🦕 Dinosaurs, CatsGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
The Great Catnip Fossil Heist
A sneaky thief has snatched the priceless Golden Catnip Fossil from the Grand Dig Site! Chief Inspector Whiskers needs your help to scan the tracks, solve the clues, and catch the sneaky culprit.
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 | Dino Suit | Stealth Tool | Dominant Paw | Fur Type | Distraction |
|---|---|---|---|---|---|
| Oliver | Tricera-Couch Rider | Squeaky Mouse Drone | Right-pawed | Calico Fur | Warm Sunny Spots |
| Morris | Tricera-Couch Rider | Fish-Bone Grappling Hook | Right-pawed | Tabby Stripes | Crinkly Paper Bags |
| Berlioz | Raptor Pounce-Gear | Super Sticky Paw-Gloves | Right-pawed | Orange Patchwork | Crinkly Paper Bags |
| Simba | Tricera-Couch Rider | Yarn Ball Smoke Bomb | Left-pawed | Calico Fur | Shiny Red Dot |
| Nala | Ptera-Purr Glider | Super Sticky Paw-Gloves | Right-pawed | Orange Patchwork | Shiny Red Dot |
| Mittens | Stego-Tail Armor | Catnip Laser Pointer | Right-pawed | Tabby Stripes | Crinkly Paper Bags |
| Hobbes | T-Rex Meow-Suit | Yarn Ball Smoke Bomb | Right-pawed | Orange Patchwork | Shiny Red Dot |
| Tigger | Raptor Pounce-Gear | Catnip Laser Pointer | Left-pawed | Tabby Stripes | Shiny Red Dot |
| Toulouse | Stego-Tail Armor | Catnip Laser Pointer | Left-pawed | Calico Fur | Crinkly Paper Bags |
| Socks | Stego-Tail Armor | Fish-Bone Grappling Hook | Left-pawed | Orange Patchwork | Shiny Red Dot |
| Tom | Ptera-Purr Glider | Super Sticky Paw-Gloves | Left-pawed | Orange Patchwork | Shiny Red Dot |
| Marie | Raptor Pounce-Gear | Yarn Ball Smoke Bomb | Left-pawed | Orange Patchwork | Shiny Red Dot |
| Duchess | Ptera-Purr Glider | Super Sticky Paw-Gloves | Right-pawed | Calico Fur | Warm Sunny Spots |
| Sylvester | Ptera-Purr Glider | Yarn Ball Smoke Bomb | Left-pawed | Tabby Stripes | Shiny Red Dot |
| Boots | Tricera-Couch Rider | Fish-Bone Grappling Hook | Left-pawed | Orange Patchwork | Crinkly Paper Bags |
| Dino | T-Rex Meow-Suit | Super Sticky Paw-Gloves | Left-pawed | Orange Patchwork | Shiny Red Dot |
| Pawla | Stego-Tail Armor | Super Sticky Paw-Gloves | Left-pawed | Orange Patchwork | Shiny Red Dot |
| Whiskers | Tricera-Couch Rider | Yarn Ball Smoke Bomb | Right-pawed | Tabby Stripes | Shiny Red Dot |
| Barnaby | T-Rex Meow-Suit | Super Sticky Paw-Gloves | Left-pawed | Orange Patchwork | Warm Sunny Spots |
| Rex | Ptera-Purr Glider | Super Sticky Paw-Gloves | Left-pawed | Calico Fur | Warm Sunny Spots |
| Felix | T-Rex Meow-Suit | Squeaky Mouse Drone | Right-pawed | Orange Patchwork | Crinkly Paper Bags |
Clue 1
Rounding
The park radar scanned the suspect escaping, but the screen only shows rounded numbers. Round the distance to find 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.
T
50
500
3000
T
50
500
40
3000
8000
400
90
3000
700
80
90
T
50
6000
700
3000
T
50
500
3000
8000
40
700
500
600
90
80
3000
500
90
90
4000
Round 48 to the nearest tenT
Round 3,345 to the nearest thousandE
Round 6,467 to the nearest thousandU
Round 8,315 to the nearest thousandF
Round 89 to the nearest tenO
Round 444 to the nearest hundredD
Round 739 to the nearest hundredS
Round 3,722 to the nearest thousandK
Round 44 to the nearest tenI
Round 501 to the nearest hundredH
Round 600 to the nearest hundredB
Round 78 to the nearest tenN
0/12 letters found
Clue 2
Addition
We found two torn scraps of the suspect's journal. Put the page numbers together to see what they say!
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
714
570
370
T
714
570
395
370
781
367
370
535
584
370
693
367
370
781
T
714
604
535
404
604
987
395
491
T
714
693
412 + 302 =T
206 + 364 =H
446 + 335 =F
245 + 246 =N
534 + 453 =R
313 + 222 =A
459 + 234 =S
170 + 197 =L
164 + 240 =W
223 + 381 =P
397 + 187 =V
260 + 135 =I
164 + 206 =E
0/13 letters found
Clue 3
Subtraction
The thief snatched some dino-chow from the storage bin. Count how much is missing to reveal the next hint.
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
784
161
587
343
642
833
833
117
642
731
809
161
117
122
587
122
T
784
161
587
122
161
642
731
808
527
587
133
133
301
T
784
1106 - 322 =T
396 - 53 =V
1233 - 400 =L
781 - 50 =N
773 - 131 =I
362 - 245 =A
292 - 170 =S
625 - 324 =O
997 - 189 =Y
1059 - 250 =C
302 - 169 =D
190 - 29 =H
609 - 22 =E
547 - 20 =R
0/14 letters found
Clue 4
Multiplication facts (1-12)
The suspect fled past rows of giant fossil crates. Count the total crates in this grid to uncover the trail!
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
108
99
9
30
16
132
5
132
84
33
32
110
16
11
6
6
9
110
11
16
33
84
28
9
4
60
16
12 × 9 =T
4 × 8 =L
5 × 1 =M
1 × 4 =F
3 × 11 =A
6 × 10 =U
10 × 3 =C
9 × 1 =E
11 × 9 =H
10 × 11 =D
2 × 8 =R
1 × 11 =O
7 × 12 =N
12 × 11 =I
6 × 1 =P
7 × 4 =G
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
A pack of tiny raptors found some clues but they will only trade if we share our treats equally among them. Divide the treats!
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
36 ÷ 3 = ?
24 ÷ 3 = ?
8 ÷ 8 = ?
6 ÷ 1 = ?
30 ÷ 3 = ?
33 ÷ 3 = ?
108 ÷ 12 = ?
55 ÷ 11 = ?
84 ÷ 12 = ?
32 ÷ 8 = ?
36 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain stomped through the mud in a giant T-Rex suit, then climbed the walls with sticky paw-gloves.
2.The villain pounced over the fence using raptor claws, then tossed a yarn ball smoke bomb to escape.
3.The villain rode a heavy Tricera-couch through the gate, then zipped away using a fish-bone grappling hook.
4.The villain swung a spiky stego-tail to smash the glass case, then tossed a yarn ball smoke bomb to escape.
5.The villain stomped through the mud in a giant T-Rex suit, then tossed a yarn ball smoke bomb to escape.
6.The villain stomped through the mud in a giant T-Rex suit, then sent a squeaky mouse drone to map the exit.
7.The villain stomped through the mud in a giant T-Rex suit, then shined a catnip laser pointer to distract the guards.
8.The villain glided down from the canopy on ptera-purr wings, then climbed the walls with sticky paw-gloves.
9.The villain pounced over the fence using raptor claws, then climbed the walls with sticky paw-gloves.
10.The villain stomped through the mud in a giant T-Rex suit, then zipped away using a fish-bone grappling hook.
11.The villain pounced over the fence using raptor claws, then shined a catnip laser pointer to distract the guards.
12.The villain swung a spiky stego-tail to smash the glass case, then climbed the walls with sticky paw-gloves.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Catnip Fossil Heist
Culprit: Marie (Raptor Pounce-Gear · Yarn Ball Smoke Bomb · Left-pawed · Orange Patchwork · Shiny Red Dot)
- Clue 1 (Rounding): "THE THIEF DOES NOT USE THE FISH BONE HOOK"Round 48 to the nearest ten = 50 (T) · Round 3,345 to the nearest thousand = 3000 (E) · Round 6,467 to the nearest thousand = 6000 (U) · Round 8,315 to the nearest thousand = 8000 (F) · Round 89 to the nearest ten = 90 (O) · Round 444 to the nearest hundred = 400 (D) · Round 739 to the nearest hundred = 700 (S) · Round 3,722 to the nearest thousand = 4000 (K) · Round 44 to the nearest ten = 40 (I) · Round 501 to the nearest hundred = 500 (H) · Round 600 to the nearest hundred = 600 (B) · Round 78 to the nearest ten = 80 (N)
- Clue 2 (Addition): "THE THIEF LEAVES LEFT PAW PRINTS"412 + 302 = 714 (T) · 206 + 364 = 570 (H) · 446 + 335 = 781 (F) · 245 + 246 = 491 (N) · 534 + 453 = 987 (R) · 313 + 222 = 535 (A) · 459 + 234 = 693 (S) · 170 + 197 = 367 (L) · 164 + 240 = 404 (W) · 223 + 381 = 604 (P) · 397 + 187 = 584 (V) · 260 + 135 = 395 (I) · 164 + 206 = 370 (E)
- Clue 3 (Subtraction): "THE VILLAIN CHASES THE SHINY RED DOT"1106 - 322 = 784 (T) · 396 - 53 = 343 (V) · 1233 - 400 = 833 (L) · 781 - 50 = 731 (N) · 773 - 131 = 642 (I) · 362 - 245 = 117 (A) · 292 - 170 = 122 (S) · 625 - 324 = 301 (O) · 997 - 189 = 808 (Y) · 1059 - 250 = 809 (C) · 302 - 169 = 133 (D) · 190 - 29 = 161 (H) · 609 - 22 = 587 (E) · 547 - 20 = 527 (R)
- Clue 4 (Multiplication facts (1-12)): "THE CRIMINAL DROPPED ORANGE FUR"12 × 9 = 108 (T) · 4 × 8 = 32 (L) · 5 × 1 = 5 (M) · 1 × 4 = 4 (F) · 3 × 11 = 33 (A) · 6 × 10 = 60 (U) · 10 × 3 = 30 (C) · 9 × 1 = 9 (E) · 11 × 9 = 99 (H) · 10 × 11 = 110 (D) · 2 × 8 = 16 (R) · 1 × 11 = 11 (O) · 7 × 12 = 84 (N) · 12 × 11 = 132 (I) · 6 × 1 = 6 (P) · 7 × 4 = 28 (G)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Marie36 ÷ 3 = 12 · 24 ÷ 3 = 8 · 8 ÷ 8 = 1 · 6 ÷ 1 = 6 · 30 ÷ 3 = 10 · 33 ÷ 3 = 11 · 108 ÷ 12 = 9 · 55 ÷ 11 = 5 · 84 ÷ 12 = 7 · 32 ÷ 8 = 4 · 36 ÷ 12 = 3
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Great Catnip Fossil Heist — set in The Purr-historic Dino-Cat Park
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects