Math Crackers
🐶 The stolen puppyGrade 4Reading: grades 5-6MultiplicationRoundingAdditionSubtractionDivision

The Case of the Missing Golden Retriever

Someone unlocked the playpen at Oakridge Animal Shelter and ran off with Barnaby, the star golden retriever puppy! Detective, analyze the clues left around the park to track down the thief and rescue Barnaby.

Suspects

Possible suspects

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

21 of 21 still in play
NamePuppy LureDisguise GearDominant HandHairstyleWeakness
Janitor Joebacon chew stripoversized trench coatleft handedbraided blonde hairsudden spray bottle
Mayor Higginsbacon chew strippadded knee padsleft handedcurly auburn hairsudden spray bottle
Farmer Fredbacon chew stripbright yellow rain hatleft handedbraided blonde hairloud dog whistle
Driver Dansqueaky rubber duckreflective runner vestright handedcurly auburn hairsudden spray bottle
Chef Chloesqueaky rubber duckpadded knee padsleft handedbraided blonde hairsudden spray bottle
Inspector Ianfleece tug ropebright yellow rain hatright handedstraight black hairloud dog whistle
Walker Willfleece tug ropereflective runner vestright handedbraided blonde hairnoisy rustling bag
Trainer Tobypeanut butter pouchpadded knee padsleft handedcurly auburn hairsudden spray bottle
Warden Wadepeanut butter pouchreflective runner vestleft handedcurly auburn hairsudden spray bottle
Baker Brendafleece tug ropepadded knee padsleft handedcurly auburn hairsudden spray bottle
Reporter Rosabacon chew stripheavy leather glovesleft handedcurly auburn hairsudden spray bottle
Agent Alexbacon chew stripbright yellow rain hatleft handedcurly auburn hairloud dog whistle
Officer Petefleece tug ropebright yellow rain hatright handedcurly auburn hairsudden spray bottle
Ranger Ritabacon chew stripreflective runner vestright handedcurly auburn hairloud dog whistle
Captain Colebacon chew stripheavy leather glovesright handedbraided blonde hairsudden spray bottle
Groomer Garysqueaky rubber duckoversized trench coatright handedcurly auburn hairsudden spray bottle
Florist Fayelaser pointer toyheavy leather glovesleft handedstraight black hairnoisy rustling bag
Teacher Tarasqueaky rubber duckreflective runner vestright handedcurly auburn hairloud dog whistle
Nurse Clarafleece tug ropebright yellow rain hatright handedbraided blonde hairsudden spray bottle
Vet Vanessasqueaky rubber duckpadded knee padsright handedbraided blonde hairloud dog whistle
Pilot Paulpeanut butter pouchpadded knee padsleft handedbraided blonde hairnoisy rustling bag
Clue 1

Multiplication facts (1-12)

To figure out how many kibble bags were moved, multiply the rows of shelves by the bags per row.

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
54
72
2
108
63
40
8
99
T
70
7
99
7
12
32
T
70
44
72
35
8
54
72
35
60
49
63
72
35
T
70
54
72
8
77
63
32
60
72
4
7 × 10 =T
1 × 12 =N
7 × 5 =A
7 × 11 =G
9 × 7 =L
11 × 9 =I
6 × 10 =V
9 × 8 =E
4 × 8 =O
7 × 1 =D
9 × 6 =H
2 × 4 =R
2 × 1 =C
11 × 4 =W
9 × 12 =U
5 × 8 =P
4 × 1 =S
7 × 7 =Y
0/18 letters found
Clue 2

Rounding

The digital scale registered the puppy crate weight, but the monitor rounds every number 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.

W
700
20
9000
30
50
290
290
50
290
290
2300
W
700
2300
370
50
1700
9000
900
2300
30
2900
50
2900
5000
50
3700
290
430
30
370
50
2300
4300
20
30
110
Round 669 to the nearest hundredW
Round 288 to the nearest tenS
Round 3,730 to the nearest hundredR
Round 2,948 to the nearest hundredD
Round 28 to the nearest tenN
Round 934 to the nearest hundredH
Round 374 to the nearest tenL
Round 8,821 to the nearest thousandT
Round 19 to the nearest tenI
Round 49 to the nearest tenE
Round 1,674 to the nearest hundredF
Round 4,316 to the nearest hundredV
Round 433 to the nearest tenO
Round 2,348 to the nearest hundredA
Round 113 to the nearest tenG
Round 5,077 to the nearest thousandP
0/16 letters found
Clue 3

Addition

We added up the supply logs from the front desk and the back kennel to see how many leashes were missing.

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
4358
2294
2234
9070
8457
9070
3928
2234
3664
T
4358
4276
8904
9070
9070
T
4358
6706
3928
3928
2234
4249
6713
2376
8904
9070
3928
8019
8904
2376
6713
6706
T
4358
T
4358
2099
2234
2682 + 1676 =T
1789 + 2487 =W
1524 + 2140 =C
3564 + 3149 =B
1832 + 2096 =P
1521 + 773 =H
1295 + 2954 =D
3462 + 4995 =U
1008 + 1226 =E
3589 + 4430 =R
765 + 1611 =Y
3523 + 3183 =O
938 + 1161 =L
6093 + 2977 =S
3859 + 5045 =A
0/15 letters found
Clue 4

Subtraction

By subtracting the remaining tennis balls from the original box total, we tracked the thief's escape path.

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
3384
7154
2875
2270
4901
2103
S
3384
1056
4506
3450
6355
2875
7161
4308
2270
6355
8013
6355
2875
4901
4929
2270
3022
2875
2474
7722
2875
7722
1056
4901
7154
4929
7722
7161
2270
7154
3450
4929
7557 - 4173 =S
7862 - 3356 =F
2109 - 6 =D
10219 - 2206 =B
10257 - 3902 =U
7323 - 4301 =I
4154 - 1884 =A
7896 - 742 =T
3506 - 631 =R
8131 - 409 =E
6239 - 1310 =H
3823 - 1349 =W
7664 - 4214 =C
10704 - 3543 =L
9143 - 4835 =Y
3135 - 2079 =O
8679 - 3778 =N
0/17 letters found
Clue 5

Division facts (1-12) — the last clue

The security team divided the treats equally among the search dogs to keep everyone energized.

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
20 ÷ 5 = ?
60 ÷ 5 = ?
2 ÷ 2 = ?
55 ÷ 11 = ?
8 ÷ 1 = ?
48 ÷ 8 = ?
90 ÷ 10 = ?
30 ÷ 3 = ?
6 ÷ 3 = ?
18 ÷ 6 = ?
35 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain tossed a fleece tug rope, then strapped on padded knee pads.
2.The villain opened a peanut butter pouch, then adjusted an oversized trench coat.
3.The villain tossed a fleece tug rope, then pulled down a bright yellow rain hat.
4.The villain opened a peanut butter pouch, then strapped on padded knee pads.
5.The villain offered a bacon chew strip, then put on heavy leather gloves.
6.The villain flashed a laser pointer toy, then strapped on padded knee pads.
7.The villain opened a peanut butter pouch, then pulled down a bright yellow rain hat.
8.The villain tossed a fleece tug rope, then tightened a reflective runner vest.
9.The villain offered a bacon chew strip, then tightened a reflective runner vest.
10.The villain flashed a laser pointer toy, then adjusted an oversized trench coat.
11.The villain opened a peanut butter pouch, then tightened a reflective runner vest.
12.The villain offered a bacon chew strip, then strapped on padded knee pads.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Multiplication, Rounding, Addition, Subtraction, Division
Reading level
grades 5-6
Theme
The Case of the Missing Golden Retriever — set in Oakridge Animal Shelter and Dog Park
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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