🐶 DogsGrade 4Reading: grades 3-4Place valueSkip countingMultiplicationRoundingDivision
The Case of the Missing Golden Bone
Someone snuck into Barkington Pet Park and stole the coveted Golden Bone trophy just before the annual agility show! It is up to you to follow the paw prints, analyze the treats, and crack the code to find out which crafty canine is responsible.
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 | Favorite Toy | Paw Stance | Fur Color | Treat Choice |
|---|---|---|---|---|---|
| Nova Nippers | Quiet Sneak | Plush Duck | Right Pawed | Golden Fur | Crunchy Biscuit |
| Ivy Itch | Quiet Sneak | Rubber Bone | Right Pawed | Black Fur | Crunchy Biscuit |
| Uno Unbound | Deep Dig | Squeaky Ball | Left Pawed | Golden Fur | Crunchy Biscuit |
| Ziggy Zoom | High Jump | Flying Disc | Right Pawed | Black Fur | Peanut Butter |
| Scout Sniff | Deep Dig | Plush Duck | Left Pawed | Golden Fur | Crunchy Biscuit |
| Rex Retriever | Loud Bark | Plush Duck | Left Pawed | Black Fur | Peanut Butter |
| Ginger Growl | Fast Dash | Plush Duck | Right Pawed | Black Fur | Crunchy Biscuit |
| Daisy Digs | Quiet Sneak | Squeaky Ball | Right Pawed | Black Fur | Peanut Butter |
| Penny Paws | High Jump | Squeaky Ball | Right Pawed | Spotted Fur | Peanut Butter |
| Hank Howl | High Jump | Squeaky Ball | Right Pawed | Spotted Fur | Cheese Cube |
| Lola Leash | High Jump | Chew Rope | Right Pawed | Black Fur | Peanut Butter |
| Felix Fetch | Deep Dig | Squeaky Ball | Right Pawed | Golden Fur | Cheese Cube |
| Kona Kennel | Deep Dig | Plush Duck | Right Pawed | Golden Fur | Peanut Butter |
| Milo Muzzle | Quiet Sneak | Plush Duck | Right Pawed | Spotted Fur | Crunchy Biscuit |
| Toby Tail | Quiet Sneak | Plush Duck | Left Pawed | Golden Fur | Crunchy Biscuit |
| Duke Dasher | Loud Bark | Flying Disc | Right Pawed | Black Fur | Peanut Butter |
| Bella Bow | Deep Dig | Squeaky Ball | Left Pawed | Golden Fur | Cheese Cube |
| Buster Bark | Quiet Sneak | Rubber Bone | Left Pawed | Black Fur | Crunchy Biscuit |
| Ollie Outdoor | Loud Bark | Squeaky Ball | Right Pawed | Black Fur | Peanut Butter |
| Yeller Yap | Loud Bark | Squeaky Ball | Right Pawed | Spotted Fur | Crunchy Biscuit |
| Charlie Chew | High Jump | Chew Rope | Right Pawed | Golden Fur | Crunchy Biscuit |
Clue 1
Place value
Check the digital ID digits on the dog collar scanner to unlock 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
90
80
7000
700
10
700
900
7000
70
T
90
100
600
7000
700
500
600
T
90
70
200
6000
6000
800
200
70
80
7000
20
6000
600
900
7000
What is the value of the 9 in 4,696?T
What is the value of the 5 in 4,500?N
What is the value of the 7 in 7,609?E
What is the value of the 6 in 644?O
What is the value of the 8 in 813?Y
What is the value of the 2 in 6,620?W
What is the value of the 7 in 1,751?S
What is the value of the 2 in 269?A
What is the value of the 6 in 36,119?R
What is the value of the 9 in 921?P
What is the value of the 8 in 386?H
What is the value of the 1 in 2,413?U
What is the value of the 7 in 2,070?C
What is the value of the 1 in 6,103?D
0/14 letters found
Clue 2
Skip counting
Count by groups along the paw print path to reveal the next 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
35
120
21
130
36
130
80
21
100
T
35
110
130
60
110
65
120
T
35
80
70
15
21
40
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100P
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120C
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150S
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27E
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130I
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75G
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42U
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80R
0/13 letters found
Clue 3
Multiplication facts (1-12)
Multiply the treats stored in equal doggie bags to uncover a secret code.
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
3
88
50
7
4
55
55
10
4
16
8
12
50
10
108
16
50
8
8
4
8
90
50
10
16
33
T
3
14
33
T
3
T
3
50
1
1 × 3 =T
12 × 9 =K
7 × 1 =V
3 × 4 =W
2 × 8 =N
10 × 1 =A
5 × 10 =E
5 × 11 =L
11 × 3 =U
1 × 1 =R
1 × 4 =I
10 × 9 =P
4 × 2 =S
11 × 8 =H
7 × 2 =B
0/15 letters found
Clue 4
Rounding
The electronic dog gate screen rounds the total park visitors to give a hint.
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
1700
430
3700
230
700
3700
3000
3700
430
7000
110
50
900
7000
700
130
9000
20
1300
Round 1,742 to the nearest hundredT
Round 426 to the nearest tenH
Round 23 to the nearest tenU
Round 3,088 to the nearest thousandN
Round 46 to the nearest tenB
Round 8,908 to the nearest thousandF
Round 1,259 to the nearest hundredR
Round 878 to the nearest hundredL
Round 742 to the nearest hundredC
Round 6,778 to the nearest thousandA
Round 107 to the nearest tenD
Round 3,665 to the nearest hundredE
Round 229 to the nearest tenS
Round 130 to the nearest tenK
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
Divide the dog biscuits equally into bowls to solve the final puzzle.
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
70 ÷ 7 = ?
12 ÷ 3 = ?
24 ÷ 4 = ?
88 ÷ 11 = ?
120 ÷ 10 = ?
24 ÷ 8 = ?
44 ÷ 4 = ?
20 ÷ 4 = ?
22 ÷ 11 = ?
36 ÷ 4 = ?
7 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain dug under the flower bed, then took the plush duck.
2.The villain dashed across the agility lawn, then grabbed the squeaky ball.
3.The villain dashed across the agility lawn, then took the plush duck.
4.The villain sneaked through the side tunnel, then grabbed the squeaky ball.
5.The villain sneaked through the side tunnel, then snatched the rubber bone.
6.The villain barked loudly at the guard gate, then grabbed the squeaky ball.
7.The villain barked loudly at the guard gate, then stole the flying disc.
8.The villain barked loudly at the guard gate, then took the plush duck.
9.The villain dug under the flower bed, then swiped the chew rope.
10.The villain jumped over the high fence, then stole the flying disc.
11.The villain sneaked through the side tunnel, then took the plush duck.
12.The villain dug under the flower bed, then grabbed the squeaky ball.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Golden Bone
Culprit: Duke Dasher (Loud Bark · Flying Disc · Right Pawed · Black Fur · Peanut Butter)
- Clue 1 (Place value): "THE SUSPECT DOES NOT CARRY A CHEW ROPE"What is the value of the 9 in 4,696? = 90 (T) · What is the value of the 5 in 4,500? = 500 (N) · What is the value of the 7 in 7,609? = 7000 (E) · What is the value of the 6 in 644? = 600 (O) · What is the value of the 8 in 813? = 800 (Y) · What is the value of the 2 in 6,620? = 20 (W) · What is the value of the 7 in 1,751? = 700 (S) · What is the value of the 2 in 269? = 200 (A) · What is the value of the 6 in 36,119? = 6000 (R) · What is the value of the 9 in 921? = 900 (P) · What is the value of the 8 in 386? = 80 (H) · What is the value of the 1 in 2,413? = 10 (U) · What is the value of the 7 in 2,070? = 70 (C) · What is the value of the 1 in 6,103? = 100 (D)
- Clue 2 (Skip counting): "THE SUSPECT IS RIGHT PAWED"Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (P) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (C) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (S) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (E) · Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (W) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (I) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50 = 40 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (G) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (R)
- Clue 3 (Multiplication facts (1-12)): "THE VILLAINS WEAKNESS IS PEANUT BUTTER"1 × 3 = 3 (T) · 12 × 9 = 108 (K) · 7 × 1 = 7 (V) · 3 × 4 = 12 (W) · 2 × 8 = 16 (N) · 10 × 1 = 10 (A) · 5 × 10 = 50 (E) · 5 × 11 = 55 (L) · 11 × 3 = 33 (U) · 1 × 1 = 1 (R) · 1 × 4 = 4 (I) · 10 × 9 = 90 (P) · 4 × 2 = 8 (S) · 11 × 8 = 88 (H) · 7 × 2 = 14 (B)
- Clue 4 (Rounding): "THE SCENE HAD BLACK FUR"Round 1,742 to the nearest hundred = 1700 (T) · Round 426 to the nearest ten = 430 (H) · Round 23 to the nearest ten = 20 (U) · Round 3,088 to the nearest thousand = 3000 (N) · Round 46 to the nearest ten = 50 (B) · Round 8,908 to the nearest thousand = 9000 (F) · Round 1,259 to the nearest hundred = 1300 (R) · Round 878 to the nearest hundred = 900 (L) · Round 742 to the nearest hundred = 700 (C) · Round 6,778 to the nearest thousand = 7000 (A) · Round 107 to the nearest ten = 110 (D) · Round 3,665 to the nearest hundred = 3700 (E) · Round 229 to the nearest ten = 230 (S) · Round 130 to the nearest ten = 130 (K)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Duke Dasher70 ÷ 7 = 10 · 12 ÷ 3 = 4 · 24 ÷ 4 = 6 · 88 ÷ 11 = 8 · 120 ÷ 10 = 12 · 24 ÷ 8 = 3 · 44 ÷ 4 = 11 · 20 ÷ 4 = 5 · 22 ÷ 11 = 2 · 36 ÷ 4 = 9 · 7 ÷ 7 = 1
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Skip counting, Multiplication, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Golden Bone — set in Barkington Pet Park
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects