The Great Kid Oil Robbery
Chief Joshua Dax Zeno blew his whistle! Someone broke into the central vaults of Slick City and stole the super-slick Kid Oil, the famous formula that keeps the kids' go-karts racing faster than lightning. We need to track down the slickest oil bandit in town before the big championship race begins!
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Racing Engine | Secret Gadget | Racing Goggles | Hair Style | Foil Weapon |
|---|---|---|---|---|---|
| Speedy Sam | Slick Oil Sprayer | Sticky Goop Launcher | Wears Blue Racing Goggles | Spiky Green Mohawks | Allergic to Bubblegum |
| Oily Oliver | Super Turbo Engine | Deployable Spike Strips | Wears Red Racing Goggles | Bright Orange Braids | Slippery on Banana Peels |
| Piston Pete | Super Turbo Engine | High-Speed Grapple Hook | Wears Blue Racing Goggles | Bright Orange Braids | Allergic to Bubblegum |
| Turbo Tina | Heavy Cargo Crane | High-Speed Grapple Hook | Wears Red Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Nitro Ned | Glider Flight Wings | Sticky Goop Launcher | Wears Blue Racing Goggles | Neon Blue Spikes | Allergic to Bubblegum |
| Racer Rachel | Heavy Cargo Crane | Sonic Siren Jammer | Wears Red Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Spike Spencer | Super Turbo Engine | Sticky Goop Launcher | Wears Red Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Ignition Iris | Magnetic Tow Hook | Glow-in-the-Dark Headlights | Wears Red Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Axle Abby | Slick Oil Sprayer | Glow-in-the-Dark Headlights | Wears Red Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Fuel Mary | Slick Oil Sprayer | High-Speed Grapple Hook | Wears Blue Racing Goggles | Bright Orange Braids | Scared of Cute Puppies |
| Gasket Gail | Magnetic Tow Hook | Sonic Siren Jammer | Wears Blue Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Bumper Bob | Slick Oil Sprayer | Sonic Siren Jammer | Wears Red Racing Goggles | Bright Orange Braids | Allergic to Bubblegum |
| Greasy Greg | Glider Flight Wings | Deployable Spike Strips | Wears Red Racing Goggles | Bright Orange Braids | Allergic to Bubblegum |
| Drift Diane | Heavy Cargo Crane | High-Speed Grapple Hook | Wears Red Racing Goggles | Neon Blue Spikes | Allergic to Bubblegum |
| Skidmark Sean | Heavy Cargo Crane | Sticky Goop Launcher | Wears Blue Racing Goggles | Bright Orange Braids | Allergic to Bubblegum |
| Wrenchy Will | Slick Oil Sprayer | Sticky Goop Launcher | Wears Red Racing Goggles | Neon Blue Spikes | Slippery on Banana Peels |
| Crankcase Chris | Super Turbo Engine | Sticky Goop Launcher | Wears Blue Racing Goggles | Neon Blue Spikes | Scared of Cute Puppies |
| Exhaust Elsa | Slick Oil Sprayer | Sonic Siren Jammer | Wears Red Racing Goggles | Bright Orange Braids | Slippery on Banana Peels |
| Slick Sally | Slick Oil Sprayer | High-Speed Grapple Hook | Wears Blue Racing Goggles | Neon Blue Spikes | Scared of Cute Puppies |
| Revving Roy | Glider Flight Wings | Deployable Spike Strips | Wears Blue Racing Goggles | Spiky Green Mohawks | Allergic to Bubblegum |
| Chassis Charlie | Slick Oil Sprayer | High-Speed Grapple Hook | Wears Blue Racing Goggles | Neon Blue Spikes | Allergic to Bubblegum |
Subtraction
Chief Joshua Dax Zeno inspects the main warehouse. We had a huge inventory of oil barrels, but several are now missing. If we subtract the remaining count from the original stock, we can determine the first clue.
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
Our patrol officers are gathering stray oil cans dropped along the highway escape route. We need to add up the cans found on the grass and the pavement to unlock this clue.
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 bandit locked the vault keypad with a digital code. The display screen is glitching and only showing a massive number. We must use place value to find the correct digit to reveal our next clue.
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
A witness saw the bandit load some loot onto a getaway truck. The truck could only carry a small fraction of the heavy cargo. Let us calculate that fraction of the total weight to narrow down our suspects.
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
The bandit vehicle is leaking fuel as they speed away. Chief Joshua Dax Zeno estimates they have used a fraction of their gas tank. Finding that fraction of the tank capacity will help us locate the thief.
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 Great Kid Oil Robbery
- Clue 1 (Subtraction): "THE THIEF DOES NOT USE THE GOOP LAUNCHER"6996 - 3504 = 3492 (T) · 10240 - 3900 = 6340 (N) · 5337 - 4096 = 1241 (P) · 5706 - 1132 = 4574 (L) · 8621 - 3570 = 5051 (S) · 4622 - 47 = 4575 (U) · 6553 - 2914 = 3639 (I) · 7070 - 106 = 6964 (R) · 11178 - 3684 = 7494 (D) · 8995 - 3461 = 5534 (F) · 11724 - 4416 = 7308 (A) · 10077 - 1421 = 8656 (E) · 7294 - 612 = 6682 (C) · 11462 - 2541 = 8921 (O) · 6257 - 1590 = 4667 (H) · 10950 - 4033 = 6917 (G)
- Clue 2 (Addition): "RED GOGGLES WERE SPOTTED AT THE HEIST"3032 + 1329 = 4361 (R) · 1776 + 2858 = 4634 (G) · 1193 + 1711 = 2904 (P) · 4105 + 5698 = 9803 (E) · 3727 + 2293 = 6020 (O) · 2740 + 2929 = 5669 (H) · 1656 + 3371 = 5027 (L) · 3991 + 4062 = 8053 (A) · 3828 + 3414 = 7242 (S) · 4374 + 2110 = 6484 (I) · 3665 + 2572 = 6237 (D) · 1664 + 1040 = 2704 (T) · 3014 + 3502 = 6516 (W)
- Clue 3 (Place value): "THE VILLAIN SLIPPED ON A BANANA PEEL"What is the value of the 7 in 67,054? = 7000 (T) · What is the value of the 3 in 286,630? = 30 (L) · What is the value of the 4 in 774,821? = 4000 (N) · What is the value of the 8 in 638,263? = 8000 (S) · What is the value of the 4 in 97,421? = 400 (D) · What is the value of the 3 in 53,962? = 3000 (H) · What is the value of the 2 in 48,268? = 200 (O) · What is the value of the 2 in 62,301? = 2000 (V) · What is the value of the 6 in 184,618? = 600 (I) · What is the value of the 6 in 286,418? = 6000 (A) · What is the value of the 2 in 44,728? = 20 (P) · What is the value of the 7 in 22,792? = 700 (E) · What is the value of the 7 in 38,274? = 70 (B)
- Clue 4 (Fractions of a number): "NEON BLUE SPIKY HAIR CLUNG TO THE GEARS"1/3 of 117 = 39 (N) · 2/6 of 111 = 37 (C) · 2/4 of 44 = 22 (Y) · 2/10 of 10 = 2 (A) · 1/6 of 108 = 18 (U) · 8/10 of 30 = 24 (H) · 4/8 of 58 = 29 (S) · 1/4 of 160 = 40 (E) · 3/4 of 36 = 27 (R) · 5/10 of 52 = 26 (L) · 2/4 of 22 = 11 (K) · 1/8 of 112 = 14 (G) · 1/6 of 102 = 17 (B) · 2/10 of 20 = 4 (T) · 2/3 of 15 = 10 (P) · 2/6 of 84 = 28 (O) · 2/8 of 92 = 23 (I)
- Clue 5 (Fractions of a number): surviving statement (box 1) → Ignition Iris1/6 of 72 = 12 · 1/4 of 20 = 5 · 1/8 of 16 = 2 · 1/5 of 20 = 4 · 5/10 of 20 = 10 · 1/8 of 64 = 8 · 1/8 of 24 = 3 · 2/6 of 18 = 6 · 7/8 of 8 = 7 · 2/4 of 18 = 9 · 1/8 of 88 = 11
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Subtraction, Addition, Place value, Fractions of a number
- Reading level
- grades 5-6
- Theme
- The Great Kid Oil Robbery — set in Slick City Go-Kart Arena
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects
