🚀 SpaceGrade 5Reading: grades 3-4RoundingPlace valueAdditionSubtractionDivision

The Cosmic Code Sabotage

Oh no! A rogue astro-bot has scrambled the flight coordinates on the Starship Nebula-Nine! The Chief Officer of Star-Maps cannot guide the ship home without your help. We have a list of twenty-four space travelers on board, but one of them is the disguised rogue bot. Use your cosmic math skills to decode the clues and find the 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

Name	Jetpack Upgrades	Cosmic Gadgets	Oxygen Meter Placement	Spacesuit Helmet Visors	System Reboot Flaws
Stella Spark	Quantum Teleport Drive	Starlight Sensor Antenna	Right Shoulder Meter	Deep Purple Visor	Static Electricity
Mae Jemison	Magnetic Hover Pads	Plasma Torch Glove	Right Shoulder Meter	Neon Blue Visor	Static Electricity
Comet Cara	Super Rocket Boosters	Starlight Sensor Antenna	Right Shoulder Meter	Mirror Gold Visor	Intense Solar Flares
Dr Luna	Quantum Teleport Drive	Asteroid Cracker Grip	Left Shoulder Meter	Deep Purple Visor	Static Electricity
Captain Nova	Laser Mining Beam	Asteroid Cracker Grip	Left Shoulder Meter	Neon Blue Visor	Intense Solar Flares
Yuri Gagarin	Gravity Defier Boots	Asteroid Cracker Grip	Right Shoulder Meter	Deep Purple Visor	Stardust Dusting
Neil Armstrong	Quantum Teleport Drive	Plasma Torch Glove	Left Shoulder Meter	Deep Purple Visor	Static Electricity
Sally Ride	Magnetic Hover Pads	Freeze Beam Ray	Right Shoulder Meter	Mirror Gold Visor	Intense Solar Flares
John Glenn	Quantum Teleport Drive	Freeze Beam Ray	Right Shoulder Meter	Mirror Gold Visor	Intense Solar Flares
Kalpana Chawla	Laser Mining Beam	Asteroid Cracker Grip	Right Shoulder Meter	Neon Blue Visor	Stardust Dusting
Astro Leo	Magnetic Hover Pads	Freeze Beam Ray	Right Shoulder Meter	Deep Purple Visor	Static Electricity
Ranger Kira	Gravity Defier Boots	Asteroid Cracker Grip	Left Shoulder Meter	Mirror Gold Visor	Stardust Dusting
Orion Jax	Super Rocket Boosters	Plasma Torch Glove	Right Shoulder Meter	Mirror Gold Visor	Intense Solar Flares
Guy Bluford	Quantum Teleport Drive	Asteroid Cracker Grip	Right Shoulder Meter	Deep Purple Visor	Static Electricity
Nebula Ned	Super Rocket Boosters	Solar Ray Shield	Right Shoulder Meter	Neon Blue Visor	Static Electricity
Radar Roy	Laser Mining Beam	Starlight Sensor Antenna	Left Shoulder Meter	Mirror Gold Visor	Static Electricity
Buzz Aldrin	Laser Mining Beam	Starlight Sensor Antenna	Right Shoulder Meter	Neon Blue Visor	Static Electricity
Chris Hadfield	Gravity Defier Boots	Freeze Beam Ray	Right Shoulder Meter	Mirror Gold Visor	Static Electricity
Commander Sol	Quantum Teleport Drive	Solar Ray Shield	Right Shoulder Meter	Deep Purple Visor	Static Electricity
Valentina Tereshkova	Super Rocket Boosters	Solar Ray Shield	Right Shoulder Meter	Neon Blue Visor	Intense Solar Flares
Pilot Zephyr	Magnetic Hover Pads	Starlight Sensor Antenna	Right Shoulder Meter	Deep Purple Visor	Static Electricity

Clue 1

Rounding

The radar screen is fuzzy and only displays rounded numbers. Round the cosmic distance to see where the rogue bot was spotted.

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

4300

170

130

2900

1100

900

130

1100

4300

200

1100

130

2000

1100

4300

900

2000

130

290

3700

2900

130

2300

130

290

700

Round 4,274 to the nearest hundredT

Round 173 to the nearest tenH

Round 868 to the nearest hundredU

Round 92 to the nearest tenN

Round 2,304 to the nearest hundredZ

Round 691 to the nearest hundredM

Round 34 to the nearest tenB

Round 289 to the nearest tenA

Round 248 to the nearest hundredD

Round 2,872 to the nearest hundredR

Round 3,675 to the nearest hundredF

Round 20 to the nearest tenG

Round 1,119 to the nearest hundredO

Round 133 to the nearest tenE

Round 2,184 to the nearest thousandS

0/15 letters found

Clue 2

Place value

The ship computer has a digit code based on place value. Find the hidden number to unlock the second camera log.

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

7000

4000

2000

1000

900

4000

7000

5000

4000

6000

8000

2000

1000

600

2000

7000

2000

1000

6000

400

5000

4000

2000

5000

300

1000

900

4000

7000

What is the value of the 7 in 267,138?T

What is the value of the 4 in 263,450?A

What is the value of the 1 in 734,415?I

What is the value of the 8 in 48,604?D

What is the value of the 5 in 15,793?S

What is the value of the 3 in 777,320?B

What is the value of the 5 in 83,357?U

What is the value of the 3 in 69,439?O

What is the value of the 6 in 80,622?M

What is the value of the 6 in 19,364?F

What is the value of the 1 in 441,995?R

What is the value of the 9 in 68,936?G

What is the value of the 2 in 92,050?E

What is the value of the 6 in 136,884?L

What is the value of the 4 in 24,098?H

0/15 letters found

Clue 3

Addition

The captain counts the total number of energy batteries on the cargo deck. Add the supplies together to unlock the next file.

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

8648

7263

9380

7263

9557

9355

5870

7178

5870

9355

7263

4750

9557

9355

9557

7263

7574

9355

4008

7178

8648

7263

6647

5870

5014

4008

7263

4359

4008

2559

8145

4056 + 4592 =S

6532 + 2823 =C

3699 + 4446 =N

3802 + 2068 =E

4858 + 2320 =L

2340 + 2019 =D

2668 + 2346 =B

1679 + 3071 =R

6080 + 3300 =A

2705 + 4558 =T

1490 + 1069 =W

1673 + 2335 =O

4281 + 2366 =H

3851 + 3723 =Y

6189 + 3368 =I

0/15 letters found

Clue 4

Subtraction

A fuel leak drained some power cells from our reserve tank. Subtract the lost fuel to find out how much power is left.

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

7378

3872

6127

5790

7390

6127

6441

3872

3824

6441

7773

3194

8901

7386

4805

3872

7390

3194

1085

8277

3872

3583

3872

3194

11312 - 3934 =D

6230 - 2406 =G

9137 - 4332 =V

7914 - 1473 =L

9128 - 3338 =U

8052 - 1925 =P

5853 - 4768 =T

11243 - 2342 =C

3910 - 38 =E

4622 - 1039 =Y

7020 - 3826 =S

11670 - 4280 =R

11011 - 3238 =A

9442 - 1165 =H

11251 - 3865 =O

0/15 letters found

Clue 5

Division facts (1-12) — the last clue

The crew splits the star-maps into equal groups for the search teams. Divide the maps to find the final coordinate.

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

132 ÷ 11 = ?

16 ÷ 2 = ?

90 ÷ 10 = ?

50 ÷ 5 = ?

35 ÷ 7 = ?

56 ÷ 8 = ?

20 ÷ 10 = ?

121 ÷ 11 = ?

8 ÷ 2 = ?

33 ÷ 11 = ?

12 ÷ 2 = ?

Step 2 — cross out the sentence with each answer

1.The villain teleports through security shields, then scans for guards using a starlight antenna.

2.The villain blasts off with super rocket boosters, then freezes control panels with a cold beam.

3.The villain teleports through security shields, then melts the locks using a plasma glove.

4.The villain blasts off with super rocket boosters, then scans for guards using a starlight antenna.

5.The villain floats over walls with gravity boots, then melts the locks using a plasma glove.

6.The villain blasts off with super rocket boosters, then blocks pursuit with a solar shield.

7.The villain floats over walls with gravity boots, then smashes escape hatches with a heavy grip.

8.The villain skates silently on magnetic pads, then scans for guards using a starlight antenna.

9.The villain teleports through security shields, then smashes escape hatches with a heavy grip.

10.The villain skates silently on magnetic pads, then freezes control panels with a cold beam.

11.The villain floats over walls with gravity boots, then blocks pursuit with a solar shield.

12.The villain teleports through security shields, then blocks pursuit with a solar shield.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Cosmic Code Sabotage

Culprit: Stella Spark (Quantum Teleport Drive · Starlight Sensor Antenna · Right Shoulder Meter · Deep Purple Visor · Static Electricity)

Clue 1 (Rounding): "THE ROGUE BOT DOES NOT USE A FREEZE BEAM"
Round 4,274 to the nearest hundred = 4300 (T) · Round 173 to the nearest ten = 170 (H) · Round 868 to the nearest hundred = 900 (U) · Round 92 to the nearest ten = 90 (N) · Round 2,304 to the nearest hundred = 2300 (Z) · Round 691 to the nearest hundred = 700 (M) · Round 34 to the nearest ten = 30 (B) · Round 289 to the nearest ten = 290 (A) · Round 248 to the nearest hundred = 200 (D) · Round 2,872 to the nearest hundred = 2900 (R) · Round 3,675 to the nearest hundred = 3700 (F) · Round 20 to the nearest ten = 20 (G) · Round 1,119 to the nearest hundred = 1100 (O) · Round 133 to the nearest ten = 130 (E) · Round 2,184 to the nearest thousand = 2000 (S)
Clue 2 (Place value): "THE RIGHT SHOULDER METER FLASHES BRIGHT"
What is the value of the 7 in 267,138? = 7000 (T) · What is the value of the 4 in 263,450? = 400 (A) · What is the value of the 1 in 734,415? = 10 (I) · What is the value of the 8 in 48,604? = 8000 (D) · What is the value of the 5 in 15,793? = 5000 (S) · What is the value of the 3 in 777,320? = 300 (B) · What is the value of the 5 in 83,357? = 50 (U) · What is the value of the 3 in 69,439? = 30 (O) · What is the value of the 6 in 80,622? = 600 (M) · What is the value of the 6 in 19,364? = 60 (F) · What is the value of the 1 in 441,995? = 1000 (R) · What is the value of the 9 in 68,936? = 900 (G) · What is the value of the 2 in 92,050? = 2000 (E) · What is the value of the 6 in 136,884? = 6000 (L) · What is the value of the 4 in 24,098? = 4000 (H)
Clue 3 (Addition): "STATIC ELECTRICITY COOLS THE BOT DOWN"
4056 + 4592 = 8648 (S) · 6532 + 2823 = 9355 (C) · 3699 + 4446 = 8145 (N) · 3802 + 2068 = 5870 (E) · 4858 + 2320 = 7178 (L) · 2340 + 2019 = 4359 (D) · 2668 + 2346 = 5014 (B) · 1679 + 3071 = 4750 (R) · 6080 + 3300 = 9380 (A) · 2705 + 4558 = 7263 (T) · 1490 + 1069 = 2559 (W) · 1673 + 2335 = 4008 (O) · 4281 + 2366 = 6647 (H) · 3851 + 3723 = 7574 (Y) · 6189 + 3368 = 9557 (I)
Clue 4 (Subtraction): "DEEP PURPLE GLASS COVERS THE EYES"
11312 - 3934 = 7378 (D) · 6230 - 2406 = 3824 (G) · 9137 - 4332 = 4805 (V) · 7914 - 1473 = 6441 (L) · 9128 - 3338 = 5790 (U) · 8052 - 1925 = 6127 (P) · 5853 - 4768 = 1085 (T) · 11243 - 2342 = 8901 (C) · 3910 - 38 = 3872 (E) · 4622 - 1039 = 3583 (Y) · 7020 - 3826 = 3194 (S) · 11670 - 4280 = 7390 (R) · 11011 - 3238 = 7773 (A) · 9442 - 1165 = 8277 (H) · 11251 - 3865 = 7386 (O)
Clue 5 (Division facts (1-12)): surviving statement (box 1) → Stella Spark
132 ÷ 11 = 12 · 16 ÷ 2 = 8 · 90 ÷ 10 = 9 · 50 ÷ 5 = 10 · 35 ÷ 7 = 5 · 56 ÷ 8 = 7 · 20 ÷ 10 = 2 · 121 ÷ 11 = 11 · 8 ÷ 2 = 4 · 33 ÷ 11 = 3 · 12 ÷ 2 = 6

About this mystery

Grade level: Grade 5 math
Math topics: Rounding, Place value, Addition, Subtraction, Division
Reading level: grades 3-4
Theme: The Cosmic Code Sabotage — set in The Starship Nebula-Nine
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

More free printable math mysteries

5th grade worksheets Addition worksheets Subtraction worksheets Division worksheets Rounding worksheets Place value worksheets All worksheets →

The Mystery of the Missing Debut Vinyl

Grade 5

The Redstone Rogue

Grade 5

Mystery of the Sky Academy Thief

Grade 5

The Cretaceous Fossil Caper

Grade 5