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

The Great Golden Tuna Caper

The Golden Tuna Trophy has been swiped from the trophy case at Whisker Academy! Headmaster Whiskers is in a tizzy. We must follow the clues to find the Claw Bandit before the graduation feast 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
NameSneaky PowerEscape GearWriting PawFur PatternSecret Distraction
Bustersuper leapbell collarleft-pawed writerorange tabby stripesshining laser pointer
Shadowsuper leapbell collarleft-pawed writermidnight black furshining laser pointer
Whiskerssonic meowyarn barrierleft-pawed writercalico patchesshining laser pointer
Tom Catshadow stealthclover charmleft-pawed writerorange tabby stripesshining laser pointer
Felixsonic meowclover charmright-pawed writerorange tabby stripestossing crinkle toy
Cleonight visionclover charmleft-pawed writermidnight black furshining laser pointer
Chloenight visioncatnap shieldright-pawed writermidnight black furshining laser pointer
Mittensshadow stealthyarn barrierleft-pawed writermidnight black furtossing crinkle toy
Nalasonar purringnip boosterright-pawed writermidnight black furshaking treat jar
Milonight visioncatnap shieldleft-pawed writercalico patchesshining laser pointer
Lunasonar purringcatnap shieldleft-pawed writerorange tabby stripesshining laser pointer
Simbasonar purringnip boosterright-pawed writerorange tabby stripesshaking treat jar
Sockssonic meowcatnap shieldleft-pawed writerorange tabby stripesshining laser pointer
Oliversonic meowyarn barrierleft-pawed writermidnight black furshaking treat jar
Lokinight visioncatnap shieldright-pawed writerorange tabby stripesshining laser pointer
Gizmosonic meowcatnap shieldleft-pawed writercalico patchesshining laser pointer
Sylvestersuper leapnip boosterleft-pawed writerorange tabby stripestossing crinkle toy
Smokeysuper leapcatnap shieldleft-pawed writerorange tabby stripesshaking treat jar
Angelshadow stealthnip boosterleft-pawed writerorange tabby stripesshining laser pointer
Garfieldnight visionnip boosterright-pawed writermidnight black furshining laser pointer
Fluffysonic meowclover charmright-pawed writercalico patchesshining laser pointer
Clue 1

Addition

We found piles of lost catnip mice near the gym. Let's add up all the toy piles we recovered to find the first big 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
2078
6377
5839
6003
7412
8697
8697
6675
7412
6799
8696
4836
5839
7550
6799
4836
T
2078
6733
7550
5839
T
2078
6377
5839
7968
5839
8697
8697
5575
4836
8697
8697
6675
6914
1423 + 655 =T
2158 + 2678 =O
3019 + 5678 =L
1876 + 3963 =E
1692 + 3883 =C
4616 + 2934 =S
2732 + 3271 =V
3896 + 2903 =N
2547 + 4367 =R
4361 + 3607 =B
3599 + 3076 =A
3717 + 2660 =H
3409 + 3324 =U
5023 + 2389 =I
2730 + 5966 =D
0/15 letters found
Clue 2

Rounding

The security camera screen is fuzzy and only displays rounded numbers of pawprints. Let's round the counts to get the camera working!

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
430
20
1300
170
130
170
1700
1300
4300
T
430
2300
1300
70
T
430
1700
200
500
1700
290
7000
1100
T
430
170
4300
290
200
T
430
4300
20
1300
170
700
1100
2300
1300
70
T
430
Round 428 to the nearest tenT
Round 67 to the nearest tenF
Round 126 to the nearest tenU
Round 4,285 to the nearest hundredC
Round 1,653 to the nearest hundredP
Round 166 to the nearest hundredA
Round 2,264 to the nearest hundredL
Round 1,268 to the nearest hundredE
Round 477 to the nearest hundredW
Round 170 to the nearest tenS
Round 1,072 to the nearest hundredN
Round 7,169 to the nearest thousandI
Round 291 to the nearest tenR
Round 743 to the nearest hundredO
Round 16 to the nearest tenH
0/15 letters found
Clue 3

Subtraction

The thief knocked over a jar of gourmet salmon treats. If we subtract the treats left on the floor from the total, we can decode this secret message!

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
5614
3879
5750
8147
5750
1761
1970
T
5614
1565
3879
1761
1970
5750
5820
1761
6457
4757
7677
3820
8357
8067
6457
1385
5750
5820
5820
7677
T
5614
5820
5750
T
5614
7677
2147
1385
9662 - 4048 =T
5712 - 3565 =U
3188 - 1218 =S
3434 - 1673 =A
5057 - 1237 =W
12704 - 4347 =I
3441 - 2056 =R
2104 - 539 =C
8447 - 3690 =L
12531 - 4384 =B
10717 - 4897 =D
9363 - 1296 =N
8041 - 364 =O
9740 - 3283 =G
10465 - 4715 =E
7911 - 4032 =H
0/16 letters found
Clue 4

Multiplication facts (1-12)

The culprit climbed up rows of scratching posts. Let's multiply the rows by the posts in each row to map their exact escape route!

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

O
60
7
66
15
25
54
1
120
7
36
70
7
99
6
54
36
36
15
66
25
25
54
110
O
60
15
70
33
54
7
120
25
5 × 12 =O
11 × 9 =I
5 × 3 =N
3 × 12 =S
12 × 10 =U
3 × 11 =H
11 × 6 =A
9 × 6 =E
3 × 2 =P
7 × 1 =R
1 × 1 =F
5 × 5 =G
10 × 7 =T
10 × 11 =D
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

We need to share these shiny bell toys equally among the search dogs. Dividing them up fairly will lead us to the final hideout!

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 ÷ 4 = ?
44 ÷ 4 = ?
48 ÷ 4 = ?
72 ÷ 9 = ?
8 ÷ 8 = ?
35 ÷ 5 = ?
12 ÷ 2 = ?
28 ÷ 7 = ?
110 ÷ 11 = ?
6 ÷ 2 = ?
16 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain navigated the dark halls, then blocked the door with a yarn barrier.
2.The villain leaped over the high fence, then tinkled softly with a bell collar.
3.The villain hummed a low sonar tune, then boosted away with catnip energy.
4.The villain hummed a low sonar tune, then blocked the door with a yarn barrier.
5.The villain slipped through the shadows, then escaped using a clover charm.
6.The villain navigated the dark halls, then hid behind a giant catnap shield.
7.The villain shattered the glass with a meow, then tinkled softly with a bell collar.
8.The villain navigated the dark halls, then boosted away with catnip energy.
9.The villain hummed a low sonar tune, then hid behind a giant catnap shield.
10.The villain shattered the glass with a meow, then boosted away with catnip energy.
11.The villain slipped through the shadows, then boosted away with catnip energy.
12.The villain shattered the glass with a meow, then hid behind a giant catnap shield.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

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

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