Math Mysteries
🚀 Soccer, Dinosaurs, SpaceGrade 2Reading: grades 3-4RoundingPlace valueAdditionSubtractionMissing addends

The Great Moon Cup Mystery

Someone popped the Golden Championship Star-Ball right before the Galactic Dino-Cup finals! The Head Referee needs your help to scan the roster 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
NameSuper MoveSpace GearKicking FootDino CrestFending Gear
Mia Hamm-SaurusVolcano SlideJetpack TailLeft-FootedSmooth ScalesFlashlight Beam
Raptor KaneGravity-Float HookSolar BackpackLeft-FootedSpiked CrestMagnet Goal
Marta-MegalosVolcano SlideGlow-Glove MittsRight-FootedFeathered ManeFlashlight Beam
Rooney-RaptorAsteroid HeaderThruster BootsLeft-FootedSmooth ScalesMagnet Goal
Suarez-SpikeAsteroid HeaderSolar BackpackRight-FootedSmooth ScalesMagnet Goal
Tricera-RonaldoGravity-Float HookGlow-Glove MittsLeft-FootedSpiked CrestFlashlight Beam
Haaland-HeavyAsteroid HeaderSolar BackpackLeft-FootedSmooth ScalesFlashlight Beam
Stego-SalahVolcano SlideRadar GogglesLeft-FootedSpiked CrestFlashlight Beam
Orbit-TopsGravity-Float HookJetpack TailRight-FootedSmooth ScalesFlashlight Beam
Saurus-SonTail-Slam KickGlow-Glove MittsLeft-FootedSmooth ScalesFlashlight Beam
Pulisic-PusMeteor DashSolar BackpackLeft-FootedFeathered ManeSqueaky Toy
Yoshi-StarVolcano SlideSolar BackpackRight-FootedFeathered ManeFlashlight Beam
Rapinoe-RaptorAsteroid HeaderThruster BootsRight-FootedSmooth ScalesMagnet Goal
Cosmo-RexMeteor DashThruster BootsLeft-FootedSmooth ScalesFlashlight Beam
Comet-ClawMeteor DashJetpack TailLeft-FootedSmooth ScalesFlashlight Beam
Bronto-BeckhamTail-Slam KickThruster BootsRight-FootedSmooth ScalesMagnet Goal
Dembele-DinoGravity-Float HookRadar GogglesLeft-FootedFeathered ManeMagnet Goal
Neymar-SaurusAsteroid HeaderJetpack TailRight-FootedSpiked CrestMagnet Goal
Mbappe-RexGravity-Float HookThruster BootsLeft-FootedSpiked CrestSqueaky Toy
Alex Morgan-StegMeteor DashThruster BootsRight-FootedSmooth ScalesMagnet Goal
Bale-AnodonTail-Slam KickRadar GogglesRight-FootedFeathered ManeSqueaky Toy
Clue 1

Rounding

The stadium radar only shows rounded numbers. We rounded the velocity of the suspect's getaway rocket to find the 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.

T
30
500
90
60
800
60
70
90
300
T
30
400
900
90
60
600
900
T
30
80
90
20
200
20
60
900
40
20
200
50
20
300
700
70
20
300
700
Round 32 to the nearest tenT
Round 48 to the nearest tenB
Round 297 to the nearest hundredC
Round 667 to the nearest hundredK
Round 538 to the nearest hundredH
Round 61 to the nearest tenS
Round 398 to the nearest hundredD
Round 87 to the nearest tenE
Round 69 to the nearest tenP
Round 551 to the nearest hundredN
Round 80 to the nearest tenW
Round 209 to the nearest hundredR
Round 43 to the nearest tenL
Round 827 to the nearest hundredU
Round 17 to the nearest tenA
Round 896 to the nearest hundredO
0/16 letters found
Clue 2

Place value

The locker room door lock uses place value codes. We figured out the tens digit of the suspect's jersey number to get inside.

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
63
81
50
28
50
29
T
63
29
30
30
T
63
28
50
78
57
50
14
78
35
50
50
34
50
43
59
43
78
T
63
50
43
T
63
43
78
59
50
What number has 6 tens and 3 ones?T
What number has 1 ten and 4 ones?S
What number has 5 tens and 0 ones?E
What number has 2 tens and 8 ones?L
What number has 7 tens and 8 ones?A
What number has 4 tens and 3 ones?R
What number has 5 tens and 7 ones?V
What number has 3 tens and 0 ones?O
What number has 3 tens and 5 ones?D
What number has 5 tens and 9 ones?C
What number has 2 tens and 9 ones?F
What number has 3 tens and 4 ones?P
What number has 8 tens and 1 one?H
0/13 letters found
Clue 3

Addition

The assistant referee tallied up all the cosmic soccer balls left on the practice field. Adding them together revealed a 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.

A
31
96
64
61
72
78
40
50
27
A
31
52
78
27
61
72
78
40
96
86
A
31
46
52
40
74
71
71
86
87
40
78
86
98
61
27
27
A
31
61
65
10 + 21 =A
35 + 51 =E
22 + 18 =T
26 + 45 =P
29 + 21 =F
33 + 31 =R
27 + 38 =N
16 + 11 =L
34 + 44 =H
56 + 40 =B
60 + 27 =D
61 + 37 =V
15 + 37 =S
28 + 33 =I
27 + 19 =M
33 + 39 =G
30 + 44 =O
0/17 letters found
Clue 4

Subtraction

The defense robot checked the air pressure of the game balls. Subtracting the flat balls from the total gave us a 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.

G
19
55
16
56
43
70
G
19
48
27
16
16
57
54
48
75
14
55
36
48
48
75
67
14
73
36
34
57
54
36
73
16
48
57
39 - 20 =G
99 - 32 =R
42 - 8 =D
55 - 12 =I
52 - 4 =S
94 - 19 =C
90 - 33 =T
71 - 15 =W
47 - 20 =M
38 - 22 =O
76 - 3 =P
52 - 38 =A
78 - 24 =H
78 - 23 =L
50 - 14 =E
93 - 23 =N
0/16 letters found
Clue 5

Missing addends — the last clue

The team needed fifty moonberries for halftime snacks but only found thirty. Finding the missing amount gave us 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
1 + ___ = 3
2 + ___ = 12
1 + ___ = 12
4 + ___ = 16
7 + ___ = 10
3 + ___ = 7
3 + ___ = 12
7 + ___ = 8
1 + ___ = 7
8 + ___ = 13
7 + ___ = 14
Step 2 — cross out the sentence with each answer
1.The villain headed the ball into orbit, then charged their battery under the star.
2.The villain slid across the cosmic dust, then wagged a heavy jetpack tail.
3.The villain slammed the ball with a spiked tail, then wagged a heavy jetpack tail.
4.The villain headed the ball into orbit, then boosted away using thrusters.
5.The villain floated upside down to block a shot, then charged their battery under the star.
6.The villain slammed the ball with a spiked tail, then boosted away using thrusters.
7.The villain floated upside down to block a shot, then boosted away using thrusters.
8.The villain slammed the ball with a spiked tail, then left glowing glove marks on the ball.
9.The villain slid across the cosmic dust, then boosted away using thrusters.
10.The villain dashed past the defense like a rocket, then wagged a heavy jetpack tail.
11.The villain dashed past the defense like a rocket, then boosted away using thrusters.
12.The villain floated upside down to block a shot, then left glowing glove marks on the ball.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 2 math
Math topics
Rounding, Place value, Addition, Subtraction, Missing addends
Reading level
grades 3-4
Theme
The Great Moon Cup Mystery — set in the Zero-Gravity Crater Arena on the Moon of Pangaea-Prime
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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