🐱 CatsGrade 4Reading: grades 3-4Place valueMultiplicationRoundingFractions of a numberDivision
The Case of the Golden Fish Trophy
During the annual cat show at Purrfect Paws, the famous Golden Fish Trophy disappeared from its velvet pedestal! Clues were left behind all over the show floor. Solve the math problems to gather evidence and unmask the sneaky feline!
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 | gadget | snack | whistle | fur trace | dislike |
|---|---|---|---|---|---|
| Ziggy Bounce | mechanical mouse | salmon bite | gold whistle | white fur | rustling bag |
| Chester Meow | catnip launcher | chicken chew | silver whistle | orange fur | rustling bag |
| Chloe Mitten | yarn ball | sardine snack | silver whistle | white fur | spray bottle |
| Molly Purrton | catnip launcher | milk saucer | gold whistle | black fur | rustling bag |
| Luna Shadow | yarn ball | chicken chew | gold whistle | white fur | vacuum cleaner |
| Hazel Pouncer | catnip launcher | tuna treat | gold whistle | orange fur | rustling bag |
| Loki Slink | mechanical mouse | tuna treat | gold whistle | white fur | vacuum cleaner |
| Ruby Patter | catnip launcher | chicken chew | silver whistle | white fur | rustling bag |
| Sasha Scamper | yarn ball | tuna treat | silver whistle | white fur | vacuum cleaner |
| Leo Tail | mechanical mouse | tuna treat | gold whistle | orange fur | vacuum cleaner |
| Cleo Whiskers | feather wand | chicken chew | gold whistle | black fur | spray bottle |
| Daisy Leaper | yarn ball | chicken chew | silver whistle | orange fur | rustling bag |
| Oscar Snout | laser pointer | milk saucer | silver whistle | white fur | rustling bag |
| Penny Fuzz | laser pointer | sardine snack | silver whistle | white fur | rustling bag |
| Oliver Tabby | mechanical mouse | sardine snack | silver whistle | white fur | rustling bag |
| Rosie Whiskers | catnip launcher | salmon bite | silver whistle | white fur | rustling bag |
| Felix Purr | yarn ball | salmon bite | silver whistle | black fur | vacuum cleaner |
| Simba Claw | mechanical mouse | chicken chew | silver whistle | white fur | spray bottle |
| Jasper Stripe | mechanical mouse | tuna treat | silver whistle | black fur | spray bottle |
| Bella Paws | yarn ball | milk saucer | gold whistle | white fur | rustling bag |
| Nala Velvet | yarn ball | sardine snack | silver whistle | black fur | rustling bag |
Clue 1
Place value
To open the lockbox that holds the first clue, you must inspect the digit in the tens place on the keypad.
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
800
600
2000
400
3000
700
60
1000
10
T
800
50
10
50
70
90
T
800
3000
6000
2000
80
400
600
10
400
8000
2000
70
400
600
2000
40
What is the value of the 8 in 830?T
What is the value of the 6 in 4,685?H
What is the value of the 7 in 5,872?N
What is the value of the 2 in 62,744?E
What is the value of the 4 in 347?W
What is the value of the 8 in 6,984?A
What is the value of the 6 in 364?P
What is the value of the 1 in 8,719?I
What is the value of the 5 in 259?D
What is the value of the 8 in 8,733?K
What is the value of the 3 in 3,746?U
What is the value of the 7 in 729?L
What is the value of the 9 in 695?O
What is the value of the 6 in 6,409?S
What is the value of the 1 in 1,505?R
What is the value of the 4 in 436?C
0/16 letters found
Clue 2
Multiplication facts (1-12)
You count equal rows of cat treats stored in the pantry to reveal how many total items were moved.
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
22
12
55
6
84
56
56
56
36
W
22
36
56
12
16
4
84
21
W
22
42
12
56
55
16
84
42
36
6
40
12
6
40
2 × 11 =W
4 × 4 =L
10 × 4 =G
7 × 6 =H
8 × 7 =S
7 × 12 =E
9 × 4 =A
1 × 12 =I
7 × 3 =R
3 × 2 =N
4 × 1 =V
5 × 11 =T
0/12 letters found
Clue 3
Rounding
The digital paw scanner only shows estimated counts, so you round the score to the nearest ten.
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
500
2000
1100
T
500
110
200
9000
1100
T
500
200
110
1300
110
T
500
T
500
2000
1100
1700
2900
300
1300
130
2900
430
110
200
300
1700
T
500
20
70
1300
9000
7000
110
9000
Round 544 to the nearest hundredT
Round 8,622 to the nearest thousandG
Round 209 to the nearest hundredR
Round 1,314 to the nearest hundredN
Round 2,927 to the nearest hundredO
Round 429 to the nearest tenF
Round 1,736 to the nearest hundredS
Round 128 to the nearest tenD
Round 1,539 to the nearest thousandH
Round 7,139 to the nearest thousandB
Round 17 to the nearest tenL
Round 108 to the nearest tenA
Round 1,079 to the nearest hundredE
Round 267 to the nearest hundredU
Round 74 to the nearest tenI
0/15 letters found
Clue 4
Fractions of a number
You inspect a tray of collar bells and calculate what fraction of them belong to the suspect.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
12
7
18
40
28
25
35
10
6
34
14
20
15
25
35
34
40
10
14
A
12
28
18
35
34
25
6
23
25
20
35
7
20
A
12
15
10
4/8 of 24 =A
2/6 of 105 =E
8/10 of 50 =U
3/5 of 30 =L
2/6 of 21 =C
1/4 of 112 =S
1/8 of 184 =N
3/4 of 20 =I
1/2 of 40 =H
1/4 of 100 =T
2/8 of 136 =F
2/8 of 24 =O
4/6 of 21 =W
1/10 of 100 =R
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
To divide the rescued toy mice equally into evidence bags, solve this sharing problem.
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
11 ÷ 11 = ?
28 ÷ 7 = ?
96 ÷ 8 = ?
24 ÷ 12 = ?
90 ÷ 9 = ?
54 ÷ 6 = ?
70 ÷ 10 = ?
54 ÷ 9 = ?
24 ÷ 3 = ?
35 ÷ 7 = ?
18 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain fired a catnip launcher into the air, then left a salmon bite near the door.
2.The villain zapped the vault with a laser pointer, then dropped a tuna treat on the rug.
3.The villain fired a catnip launcher into the air, then spilled a milk saucer by the counter.
4.The villain deployed a mechanical mouse across the floor, then offered a sardine snack to the guard.
5.The villain waved a feather wand to distract everyone, then spilled a milk saucer by the counter.
6.The villain fired a catnip launcher into the air, then dropped a tuna treat on the rug.
7.The villain deployed a mechanical mouse across the floor, then left a salmon bite near the door.
8.The villain rolled a yarn ball through the hallway, then spilled a milk saucer by the counter.
9.The villain waved a feather wand to distract everyone, then tossed a chicken chew onto the couch.
10.The villain zapped the vault with a laser pointer, then left a salmon bite near the door.
11.The villain zapped the vault with a laser pointer, then offered a sardine snack to the guard.
12.The villain zapped the vault with a laser pointer, then spilled a milk saucer by the counter.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Golden Fish Trophy
Culprit: Penny Fuzz (laser pointer · sardine snack · silver whistle · white fur · rustling bag)
- Clue 1 (Place value): "THE CULPRIT DID NOT USE A CHICKEN CHEW"What is the value of the 8 in 830? = 800 (T) · What is the value of the 6 in 4,685? = 600 (H) · What is the value of the 7 in 5,872? = 70 (N) · What is the value of the 2 in 62,744? = 2000 (E) · What is the value of the 4 in 347? = 40 (W) · What is the value of the 8 in 6,984? = 80 (A) · What is the value of the 6 in 364? = 60 (P) · What is the value of the 1 in 8,719? = 10 (I) · What is the value of the 5 in 259? = 50 (D) · What is the value of the 8 in 8,733? = 8000 (K) · What is the value of the 3 in 3,746? = 3000 (U) · What is the value of the 7 in 729? = 700 (L) · What is the value of the 9 in 695? = 90 (O) · What is the value of the 6 in 6,409? = 6000 (S) · What is the value of the 1 in 1,505? = 1000 (R) · What is the value of the 4 in 436? = 400 (C)
- Clue 2 (Multiplication facts (1-12)): "WITNESS SAW A SILVER WHISTLE HANGING"2 × 11 = 22 (W) · 4 × 4 = 16 (L) · 10 × 4 = 40 (G) · 7 × 6 = 42 (H) · 8 × 7 = 56 (S) · 7 × 12 = 84 (E) · 9 × 4 = 36 (A) · 1 × 12 = 12 (I) · 7 × 3 = 21 (R) · 3 × 2 = 6 (N) · 4 × 1 = 4 (V) · 5 × 11 = 55 (T)
- Clue 3 (Rounding): "THE TARGET RAN AT THE SOUND OF A RUSTLING BAG"Round 544 to the nearest hundred = 500 (T) · Round 8,622 to the nearest thousand = 9000 (G) · Round 209 to the nearest hundred = 200 (R) · Round 1,314 to the nearest hundred = 1300 (N) · Round 2,927 to the nearest hundred = 2900 (O) · Round 429 to the nearest ten = 430 (F) · Round 1,736 to the nearest hundred = 1700 (S) · Round 128 to the nearest ten = 130 (D) · Round 1,539 to the nearest thousand = 2000 (H) · Round 7,139 to the nearest thousand = 7000 (B) · Round 17 to the nearest ten = 20 (L) · Round 108 to the nearest ten = 110 (A) · Round 1,079 to the nearest hundred = 1100 (E) · Round 267 to the nearest hundred = 300 (U) · Round 74 to the nearest ten = 70 (I)
- Clue 4 (Fractions of a number): "A CLUSTER OF WHITE FUR WAS LEFT ON THE CHAIR"4/8 of 24 = 12 (A) · 2/6 of 105 = 35 (E) · 8/10 of 50 = 40 (U) · 3/5 of 30 = 18 (L) · 2/6 of 21 = 7 (C) · 1/4 of 112 = 28 (S) · 1/8 of 184 = 23 (N) · 3/4 of 20 = 15 (I) · 1/2 of 40 = 20 (H) · 1/4 of 100 = 25 (T) · 2/8 of 136 = 34 (F) · 2/8 of 24 = 6 (O) · 4/6 of 21 = 14 (W) · 1/10 of 100 = 10 (R)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Penny Fuzz11 ÷ 11 = 1 · 28 ÷ 7 = 4 · 96 ÷ 8 = 12 · 24 ÷ 12 = 2 · 90 ÷ 9 = 10 · 54 ÷ 6 = 9 · 70 ÷ 10 = 7 · 54 ÷ 9 = 6 · 24 ÷ 3 = 8 · 35 ÷ 7 = 5 · 18 ÷ 6 = 3
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Multiplication, Rounding, Fractions of a number, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Golden Fish Trophy — set in Purrfect Paws Cat Club Expo
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects