Math Mysteries
🦕 DinosaursGrade 6Reading: grades 5-6Place valuePercentagesExponentsOrder of operationsDivision

The Great Golden Egg Heist

A rogue agent has sneaked into the Prehistoric Preservation Sanctuary, deactivated the security fences, and snatched the ultra-rare golden T-Rex egg! The Hatchery is in lockdown, and the Paleo Patrol needs your help to crack the codes, track the clues, and stop the Dino-Snatcher before the egg hatches!

Suspects

Possible suspects

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

21 of 21 still in play
NameDino AbilityScouting GearDominant HandHair ColorSecret Fear
Roy AndrewsT-Rex RoarSonic WhistleRight HandedJungle GreenLoud Clapping
Steve BrusatteT-Rex RoarWalkie TalkieLeft HandedFossil GrayLoud Clapping
Sue HendricksonT-Rex RoarThermal SensorLeft HandedVolcanic RedShiny Fossils
Gideon MantellT-Rex RoarLaser PointerRight HandedFossil GrayLoud Clapping
Rex MorganPterodactyl FlightWalkie TalkieRight HandedFossil GrayShiny Fossils
Ellie SattlerRaptor SpeedWalkie TalkieLeft HandedJungle GreenFresh Jungle Leaves
Othniel MarshT-Rex RoarSonic WhistleRight HandedFossil GrayLoud Clapping
Patricia VickersT-Rex RoarThermal SensorRight HandedFossil GrayLoud Clapping
Sarah HardingTriceratops ShieldSonic WhistleLeft HandedFossil GrayShiny Fossils
Ian MalcolmTriceratops ShieldThermal SensorRight HandedJungle GreenShiny Fossils
William BucklandTriceratops ShieldThermal SensorRight HandedJungle GreenLoud Clapping
Jack HornerTriceratops ShieldWalkie TalkieRight HandedFossil GrayShiny Fossils
John HammondTriceratops ShieldThermal SensorRight HandedFossil GrayLoud Clapping
Barnum BrownT-Rex RoarWalkie TalkieRight HandedFossil GrayFresh Jungle Leaves
Mary AnningRaptor SpeedThermal SensorLeft HandedFossil GrayFresh Jungle Leaves
Luis AlvarezRaptor SpeedSonic WhistleLeft HandedVolcanic RedShiny Fossils
Edward CopeRaptor SpeedWalkie TalkieRight HandedVolcanic RedLoud Clapping
Karen ChinRaptor SpeedSonic WhistleRight HandedFossil GrayLoud Clapping
Dong ZhimingT-Rex RoarWalkie TalkieLeft HandedVolcanic RedFresh Jungle Leaves
Charles KnightRaptor SpeedThermal SensorLeft HandedFossil GrayShiny Fossils
Alan GrantT-Rex RoarNight Vision GogglesRight HandedFossil GrayFresh Jungle Leaves
Clue 1

Place value

The security panel at the Hatchery needs us to find the value of the digit in the tens place to unlock the system logs.

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
500
900
60
50
70
30
30
4000
70
1000
40
100
60
300
1000
100
T
500
90
300
60
4000
30
4000
300
60
8000
10
100
70
1000
T
500
60
8000
What is the value of the 5 in 833,521?T
What is the value of the 1 in 25,619?P
What is the value of the 8 in 958,527?R
What is the value of the 5 in 338,650?V
What is the value of the 3 in 67,328?S
What is the value of the 9 in 527,935?H
What is the value of the 7 in 902,972?I
What is the value of the 9 in 686,295?U
What is the value of the 6 in 15,860?E
What is the value of the 3 in 22,836?L
What is the value of the 4 in 54,956?A
What is the value of the 1 in 878,139?O
What is the value of the 1 in 201,998?N
What is the value of the 4 in 10,146?D
0/14 letters found
Clue 2

Percentages

Our drone scanned the fossil warehouse and needs us to calculate what percentage of the supply crates have been tampered with.

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
4
24
28
23
45
42
24
T
4
24
36
39
16
28
16
T
4
13
13
27
18
36
12
16
23
13
15
15
28
16
39
28
36
23
35
2
50% of 8 =T
5% of 300 =P
75% of 24 =W
20% of 175 =B
50% of 78 =N
5% of 40 =Y
20% of 65 =O
10% of 120 =S
50% of 56 =E
60% of 45 =L
10% of 420 =G
5% of 320 =D
5% of 460 =R
5% of 900 =I
10% of 360 =A
5% of 480 =H
0/16 letters found
Clue 3

Exponents

The geothermal power grid is rising fast, and we must solve the exponential power increase to keep the hatchery incubators safe.

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
125
36
289
49
324
32
36
A
125
64
64
361
169
121
196
289
49
169
324
196
32
A
125
4
25
324
8
243
25
128
A
125
324
121
49
400
5^3 =A
20^2 =Y
18^2 =D
11^2 =G
2^2 =R
2^5 =C
19^2 =I
8^2 =P
5^2 =E
17^2 =O
6^2 =L
2^7 =B
3^5 =H
14^2 =S
2^3 =T
13^2 =N
7^2 =U
0/17 letters found
Clue 4

Order of operations

A scrambled code on the laboratory screen requires us to follow the strict order of operations to reveal the security camera footage.

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
14
72
71
21
A
14
66
31
74
54
54
74
72
72
39
35
51
21
A
14
43
65
A
14
39
21
9
A
14
72
74
66
71
65
67
79
A
14
51
67
6 + 4 × 2 =A
6 × 6 - 5 =D
4 × 11 - 9 =L
58 + 7 × 2 =S
5 + 2 × 8 =R
7 × 11 - 10 =E
9 × 7 - 24 =I
11 × 7 - 23 =F
29 + 6 × 6 =H
10 × 7 - 19 =G
9 × 8 - 6 =N
12 × 8 - 25 =T
1 + 4 × 2 =W
53 + 7 × 3 =O
58 + 7 × 3 =C
11 × 4 - 1 =Y
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

We need to divide the remaining dino tracker badges equally among the team members to map out the final search grid.

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
48 ÷ 6 = ?
40 ÷ 4 = ?
70 ÷ 10 = ?
20 ÷ 5 = ?
30 ÷ 10 = ?
9 ÷ 1 = ?
144 ÷ 12 = ?
20 ÷ 10 = ?
77 ÷ 7 = ?
10 ÷ 10 = ?
72 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain smashed through the reinforced door, then blew a high pitched sonic whistle.
2.The villain dashed past the security gates, then scanned the room with night vision goggles.
3.The villain raised a heavy bone shield, then whispered into a silver walkie talkie.
4.The villain dashed past the security gates, then whispered into a silver walkie talkie.
5.The villain dashed past the security gates, then blew a high pitched sonic whistle.
6.The villain raised a heavy bone shield, then blew a high pitched sonic whistle.
7.The villain unleashed a deafening roar, then blew a high pitched sonic whistle.
8.The villain unleashed a deafening roar, then tracked the path with a thermal sensor.
9.The villain soared over the canopy walls, then tracked the path with a thermal sensor.
10.The villain raised a heavy bone shield, then tracked the path with a thermal sensor.
11.The villain dashed past the security gates, then pointed the way with a bright laser pointer.
12.The villain smashed through the reinforced door, then pointed the way with a bright laser pointer.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 6 math
Math topics
Place value, Percentages, Exponents, Order of operations, Division
Reading level
grades 5-6
Theme
The Great Golden Egg Heist — set in The Prehistoric Preservation Sanctuary
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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