Math Mysteries
🔎 Sherif labrodar dobie papillGrade 5Reading: grades 3-4Fractions of a numberOrder of operationsMultiplicationRoundingDivision

The Case of the Canine Clones

Oh no! A rogue clone has sneaked into the high-tech lab and swiped the Chief's golden badge! Sheriff Labrador and Officer Dobie need your help to track down the correct suspect before they escape. Let's solve the math puzzles and find the real culprit!

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 GadgetClone UpgradeLab Coat PatchFur ColorFavorite Snack
Papillon ThreeRadar CollarTurbo BootsLeft Sleeve PatchPapillon WhiteSardine Treats
Dobie SixRadar CollarSonar EarsRight Sleeve PatchPapillon WhitePeanut Butter
Dobie FourNet LauncherGlider PackRight Sleeve PatchLabrador YellowPeanut Butter
Papillon OneRadar CollarGlider PackLeft Sleeve PatchDoberman BlackPeanut Butter
Labrador TwoLaser LassoHologram WatchRight Sleeve PatchLabrador YellowCheese Cubes
Papillon FiveSuper MagnifierTurbo BootsLeft Sleeve PatchDoberman BlackSardine Treats
Dobie SevenRadar CollarTurbo BootsLeft Sleeve PatchPapillon WhitePeanut Butter
Papillon FourSuper MagnifierHologram WatchLeft Sleeve PatchDoberman BlackSardine Treats
Dobie ThreeSiren WhistleTurbo BootsRight Sleeve PatchPapillon WhitePeanut Butter
Papillon SixSiren WhistleSonar EarsLeft Sleeve PatchDoberman BlackCheese Cubes
Labrador EightNet LauncherTurbo BootsRight Sleeve PatchPapillon WhitePeanut Butter
Labrador SevenLaser LassoTurbo BootsRight Sleeve PatchPapillon WhitePeanut Butter
Labrador FourNet LauncherTurbo BootsRight Sleeve PatchPapillon WhiteCheese Cubes
Papillon EightLaser LassoGlider PackLeft Sleeve PatchPapillon WhiteSardine Treats
Labrador FiveRadar CollarStealth ShieldRight Sleeve PatchDoberman BlackPeanut Butter
Dobie FiveSuper MagnifierStealth ShieldLeft Sleeve PatchPapillon WhiteSardine Treats
Labrador OneSuper MagnifierSonar EarsLeft Sleeve PatchDoberman BlackPeanut Butter
Papillon SevenSiren WhistleStealth ShieldLeft Sleeve PatchDoberman BlackSardine Treats
Dobie TwoSiren WhistleStealth ShieldLeft Sleeve PatchLabrador YellowSardine Treats
Dobie OneLaser LassoTurbo BootsRight Sleeve PatchLabrador YellowCheese Cubes
Labrador SixLaser LassoGlider PackRight Sleeve PatchPapillon WhitePeanut Butter
Clue 1

Fractions of a number

Sheriff Labrador counts the cloned badges. Only a fraction of the clones are missing safety codes, which points us to our first lead.

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
13
29
21
24
26
31
31
18
26
20
3
7
21
14
20
7
T
13
29
18
24
21
14
7
20
18
23
21
18
23
14
1/3 of 39 =T
1/5 of 130 =I
1/10 of 70 =O
3/6 of 46 =R
1/2 of 42 =E
4/6 of 21 =S
2/6 of 54 =A
5/10 of 6 =D
4/10 of 50 =N
1/2 of 48 =V
1/3 of 87 =H
3/6 of 62 =L
0/12 letters found
Clue 2

Order of operations

Officer Dobie solves the security console lock. He must follow the strict step-by-step order of operations to reveal a hidden 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
25
7
17
19
69
19
27
17
18
T
25
7
56
31
56
27
56
T
25
18
7
22
57
T
25
7
17
50
70
68
7
T
25
19
72
17
17
58
17
9 + 4 × 4 =T
5 × 9 - 14 =D
12 × 7 - 27 =N
5 × 5 - 7 =C
5 × 8 - 18 =O
11 × 6 - 16 =R
2 × 10 - 3 =E
10 × 3 - 3 =P
34 + 6 × 4 =V
5 × 8 - 21 =S
5 + 8 × 8 =U
44 + 6 × 4 =G
3 + 2 × 2 =H
7 × 12 - 14 =I
11 × 6 - 10 =A
9 × 11 - 27 =L
0/16 letters found
Clue 3

Multiplication facts (1-12)

The team finds rows of empty clone pods. Multiplying the rows of pods helps us tally the escaped suspects.

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
49
108
11
108
3
18
108
18
110
6
108
12
55
11
11
W
49
121
110
6
80
108
25
3
144
110
24
144
110
110
108
28
7 × 7 =W
9 × 12 =E
1 × 3 =N
7 × 4 =R
4 × 6 =B
5 × 11 =O
5 × 5 =A
11 × 1 =F
12 × 12 =U
2 × 6 =M
10 × 8 =P
11 × 11 =I
2 × 3 =H
10 × 11 =T
3 × 6 =D
0/15 letters found
Clue 4

Rounding

The tracking radar only shows rounded numbers for the clone speed. Rounding the signals gives us the next location.

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
170
3700
50
2900
230
5000
200
2000
W
170
9000
290
5000
20
200
700
370
20
700
2900
3700
230
5000
70
20
20
2000
Round 167 to the nearest tenW
Round 51 to the nearest tenI
Round 20 to the nearest tenO
Round 70 to the nearest tenL
Round 3,705 to the nearest hundredH
Round 9,151 to the nearest thousandA
Round 166 to the nearest hundredU
Round 228 to the nearest tenE
Round 293 to the nearest tenS
Round 369 to the nearest tenD
Round 1,731 to the nearest thousandR
Round 686 to the nearest hundredN
Round 5,331 to the nearest thousandF
Round 2,897 to the nearest hundredT
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

Sheriff Labrador shares the evidence files equally among his squad. Division helps make sure every detective gets a fair clue.

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
12 ÷ 12 = ?
4 ÷ 2 = ?
22 ÷ 2 = ?
10 ÷ 1 = ?
132 ÷ 11 = ?
108 ÷ 12 = ?
20 ÷ 5 = ?
36 ÷ 6 = ?
40 ÷ 5 = ?
12 ÷ 4 = ?
35 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain blocked the hallway with a net launcher, then zoomed away using turbo boots.
2.The villain roped the security desk with a laser lasso, then zoomed away using turbo boots.
3.The villain blocked the hallway with a net launcher, then soared out the window with a glider pack.
4.The villain tracked the secret vault with a radar collar, then fooled the cameras with a hologram watch.
5.The villain blocked the hallway with a net launcher, then fooled the cameras with a hologram watch.
6.The villain zapped the lab locks with a super magnifier, then soared out the window with a glider pack.
7.The villain roped the security desk with a laser lasso, then soared out the window with a glider pack.
8.The villain tracked the secret vault with a radar collar, then soared out the window with a glider pack.
9.The villain roped the security desk with a laser lasso, then faded from sight using a stealth shield.
10.The villain zapped the lab locks with a super magnifier, then detected the patrol using sonar ears.
11.The villain distracted the guards with a siren whistle, then zoomed away using turbo boots.
12.The villain zapped the lab locks with a super magnifier, then fooled the cameras with a hologram watch.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 5 math
Math topics
Fractions of a number, Order of operations, Multiplication, Rounding, Division
Reading level
grades 3-4
Theme
The Case of the Canine Clones — set in Forest Town Police Laboratory
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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