Math Mysteries
🐱 CatsGrade 6Reading: grades 3-4Place valueMultiplicationAdditionSubtractionDivision

The Golden Tuna Heist

The golden can of premium tuna has been stolen from the safe at the Purrfect Tuna Fish Factory! Only a clever cat burglar could have pulled off this heist. Detective Kitten is on the case to find the culprit.

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 GadgetActive PawFur PatternDistraction
Simbahigh jumpingfish launcherleft pawedcalico patchcrumpled paper
Bellasilent creepingfish launcherleft pawedsleek blackcrumpled paper
Whiskerswall climbingcatnip mistright pawedsleek blackcrumpled paper
Tomhigh jumpinglaser pointerright pawedsleek blackcrumpled paper
Cookielaser dashingyarn grapplerleft pawedsleek blackcrumpled paper
Milosuper purringbell silencerleft pawedsleek blackwarm sunlight
Oliverwall climbingbell silencerright pawedorange tabbycrumpled paper
Sylvestersilent creepingbell silencerleft pawedsleek blackcrumpled paper
Smokeysilent creepingcatnip mistleft pawedorange tabbycrumpled paper
Ziggywall climbinglaser pointerleft pawedsleek blacksqueaky mouse
Busterhigh jumpingfish launcherright pawedcalico patchcrumpled paper
Bootssilent creepingbell silencerright pawedsleek blacksqueaky mouse
Garfieldhigh jumpingfish launcherleft pawedorange tabbycrumpled paper
Felixsilent creepingbell silencerleft pawedcalico patchcrumpled paper
Shadowwall climbingfish launcherleft pawedsleek blacksqueaky mouse
Tigerhigh jumpinglaser pointerleft pawedsleek blackcrumpled paper
Chloesuper purringcatnip mistleft pawedcalico patchcrumpled paper
Lunasilent creepingcatnip mistleft pawedsleek blackcrumpled paper
Sockslaser dashingcatnip mistleft pawedcalico patchwarm sunlight
Gizmosuper purringyarn grapplerright pawedcalico patchsqueaky mouse
Nalalaser dashingyarn grapplerright pawedorange tabbycrumpled paper
Clue 1

Place value

The factory vault has a digital keypad. We examine the place value of the code digits to find the first 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
700
900
300
10
3000
60
60
5000
3000
20
100
200
300
600
20
200
T
700
6000
600
300
T
700
900
300
50
5000
40
20
8000
40
5000
7000
7000
60
300
40
What is the value of the 7 in 98,788?T
What is the value of the 7 in 637,081?P
What is the value of the 5 in 405,238?A
What is the value of the 4 in 86,849?R
What is the value of the 6 in 12,670?S
What is the value of the 6 in 916,242?U
What is the value of the 9 in 22,944?H
What is the value of the 3 in 772,397?E
What is the value of the 2 in 560,210?O
What is the value of the 1 in 39,719?V
What is the value of the 2 in 90,026?N
What is the value of the 5 in 791,853?Y
What is the value of the 3 in 253,580?I
What is the value of the 6 in 57,465?L
What is the value of the 1 in 923,179?D
What is the value of the 8 in 628,353?G
0/16 letters found
Clue 2

Multiplication facts (1-12)

We find stacks of fish crate boxes organized in rows. Multiplying the rows gives us a clue about the thief.

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
50
70
35
45
120
40
21
9
10
T
50
48
36
10
21
35
48
36
10
T
50
70
T
50
70
35
40
35
11
T
50
21
132
36
10 × 5 =T
3 × 12 =W
6 × 8 =S
5 × 9 =C
10 × 4 =L
3 × 7 =P
10 × 7 =H
5 × 2 =I
10 × 12 =U
11 × 1 =F
1 × 9 =R
5 × 7 =E
11 × 12 =A
0/13 letters found
Clue 3

Addition

We count the spilled toy mice on the floor. Adding them all up reveals another piece of evidence.

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
5403
5979
6071
8169
8535
4706
4706
5149
8535
3357
5345
5149
3357
3357
2510
T
5403
3152
6071
4351
8535
4351
T
5403
5345
3152
9833
6480
5430
4706
6071
4324
5430
5149
5430
6071
3152
3596 + 1807 =T
1745 + 1407 =R
2791 + 1560 =S
4823 + 5010 =U
1780 + 1577 =N
2313 + 3666 =H
3697 + 4838 =I
1640 + 3066 =L
2102 + 3047 =A
2136 + 2188 =D
4089 + 1982 =E
2159 + 3186 =C
1499 + 1011 =O
3297 + 3183 =M
2423 + 3007 =P
4776 + 3393 =V
0/16 letters found
Clue 4

Subtraction

The thief took some catnip bags from the shelf. Subtracting the missing bags from the total shows us a new 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.

L
4947
1555
1555
2246
1526
2246
L
4947
1526
1526
8536
2805
L
4947
5480
4191
8536
6241
5502
4641
5148
5480
2246
L
4947
1526
6241
5013
2805
1526
3783
7802
2740
5459
8387 - 3440 =L
10712 - 4471 =F
6320 - 3580 =N
3182 - 1627 =O
4459 - 2213 =S
7156 - 2008 =W
3466 - 1940 =E
8436 - 2934 =U
6370 - 3565 =B
9940 - 2138 =I
6930 - 2739 =C
6767 - 2984 =H
10181 - 1645 =K
6703 - 1223 =A
9045 - 3586 =D
7374 - 2733 =R
6850 - 1837 =T
0/17 letters found
Clue 5

Division facts (1-12) — the last clue

We divide a pile of golden fish biscuits equally among the witness kittens to hear their 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
55 ÷ 11 = ?
36 ÷ 9 = ?
12 ÷ 4 = ?
24 ÷ 2 = ?
8 ÷ 1 = ?
60 ÷ 6 = ?
77 ÷ 7 = ?
4 ÷ 2 = ?
99 ÷ 11 = ?
6 ÷ 6 = ?
66 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain climbs up the brick wall, then sprays a cloud of catnip mist.
2.The villain dashes through the laser grid, then escapes using a yarn grappler.
3.The villain jumps over the high fence, then shines a distracting laser pointer.
4.The villain creeps past the sleeping guard dog, then quiets their collar with a bell silencer.
5.The villain creeps past the sleeping guard dog, then creates a distraction with a fish launcher.
6.The villain jumps over the high fence, then sprays a cloud of catnip mist.
7.The villain creeps past the sleeping guard dog, then sprays a cloud of catnip mist.
8.The villain purrs to disable the alarm, then quiets their collar with a bell silencer.
9.The villain dashes through the laser grid, then sprays a cloud of catnip mist.
10.The villain purrs to disable the alarm, then shines a distracting laser pointer.
11.The villain dashes through the laser grid, then creates a distraction with a fish launcher.
12.The villain jumps over the high fence, then creates a distraction with a fish launcher.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 6 math
Math topics
Place value, Multiplication, Addition, Subtraction, Division
Reading level
grades 3-4
Theme
The Golden Tuna Heist — set in The Purrfect Tuna Fish Factory
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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