🚀 Epic space battle with laserGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Great Starship Sabotage

An alarm is blaring across the Star Defender! Someone has sneaked into the high-security bay and stolen the legendary Hyper-Blaster. With the Asteroid Raiders attacking our fleet with heavy laser fire, we need that weapon back to save the galaxy. Find the rogue pilot before they escape!

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	primary blaster	shield system	pilot suit	visor color	blaster weakness
Tessa Warp	Fusion Ray	Force Bubble	Beta Suit	Laser Red	Magnet Force
Kael Orbit	Plasma Pulse	Mirror Shield	Alpha Suit	Neon Green	Magnet Force
Rigg Rocket	Proton Wave	Force Bubble	Beta Suit	Cosmic Blue	Water Mist
Titus Flare	Laser Cannon	Gravity Wave	Beta Suit	Neon Green	Magnet Force
Bolt Spark	Plasma Pulse	Nano Plating	Beta Suit	Cosmic Blue	Water Mist
Zane Gravity	Plasma Pulse	Nano Plating	Beta Suit	Neon Green	EMP Pulse
Jax Starbolt	Ion Blaster	Gravity Wave	Alpha Suit	Neon Green	Magnet Force
Niko Solar	Plasma Pulse	Force Bubble	Alpha Suit	Laser Red	EMP Pulse
Zara Zenith	Proton Wave	Force Bubble	Beta Suit	Laser Red	Magnet Force
Echo Sound	Ion Blaster	Gravity Wave	Beta Suit	Laser Red	Magnet Force
Orion Swift	Ion Blaster	Mirror Shield	Alpha Suit	Cosmic Blue	Water Mist
Cruz Photon	Proton Wave	Stealth Cloak	Beta Suit	Cosmic Blue	Water Mist
Zephyr Zoom	Ion Blaster	Nano Plating	Beta Suit	Laser Red	Water Mist
Lyra Nebula	Proton Wave	Mirror Shield	Alpha Suit	Laser Red	Water Mist
Leo Void	Fusion Ray	Force Bubble	Beta Suit	Cosmic Blue	EMP Pulse
Nova Flare	Proton Wave	Stealth Cloak	Alpha Suit	Laser Red	Water Mist
Selene Lunar	Proton Wave	Nano Plating	Alpha Suit	Cosmic Blue	Water Mist
Jett Blast	Laser Cannon	Nano Plating	Beta Suit	Cosmic Blue	Water Mist
Rex Pulsar	Laser Cannon	Nano Plating	Beta Suit	Laser Red	Water Mist
Kira Cosmic	Plasma Pulse	Stealth Cloak	Alpha Suit	Neon Green	Magnet Force
Veda Comet	Plasma Pulse	Mirror Shield	Beta Suit	Cosmic Blue	Water Mist

Clue 1

Rounding

Our long range scanner can only show rounded numbers. Let us look at the ship distance log to narrow down our first big 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.

900

9000

6000

300

200

9000

5000

4000

9000

2000

8000

3000

900

9000

700

200

Round 78 to the nearest tenT

Round 3,023 to the nearest thousandR

Round 38 to the nearest tenO

Round 4,034 to the nearest thousandU

Round 51 to the nearest tenI

Round 6,376 to the nearest thousandP

Round 8,357 to the nearest thousandM

Round 719 to the nearest hundredL

Round 313 to the nearest hundredY

Round 159 to the nearest hundredD

Round 854 to the nearest hundredH

Round 58 to the nearest tenS

Round 9,065 to the nearest thousandE

Round 1,666 to the nearest thousandA

Round 5,144 to the nearest thousandN

0/15 letters found

Clue 2

Addition

We need to add up all the spent laser battery packs left in the docking bay. The total count will unlock the pilot suit database.

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

764

541

252

852

924

299

924

852

299

252

764

252

505

764

252

299

924

269

252

764

924

746

499

553

764

503

553

304

734

764

368 + 396 =T

151 + 148 =D

127 + 177 =L

86 + 183 =B

444 + 302 =S

143 + 109 =E

311 + 242 =I

378 + 163 =H

187 + 318 =C

223 + 280 =P

291 + 561 =R

486 + 248 =O

614 + 310 =A

182 + 317 =U

0/14 letters found

Clue 3

Subtraction

The pirate ship drained some of our defense shield energy. If we subtract the leftover power from the starting total we can find the escape code.

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

899

381

570

724

820

650

330

825

570

825

135

189

820

570

411

330

820

411

692

330

570

825

570

135

724

330

820

249

724

381

820

1008 - 109 =W

1011 - 186 =S

940 - 290 =M

423 - 93 =I

689 - 308 =A

387 - 138 =G

474 - 339 =H

947 - 255 =U

441 - 252 =O

740 - 16 =E

1084 - 264 =R

590 - 179 =C

844 - 274 =T

0/13 letters found

Clue 4

Multiplication facts (1-12)

The starfighters are parked in neat grid rows inside the hangar. Multiply the rows by the columns to find the secret visor frequency!

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

121

132

12 × 6 =T

6 × 7 =E

12 × 4 =S

5 × 6 =H

8 × 10 =C

8 × 2 =O

8 × 5 =A

7 × 12 =G

1 × 3 =N

5 × 3 =I

2 × 3 =L

1 × 9 =B

2 × 4 =W

10 × 2 =U

7 × 9 =V

11 × 12 =M

11 × 11 =D

0/17 letters found

Clue 5

Division facts (1-12) — the last clue

We have to divide the remaining energy cells equally among the scout ships. Solving this share puzzle reveals the villain's final weakness.

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

45 ÷ 9 = ?

132 ÷ 12 = ?

12 ÷ 1 = ?

7 ÷ 7 = ?

24 ÷ 3 = ?

63 ÷ 7 = ?

24 ÷ 4 = ?

28 ÷ 4 = ?

9 ÷ 3 = ?

80 ÷ 8 = ?

20 ÷ 5 = ?

Step 2 — cross out the sentence with each answer

1.The villain fires a giant laser beam, then flies into a thick asteroid field.

2.The villain charges the plasma thrusters, then escapes through a secret wormhole.

3.The villain blasts the enemy shield, then warps to a far solar system.

4.The villain shoots a proton wave, then cloaks their ship from the radar.

5.The villain fires a giant laser beam, then escapes through a secret wormhole.

6.The villain shoots a proton wave, then escapes through a secret wormhole.

7.The villain charges the plasma thrusters, then warps to a far solar system.

8.The villain activates the fusion drive, then flies into a thick asteroid field.

9.The villain charges the plasma thrusters, then sneaks past the fleet guards.

10.The villain charges the plasma thrusters, then flies into a thick asteroid field.

11.The villain shoots a proton wave, then sneaks past the fleet guards.

12.The villain shoots a proton wave, then flies into a thick asteroid field.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Great Starship Sabotage

Culprit: Bolt Spark (Plasma Pulse · Nano Plating · Beta Suit · Cosmic Blue · Water Mist)

Clue 1 (Rounding): "THE SPY DOES NOT USE A MIRROR SHIELD"
Round 78 to the nearest ten = 80 (T) · Round 3,023 to the nearest thousand = 3000 (R) · Round 38 to the nearest ten = 40 (O) · Round 4,034 to the nearest thousand = 4000 (U) · Round 51 to the nearest ten = 50 (I) · Round 6,376 to the nearest thousand = 6000 (P) · Round 8,357 to the nearest thousand = 8000 (M) · Round 719 to the nearest hundred = 700 (L) · Round 313 to the nearest hundred = 300 (Y) · Round 159 to the nearest hundred = 200 (D) · Round 854 to the nearest hundred = 900 (H) · Round 58 to the nearest ten = 60 (S) · Round 9,065 to the nearest thousand = 9000 (E) · Round 1,666 to the nearest thousand = 2000 (A) · Round 5,144 to the nearest thousand = 5000 (N)
Clue 2 (Addition): "THE RADAR DETECTED A BETA SUIT PILOT"
368 + 396 = 764 (T) · 151 + 148 = 299 (D) · 127 + 177 = 304 (L) · 86 + 183 = 269 (B) · 444 + 302 = 746 (S) · 143 + 109 = 252 (E) · 311 + 242 = 553 (I) · 378 + 163 = 541 (H) · 187 + 318 = 505 (C) · 223 + 280 = 503 (P) · 291 + 561 = 852 (R) · 486 + 248 = 734 (O) · 614 + 310 = 924 (A) · 182 + 317 = 499 (U)
Clue 3 (Subtraction): "WATER MIST SHORT CIRCUITS THEIR GEAR"
1008 - 109 = 899 (W) · 1011 - 186 = 825 (S) · 940 - 290 = 650 (M) · 423 - 93 = 330 (I) · 689 - 308 = 381 (A) · 387 - 138 = 249 (G) · 474 - 339 = 135 (H) · 947 - 255 = 692 (U) · 441 - 252 = 189 (O) · 740 - 16 = 724 (E) · 1084 - 264 = 820 (R) · 590 - 179 = 411 (C) · 844 - 274 = 570 (T)
Clue 4 (Multiplication facts (1-12)): "THE EVIDENCE HAS A COSMIC BLUE GLOW"
12 × 6 = 72 (T) · 6 × 7 = 42 (E) · 12 × 4 = 48 (S) · 5 × 6 = 30 (H) · 8 × 10 = 80 (C) · 8 × 2 = 16 (O) · 8 × 5 = 40 (A) · 7 × 12 = 84 (G) · 1 × 3 = 3 (N) · 5 × 3 = 15 (I) · 2 × 3 = 6 (L) · 1 × 9 = 9 (B) · 2 × 4 = 8 (W) · 10 × 2 = 20 (U) · 7 × 9 = 63 (V) · 11 × 12 = 132 (M) · 11 × 11 = 121 (D)
Clue 5 (Division facts (1-12)): surviving statement (box 2) → Bolt Spark
45 ÷ 9 = 5 · 132 ÷ 12 = 11 · 12 ÷ 1 = 12 · 7 ÷ 7 = 1 · 24 ÷ 3 = 8 · 63 ÷ 7 = 9 · 24 ÷ 4 = 6 · 28 ÷ 4 = 7 · 9 ÷ 3 = 3 · 80 ÷ 8 = 10 · 20 ÷ 5 = 4

About this mystery

Grade level: Grade 3 math
Math topics: Rounding, Addition, Subtraction, Multiplication, Division
Reading level: grades 3-4
Theme: The Great Starship Sabotage — set in Nebula Sector Fleet Command
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects