🐱 CatsGrade 4Reading: grades 3-4AdditionMultiplicationRoundingSubtractionDivision
The Case of the Missing Golden Tuna
Someone snuck into the hotel kitchen and snatched the Golden Tuna trophy. Help Detective Whiskers examine the evidence and catch the sneaky cat burglar.
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 | Special Skill | Gadget Used | Dominant Paw | Fur Pattern | Secret Fear |
|---|---|---|---|---|---|
| Whiskers | laser focus | catmint dart | right pawed | orange tabby fur | allergic to water |
| Cleo | night vision | bell collar | right pawed | black sleek fur | distracted by fish |
| Nala | super pounce | yarn lasso | right pawed | orange tabby fur | scared of vacuum |
| Jasper | night vision | yarn lasso | right pawed | orange tabby fur | allergic to water |
| Felix | night vision | feather wand | left pawed | orange tabby fur | allergic to water |
| Hazel | wall climb | yarn lasso | right pawed | orange tabby fur | distracted by fish |
| Mochi | wall climb | yarn lasso | left pawed | calico patch fur | allergic to water |
| Mittens | super pounce | feather wand | right pawed | orange tabby fur | distracted by fish |
| Ziggy | night vision | catmint dart | right pawed | black sleek fur | distracted by fish |
| Shadow | wall climb | catmint dart | right pawed | calico patch fur | allergic to water |
| Sylvester | laser focus | yarn lasso | right pawed | black sleek fur | distracted by fish |
| Oliver | silent stealth | bell collar | left pawed | orange tabby fur | distracted by fish |
| Peanut | laser focus | feather wand | left pawed | black sleek fur | distracted by fish |
| Socks | laser focus | catnip spray | right pawed | orange tabby fur | distracted by fish |
| Barnaby | silent stealth | yarn lasso | left pawed | black sleek fur | distracted by fish |
| Tom | super pounce | yarn lasso | right pawed | black sleek fur | distracted by fish |
| Simba | silent stealth | bell collar | right pawed | calico patch fur | scared of vacuum |
| Smokey | silent stealth | yarn lasso | right pawed | orange tabby fur | distracted by fish |
| Luna | wall climb | bell collar | left pawed | calico patch fur | distracted by fish |
| Patches | wall climb | bell collar | right pawed | orange tabby fur | distracted by fish |
| Bella | night vision | bell collar | left pawed | calico patch fur | distracted by fish |
Clue 1
Addition
Detective Whiskers counts up all the stray cat treats left near the kitchen door to find a secret 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
8089
2583
2311
8344
5053
9538
9029
5419
7119
9538
6791
9829
2311
4440
2064
9829
T
8089
5053
4440
2311
7119
7398
2311
7119
T
8089
2583
2311
9538
2025
7119
2064
6791
3449 + 4640 =T
1270 + 1041 =E
1051 + 1013 =N
5110 + 2288 =F
1618 + 2822 =S
2386 + 2667 =U
900 + 1683 =H
4362 + 2429 =D
633 + 1392 =W
4363 + 4666 =G
3601 + 3518 =A
4693 + 5136 =O
5937 + 3601 =R
3730 + 1689 =L
3702 + 4642 =B
0/15 letters found
Clue 2
Multiplication facts (1-12)
The detective checks identical rows of tuna cans stacked on the pantry shelves to spot what was stolen.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
40
25
1
77
18
25
20
64
77
1
10
S
40
84
1
81
50
27
18
20
27
3
77
1
27
1
99
60
20
18
84
77
96
27
15
4 × 10 =S
3 × 6 =T
3 × 5 =D
10 × 6 =G
9 × 3 =E
5 × 2 =K
9 × 9 =O
5 × 10 =V
1 × 1 =R
7 × 11 =A
8 × 12 =W
7 × 12 =P
9 × 11 =I
4 × 5 =H
8 × 8 =M
1 × 3 =Y
5 × 5 =C
0/17 letters found
Clue 3
Rounding
The security monitor nearby only shows rounded numbers for the weight on the floor pressure mat.
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
70
7000
1100
50
170
1100
3700
110
30
90
3700
T
70
5000
3700
50
230
9000
50
T
70
2000
3700
90
T
70
1100
230
370
30
290
9000
50
7000
Round 66 to the nearest tenT
Round 3,703 to the nearest hundredA
Round 288 to the nearest tenF
Round 8,942 to the nearest thousandI
Round 4,811 to the nearest thousandW
Round 30 to the nearest tenY
Round 114 to the nearest tenK
Round 1,702 to the nearest thousandR
Round 372 to the nearest tenB
Round 49 to the nearest tenS
Round 1,136 to the nearest hundredE
Round 230 to the nearest tenD
Round 89 to the nearest tenC
Round 7,489 to the nearest thousandH
Round 169 to the nearest tenN
0/15 letters found
Clue 4
Subtraction
Whiskers subtracts the missing fish biscuits from the total batch to figure out how many were taken.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
I
8984
5706
1112
3705
6997
2931
I
8984
6713
6287
2931
1665
3093
6997
4848
1665
2426
5706
5687
1665
3093
6287
5706
6713
3705
2931
6287
4915
4915
7951
4848
2426
3093
11215 - 2231 =I
5325 - 4213 =V
5889 - 2958 =T
10064 - 4377 =D
5326 - 478 =F
6712 - 425 =A
4224 - 2559 =O
8948 - 3242 =N
5845 - 930 =B
6994 - 3901 =R
6897 - 184 =G
9162 - 2165 =S
12685 - 4734 =Y
4123 - 1697 =U
5852 - 2147 =E
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
The feline patrol splits the remaining clue cards equally among the team to decode the final message.
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
22 ÷ 11 = ?
32 ÷ 8 = ?
110 ÷ 11 = ?
5 ÷ 1 = ?
3 ÷ 3 = ?
63 ÷ 7 = ?
36 ÷ 6 = ?
21 ÷ 7 = ?
80 ÷ 10 = ?
33 ÷ 3 = ?
7 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain did a wall climb up the pantry, then waved a feather wand to disarm guards.
2.The villain relied on silent stealth in the hall, then swung away using a yarn lasso.
3.The villain did a wall climb up the pantry, then sprayed catnip spray as a distraction.
4.The villain did a wall climb up the pantry, then rang a bell collar while escaping.
5.The villain focused with laser focus on the safe, then swung away using a yarn lasso.
6.The villain did a wall climb up the pantry, then shot a catmint dart into the lock.
7.The villain relied on silent stealth in the hall, then shot a catmint dart into the lock.
8.The villain focused with laser focus on the safe, then shot a catmint dart into the lock.
9.The villain used a super pounce across the counter, then rang a bell collar while escaping.
10.The villain focused with laser focus on the safe, then sprayed catnip spray as a distraction.
11.The villain used night vision in the dark kitchen, then shot a catmint dart into the lock.
12.The villain did a wall climb up the pantry, then swung away using a yarn lasso.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Golden Tuna
Culprit: Hazel (wall climb · yarn lasso · right pawed · orange tabby fur · distracted by fish)
- Clue 1 (Addition): "THE BURGLAR DOES NOT USE A FEATHER WAND"3449 + 4640 = 8089 (T) · 1270 + 1041 = 2311 (E) · 1051 + 1013 = 2064 (N) · 5110 + 2288 = 7398 (F) · 1618 + 2822 = 4440 (S) · 2386 + 2667 = 5053 (U) · 900 + 1683 = 2583 (H) · 4362 + 2429 = 6791 (D) · 633 + 1392 = 2025 (W) · 4363 + 4666 = 9029 (G) · 3601 + 3518 = 7119 (A) · 4693 + 5136 = 9829 (O) · 5937 + 3601 = 9538 (R) · 3730 + 1689 = 5419 (L) · 3702 + 4642 = 8344 (B)
- Clue 2 (Multiplication facts (1-12)): "SCRATCH MARKS PROVE THEY ARE RIGHT PAWED"4 × 10 = 40 (S) · 3 × 6 = 18 (T) · 3 × 5 = 15 (D) · 10 × 6 = 60 (G) · 9 × 3 = 27 (E) · 5 × 2 = 10 (K) · 9 × 9 = 81 (O) · 5 × 10 = 50 (V) · 1 × 1 = 1 (R) · 7 × 11 = 77 (A) · 8 × 12 = 96 (W) · 7 × 12 = 84 (P) · 9 × 11 = 99 (I) · 4 × 5 = 20 (H) · 8 × 8 = 64 (M) · 1 × 3 = 3 (Y) · 5 × 5 = 25 (C)
- Clue 3 (Rounding): "THE SNEAKY CAT WAS DISTRACTED BY FISH"Round 66 to the nearest ten = 70 (T) · Round 3,703 to the nearest hundred = 3700 (A) · Round 288 to the nearest ten = 290 (F) · Round 8,942 to the nearest thousand = 9000 (I) · Round 4,811 to the nearest thousand = 5000 (W) · Round 30 to the nearest ten = 30 (Y) · Round 114 to the nearest ten = 110 (K) · Round 1,702 to the nearest thousand = 2000 (R) · Round 372 to the nearest ten = 370 (B) · Round 49 to the nearest ten = 50 (S) · Round 1,136 to the nearest hundred = 1100 (E) · Round 230 to the nearest ten = 230 (D) · Round 89 to the nearest ten = 90 (C) · Round 7,489 to the nearest thousand = 7000 (H) · Round 169 to the nearest ten = 170 (N)
- Clue 4 (Subtraction): "INVESTIGATORS FOUND ORANGE TABBY FUR"11215 - 2231 = 8984 (I) · 5325 - 4213 = 1112 (V) · 5889 - 2958 = 2931 (T) · 10064 - 4377 = 5687 (D) · 5326 - 478 = 4848 (F) · 6712 - 425 = 6287 (A) · 4224 - 2559 = 1665 (O) · 8948 - 3242 = 5706 (N) · 5845 - 930 = 4915 (B) · 6994 - 3901 = 3093 (R) · 6897 - 184 = 6713 (G) · 9162 - 2165 = 6997 (S) · 12685 - 4734 = 7951 (Y) · 4123 - 1697 = 2426 (U) · 5852 - 2147 = 3705 (E)
- Clue 5 (Division facts (1-12)): surviving statement (box 12) → Hazel22 ÷ 11 = 2 · 32 ÷ 8 = 4 · 110 ÷ 11 = 10 · 5 ÷ 1 = 5 · 3 ÷ 3 = 1 · 63 ÷ 7 = 9 · 36 ÷ 6 = 6 · 21 ÷ 7 = 3 · 80 ÷ 10 = 8 · 33 ÷ 3 = 11 · 7 ÷ 1 = 7
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Multiplication, Rounding, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Golden Tuna — set in Purrrington Grand Hotel
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects