Math Mysteries
🚀 Space, Pirates, Unicorns, RoGrade 4Reading: grades 3-4Place valueAdditionSubtractionMultiplicationDivision

The Star-Hoop Hijack

The championship trophy of the Galactic Hoop League has been stolen! A sneaky Star-Snatcher bypassed the mecha-security, tricked the Arena Referee, and flew off into the cosmos. It is up to you to decode the clues, track down the thief, and save the tournament!

Suspects

Possible suspects

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

21 of 21 still in play
NameCyber-SkillSpace GearVisor TypeJetpack TrailSystem Glitch
Bouncer BotRocket DunkMecha HornGolden VisorNeon Pink SparksSqueaky Toy Sound
Pixel KittyPixel BlastNether SwordCyber GogglesGlitchy Green PixelsMagnetic Net
Meow JordanLaser DribbleYarn GrenadeGolden VisorStarlight Blue SmokeSqueaky Toy Sound
Gizmo GomezGravity HackHover BoardGolden VisorGlitchy Green PixelsMagnetic Net
Pegleg PipTeleport JumpHover BoardGolden VisorStarlight Blue SmokeSqueaky Toy Sound
Neon NovaRocket DunkRobo ClawCyber GogglesNeon Pink SparksSqueaky Toy Sound
Luna LoopPixel BlastHover BoardCyber GogglesGlitchy Green PixelsMagnetic Net
Salty WhiskersPixel BlastMecha HornGolden VisorNeon Pink SparksMagnetic Net
Laser LynxLaser DribbleMecha HornGolden VisorNeon Pink SparksSqueaky Toy Sound
Robo BarnabyLaser DribbleMecha HornGolden VisorGlitchy Green PixelsMagnetic Net
Mecha WhiskersLaser DribbleNether SwordCyber GogglesStarlight Blue SmokeSqueaky Toy Sound
Capn SparkyGravity HackYarn GrenadeGolden VisorGlitchy Green PixelsMagnetic Net
Astro MittensPixel BlastHover BoardCyber GogglesGlitchy Green PixelsWater Splash
Cosmo PawsRocket DunkMecha HornCyber GogglesGlitchy Green PixelsMagnetic Net
Coby CatPixel BlastHover BoardCyber GogglesNeon Pink SparksWater Splash
LeBron ClawsLaser DribbleHover BoardCyber GogglesGlitchy Green PixelsSqueaky Toy Sound
SprocketLaser DribbleMecha HornCyber GogglesNeon Pink SparksWater Splash
Sir PurrfectTeleport JumpMecha HornGolden VisorGlitchy Green PixelsMagnetic Net
Cyber ClawLaser DribbleYarn GrenadeGolden VisorGlitchy Green PixelsSqueaky Toy Sound
Rusty HookTeleport JumpYarn GrenadeGolden VisorGlitchy Green PixelsMagnetic Net
Goldie HornRocket DunkNether SwordCyber GogglesStarlight Blue SmokeSqueaky Toy Sound
Clue 1

Place value

The escape pod console has a digital keypad. We need to check the value of the hundreds digit to unlock the coordinates of the suspect's ship.

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
8000
2000
40
T
8000
2000
30
40
60
1000
100
40
10
70
100
T
8000
50
10
40
500
2000
100
90
40
900
600
100
500
900
1000
What is the value of the 8 in 78,193?T
What is the value of the 6 in 3,168?F
What is the value of the 5 in 9,452?U
What is the value of the 2 in 2,948?H
What is the value of the 3 in 9,730?I
What is the value of the 1 in 51,422?D
What is the value of the 9 in 4,981?R
What is the value of the 1 in 167?O
What is the value of the 5 in 4,574?A
What is the value of the 1 in 8,215?S
What is the value of the 7 in 3,478?N
What is the value of the 6 in 615?B
What is the value of the 9 in 196?V
What is the value of the 4 in 2,740?E
0/14 letters found
Clue 2

Addition

A team of repair droids is counting the lost space-energy cubes. Add up the power packs we found in the locker room to find where the thief went next.

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
5506
8549
5523
5969
7232
5969
9833
5523
2329
T
5506
8549
5017
3699
5017
5969
8549
5715
4063
9467
7074
6736
6710
3699
5523
4063
9892
5715
5969
6736
9107
2861 + 2645 =T
3072 + 2897 =S
4246 + 5221 =Y
1761 + 1938 =D
1669 + 3854 =E
3430 + 1587 =A
2068 + 1995 =N
2836 + 4238 =G
4869 + 4964 =P
2967 + 6925 =V
986 + 1343 =C
2447 + 4263 =L
5619 + 3488 =R
4877 + 2355 =U
2976 + 2739 =I
3971 + 2765 =O
3804 + 4745 =H
0/17 letters found
Clue 3

Subtraction

The pirate ship has a leak in its fuel tank! Subtract the lost fuel gallons from the total amount to find how far the suspect can fly.

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
4639
5163
2986
8565
T
4639
4852
6366
7959
2002
1918
1918
2986
2002
2545
2002
2545
2986
2027
2986
2255
2545
6366
T
4639
2002
1712
2545
6366
T
4639
6884 - 2245 =T
11045 - 3086 =V
5833 - 3915 =L
9565 - 4402 =R
6286 - 4259 =M
6849 - 1997 =H
5516 - 2530 =A
6679 - 4677 =I
2801 - 1089 =C
6370 - 4115 =G
9606 - 3240 =E
12226 - 3661 =P
3458 - 913 =N
0/13 letters found
Clue 4

Multiplication facts (1-12)

We found rows of mysterious glowing blocks stacked in the cargo hold. Multiply the rows by the blocks in each row to crack the security seal.

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

L
33
24
24
72
66
24
110
99
L
33
14
100
50
40
49
99
110
27
27
70
80
14
48
27
L
33
77
3 × 11 =L
10 × 5 =C
6 × 11 =F
11 × 7 =S
9 × 3 =E
7 × 2 =I
9 × 11 =G
7 × 7 =Y
10 × 10 =T
10 × 7 =N
4 × 12 =X
10 × 11 =R
8 × 10 =P
3 × 8 =O
5 × 8 =H
6 × 12 =K
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

The robot guards want to share their battery packs equally. Divide the total batteries among the squads to find the secret channel code.

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
27 ÷ 3 = ?
66 ÷ 6 = ?
12 ÷ 6 = ?
40 ÷ 5 = ?
4 ÷ 4 = ?
8 ÷ 2 = ?
144 ÷ 12 = ?
55 ÷ 11 = ?
30 ÷ 10 = ?
30 ÷ 5 = ?
110 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain teleported right past the guards, then swung a glowing nether sword.
2.The villain teleported right past the guards, then charged ahead with a mecha horn.
3.The villain blasted pixel blocks to make a path, then swung a glowing nether sword.
4.The villain blasted pixel blocks to make a path, then threw a wild yarn grenade.
5.The villain blasted pixel blocks to make a path, then charged ahead with a mecha horn.
6.The villain turned off gravity in the trophy room, then grabbed the prize with a robo claw.
7.The villain turned off gravity in the trophy room, then threw a wild yarn grenade.
8.The villain slammed a rocket dunk into the safe, then escaped on a fast hover board.
9.The villain dribbled a laser ball through the hoop, then charged ahead with a mecha horn.
10.The villain dribbled a laser ball through the hoop, then grabbed the prize with a robo claw.
11.The villain teleported right past the guards, then threw a wild yarn grenade.
12.The villain slammed a rocket dunk into the safe, then swung a glowing nether sword.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Place value, Addition, Subtraction, Multiplication, Division
Reading level
grades 3-4
Theme
The Star-Hoop Hijack — set in The Star-Hoop Arena in deep orbit
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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