The Great Pipe Kingdom Mystery
Someone snuck into the Mushroom Castle Vaults and swapped the Golden Star for a painted rock! The Grand Keeper of Coins needs your math skills to inspect the scene, decode clues, and identify the Pipe Bandit.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Main Power | Extra Power | Observed Tell | Hair Type | Weakness |
|---|---|---|---|---|---|
| Mayor Mushroom | Ice Flower | Propeller Box | Right Handed | Smooth Hair | Koopa Shell |
| Builder Ben | Ice Flower | Dash Boots | Right Handed | Spiky Hair | Banana Peel |
| Professor Pumper | Super Mushroom | Cloud Flower | Left Handed | Spiky Hair | Koopa Shell |
| Builder Bobbie | Super Mushroom | Mini Mushroom | Right Handed | Curly Hair | Koopa Shell |
| Baron Bowser | Super Mushroom | Mini Mushroom | Right Handed | Spiky Hair | Koopa Shell |
| Scout Topper | Ice Flower | Cloud Flower | Left Handed | Smooth Hair | Koopa Shell |
| Racer Rex | Penguin Suit | Propeller Box | Right Handed | Spiky Hair | Koopa Shell |
| Princess Penny | Ice Flower | Mini Mushroom | Right Handed | Spiky Hair | Koopa Shell |
| Plumber Pippin | Super Mushroom | Spring Mushroom | Left Handed | Curly Hair | Bob Omb Drop |
| Squire Spike | Penguin Suit | Spring Mushroom | Left Handed | Curly Hair | Banana Peel |
| Officer Olive | Fire Flower | Dash Boots | Right Handed | Spiky Hair | Koopa Shell |
| Guard Rufus | Super Leaf | Propeller Box | Left Handed | Spiky Hair | Banana Peel |
| Professor Pipe | Penguin Suit | Dash Boots | Left Handed | Smooth Hair | Banana Peel |
| Plumber Paolo | Ice Flower | Spring Mushroom | Right Handed | Smooth Hair | Koopa Shell |
| Plumber Bruno | Super Leaf | Mini Mushroom | Left Handed | Smooth Hair | Bob Omb Drop |
| Captain Copper | Super Mushroom | Cloud Flower | Left Handed | Smooth Hair | Banana Peel |
| Racer Rita | Penguin Suit | Propeller Box | Right Handed | Smooth Hair | Koopa Shell |
| Prince Pippo | Super Mushroom | Propeller Box | Left Handed | Spiky Hair | Koopa Shell |
| Plumber Marco | Super Leaf | Cloud Flower | Left Handed | Spiky Hair | Bob Omb Drop |
| Chef Toadette | Penguin Suit | Propeller Box | Left Handed | Smooth Hair | Banana Peel |
| Agent Archie | Super Mushroom | Cloud Flower | Right Handed | Spiky Hair | Koopa Shell |
Place value
The vault keypad has a glowing digit code. A note shows the exact place value of the key digit.
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
The castle guards tally up the shiny gold coins found along the secret warp pipe path.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Rounding
The pipe radar tracks the intruder distance, but the display rounds all numbers to the nearest hundred.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Subtraction
The repair crew measures how many extra power mushrooms remain after subtracting the stolen stock.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Division facts (1-12) — the last clue
The team splits the recovered star bits equally into glowing prize boxes to find the final secret.
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 Pipe Kingdom Mystery
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE A PROPELLER BOX"What is the value of the 4 in 4,011? = 4000 (T) · What is the value of the 3 in 300? = 300 (H) · What is the value of the 3 in 3,057? = 3000 (S) · What is the value of the 9 in 964? = 900 (L) · What is the value of the 1 in 3,219? = 10 (B) · What is the value of the 1 in 126? = 100 (P) · What is the value of the 8 in 8,321? = 8000 (N) · What is the value of the 9 in 9,355? = 9000 (D) · What is the value of the 7 in 974? = 70 (U) · What is the value of the 2 in 8,328? = 20 (V) · What is the value of the 2 in 270? = 200 (R) · What is the value of the 1 in 1,466? = 1000 (I) · What is the value of the 4 in 410? = 400 (X) · What is the value of the 5 in 1,251? = 50 (A) · What is the value of the 6 in 3,265? = 60 (O) · What is the value of the 9 in 396? = 90 (E)
- Clue 2 (Addition): "THE VILLAIN WAS SEEN USING THEIR RIGHT HAND"1941 + 4155 = 6096 (T) · 1920 + 3506 = 5426 (D) · 2506 + 1108 = 3614 (I) · 3459 + 3376 = 6835 (R) · 2088 + 1841 = 3929 (W) · 2021 + 3615 = 5636 (N) · 5849 + 3584 = 9433 (E) · 4283 + 4919 = 9202 (A) · 5826 + 3056 = 8882 (H) · 5466 + 3934 = 9400 (G) · 3240 + 5752 = 8992 (S) · 3329 + 2691 = 6020 (L) · 2323 + 2848 = 5171 (U) · 2047 + 1811 = 3858 (V)
- Clue 3 (Rounding): "A KOOPA SHELL KNOCKED DOWN THE VILLAIN"Round 6,779 to the nearest thousand = 7000 (A) · Round 3,694 to the nearest hundred = 3700 (N) · Round 898 to the nearest hundred = 900 (C) · Round 27 to the nearest ten = 30 (P) · Round 374 to the nearest ten = 370 (I) · Round 1,092 to the nearest hundred = 1100 (K) · Round 8,685 to the nearest thousand = 9000 (D) · Round 2,327 to the nearest hundred = 2300 (H) · Round 3,390 to the nearest thousand = 3000 (L) · Round 259 to the nearest hundred = 300 (O) · Round 233 to the nearest ten = 230 (V) · Round 2,047 to the nearest thousand = 2000 (S) · Round 49 to the nearest ten = 50 (T) · Round 1,253 to the nearest hundred = 1300 (E) · Round 2,892 to the nearest hundred = 2900 (W)
- Clue 4 (Subtraction): "SPIKY HAIR STRANDS WERE LEFT NEAR THE PIPE"12618 - 4252 = 8366 (S) · 5571 - 1024 = 4547 (N) · 7397 - 2716 = 4681 (H) · 4954 - 3722 = 1232 (T) · 5584 - 1974 = 3610 (Y) · 5567 - 3656 = 1911 (L) · 7254 - 3144 = 4110 (F) · 10637 - 2362 = 8275 (D) · 7920 - 4052 = 3868 (W) · 10439 - 3593 = 6846 (E) · 11366 - 4832 = 6534 (A) · 5482 - 876 = 4606 (P) · 11032 - 2151 = 8881 (R) · 9154 - 675 = 8479 (I) · 12503 - 4894 = 7609 (K)
- Clue 5 (Division facts (1-12)): surviving statement (box 3) → Officer Olive30 ÷ 6 = 5 · 48 ÷ 4 = 12 · 132 ÷ 12 = 11 · 1 ÷ 1 = 1 · 27 ÷ 3 = 9 · 48 ÷ 12 = 4 · 10 ÷ 5 = 2 · 63 ÷ 9 = 7 · 42 ÷ 7 = 6 · 80 ÷ 8 = 10 · 88 ÷ 11 = 8
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Addition, Rounding, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Great Pipe Kingdom Mystery — set in Mushroom Castle Vaults
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects
