Math Mysteries
🐱 CatsGrade 5Reading: grades 5-6Fractions of a numberOrder of operationsMultiplicationRoundingDivision

The Case of the Golden Catnip Trophy

The Grand Meow-politan Museum has been raided! The legendary Golden Catnip Trophy has vanished from its velvet cushion, leaving behind a trail of dusty paw prints. Dr. Purrington, the museum curator, needs your help. The suspect is one of twenty-four famous felines attending the annual Fancy Cat Gala. You must analyze the evidence, solve the math puzzles, and catch the thief before they slip away into the night!

Suspects

Possible suspects

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

21 of 21 still in play
NameSuper SkillSecret GadgetDominant PawFur Coat StyleDistraction Weakness
BootsSuper High JumpNoodle Squeak ToyLeft PawedGinger Tabby StripesSqueaky Toy Sound
SylvesterSuper High JumpGlider Squirrel SuitRight PawedGinger Tabby StripesCrinkly Foil Ball
SimbaUltra Loud PurringCatnip Smoke BombRight PawedTuxedo Black and WhiteCrinkly Foil Ball
GizmoWall ClimbingCatnip Smoke BombLeft PawedTuxedo Black and WhiteSqueaky Toy Sound
OreoLaser Eye FocusGrappling Yarn HookLeft PawedGinger Tabby StripesBright Laser Dot
BarnabySilent ProwlingNoodle Squeak ToyLeft PawedTuxedo Black and WhiteSqueaky Toy Sound
WhiskersSilent ProwlingGlider Squirrel SuitLeft PawedTuxedo Black and WhiteSqueaky Toy Sound
OliverWall ClimbingMicro Laser PointerRight PawedCalico PatchesCrinkly Foil Ball
SocksWall ClimbingCatnip Smoke BombRight PawedTuxedo Black and WhiteCrinkly Foil Ball
PenelopeLaser Eye FocusGlider Squirrel SuitRight PawedTuxedo Black and WhiteBright Laser Dot
LunaWall ClimbingCatnip Smoke BombRight PawedTuxedo Black and WhiteSqueaky Toy Sound
FelixUltra Loud PurringGrappling Yarn HookRight PawedTuxedo Black and WhiteCrinkly Foil Ball
TomSuper High JumpNoodle Squeak ToyRight PawedCalico PatchesCrinkly Foil Ball
TiggerSilent ProwlingCatnip Smoke BombRight PawedTuxedo Black and WhiteCrinkly Foil Ball
RustyUltra Loud PurringGlider Squirrel SuitLeft PawedTuxedo Black and WhiteSqueaky Toy Sound
GarfieldSilent ProwlingCatnip Smoke BombLeft PawedTuxedo Black and WhiteCrinkly Foil Ball
MiloSilent ProwlingGrappling Yarn HookLeft PawedTuxedo Black and WhiteCrinkly Foil Ball
DuchessLaser Eye FocusMicro Laser PointerRight PawedCalico PatchesSqueaky Toy Sound
BellaLaser Eye FocusGlider Squirrel SuitRight PawedTuxedo Black and WhiteCrinkly Foil Ball
ChloeSuper High JumpGrappling Yarn HookRight PawedCalico PatchesCrinkly Foil Ball
MittensWall ClimbingGlider Squirrel SuitRight PawedCalico PatchesSqueaky Toy Sound
Clue 1

Fractions of a number

We found a torn blueprint of the museum's layout. Only a fraction of the rooms have security cameras, and the stolen map shows exactly how many are active. Let's calculate that fraction to uncover our first clue about the thief's gear!

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
26
36
22
9
11
9
34
22
29
T
26
5
10
22
9
18
10
T
26
11
9
22
16
9
39
11
14
33
33
22
21
9
11
14
T
26
4/10 of 65 =T
1/2 of 44 =E
2/4 of 58 =C
4/10 of 35 =I
2/3 of 15 =O
1/4 of 44 =U
3/6 of 36 =N
2/6 of 102 =P
2/8 of 84 =L
8/10 of 45 =H
5/8 of 8 =D
1/4 of 64 =A
6/10 of 15 =S
2/4 of 66 =R
1/3 of 117 =Q
0/15 letters found
Clue 2

Order of operations

To bypass the museum's digital security safe, the thief entered a scrambled mathematical code. By solving this order of operations puzzle, we can crack the code and discover how the culprit moved during the heist!

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
69
10
24
65
43
52
63
24
28
T
69
15
43
55
10
20
10
11
63
15
7
65
10
T
69
55
11
79
55
15
7
28
T
69
53
43
28
7
T
69
6 + 7 × 9 =T
11 × 7 - 12 =G
1 + 2 × 3 =I
11 × 2 - 7 =R
6 × 4 - 4 =Y
7 + 6 × 8 =P
9 × 6 - 1 =S
5 × 7 - 11 =E
16 + 7 × 9 =W
4 + 2 × 3 =H
5 × 7 - 24 =A
11 × 4 - 16 =N
7 × 12 - 21 =D
28 + 5 × 3 =O
27 + 5 × 5 =L
0/15 letters found
Clue 3

Multiplication facts (1-12)

The thief dropped a pack of luxury treats during the escape, arranged in neat rows. If we multiply the rows of treats, we can figure out the total weight and reveal a secret clue about the culprit's hair!

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

C
9
70
108
48
11
40
132
35
72
108
40
96
60
40
40
24
24
C
9
60
70
144
1
32
66
144
C
9
60
32
60
81
60
132
3 × 3 =C
11 × 12 =Y
5 × 8 =L
12 × 9 =I
8 × 9 =O
4 × 8 =T
7 × 5 =F
4 × 12 =N
8 × 12 =B
10 × 6 =A
9 × 9 =W
10 × 7 =R
12 × 12 =E
6 × 11 =H
1 × 1 =D
12 × 2 =S
11 × 1 =K
0/17 letters found
Clue 4

Rounding

The museum's motion sensors recorded the thief's speed, but the old digital screen only displays rounded numbers. Round the recorded speed to the nearest ten to unlock the data about their physical traits!

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

B
900
3000
1300
110
2000
1300
70
430
2900
4300
30
9000
170
230
290
130
2900
1300
50
3000
170
230
9000
1300
9000
9000
4300
170
50
110
170
70
170
Round 936 to the nearest hundredB
Round 34 to the nearest tenI
Round 4,272 to the nearest hundredH
Round 2,872 to the nearest hundredW
Round 229 to the nearest tenF
Round 107 to the nearest tenC
Round 9,388 to the nearest thousandT
Round 2,256 to the nearest thousandK
Round 434 to the nearest tenD
Round 1,284 to the nearest hundredA
Round 68 to the nearest tenN
Round 169 to the nearest tenE
Round 2,638 to the nearest thousandL
Round 46 to the nearest tenS
Round 292 to the nearest tenU
Round 126 to the nearest tenR
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

The museum guards are dividing up the leftover catnip treats to keep themselves awake for the night shift. Once we divide the treats equally, the remaining clue will reveal the villain's ultimate weakness!

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
56 ÷ 7 = ?
18 ÷ 3 = ?
88 ÷ 8 = ?
24 ÷ 8 = ?
4 ÷ 1 = ?
28 ÷ 4 = ?
18 ÷ 9 = ?
45 ÷ 5 = ?
108 ÷ 9 = ?
60 ÷ 6 = ?
12 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain leaped over the security beams, then glided down from the ceiling in a suit.
2.The villain leaped over the security beams, then used a micro laser to cut the glass.
3.The villain purred loudly to scramble the audio sensor, then used a micro laser to cut the glass.
4.The villain crept past the sleeping guard dog, then tossed a squeaky toy to distract the guard.
5.The villain climbed up the high museum walls, then dropped a catnip smoke bomb to escape.
6.The villain purred loudly to scramble the audio sensor, then swung away on a grappling yarn hook.
7.The villain focused on the security pad lock, then dropped a catnip smoke bomb to escape.
8.The villain crept past the sleeping guard dog, then dropped a catnip smoke bomb to escape.
9.The villain leaped over the security beams, then dropped a catnip smoke bomb to escape.
10.The villain crept past the sleeping guard dog, then used a micro laser to cut the glass.
11.The villain purred loudly to scramble the audio sensor, then dropped a catnip smoke bomb to escape.
12.The villain climbed up the high museum walls, then used a micro laser to cut the glass.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 5 math
Math topics
Fractions of a number, Order of operations, Multiplication, Rounding, Division
Reading level
grades 5-6
Theme
The Case of the Golden Catnip Trophy — set in The Grand Meow-politan Museum of Cat History
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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