🚀 Dinosaurs, Space, Soccer, RoGrade 4Reading: grades 3-4Skip countingRoundingAdditionSubtractionDivision

The Case of the Missing Cosmic Cup

Just minutes before the championship match of the Space Dino Soccer League, someone sneaked into the team locker room and snatched the golden Cosmic Cup! Detectives must review the stadium clues to catch the villain.

Suspects

Possible suspects

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

21 of 21 still in play

Name	Main Soccer Move	Special Gear	Kicking Foot	Dino Feature	Distraction
Astro Pterodactyl	Laser Dribble	Hologram Trap	Right footed	Silver helmet	Catnip spray
Rex Comet	Rocket Pass	Sonic Whistle	Right footed	Silver helmet	Squeaky toy
Brachio Bot	Rocket Pass	Turbo Boots	Left footed	Silver helmet	Catnip spray
Tricera Tech	Meteor Kick	Magnet Glove	Right footed	Green scales	Laser pointer
Titan Spike	Rocket Pass	Turbo Boots	Left footed	Green scales	Catnip spray
Matrix Maiasaura	Jetpack Dash	Turbo Boots	Left footed	Purple crest	Catnip spray
Dynamo Dino	Rocket Pass	Hologram Trap	Left footed	Silver helmet	Catnip spray
Robo Raptor	Jetpack Dash	Plasma Shield	Left footed	Purple crest	Catnip spray
Comet Crusher	Gravity Flip	Hologram Trap	Right footed	Purple crest	Squeaky toy
Turbo Raptor	Laser Dribble	Plasma Shield	Left footed	Silver helmet	Laser pointer
Cosmo Claw	Meteor Kick	Plasma Shield	Left footed	Silver helmet	Catnip spray
Circuit Ankylo	Jetpack Dash	Turbo Boots	Left footed	Silver helmet	Catnip spray
Pixel Parasaur	Gravity Flip	Turbo Boots	Right footed	Green scales	Laser pointer
Laser Lizard	Jetpack Dash	Hologram Trap	Right footed	Green scales	Squeaky toy
Pulsar Ptero	Rocket Pass	Hologram Trap	Left footed	Green scales	Squeaky toy
Quasar Quad	Meteor Kick	Magnet Glove	Left footed	Silver helmet	Catnip spray
Sparky Spino	Laser Dribble	Magnet Glove	Right footed	Purple crest	Squeaky toy
Orbit Dino	Rocket Pass	Plasma Shield	Left footed	Green scales	Laser pointer
Radar Rex	Meteor Kick	Sonic Whistle	Right footed	Purple crest	Laser pointer
Nova Dino	Gravity Flip	Sonic Whistle	Left footed	Purple crest	Squeaky toy
Stego Star	Laser Dribble	Turbo Boots	Left footed	Purple crest	Squeaky toy

Clue 1

Skip counting

The stadium security lights pulse in steady groups along the runway. Skip counting the blinks unlocks our 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.

110

100

110

Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45T

Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120S

Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45O

Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33G

Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35U

Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110I

Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26H

Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10M

Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32N

Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30E

Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48D

Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55A

Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60L

Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130V

0/14 letters found

Clue 2

Rounding

The digital scoreboard radar only shows player speeds rounded to the nearest ten. Rounding the numbers decodes the second 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.

3000

3700

110

1100

3700

9000

130

1300

700

170

370

290

110

1300

290

500

200

430

200

Round 93 to the nearest tenT

Round 2,877 to the nearest thousandU

Round 168 to the nearest tenA

Round 114 to the nearest tenF

Round 26 to the nearest tenH

Round 8,617 to the nearest thousandN

Round 286 to the nearest tenE

Round 374 to the nearest tenL

Round 1,296 to the nearest hundredO

Round 1,089 to the nearest hundredP

Round 739 to the nearest hundredW

Round 430 to the nearest tenC

Round 208 to the nearest hundredK

Round 3,702 to the nearest hundredR

Round 500 to the nearest hundredD

Round 24 to the nearest tenI

Round 129 to the nearest tenS

0/17 letters found

Clue 3

Addition

The referee tallied up all the extra training equipment used during practice. Adding the sets gives us our third 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.

3089

5784

4962

6716

4117

6669

4476

3210

3089

5213

7585

6669

3397

4117

6232

4117

4571

2399

5213

5205

7058

9233

4117

3089

6669

3210

5868

3397

5868

5213

4117

4571

1416 + 1673 =T

1668 + 731 =F

2611 + 2594 =O

3767 + 2902 =N

1136 + 2074 =I

2856 + 2928 =H

1819 + 4049 =P

2175 + 2787 =E

1112 + 2285 =S

2796 + 4262 =M

3042 + 1529 =Y

2123 + 3090 =R

2995 + 3237 =W

1344 + 2773 =A

3234 + 3482 =B

5965 + 3268 =C

3015 + 1461 =D

2740 + 4845 =U

0/18 letters found

Clue 4

Subtraction

The equipment manager checked how many space soccer balls remained after warmups. Subtracting the missing balls reveals the fourth 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.

4983

5572

6897

8976

1236

6155

8274

4983

2844

4883

1292

6155

6897

8468

6155

4883

1483

6155

2609

1236

8976

2844

1563

2609

7799

1563

2609

8468

6155

1236

7799

4983

2609

5994 - 1011 =S

9614 - 4042 =C

9737 - 761 =A

5874 - 3265 =T

3340 - 496 =I

10722 - 2448 =D

8172 - 1275 =R

5474 - 591 =L

5907 - 4424 =M

2139 - 903 =P

10523 - 2055 =H

3722 - 2159 =N

10034 - 2235 =O

9101 - 2946 =E

3050 - 1758 =V

0/15 letters found

Clue 5

Division facts (1-12) — the last clue

The head coach split the snack juice boxes evenly among the dino roster. Dividing the totals opens the final 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

84 ÷ 7 = ?

16 ÷ 8 = ?

21 ÷ 3 = ?

80 ÷ 10 = ?

44 ÷ 4 = ?

40 ÷ 10 = ?

36 ÷ 4 = ?

30 ÷ 5 = ?

15 ÷ 3 = ?

3 ÷ 3 = ?

60 ÷ 6 = ?

Step 2 — cross out the sentence with each answer

1.The villain blasted the ball skyward, then zipped past with turbo boots.

2.The villain zoomed across the pitch, then zipped past with turbo boots.

3.The villain blasted the ball skyward, then activated a plasma shield.

4.The villain blasted the ball skyward, then blew a sonic whistle.

5.The villain zoomed across the pitch, then projected a hologram trap.

6.The villain blasted the ball skyward, then grabbed metal with magnet gloves.

7.The villain launched a pass downfield, then zipped past with turbo boots.

8.The villain flipped the stadium gravity, then blew a sonic whistle.

9.The villain dribbled through defenses, then blew a sonic whistle.

10.The villain dribbled through defenses, then grabbed metal with magnet gloves.

11.The villain blasted the ball skyward, then projected a hologram trap.

12.The villain launched a pass downfield, then projected a hologram trap.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Case of the Missing Cosmic Cup

Culprit: Cosmo Claw (Meteor Kick · Plasma Shield · Left footed · Silver helmet · Catnip spray)

Clue 1 (Skip counting): "THE VILLAIN DOES NOT USE MAGNET GLOVE"
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (G) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (I) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (H) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (M) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (N) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (E) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60 = 40 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (V)
Clue 2 (Rounding): "TURF PRINTS SHOW A LEFT FOOTED KICK"
Round 93 to the nearest ten = 90 (T) · Round 2,877 to the nearest thousand = 3000 (U) · Round 168 to the nearest ten = 170 (A) · Round 114 to the nearest ten = 110 (F) · Round 26 to the nearest ten = 30 (H) · Round 8,617 to the nearest thousand = 9000 (N) · Round 286 to the nearest ten = 290 (E) · Round 374 to the nearest ten = 370 (L) · Round 1,296 to the nearest hundred = 1300 (O) · Round 1,089 to the nearest hundred = 1100 (P) · Round 739 to the nearest hundred = 700 (W) · Round 430 to the nearest ten = 430 (C) · Round 208 to the nearest hundred = 200 (K) · Round 3,702 to the nearest hundred = 3700 (R) · Round 500 to the nearest hundred = 500 (D) · Round 24 to the nearest ten = 20 (I) · Round 129 to the nearest ten = 130 (S)
Clue 3 (Addition): "THE BANDIT RUNS AWAY FROM CATNIP SPRAY"
1416 + 1673 = 3089 (T) · 1668 + 731 = 2399 (F) · 2611 + 2594 = 5205 (O) · 3767 + 2902 = 6669 (N) · 1136 + 2074 = 3210 (I) · 2856 + 2928 = 5784 (H) · 1819 + 4049 = 5868 (P) · 2175 + 2787 = 4962 (E) · 1112 + 2285 = 3397 (S) · 2796 + 4262 = 7058 (M) · 3042 + 1529 = 4571 (Y) · 2123 + 3090 = 5213 (R) · 2995 + 3237 = 6232 (W) · 1344 + 2773 = 4117 (A) · 3234 + 3482 = 6716 (B) · 5965 + 3268 = 9233 (C) · 3015 + 1461 = 4476 (D) · 2740 + 4845 = 7585 (U)
Clue 4 (Subtraction): "SCRAPED SILVER HELMET PAINT ON THE POST"
5994 - 1011 = 4983 (S) · 9614 - 4042 = 5572 (C) · 9737 - 761 = 8976 (A) · 5874 - 3265 = 2609 (T) · 3340 - 496 = 2844 (I) · 10722 - 2448 = 8274 (D) · 8172 - 1275 = 6897 (R) · 5474 - 591 = 4883 (L) · 5907 - 4424 = 1483 (M) · 2139 - 903 = 1236 (P) · 10523 - 2055 = 8468 (H) · 3722 - 2159 = 1563 (N) · 10034 - 2235 = 7799 (O) · 9101 - 2946 = 6155 (E) · 3050 - 1758 = 1292 (V)
Clue 5 (Division facts (1-12)): surviving statement (box 3) → Cosmo Claw
84 ÷ 7 = 12 · 16 ÷ 8 = 2 · 21 ÷ 3 = 7 · 80 ÷ 10 = 8 · 44 ÷ 4 = 11 · 40 ÷ 10 = 4 · 36 ÷ 4 = 9 · 30 ÷ 5 = 6 · 15 ÷ 3 = 5 · 3 ÷ 3 = 1 · 60 ÷ 6 = 10

About this mystery

Grade level: Grade 4 math
Math topics: Skip counting, Rounding, Addition, Subtraction, Division
Reading level: grades 3-4
Theme: The Case of the Missing Cosmic Cup — set in Meteor Stadium in Deep Space
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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