🐱 CatsGrade 3Reading: grades 3-4Place valueRoundingAdditionSubtractionDivision
The Grand Catnip Museum Heist
The priceless Golden Ball of Yarn has been stolen right out of its glass display case! The clever culprit escaped into the night, leaving behind paw prints, stray fur, and a trail of puzzling math clues.
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 | Special Skill | Secret Trick | Dominant Paw | Fur Pattern | Biggest Fear |
|---|---|---|---|---|---|
| Tom | High Jump | Cardboard Box Camouflage | Right-pawed | Sleek Black Coat | Squeaky Toy Noise |
| Socks | Night Vision | Catnip Immunity | Right-pawed | Tabby Stripes | Squeaky Toy Noise |
| Luna | High Jump | Fish Breath Attack | Right-pawed | Tabby Stripes | Vacuum Cleaner Sound |
| Pumpkin | Silent Paws | Laser Chase Mastery | Left-pawed | Calico Fur | Squeaky Toy Noise |
| Ziggy | Mega Scratch | Catnip Immunity | Left-pawed | Tabby Stripes | Vacuum Cleaner Sound |
| Sylvester | High Jump | Cardboard Box Camouflage | Left-pawed | Calico Fur | Spray Water Bottle |
| Milo | Super Purr | Laser Chase Mastery | Left-pawed | Tabby Stripes | Squeaky Toy Noise |
| Cleo | Mega Scratch | Catnip Immunity | Right-pawed | Tabby Stripes | Squeaky Toy Noise |
| Lucky | High Jump | Cardboard Box Camouflage | Left-pawed | Sleek Black Coat | Spray Water Bottle |
| Gizmo | Night Vision | Cardboard Box Camouflage | Left-pawed | Tabby Stripes | Squeaky Toy Noise |
| Garfield | Mega Scratch | Fish Breath Attack | Left-pawed | Tabby Stripes | Squeaky Toy Noise |
| Nala | Super Purr | Yarn Untangling | Left-pawed | Tabby Stripes | Squeaky Toy Noise |
| Felix | High Jump | Cardboard Box Camouflage | Left-pawed | Tabby Stripes | Squeaky Toy Noise |
| Chloe | High Jump | Catnip Immunity | Right-pawed | Sleek Black Coat | Vacuum Cleaner Sound |
| Bella | Silent Paws | Fish Breath Attack | Left-pawed | Sleek Black Coat | Vacuum Cleaner Sound |
| Simba | Silent Paws | Laser Chase Mastery | Right-pawed | Tabby Stripes | Squeaky Toy Noise |
| Shadow | Night Vision | Laser Chase Mastery | Left-pawed | Tabby Stripes | Vacuum Cleaner Sound |
| Oliver | Night Vision | Catnip Immunity | Left-pawed | Calico Fur | Vacuum Cleaner Sound |
| Whiskers | Night Vision | Catnip Immunity | Right-pawed | Calico Fur | Vacuum Cleaner Sound |
| Mittens | Night Vision | Laser Chase Mastery | Left-pawed | Sleek Black Coat | Spray Water Bottle |
| Tigger | Silent Paws | Fish Breath Attack | Left-pawed | Calico Fur | Squeaky Toy Noise |
Clue 1
Place value
The museum security lock has a digital screen. To crack the first code, we must look closely at the digit in the tens place.
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
500
200
1000
50
600
9000
9000
3000
600
20
90
30
1000
60
20
30
T
500
10
60
1000
80
3000
40
20
10
20
T
500
3000
20
300
9000
600
20
300
What is the value of the 5 in 4,537?T
What is the value of the 9 in 9,541?L
What is the value of the 5 in 252?V
What is the value of the 1 in 3,517?U
What is the value of the 1 in 31,067?E
What is the value of the 3 in 43,174?A
What is the value of the 3 in 1,316?G
What is the value of the 2 in 255?H
What is the value of the 4 in 3,349?R
What is the value of the 9 in 493?D
What is the value of the 8 in 285?Y
What is the value of the 6 in 8,614?I
What is the value of the 2 in 6,326?N
What is the value of the 3 in 937?O
What is the value of the 6 in 763?S
0/15 letters found
Clue 2
Rounding
The thief left a note with a big number on it. A witness says we need to round it to the nearest hundred to find the secret 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.
T
30
90
700
3000
600
400
4000
60
T
30
80
500
60
2000
700
4000
500
60
T
30
90
T
30
90
700
200
700
300
T
30
2000
600
500
Round 28 to the nearest tenT
Round 661 to the nearest hundredE
Round 3,637 to the nearest thousandD
Round 618 to the nearest hundredA
Round 3,208 to the nearest thousandB
Round 78 to the nearest tenS
Round 60 to the nearest tenI
Round 297 to the nearest hundredF
Round 530 to the nearest hundredW
Round 93 to the nearest tenH
Round 1,635 to the nearest thousandP
Round 422 to the nearest hundredN
Round 228 to the nearest hundredL
0/13 letters found
Clue 3
Addition
Let us tally up the total number of catnip mice left behind in the exhibits to see how many rooms the bandit visited.
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
398
242
922
T
398
242
844
922
462
339
313
295
462
339
585
256
313
443
790
349
922
313
712
674
T
398
585
674
270 + 128 =T
270 + 574 =I
112 + 130 =H
306 + 616 =E
179 + 77 =M
166 + 277 =S
98 + 215 =A
120 + 219 =R
358 + 316 =Y
102 + 193 =N
279 + 306 =O
350 + 362 =K
286 + 176 =F
271 + 519 =Q
185 + 164 =U
0/15 letters found
Clue 4
Subtraction
The suspect knocked some fish treats out of a jar. If we subtract the remaining treats from the starting amount, we will get our 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
496
156
793
793
419
715
T
496
791
333
543
726
715
102
726
791
726
715
726
726
434
333
434
T
496
481
726
418
156
791
881
801 - 305 =T
670 - 189 =H
708 - 165 =P
1229 - 348 =K
461 - 128 =I
1061 - 335 =E
1191 - 400 =R
468 - 312 =A
507 - 73 =N
163 - 61 =W
1128 - 335 =B
577 - 159 =D
793 - 374 =Y
843 - 128 =S
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
We found a pile of tuna cans. If we share them equally among the three detective pups, we can figure out the final secret room.
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
44 ÷ 4 = ?
11 ÷ 11 = ?
33 ÷ 11 = ?
7 ÷ 1 = ?
70 ÷ 7 = ?
4 ÷ 1 = ?
120 ÷ 10 = ?
16 ÷ 2 = ?
15 ÷ 3 = ?
66 ÷ 11 = ?
6 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain swipes the golden mouse statue, then chases a stray dust bunny.
2.The villain climbs up the giant cat tree, then chases a stray dust bunny.
3.The villain sneaks through the window, then scampers under the rug.
4.The villain knocks over the fishbowl, then escapes across the rooftop.
5.The villain climbs up the giant cat tree, then naps in a sunbeam.
6.The villain climbs up the giant cat tree, then scampers under the rug.
7.The villain climbs up the giant cat tree, then hides inside a cardboard box.
8.The villain shreds the heavy curtains, then naps in a sunbeam.
9.The villain shreds the heavy curtains, then scampers under the rug.
10.The villain shreds the heavy curtains, then chases a stray dust bunny.
11.The villain knocks over the fishbowl, then hides inside a cardboard box.
12.The villain knocks over the fishbowl, then scampers under the rug.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Grand Catnip Museum Heist
Culprit: Gizmo (Night Vision · Cardboard Box Camouflage · Left-pawed · Tabby Stripes · Squeaky Toy Noise)
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE YARN UNTANGLING"What is the value of the 5 in 4,537? = 500 (T) · What is the value of the 9 in 9,541? = 9000 (L) · What is the value of the 5 in 252? = 50 (V) · What is the value of the 1 in 3,517? = 10 (U) · What is the value of the 1 in 31,067? = 1000 (E) · What is the value of the 3 in 43,174? = 3000 (A) · What is the value of the 3 in 1,316? = 300 (G) · What is the value of the 2 in 255? = 200 (H) · What is the value of the 4 in 3,349? = 40 (R) · What is the value of the 9 in 493? = 90 (D) · What is the value of the 8 in 285? = 80 (Y) · What is the value of the 6 in 8,614? = 600 (I) · What is the value of the 2 in 6,326? = 20 (N) · What is the value of the 3 in 937? = 30 (O) · What is the value of the 6 in 763? = 60 (S)
- Clue 2 (Rounding): "THE BANDIT SWIPED WITH THE LEFT PAW"Round 28 to the nearest ten = 30 (T) · Round 661 to the nearest hundred = 700 (E) · Round 3,637 to the nearest thousand = 4000 (D) · Round 618 to the nearest hundred = 600 (A) · Round 3,208 to the nearest thousand = 3000 (B) · Round 78 to the nearest ten = 80 (S) · Round 60 to the nearest ten = 60 (I) · Round 297 to the nearest hundred = 300 (F) · Round 530 to the nearest hundred = 500 (W) · Round 93 to the nearest ten = 90 (H) · Round 1,635 to the nearest thousand = 2000 (P) · Round 422 to the nearest hundred = 400 (N) · Round 228 to the nearest hundred = 200 (L)
- Clue 3 (Addition): "THE THIEF RAN FROM A SQUEAKY TOY"270 + 128 = 398 (T) · 270 + 574 = 844 (I) · 112 + 130 = 242 (H) · 306 + 616 = 922 (E) · 179 + 77 = 256 (M) · 166 + 277 = 443 (S) · 98 + 215 = 313 (A) · 120 + 219 = 339 (R) · 358 + 316 = 674 (Y) · 102 + 193 = 295 (N) · 279 + 306 = 585 (O) · 350 + 362 = 712 (K) · 286 + 176 = 462 (F) · 271 + 519 = 790 (Q) · 185 + 164 = 349 (U)
- Clue 4 (Subtraction): "TABBY STRIPES WERE SEEN IN THE DARK"801 - 305 = 496 (T) · 670 - 189 = 481 (H) · 708 - 165 = 543 (P) · 1229 - 348 = 881 (K) · 461 - 128 = 333 (I) · 1061 - 335 = 726 (E) · 1191 - 400 = 791 (R) · 468 - 312 = 156 (A) · 507 - 73 = 434 (N) · 163 - 61 = 102 (W) · 1128 - 335 = 793 (B) · 577 - 159 = 418 (D) · 793 - 374 = 419 (Y) · 843 - 128 = 715 (S)
- Clue 5 (Division facts (1-12)): surviving statement (box 9) → Gizmo44 ÷ 4 = 11 · 11 ÷ 11 = 1 · 33 ÷ 11 = 3 · 7 ÷ 1 = 7 · 70 ÷ 7 = 10 · 4 ÷ 1 = 4 · 120 ÷ 10 = 12 · 16 ÷ 2 = 8 · 15 ÷ 3 = 5 · 66 ÷ 11 = 6 · 6 ÷ 3 = 2
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Place value, Rounding, Addition, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Grand Catnip Museum Heist — set in The Grand Catnip Museum
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects