Math Mysteries
🐱 CatsGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Great Catnip Cup Caper

Oh no! Someone swiped the Golden Catnip Trophy from the academy trophy case! The floor is covered in dusty paw prints. We need to find which student or teacher at Whisker Hills is the sneaky cat bandit before the grand graduation ceremony tonight!

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameSpecial ToyFavorite TreatCollar ColorFur PatternDistraction
Milocardboard boxcat grassred collarsolid fursqueaky toy
Cleocatnip mousemilk dropsblue collarsolid furbelly rubs
Simbalaser pointercat grassred collarspotted furbelly rubs
Garfieldfeather wandtuna treatsblue collarstriped furbelly rubs
Tiggercardboard boxsalmon bitesred collarspotted furcrinkly paper
Jasperfeather wandcat grassblue collarsolid furbelly rubs
Pippincatnip mousesalmon bitesblue collarstriped fursqueaky toy
Oliverfeather wandcat grassred collarsolid furcrinkly paper
Sockslaser pointertuna treatsred collarstriped fursqueaky toy
Shadowcatnip mousetuna treatsblue collarstriped furcrinkly paper
Sylvesterfeather wandmilk dropsred collarspotted furcrinkly paper
Mittensfeather wandchicken bitsred collarspotted furcrinkly paper
Chloecardboard boxchicken bitsblue collarstriped furcrinkly paper
Lunalaser pointertuna treatsred collarspotted furcrinkly paper
Felixlaser pointertuna treatsred collarsolid furbelly rubs
Patchescatnip mousechicken bitsblue collarspotted furbelly rubs
Smokeyfeather wandsalmon bitesblue collarspotted furbelly rubs
Bootslaser pointercat grassred collarspotted furcrinkly paper
Gingerlaser pointertuna treatsred collarspotted furbelly rubs
Peachescardboard boxsalmon bitesred collarstriped furbelly rubs
Bellayarn balltuna treatsblue collarspotted furcrinkly paper
Clue 1

Rounding

The security radar has fuzzy numbers. Round the distance of the cat steps to the nearest ten to clear up the screen!

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
4000
600
80
900
70
700
90
2000
T
4000
90
800
80
30
700
800
T
4000
3000
2000
500
80
400
2000
3000
500
90
60
800
8000
30
Round 3,906 to the nearest thousandT
Round 2,693 to the nearest thousandL
Round 619 to the nearest hundredH
Round 7,658 to the nearest thousandP
Round 839 to the nearest hundredO
Round 64 to the nearest tenR
Round 33 to the nearest tenS
Round 506 to the nearest hundredK
Round 73 to the nearest tenA
Round 90 to the nearest tenD
Round 1,850 to the nearest thousandI
Round 391 to the nearest hundredM
Round 888 to the nearest hundredB
Round 82 to the nearest tenE
Round 655 to the nearest hundredN
0/15 letters found
Clue 2

Addition

To unlock the pantry door, we must count all the fish biscuits we found and add them together.

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
984
326
896
740
316
896
405
926
787
280
405
T
984
842
896
405
763
740
405
763
896
743
280
484
489
489
405
763
474 + 510 =T
541 + 301 =W
327 + 157 =O
107 + 173 =C
367 + 373 =S
146 + 170 =N
346 + 550 =E
289 + 498 =Y
482 + 261 =D
266 + 497 =R
180 + 225 =A
270 + 219 =L
193 + 133 =H
403 + 523 =K
0/14 letters found
Clue 3

Subtraction

The guard dropped some toy mice. Find how many are missing by subtracting the leftover toys.

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
321
165
792
604
162
T
321
897
699
564
564
322
T
321
295
589
309
295
438
604
438
699
880
286
564
883
589
162
589
792
438
631 - 310 =T
829 - 391 =R
1267 - 387 =N
883 - 279 =C
1288 - 391 =W
992 - 200 =E
433 - 111 =S
725 - 136 =P
491 - 196 =O
878 - 179 =I
1134 - 251 =Y
466 - 301 =H
402 - 116 =K
611 - 302 =F
601 - 37 =L
175 - 13 =A
0/16 letters found
Clue 4

Multiplication facts (1-12)

The suspect ran across several rows of yarn baskets. Multiply the rows by the baskets to find the total.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

W
45
12
54
121
33
81
64
42
27
121
16
16
12
64
54
33
60
32
16
16
7
12
42
99
12
81
12
5 × 9 =W
7 × 6 =S
11 × 9 =C
1 × 7 =H
9 × 3 =P
2 × 6 =E
6 × 9 =F
11 × 3 =U
10 × 6 =R
11 × 11 =O
9 × 9 =N
4 × 4 =T
8 × 4 =A
8 × 8 =D
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

We have to share these yummy cat treats equally among our team of detectives to solve the final clue.

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
49 ÷ 7 = ?
81 ÷ 9 = ?
6 ÷ 3 = ?
44 ÷ 4 = ?
24 ÷ 3 = ?
72 ÷ 12 = ?
60 ÷ 5 = ?
40 ÷ 8 = ?
8 ÷ 2 = ?
10 ÷ 10 = ?
10 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain tossed a smelly catnip mouse into the hallway, then dropped a trail of salmon bites behind them.
2.The villain waved a giant feather wand to clear the path, then gobbled down dried chicken bits on the way out.
3.The villain shined a bright laser pointer to distract the guard, then nibbled some fresh cat grass to calm their nerves.
4.The villain hid inside a giant cardboard box to slip past, then gobbled down dried chicken bits on the way out.
5.The villain waved a giant feather wand to clear the path, then splashed sweet milk drops all over the floor.
6.The villain rolled a heavy yarn ball down the stairs, then nibbled some fresh cat grass to calm their nerves.
7.The villain hid inside a giant cardboard box to slip past, then dropped a trail of salmon bites behind them.
8.The villain waved a giant feather wand to clear the path, then dropped a trail of salmon bites behind them.
9.The villain shined a bright laser pointer to distract the guard, then snacked on tasty tuna treats during the escape.
10.The villain hid inside a giant cardboard box to slip past, then snacked on tasty tuna treats during the escape.
11.The villain shined a bright laser pointer to distract the guard, then gobbled down dried chicken bits on the way out.
12.The villain shined a bright laser pointer to distract the guard, then splashed sweet milk drops all over the floor.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Rounding, Addition, Subtraction, Multiplication, Division
Reading level
grades 3-4
Theme
The Great Catnip Cup Caper — set in The Whisker Hills Kitty Academy
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

More free printable math mysteries

3rd grade worksheetsAddition worksheetsSubtraction worksheetsMultiplication worksheetsDivision worksheetsRounding worksheetsAll worksheets →
The Grand Catnip Museum Heist
Grade 3
The Mystery of the Sky Port Compass
Grade 3
The Dino Valley Egg Caper
Grade 3
The Case of the Missing Championship Trophy
Grade 3