The Lockdown of Precinct Nine
Chief Joshua Dax Zeno has been trapped in a high-tech stasis bubble inside his own office! The Kid Police Department is on lockdown. We must analyze the evidence to identify the rogue agent who sabotaged the precinct before the stasis lock becomes permanent.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Primary Tactic | Special Gear | Observable Habit | Fiber Evidence | Tactical Counter |
|---|---|---|---|---|---|
| Detective Vance | smoke bombs | stun batons | left-handed | spiky blue hair | glitter paint |
| Cadet Steele | laser cuffs | disguise kits | left-handed | neon green hair | flashlight beams |
| Agent Pierce | smoke bombs | stun batons | wears glasses | bright orange hair | glitter paint |
| Cadet Miller | laser cuffs | disguise kits | left-handed | bright orange hair | flashlight beams |
| Detective Flint | voice mimicry | stealth boots | wears glasses | bright orange hair | flashlight beams |
| Sergeant Knox | voice mimicry | stun batons | left-handed | neon green hair | glitter paint |
| Cadet Wilder | drone hacking | disguise kits | wears glasses | bright orange hair | glitter paint |
| Officer Stone | laser cuffs | grapple guns | wears glasses | neon green hair | glitter paint |
| Detective Rigg | drone hacking | night vision | wears glasses | spiky blue hair | flashlight beams |
| Agent Ryder | drone hacking | stealth boots | wears glasses | spiky blue hair | glitter paint |
| Sergeant Brooks | smoke bombs | disguise kits | wears glasses | spiky blue hair | loud sirens |
| Detective Slate | smoke bombs | stun batons | wears glasses | neon green hair | flashlight beams |
| Officer Bishop | voice mimicry | disguise kits | left-handed | neon green hair | loud sirens |
| Sergeant Hayes | voice mimicry | stealth boots | left-handed | neon green hair | flashlight beams |
| Sergeant Gable | laser cuffs | stun batons | left-handed | bright orange hair | flashlight beams |
| Cadet Sterling | lock picking | night vision | left-handed | bright orange hair | glitter paint |
| Agent Carver | lock picking | grapple guns | left-handed | neon green hair | flashlight beams |
| Detective Frost | laser cuffs | night vision | left-handed | neon green hair | flashlight beams |
| Sergeant Wolf | smoke bombs | disguise kits | left-handed | bright orange hair | loud sirens |
| Officer Cooper | smoke bombs | stun batons | left-handed | neon green hair | loud sirens |
| Officer Briggs | lock picking | night vision | left-handed | neon green hair | flashlight beams |
Subtraction
Our team inventor counted the emergency lock-picks in the armory. After subtracting the stolen gear from the original inventory, we found a clue hidden in the empty storage drawer.
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)
The security cameras captured a grid of locker doors blinking in a strange pattern. By multiplying the rows of lockers by the flashing lights, we decoded a secret suspect file.
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
We gathered the heavy boots left behind in the precinct mudroom. Adding their total weights together gave us the exact frequency needed to unlock a scrambler message.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Place value
The main server room door has a digital keypad that records the value of each digit. Finding the digit in the hundreds place of the override code revealed a crucial clue about the intruder.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Fractions of a number — the last clue
A chemical vapor was released during the getaway. By calculating a fraction of the remaining energy particles on the wall, we isolated the signature of the suspect.
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 Lockdown of Precinct Nine
- Clue 1 (Subtraction): "THE SABOTEUR DOES NOT WEAR STEALTH BOOTS"6615 - 3410 = 3205 (T) · 6488 - 4149 = 2339 (H) · 6944 - 2494 = 4450 (U) · 4203 - 1549 = 2654 (L) · 8182 - 1946 = 6236 (D) · 6934 - 594 = 6340 (S) · 10305 - 3240 = 7065 (B) · 3143 - 1957 = 1186 (O) · 12056 - 3867 = 8189 (E) · 9980 - 3123 = 6857 (R) · 11906 - 3525 = 8381 (A) · 8350 - 3609 = 4741 (N) · 12938 - 4838 = 8100 (W)
- Clue 2 (Multiplication facts (1-12)): "THE SUSPECT DROPPED A LEFT HANDED HOLSTER"1 × 1 = 1 (T) · 2 × 11 = 22 (A) · 1 × 10 = 10 (E) · 5 × 6 = 30 (P) · 7 × 4 = 28 (N) · 1 × 9 = 9 (O) · 10 × 9 = 90 (H) · 4 × 4 = 16 (U) · 7 × 8 = 56 (C) · 4 × 12 = 48 (L) · 7 × 6 = 42 (R) · 11 × 8 = 88 (D) · 2 × 3 = 6 (S) · 7 × 12 = 84 (F)
- Clue 3 (Addition): "BRIGHT FLASHLIGHT BEAMS BLIND THE VILLAIN"1166 + 1247 = 2413 (B) · 2146 + 982 = 3128 (R) · 2402 + 1917 = 4319 (D) · 3644 + 3905 = 7549 (L) · 4398 + 4804 = 9202 (G) · 5359 + 4277 = 9636 (S) · 1805 + 2262 = 4067 (E) · 2337 + 4505 = 6842 (H) · 4887 + 4311 = 9198 (T) · 3871 + 2276 = 6147 (F) · 3176 + 4338 = 7514 (A) · 3350 + 2441 = 5791 (I) · 4795 + 3827 = 8622 (M) · 3003 + 6500 = 9503 (V) · 1930 + 2091 = 4021 (N)
- Clue 4 (Place value): "WE FOUND NEON GREEN HAIR ON THE DESK"What is the value of the 8 in 128,093? = 8000 (W) · What is the value of the 1 in 851,588? = 1000 (K) · What is the value of the 5 in 468,529? = 500 (I) · What is the value of the 4 in 21,746? = 40 (O) · What is the value of the 3 in 152,832? = 30 (N) · What is the value of the 8 in 144,891? = 800 (F) · What is the value of the 4 in 809,451? = 400 (D) · What is the value of the 6 in 526,298? = 6000 (T) · What is the value of the 4 in 64,566? = 4000 (H) · What is the value of the 1 in 88,412? = 10 (R) · What is the value of the 7 in 37,888? = 7000 (U) · What is the value of the 7 in 64,570? = 70 (E) · What is the value of the 6 in 20,609? = 600 (G) · What is the value of the 2 in 10,244? = 200 (S) · What is the value of the 5 in 15,144? = 5000 (A)
- Clue 5 (Fractions of a number): surviving statement (box 1) → Cadet Steele2/4 of 4 = 2 · 1/6 of 48 = 8 · 2/8 of 12 = 3 · 4/6 of 15 = 10 · 4/6 of 6 = 4 · 2/6 of 15 = 5 · 6/8 of 16 = 12 · 1/6 of 66 = 11 · 1/6 of 54 = 9 · 1/8 of 56 = 7 · 2/3 of 9 = 6
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Subtraction, Multiplication, Addition, Place value, Fractions of a number
- Reading level
- grades 7-9
- Theme
- The Lockdown of Precinct Nine — set in Kid Police Department Headquarters
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects