Math Mysteries
🏀 BasketballGrade 3Reading: grades 3-4AdditionMultiplicationSubtractionRoundingDivision

The Big Championship Heist

The golden All-Star Championship Trophy has vanished from the safe right before the final buzzer! A mysterious player snuck onto the court, bypassed the security system, and left a flat basketball in its place. Detective, we must find the Sneaker Bandit before the trophy is gone forever!

Suspects

Possible suspects

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

21 of 21 still in play
NameSig MoveLucky GearShooting HandHeadband ColorDefensive Play
Klay TNo Look PassSqueaky ShoesRight HandedNeon HeadbandDouble Team
Giannis ASky HookWrist BandsLeft HandedBlue HeadbandZone Defense
Bam AFast BreakGold WhistleRight HandedNeon HeadbandFull Court Press
LaMelo BFast BreakWrist BandsLeft HandedBlue HeadbandZone Defense
Kyrie INo Look PassHigh SocksLeft HandedNeon HeadbandDouble Team
Kevin DDouble ClutchGlow JerseyRight HandedRed HeadbandDouble Team
Anthony DSky HookHigh SocksLeft HandedNeon HeadbandZone Defense
Ja MFast BreakGlow JerseyRight HandedNeon HeadbandDouble Team
Draymond GFast BreakHigh SocksRight HandedNeon HeadbandDouble Team
James HFast BreakHigh SocksLeft HandedRed HeadbandDouble Team
Devin BSky HookSqueaky ShoesRight HandedRed HeadbandZone Defense
Steph CNo Look PassSqueaky ShoesLeft HandedRed HeadbandFull Court Press
Zion WSky HookWrist BandsLeft HandedNeon HeadbandDouble Team
Chris PDouble ClutchWrist BandsLeft HandedNeon HeadbandDouble Team
Kawhi LAlley OopWrist BandsLeft HandedNeon HeadbandDouble Team
Russell WNo Look PassGold WhistleLeft HandedRed HeadbandZone Defense
LeBron JAlley OopGlow JerseyLeft HandedBlue HeadbandDouble Team
Nikola JNo Look PassGlow JerseyLeft HandedNeon HeadbandDouble Team
Jimmy BNo Look PassHigh SocksRight HandedNeon HeadbandFull Court Press
Dearron FAlley OopGlow JerseyRight HandedBlue HeadbandDouble Team
Jayson TNo Look PassSqueaky ShoesLeft HandedRed HeadbandDouble Team
Clue 1

Addition

We need to count the missing practice jerseys left in the gym locker. Add the home team uniforms to the away team uniforms to unlock the first clue vault!

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
928
737
613
283
692
442
249
624
T
928
249
251
613
576
442
251
T
928
271
613
692
818
692
694
429
251
271
482
613
818
576
613
364
306 + 622 =T
180 + 249 =L
360 + 264 =I
261 + 221 =J
144 + 127 =W
456 + 362 =R
235 + 457 =A
170 + 113 =B
197 + 167 =Y
321 + 416 =H
388 + 225 =E
303 + 139 =N
367 + 209 =S
472 + 222 =G
130 + 121 =O
163 + 86 =D
0/16 letters found
Clue 2

Multiplication facts (1-12)

The cheerleaders are standing in neat rows on the main court. Multiply the number of rows by the dancers in each row to find the passcode for the security door.

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
40
3
11
84
45
84
50
11
99
T
40
84
3
56
T
40
4
100
96
132
45
50
84
4
6
T
40
3
T
40
3
11
14
11
64
T
40
3
100
55
77
10 × 4 =T
12 × 8 =R
6 × 1 =I
11 × 12 =M
7 × 12 =S
2 × 7 =L
10 × 10 =A
5 × 9 =U
8 × 8 =F
8 × 7 =O
11 × 7 =D
3 × 1 =H
2 × 2 =W
5 × 11 =N
5 × 10 =P
9 × 11 =C
1 × 11 =E
0/17 letters found
Clue 3

Subtraction

The scoreboards are showing different scores after the power outage. Subtract the visitor score from our high score to figure out which floor to search first.

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

S
876
340
101
112
201
112
791
824
466
653
340
517
340
201
742
517
791
466
653
791
890
170
517
253
340
645
614
368
201
517
253
1226 - 350 =S
609 - 92 =T
440 - 187 =H
910 - 20 =C
490 - 389 =N
663 - 197 =B
785 - 140 =I
394 - 26 =P
1039 - 297 =M
342 - 141 =A
345 - 233 =D
1102 - 311 =O
1020 - 367 =L
945 - 121 =U
704 - 364 =E
268 - 98 =K
879 - 265 =R
0/17 letters found
Clue 4

Rounding

A speed sensor caught a player dashing down the hallway. Round their exact speed to the nearest ten to activate the backup security cameras.

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
7000
900
600
200
5000
600
2000
T
7000
2000
500
40
500
3000
600
300
3000
900
600
500
6000
90
500
3000
6000
70
3000
900
500
80
80
Round 6,918 to the nearest thousandT
Round 859 to the nearest hundredH
Round 460 to the nearest hundredA
Round 560 to the nearest hundredE
Round 71 to the nearest tenI
Round 4,624 to the nearest thousandU
Round 316 to the nearest hundredO
Round 6,184 to the nearest thousandD
Round 41 to the nearest tenW
Round 93 to the nearest tenB
Round 237 to the nearest hundredG
Round 1,794 to the nearest thousandS
Round 3,412 to the nearest thousandN
Round 81 to the nearest tenL
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

The referee needs to share the sports drinks equally among all the starting players. Divide the total bottles by the players to open up the locker drawer.

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
14 ÷ 2 = ?
44 ÷ 11 = ?
10 ÷ 2 = ?
16 ÷ 8 = ?
66 ÷ 11 = ?
99 ÷ 11 = ?
48 ÷ 6 = ?
30 ÷ 3 = ?
2 ÷ 2 = ?
21 ÷ 7 = ?
72 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain slammed an awesome alley oop, then turned off their bright glow jersey.
2.The villain shot a high flying sky hook, then blew a loud shiny gold whistle.
3.The villain did a wild double clutch jump, then turned off their bright glow jersey.
4.The villain threw a sneaky no look pass, then pulled up their striped high socks.
5.The villain shot a high flying sky hook, then snapped a bright wrist band.
6.The villain shot a high flying sky hook, then squeaked away in loud sneakers.
7.The villain slammed an awesome alley oop, then snapped a bright wrist band.
8.The villain ran a super fast break, then squeaked away in loud sneakers.
9.The villain slammed an awesome alley oop, then blew a loud shiny gold whistle.
10.The villain did a wild double clutch jump, then squeaked away in loud sneakers.
11.The villain did a wild double clutch jump, then snapped a bright wrist band.
12.The villain slammed an awesome alley oop, then pulled up their striped high socks.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Addition, Multiplication, Subtraction, Rounding, Division
Reading level
grades 3-4
Theme
The Big Championship Heist — set in the Hoop Dome Arena
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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