6539 - 2799 = 3740 (I) · 11552 - 3779 = 7773 (A) · 5374 - 4113 = 1261 (F) · 13104 - 4774 = 8330 (U)
Clue 3 (Addition): "THE CULPRIT FLED FROM SANITIZER SPRAY"
5969 + 3311 = 9280 (T) · 1912 + 4095 = 6007 (F) · 2302 + 1724 = 4026 (C) · 5153 + 2256 = 7409 (D) · 2459 + 1664 = 4123 (R) · 1227 + 1808 = 3035 (Z) · 2777 + 2649 = 5426 (L) · 3505 + 4074 = 7579 (U) · 1061 + 1077 = 2138 (P) · 1800 + 2451 = 4251 (I) · 2334 + 1458 = 3792 (E) · 1393 + 1461 = 2854 (S) · 1762 + 2532 = 4294 (N) · 3411 + 4087 = 7498 (H) · 1332 + 2448 = 3780 (A) · 1474 + 1241 = 2715 (M) · 3001 + 4336 = 7337 (Y) · 4589 + 3447 = 8036 (O)
Clue 4 (Word problems): "BLONDE HAIR"
There were 93 syringes. 26 were used up. How many syringes are left? = 67 (B) · There were 96 stethoscopes. 35 were used up. How many stethoscopes are left? = 61 (E) · Head nurse lined up 5 rows of 3 stethoscopes. How many stethoscopes in all? = 15 (H) · Head nurse found 7 chart folders yesterday and 6 more today. How many chart folders in all? = 13 (N) · Head nurse found 4 thermometers yesterday and 112 more today. How many thermometers in all? = 116 (O) · There were 42 bandages. 16 were used up. How many bandages are left? = 26 (D) · Head nurse lined up 9 rows of 9 stethoscopes. How many stethoscopes in all? = 81 (L)
Clue 5 (Division facts (1-12)): surviving statement (box 9) → Nurse Florence Nightingale
6 ÷ 6 = 1 · 60 ÷ 12 = 5 · 36 ÷ 9 = 4 · 6 ÷ 1 = 6 · 72 ÷ 6 = 12 · 30 ÷ 10 = 3 · 28 ÷ 4 = 7 · 10 ÷ 1 = 10 · 16 ÷ 2 = 8 · 24 ÷ 12 = 2 · 33 ÷ 3 = 11

About this mystery

Grade level: Grade 10 math
Math topics: Multiplication, Subtraction, Addition, Word problems, Division
Reading level: grades 7-9
Theme: The Great Hospital Mix-Up Mystery — set in Metro General Hospital
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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