Math Mysteries
🔎 PenguinsGrade 5Reading: grades 5-6Fractions of a numberOrder of operationsMultiplicationRoundingDivision

The Great Golden Anchovy Heist

The legendary Golden Anchovy has been stolen from Shiver City! A mysterious thief escaped into the freezing wind. As a top detective for the Sub-Zero Patrol, you must track down the culprit before they make it to the deep ocean.

Suspects

Possible suspects

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

21 of 21 still in play
NamePrimary GearBackup GadgetDominant FlipperCrest StyleWeakness
MumbleLaser BeakIce Wall BuilderLeft flipperedSpiky crestShining spotlight
IggyGlacier DrillDeep DiverRight flipperedSlicked crownSqueaky fish toy
KowalskiSnow LauncherSonar ClickerRight flipperedSlicked crownShining spotlight
ZekeSnow LauncherNight VisionRight flipperedSlicked crownWarm hot cocoa
SaltySnow LauncherIce Wall BuilderLeft flipperedDouble plumeShining spotlight
PrivateLaser BeakDeep DiverRight flipperedSlicked crownShining spotlight
SkipperSnow LauncherDeep DiverRight flipperedDouble plumeSqueaky fish toy
SnowyLaser BeakNight VisionRight flipperedSlicked crownSqueaky fish toy
PebbleRocket SledTurbo SliderRight flipperedDouble plumeWarm hot cocoa
FeathersSnow LauncherIce Wall BuilderRight flipperedSlicked crownShining spotlight
BlizzardLaser BeakNight VisionRight flipperedDouble plumeWarm hot cocoa
PennyGlacier DrillSonar ClickerLeft flipperedSlicked crownSqueaky fish toy
PinguRocket SledIce Wall BuilderRight flipperedDouble plumeSqueaky fish toy
PipLaser BeakDeep DiverLeft flipperedSpiky crestWarm hot cocoa
HopperSnow LauncherDeep DiverLeft flipperedSlicked crownShining spotlight
TuxLaser BeakNight VisionRight flipperedDouble plumeShining spotlight
BarnabyRocket SledNight VisionLeft flipperedSlicked crownSqueaky fish toy
FrostyGlacier DrillDeep DiverLeft flipperedSlicked crownSqueaky fish toy
WaddlesworthGrappling HookNight VisionRight flipperedSlicked crownShining spotlight
FritzGlacier DrillSonar ClickerLeft flipperedSlicked crownShining spotlight
LovelaceGlacier DrillTurbo SliderRight flipperedSlicked crownShining spotlight
Clue 1

Fractions of a number

The patrol boat found a group of frozen fish blocks. Only a small fraction of them were marked with the thief's logo.

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
5
8
40
T
5
8
28
40
13
27
26
40
4
15
26
T
5
8
38
6
40
38
T
5
25
14
37
26
4
29
28
27
40
14
5/6 of 6 =T
1/2 of 76 =A
4/10 of 10 =S
3/8 of 16 =V
1/10 of 150 =N
3/6 of 58 =L
2/4 of 26 =F
1/4 of 148 =B
1/6 of 168 =I
4/8 of 52 =O
5/10 of 50 =U
3/5 of 45 =D
4/5 of 50 =E
2/4 of 16 =H
4/6 of 21 =R
0/15 letters found
Clue 2

Order of operations

To unlock the museum's security camera log, you must solve a tricky multi-step code on the main computer terminal.

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

R
35
80
11
42
21
53
68
80
46
46
47
R
35
38
15
R
35
63
20
67
47
R
35
47
22
75
21
42
47
80
41
47
67
15
68
68
4 × 11 - 9 =R
12 × 9 - 28 =I
7 × 10 - 3 =W
11 × 7 - 9 =L
9 × 4 - 21 =A
5 + 2 × 3 =G
6 × 5 - 8 =O
6 + 2 × 7 =S
54 + 7 × 3 =N
48 + 5 × 3 =K
6 × 11 - 25 =C
10 × 6 - 22 =M
8 × 7 - 10 =P
9 × 7 - 21 =H
9 × 8 - 19 =F
10 × 5 - 3 =E
5 × 10 - 29 =T
0/17 letters found
Clue 3

Multiplication facts (1-12)

The thief ran through the ice block factory. You need to count the rows and columns of giant ice crates they knocked over.

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
8
49
100
T
8
49
70
100
11
49
70
132
11
28
27
144
6
16
49
70
2
70
2
60
16
25
27
T
8
32
70
60
49
T
8
4 × 2 =T
2 × 1 =N
7 × 10 =I
1 × 11 =F
6 × 10 =G
3 × 9 =O
12 × 12 =M
5 × 5 =P
7 × 4 =R
7 × 7 =H
10 × 10 =E
1 × 6 =A
2 × 8 =S
8 × 4 =L
12 × 11 =D
0/15 letters found
Clue 4

Rounding

The suspect's thermal tracker signal is fuzzy. The radar screen can only show the distance rounded to the nearest ten miles.

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
70
2000
700
2300
170
900
50
9000
170
500
300
230
1300
3000
50
A
70
1100
20
50
500
2000
1100
200
170
900
1100
300
1100
20
50
2300
170
50
Round 72 to the nearest tenA
Round 228 to the nearest tenW
Round 727 to the nearest hundredL
Round 464 to the nearest hundredR
Round 50 to the nearest tenE
Round 203 to the nearest hundredU
Round 2,765 to the nearest thousandF
Round 1,739 to the nearest thousandS
Round 340 to the nearest hundredO
Round 905 to the nearest hundredK
Round 1,260 to the nearest hundredN
Round 2,307 to the nearest hundredI
Round 8,987 to the nearest thousandD
Round 16 to the nearest tenH
Round 167 to the nearest tenC
Round 1,063 to the nearest hundredT
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

A group of young penguins found some dropped shiny loot. They want to split the treasure evenly so everyone gets a fair share.

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 ÷ 4 = ?
99 ÷ 9 = ?
60 ÷ 12 = ?
10 ÷ 10 = ?
60 ÷ 6 = ?
18 ÷ 9 = ?
64 ÷ 8 = ?
12 ÷ 2 = ?
63 ÷ 7 = ?
120 ÷ 10 = ?
49 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain blasted a hole with a laser beak, then slid down the steep hill like a turbo slider.
2.The villain fired a snow launcher to block the exit, then escaped into the freezing water as a deep diver.
3.The villain fired a snow launcher to block the exit, then tracked the escape path using a sonar clicker.
4.The villain blasted a hole with a laser beak, then escaped into the freezing water as a deep diver.
5.The villain swung over the security gate using a grappling hook, then navigated the dark sewer pipes with night vision.
6.The villain escaped on a rocket sled, then blocked the pursuit by building a quick ice wall.
7.The villain escaped on a rocket sled, then slid down the steep hill like a turbo slider.
8.The villain drilled through the vault with a glacier drill, then escaped into the freezing water as a deep diver.
9.The villain escaped on a rocket sled, then tracked the escape path using a sonar clicker.
10.The villain swung over the security gate using a grappling hook, then blocked the pursuit by building a quick ice wall.
11.The villain fired a snow launcher to block the exit, then blocked the pursuit by building a quick ice wall.
12.The villain fired a snow launcher to block the exit, then navigated the dark sewer pipes with night vision.
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 5-6
Theme
The Great Golden Anchovy Heist — set in Shiver City Museum of Art
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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