🐱 CatsGrade 3Reading: grades 3-4AdditionSubtractionMultiplicationRoundingDivision
The Case of the Missing Golden Mouse
Someone snuck into Whisker Villa and swapped the famous Golden Mouse Statue with a painted ball of yarn! Detective Pawlock needs your help to examine the evidence and catch the sneaky cat.
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 | Main Trick | Gadget | Whiskers | Fur Color | Distraction |
|---|---|---|---|---|---|
| Oreo | Night Vision | Yarn Launcher | Twitching Right Whiskers | Midnight Black Fur | Cardboard Box |
| Simba | Wall Climb | Squeaky Toy | Twitching Right Whiskers | Calico Fur | Warm Sunbeam |
| Garfield | High Pounce | Laser Pointer | Twitching Left Whiskers | Orange Tabby Fur | Cardboard Box |
| Smokey | Silent Tread | Yarn Launcher | Twitching Right Whiskers | Midnight Black Fur | Warm Sunbeam |
| Mittens | Wall Climb | Squeaky Toy | Twitching Left Whiskers | Midnight Black Fur | Cardboard Box |
| Whiskers | Silent Tread | Catnip Bomb | Twitching Left Whiskers | Midnight Black Fur | Cardboard Box |
| Loki | Wall Climb | Feather Wand | Twitching Right Whiskers | Midnight Black Fur | Bowl of Milk |
| Cleo | Night Vision | Laser Pointer | Twitching Right Whiskers | Midnight Black Fur | Cardboard Box |
| Ziggy | Night Vision | Catnip Bomb | Twitching Left Whiskers | Calico Fur | Cardboard Box |
| Socks | Super Purr | Laser Pointer | Twitching Left Whiskers | Orange Tabby Fur | Warm Sunbeam |
| Sylvester | Wall Climb | Squeaky Toy | Twitching Left Whiskers | Calico Fur | Warm Sunbeam |
| Nala | High Pounce | Feather Wand | Twitching Right Whiskers | Midnight Black Fur | Warm Sunbeam |
| Mochi | Night Vision | Feather Wand | Twitching Left Whiskers | Orange Tabby Fur | Warm Sunbeam |
| Peanut | High Pounce | Feather Wand | Twitching Left Whiskers | Orange Tabby Fur | Warm Sunbeam |
| Jasper | High Pounce | Laser Pointer | Twitching Right Whiskers | Midnight Black Fur | Warm Sunbeam |
| Milo | High Pounce | Squeaky Toy | Twitching Right Whiskers | Midnight Black Fur | Warm Sunbeam |
| Oliver | Night Vision | Laser Pointer | Twitching Left Whiskers | Calico Fur | Warm Sunbeam |
| Tom | Night Vision | Yarn Launcher | Twitching Left Whiskers | Midnight Black Fur | Warm Sunbeam |
| Daisy | Night Vision | Squeaky Toy | Twitching Right Whiskers | Orange Tabby Fur | Warm Sunbeam |
| Luna | Wall Climb | Squeaky Toy | Twitching Right Whiskers | Midnight Black Fur | Warm Sunbeam |
| Shadow | Super Purr | Laser Pointer | Twitching Left Whiskers | Calico Fur | Warm Sunbeam |
Clue 1
Addition
Pawlock added up all the muddy pawprints left near the display case.
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
789
854
417
415
312
417
758
955
429
757
924
478
329
916
758
478
947
266
947
312
422
T
789
924
415
417
758
974
417
758
T
789
854
417
478
464
758
312
947
288 + 501 =T
516 + 242 =A
475 + 449 =U
395 + 521 =L
198 + 231 =Y
199 + 218 =E
239 + 176 =S
175 + 303 =R
181 + 283 =W
499 + 448 =D
316 + 639 =K
281 + 476 =B
315 + 659 =F
197 + 225 =O
127 + 202 =G
510 + 344 =H
183 + 129 =N
121 + 145 =I
0/18 letters found
Clue 2
Subtraction
Pawlock subtracted the eaten treats from the jar to find a hidden 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
870
418
895
395
576
395
671
895
713
T
870
T
870
629
206
T
870
713
418
895
450
T
870
418
895
206
136
136
206
338
418
T
870
629
418
206
395
387
895
136
395
1013 - 143 =T
915 - 244 =P
1294 - 399 =E
483 - 277 =I
1022 - 309 =C
859 - 283 =U
657 - 239 =H
454 - 116 =G
669 - 274 =S
347 - 211 =R
663 - 34 =W
602 - 215 =K
822 - 372 =D
0/13 letters found
Clue 3
Multiplication facts (1-12)
Pawlock counted equal rows of cat food tins stacked in the pantry.
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
18
2
108
35
4
121
33
35
48
33
20
T
30
35
33
8
8
18
100
2
88
33
48
33
35
25
20
108
15
2
18
33
25
6 × 5 =T
3 × 5 =N
5 × 5 =M
11 × 3 =A
12 × 4 =W
7 × 5 =R
11 × 11 =L
2 × 2 =G
9 × 10 =H
10 × 10 =D
2 × 4 =P
2 × 10 =S
9 × 2 =E
2 × 1 =B
9 × 12 =U
8 × 11 =Y
0/16 letters found
Clue 4
Rounding
Pawlock checked a digital scale that rounded the weight of the fake statue.
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
90
50
2000
200
600
8000
300
30
2000
40
600
500
60
3000
400
300
3000
60
300
700
50
T
90
4000
8000
9000
30
80
40
500
800
9000
T
90
6000
30
2000
60
2000
Round 88 to the nearest tenT
Round 226 to the nearest hundredP
Round 387 to the nearest hundredM
Round 716 to the nearest hundredG
Round 44 to the nearest tenF
Round 594 to the nearest hundredO
Round 2,029 to the nearest thousandE
Round 521 to the nearest hundredU
Round 8,162 to the nearest thousandL
Round 3,619 to the nearest thousandB
Round 831 to the nearest hundredR
Round 33 to the nearest tenC
Round 60 to the nearest tenN
Round 6,027 to the nearest thousandS
Round 260 to the nearest hundredI
Round 48 to the nearest tenH
Round 3,481 to the nearest thousandD
Round 84 to the nearest tenK
Round 8,791 to the nearest thousandA
0/19 letters found
Clue 5
Division facts (1-12) — the last clue
Pawlock split the remaining treats equally among the helpful alley cats.
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
144 ÷ 12 = ?
27 ÷ 3 = ?
77 ÷ 11 = ?
54 ÷ 9 = ?
40 ÷ 5 = ?
3 ÷ 1 = ?
12 ÷ 12 = ?
70 ÷ 7 = ?
132 ÷ 12 = ?
8 ÷ 2 = ?
16 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain navigated in total darkness, then fired a yarn launcher.
2.The villain pounced from high above, then swung a feather wand.
3.The villain pounced from high above, then dropped a catnip bomb.
4.The villain tiptoed across the room, then flashed a laser pointer.
5.The villain tiptoed across the room, then fired a yarn launcher.
6.The villain navigated in total darkness, then dropped a catnip bomb.
7.The villain pounced from high above, then flashed a laser pointer.
8.The villain scaled the tall drapes, then fired a yarn launcher.
9.The villain pounced from high above, then squeaked a toy loudly.
10.The villain navigated in total darkness, then flashed a laser pointer.
11.The villain tiptoed across the room, then squeaked a toy loudly.
12.The villain scaled the tall drapes, then squeaked a toy loudly.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Golden Mouse
Culprit: Smokey (Silent Tread · Yarn Launcher · Twitching Right Whiskers · Midnight Black Fur · Warm Sunbeam)
- Clue 1 (Addition): "THE SNEAKY BURGLAR DID NOT USE A FEATHER WAND"288 + 501 = 789 (T) · 516 + 242 = 758 (A) · 475 + 449 = 924 (U) · 395 + 521 = 916 (L) · 198 + 231 = 429 (Y) · 199 + 218 = 417 (E) · 239 + 176 = 415 (S) · 175 + 303 = 478 (R) · 181 + 283 = 464 (W) · 499 + 448 = 947 (D) · 316 + 639 = 955 (K) · 281 + 476 = 757 (B) · 315 + 659 = 974 (F) · 197 + 225 = 422 (O) · 127 + 202 = 329 (G) · 510 + 344 = 854 (H) · 183 + 129 = 312 (N) · 121 + 145 = 266 (I)
- Clue 2 (Subtraction): "THE SUSPECT TWITCHED THEIR RIGHT WHISKERS"1013 - 143 = 870 (T) · 915 - 244 = 671 (P) · 1294 - 399 = 895 (E) · 483 - 277 = 206 (I) · 1022 - 309 = 713 (C) · 859 - 283 = 576 (U) · 657 - 239 = 418 (H) · 454 - 116 = 338 (G) · 669 - 274 = 395 (S) · 347 - 211 = 136 (R) · 663 - 34 = 629 (W) · 602 - 215 = 387 (K) · 822 - 372 = 450 (D)
- Clue 3 (Multiplication facts (1-12)): "THE BURGLAR WAS TRAPPED BY A WARM SUNBEAM"6 × 5 = 30 (T) · 3 × 5 = 15 (N) · 5 × 5 = 25 (M) · 11 × 3 = 33 (A) · 12 × 4 = 48 (W) · 7 × 5 = 35 (R) · 11 × 11 = 121 (L) · 2 × 2 = 4 (G) · 9 × 10 = 90 (H) · 10 × 10 = 100 (D) · 2 × 4 = 8 (P) · 2 × 10 = 20 (S) · 9 × 2 = 18 (E) · 2 × 1 = 2 (B) · 9 × 12 = 108 (U) · 8 × 11 = 88 (Y)
- Clue 4 (Rounding): "THE POLICE FOUND MIDNIGHT BLACK FUR AT SCENE"Round 88 to the nearest ten = 90 (T) · Round 226 to the nearest hundred = 200 (P) · Round 387 to the nearest hundred = 400 (M) · Round 716 to the nearest hundred = 700 (G) · Round 44 to the nearest ten = 40 (F) · Round 594 to the nearest hundred = 600 (O) · Round 2,029 to the nearest thousand = 2000 (E) · Round 521 to the nearest hundred = 500 (U) · Round 8,162 to the nearest thousand = 8000 (L) · Round 3,619 to the nearest thousand = 4000 (B) · Round 831 to the nearest hundred = 800 (R) · Round 33 to the nearest ten = 30 (C) · Round 60 to the nearest ten = 60 (N) · Round 6,027 to the nearest thousand = 6000 (S) · Round 260 to the nearest hundred = 300 (I) · Round 48 to the nearest ten = 50 (H) · Round 3,481 to the nearest thousand = 3000 (D) · Round 84 to the nearest ten = 80 (K) · Round 8,791 to the nearest thousand = 9000 (A)
- Clue 5 (Division facts (1-12)): surviving statement (box 5) → Smokey144 ÷ 12 = 12 · 27 ÷ 3 = 9 · 77 ÷ 11 = 7 · 54 ÷ 9 = 6 · 40 ÷ 5 = 8 · 3 ÷ 1 = 3 · 12 ÷ 12 = 1 · 70 ÷ 7 = 10 · 132 ÷ 12 = 11 · 8 ÷ 2 = 4 · 16 ÷ 8 = 2
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Addition, Subtraction, Multiplication, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Golden Mouse — set in Whisker Villa Cat Shelter
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects