Math Mysteries
🔎 Golden RetrieversGrade 6Reading: grades 5-6MultiplicationMulti-step word problemsSkip countingSubtractionMissing addends

The Great Golden Trophy Caper

The Golden Retriever Gala is in ruins! Someone has swiped the Golden Trophy Cup, which was filled to the brim with elite organic peanut butter biscuits. The Head Judge is devastated. We must help the canine patrol sniff out the culprit among the twenty-four golden contestants!

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameSignature SkillFavorite HobbyDominant PawFur ShadeDistraction
DaisyMega LeapingSock StealingLeft PawedAuburn FurSqueaky Ducks
CometFast FetchingSquirrel ChasingLeft PawedCream FurPeanut Butter
TuckerSonic BarkingPuddle SplashingRight PawedCream FurPeanut Butter
BaileyMega LeapingSock StealingLeft PawedAuburn FurBelly Rubs
SammySonic BarkingFrisbee CatchingLeft PawedCream FurPeanut Butter
JaxFast FetchingPuddle SplashingRight PawedAuburn FurPeanut Butter
ShadowMega LeapingFrisbee CatchingLeft PawedCream FurBelly Rubs
CooperMega LeapingSqueaky Toy HoardingRight PawedAuburn FurPeanut Butter
SadieMega LeapingSqueaky Toy HoardingLeft PawedCream FurPeanut Butter
MaggieSonic BarkingSock StealingRight PawedAuburn FurSqueaky Ducks
MarleySonic BarkingPuddle SplashingLeft PawedCream FurSqueaky Ducks
OtisSuper SniffingFrisbee CatchingLeft PawedCream FurBelly Rubs
RustyDeep DiggingFrisbee CatchingLeft PawedCream FurPeanut Butter
BuddyMega LeapingSquirrel ChasingLeft PawedAuburn FurBelly Rubs
HoneyMega LeapingSock StealingRight PawedHoney FurBelly Rubs
SunnyFast FetchingFrisbee CatchingRight PawedCream FurPeanut Butter
DukeMega LeapingSquirrel ChasingRight PawedAuburn FurSqueaky Ducks
BusterMega LeapingSquirrel ChasingRight PawedAuburn FurPeanut Butter
MollySuper SniffingSqueaky Toy HoardingLeft PawedCream FurPeanut Butter
CharlieDeep DiggingSock StealingLeft PawedAuburn FurPeanut Butter
RockyDeep DiggingPuddle SplashingRight PawedHoney FurPeanut Butter
Clue 1

Multiplication facts (1-12)

The security team found a muddy map showing how many paces the thief took to escape. We have to calculate the total path by adding the doggy-paddle distance, subtracting the hurdles, and doubling the yard length!

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
28
27
144
T
28
27
7
144
6
96
20
144
44
2
20
T
28
22
7
50
144
44
4
77
7
45
45
144
22
66
27
80
44
7
2
8
4 × 7 =T
6 × 11 =C
2 × 11 =L
12 × 8 =D
8 × 1 =G
9 × 3 =H
12 × 12 =E
10 × 8 =A
10 × 2 =O
7 × 1 =I
4 × 1 =Q
11 × 4 =S
10 × 5 =K
9 × 5 =R
2 × 1 =N
3 × 2 =F
7 × 11 =U
0/17 letters found
Clue 2

Multi-step word problems

To check the backyard security cameras, we need to unlock the digital padlock. The code is hidden in a grid of golden treats lined up in seven equal rows. Let's multiply the rows to get the key.

Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.

Awitnesssawthevillainwas
L
81
67
47
85
29
30
72
67
D
 
.
Officer Barkley collected 103 squeaky bones in the morning and 59 squeaky bones in the afternoon, then split them equally among 2 The Golden Guard. How many squeaky bones did each get?L
Officer Barkley earned 4 grooming brushes in each of 3 rounds, plus 21 bonus grooming brushes. Then 4 grooming brushes were lost. How many grooming brushes are left?P
Officer Barkley earned 3 squeaky bones in each of 6 rounds, plus 76 bonus squeaky bones. Then 9 squeaky bones were lost. How many squeaky bones are left?T
Officer Barkley filled 9 boxes with 4 grooming brushes each, then found 31 more grooming brushes. How many grooming brushes are there in all?E
There were 507 grooming brushes in all. 37 grooming brushes were set aside. The rest were shared equally among 10 The Golden Guard. How many grooming brushes did each get?F
There were 189 tennis balls in all. 3 The Golden Guard used 15 tennis balls each. The other 2 The Golden Guard shared the rest equally. How many tennis balls did each of the other The Golden Guard get?W
Officer Barkley earned 5 dog biscuits in each of 5 rounds, plus 13 bonus dog biscuits. Then 8 dog biscuits were lost. How many dog biscuits are left?A
0/7 letters found
Clue 3

Skip counting

We found a trail of dropped tennis balls leading through the agility park. The thief dropped them in a perfect pattern of threes. If we skip count the balls, we can find where the thief went next!

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
16
14
T
50
16
40
14
24
12
8
20
24
25
40
70
14
39
27
9
30
14
8
22
55
T
50
27
55
T
50
T
50
14
110
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70T
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15Y
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26N
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18W
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33B
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130R
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50P
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35O
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90L
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65U
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30F
0/17 letters found
Clue 4

Subtraction

A bag of premium kibble was torn open near the trophy stand. By subtracting the amount of kibble left in the sack from the weight of a full bag, we can figure out how much food the thief devoured.

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

C
3529
8397
6237
7278
7971
5506
4505
8397
8603
7278
6920
5506
8989
4505
1206
5651
7278
2408
2408
5227
6237
6920
C
3529
6237
1206
6237
7123 - 3594 =C
11897 - 3926 =M
10751 - 2354 =R
11378 - 4458 =S
7753 - 2247 =F
8086 - 3581 =U
8175 - 897 =A
6908 - 671 =E
13531 - 4928 =W
11662 - 2673 =O
4515 - 3309 =N
6765 - 4357 =T
7725 - 2498 =H
7712 - 2061 =D
0/14 letters found
Clue 5

Missing addends — the last clue

The toy chest is almost full, but a few squeaky bones are missing. If we know the total capacity of the chest and the number of toys still inside, we can find the missing amount to crack the final lock.

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
15 + ___ = 23
13 + ___ = 22
9 + ___ = 14
21 + ___ = 33
3 + ___ = 14
12 + ___ = 16
9 + ___ = 19
22 + ___ = 29
36 + ___ = 39
31 + ___ = 37
19 + ___ = 21
Step 2 — cross out the sentence with each answer
1.The villain shattered the display case glass with a bark, then snatched a stray flying disc.
2.The villain sniffed out the hidden lock, then grabbed the judges lucky gym socks.
3.The villain leaped over the security fence, then grabbed the judges lucky gym socks.
4.The villain shattered the display case glass with a bark, then left muddy paw prints everywhere.
5.The villain sniffed out the hidden lock, then stuffed three squeaky toys into a bag.
6.The villain leaped over the security fence, then left muddy paw prints everywhere.
7.The villain dashed past the guards in a blur, then grabbed the judges lucky gym socks.
8.The villain tunneled right under the vault door, then snatched a stray flying disc.
9.The villain leaped over the security fence, then stuffed three squeaky toys into a bag.
10.The villain sniffed out the hidden lock, then left muddy paw prints everywhere.
11.The villain tunneled right under the vault door, then bolted after a woodland rodent.
12.The villain dashed past the guards in a blur, then left muddy paw prints everywhere.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 6 math
Math topics
Multiplication, Multi-step word problems, Skip counting, Subtraction, Missing addends
Reading level
grades 5-6
Theme
The Great Golden Trophy Caper — set in The Annual Golden Retriever Gala and Agility Cup
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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