Math Mysteries
🔎 Greek MythologyGrade 4Reading: grades 5-6MultiplicationRoundingSkip countingPlace valueDivision

The Theft of Olympus

Someone has stolen Zeus's golden thunderbolt right from the temple altar! The Headmaster needs your help to decode the clues and catch the rogue demigod before a cosmic storm is unleashed.

Suspects

Possible suspects

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

21 of 21 still in play
NameDivine GiftBlessingCarried ShieldHair StyleDistraction
IcarusSun BeamFlightSilver ShieldGolden CurlsSweet Honey
PolluxShadow TravelInvisibilityBronze ShieldGolden CurlsSweet Honey
BellerophonEarthquake SlamInvisibilitySilver ShieldDark BraidsLoud Music
AtalantaLightning ControlFlightBronze ShieldGolden CurlsSweet Honey
AndromedaWater WhipFlightSilver ShieldGolden CurlsShiny Gold
PerseusSun BeamInvisibilityBronze ShieldGolden CurlsShiny Gold
PenelopeSun BeamSuper SpeedBronze ShieldDark BraidsLoud Music
MidasEarthquake SlamMind ReadingBronze ShieldDark BraidsLoud Music
ParisSun BeamSuper SpeedSilver ShieldDark BraidsLoud Music
AriadneShadow TravelFlightSilver ShieldGolden CurlsSweet Honey
HelenEarthquake SlamMind ReadingBronze ShieldGolden CurlsSweet Honey
PsycheShadow TravelAnimal SpeechSilver ShieldFiery RedSweet Honey
HerculesEarthquake SlamInvisibilitySilver ShieldDark BraidsSweet Honey
PandoraEarthquake SlamAnimal SpeechSilver ShieldDark BraidsShiny Gold
AeneasSun BeamInvisibilitySilver ShieldGolden CurlsSweet Honey
OrpheusLightning ControlSuper SpeedSilver ShieldGolden CurlsShiny Gold
OdysseusShadow TravelMind ReadingSilver ShieldGolden CurlsSweet Honey
JasonLightning ControlFlightSilver ShieldGolden CurlsSweet Honey
HectorSun BeamSuper SpeedSilver ShieldDark BraidsSweet Honey
CassandraLightning ControlAnimal SpeechBronze ShieldFiery RedSweet Honey
CastorSun BeamSuper SpeedSilver ShieldDark BraidsShiny Gold
Clue 1

Multiplication facts (1-12)

We found a training field with rows of target dummies. Multiply the columns of targets to find the total and 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
25
64
50
90
22
36
36
16
22
11
44
5
50
60
11
5
T
25
64
16
90
50
54
22
11
44
48
50
16
44
22
11
120
5 × 5 =T
10 × 9 =V
10 × 12 =G
10 × 6 =S
1 × 11 =N
4 × 11 =D
4 × 9 =L
8 × 8 =H
5 × 10 =E
8 × 2 =A
5 × 1 =O
2 × 11 =I
4 × 12 =R
6 × 9 =M
0/14 letters found
Clue 2

Rounding

The magical compass is spinning wildly. Round the degree reading to the nearest ten so we can lock onto the runaway demigod.

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
430
110
130
20
1700
130
700
2900
290
290
2300
130
9000
2900
1300
110
2300
90
300
1300
2300
5000
3000
130
290
1300
110
2300
130
5000
9000
Round 428 to the nearest tenT
Round 127 to the nearest tenE
Round 1,332 to the nearest hundredS
Round 2,901 to the nearest hundredA
Round 3,025 to the nearest thousandV
Round 114 to the nearest tenH
Round 8,784 to the nearest thousandD
Round 89 to the nearest tenN
Round 286 to the nearest hundredY
Round 5,421 to the nearest thousandL
Round 658 to the nearest hundredC
Round 294 to the nearest tenR
Round 16 to the nearest tenF
Round 1,685 to the nearest hundredO
Round 2,335 to the nearest hundredI
0/15 letters found
Clue 3

Skip counting

To cross the stepping stones in Neptune's fountain, you must skip count by fours. Follow the pattern to reach the message on the other side.

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
33
36
65
T
33
36
70
65
39
45
42
25
65
10
10
50
65
65
T
33
36
42
22
65
140
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75E
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35V
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160Y
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48O
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70W
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55L
0/12 letters found
Clue 4

Place value

The secret combination lock on the temple door has three digit wheels. Identify the value of the hundreds place to crack it open.

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
7000
90
4000
8000
70
20
2000
700
8000
900
2000
90
20
5000
70
40
900
500
100
800
800
30
90
500
5000
90
20
90
What is the value of the 7 in 7,556?W
What is the value of the 4 in 4,063?F
What is the value of the 8 in 824?T
What is the value of the 7 in 973?U
What is the value of the 8 in 78,546?O
What is the value of the 5 in 592?S
What is the value of the 3 in 7,836?H
What is the value of the 2 in 2,555?D
What is the value of the 2 in 4,026?N
What is the value of the 7 in 3,766?G
What is the value of the 9 in 7,917?L
What is the value of the 4 in 849?R
What is the value of the 5 in 95,012?C
What is the value of the 9 in 6,597?E
What is the value of the 1 in 8,143?A
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

The centaurs are willing to share a secret note, but only if we divide their bundle of carrots equally among their five scouts.

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
24 ÷ 6 = ?
49 ÷ 7 = ?
132 ÷ 11 = ?
88 ÷ 8 = ?
15 ÷ 3 = ?
45 ÷ 5 = ?
24 ÷ 3 = ?
90 ÷ 9 = ?
60 ÷ 10 = ?
15 ÷ 5 = ?
8 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain summoned a crackling lightning bolt, then soared high into the clouds.
2.The villain conjured a giant water whip, then soared high into the clouds.
3.The villain summoned a crackling lightning bolt, then dashed off with super speed.
4.The villain blazed a blinding sun beam, then faded away using invisibility.
5.The villain vanished into a dark shadow portal, then chatted with a nearby owl.
6.The villain vanished into a dark shadow portal, then faded away using invisibility.
7.The villain blazed a blinding sun beam, then soared high into the clouds.
8.The villain vanished into a dark shadow portal, then tried to read your thoughts.
9.The villain blazed a blinding sun beam, then tried to read your thoughts.
10.The villain conjured a giant water whip, then faded away using invisibility.
11.The villain conjured a giant water whip, then tried to read your thoughts.
12.The villain vanished into a dark shadow portal, then soared high into the clouds.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Multiplication, Rounding, Skip counting, Place value, Division
Reading level
grades 5-6
Theme
The Theft of Olympus — set in Mount Olympus Academy
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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