Math Mysteries
🔎 Well They Just Said They DonGrade 5Reading: grades 5-6MultiplicationRoundingSkip countingPlace valueDivision

The Case of the Reluctant Contestants

Welcome to the Glittering Dome of Doom! Or, as our suspects call it, 'The Place We Were Dragged Into For No Reason.' Someone has locked the exit doors and hidden the host's golden microphone. The suspects are all standing around looking confused, annoyed, and constantly muttering that they don't know what is going on and they do not want to do this. We must find out who actually took the microphone so we can all go home!

Suspects

Possible suspects

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

21 of 21 still in play
NameVibeDistractionAccessoryHairstyleBribe
Muttering MarkClueless shrugDrinking free sodaRight-handed watchSpiky gelLoud buzzer noise
Puzzled PamGlaring at cameraSitting on floorRight-handed watchNeat partingComplimentary taxi
Weary WendySighing loudlySitting on floorLeft-handed watchSpiky gelComplimentary taxi
Doubtful DanClueless shrugDrinking free sodaRight-handed watchNeat partingComplimentary taxi
Shy SarahClueless shrugDrinking free sodaLeft-handed watchSpiky gelComplimentary taxi
Hasty HarryGlaring at cameraTaking a napLeft-handed watchSpiky gelLoud buzzer noise
Reluctant RitaSighing loudlyDrinking free sodaLeft-handed watchMessy bunLoud buzzer noise
Tired TimChecking phoneTaking a napLeft-handed watchNeat partingComplimentary taxi
Restless RoseGlaring at cameraTaking a napRight-handed watchNeat partingComplimentary taxi
Bored BellaSighing loudlyTaking a napRight-handed watchNeat partingLoud buzzer noise
Silent SallyGlaring at cameraDrafting complaintLeft-handed watchNeat partingComplimentary taxi
Moody MollySighing loudlyDrinking free sodaRight-handed watchSpiky gelLoud buzzer noise
Annoyed AbbyChecking phoneDrafting complaintLeft-handed watchNeat partingComplimentary taxi
Anxious AnnaGlaring at cameraDrafting complaintLeft-handed watchNeat partingFree pizza voucher
Yawning YannClueless shrugUntying shoesLeft-handed watchNeat partingComplimentary taxi
Passive PaulSighing loudlyTaking a napRight-handed watchSpiky gelComplimentary taxi
Gloomy GaryAsking to leaveSitting on floorLeft-handed watchNeat partingLoud buzzer noise
Indifferent IanClueless shrugTaking a napLeft-handed watchNeat partingComplimentary taxi
Boring BobAsking to leaveSitting on floorRight-handed watchMessy bunComplimentary taxi
Clueless ChrisSighing loudlyDrinking free sodaRight-handed watchSpiky gelFree pizza voucher
Frowning FionaAsking to leaveDrinking free sodaLeft-handed watchMessy bunComplimentary taxi
Clue 1

Multiplication facts (1-12)

We tried counting the rows of folding chairs the contestants were ignoring. Each row had the same number of chairs, making it easy to multiply.

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
8
64
84
108
28
3
3
60
28
6
28
9
6
96
T
8
2
6
T
8
50
28
6
90
9
64
96
84
9
2 × 4 =T
10 × 5 =Y
1 × 3 =L
1 × 2 =U
1 × 9 =S
8 × 8 =H
1 × 6 =N
4 × 7 =I
8 × 12 =O
5 × 12 =A
10 × 9 =G
9 × 12 =V
12 × 7 =E
0/13 letters found
Clue 2

Rounding

The stadium scoreboard was glitched and only showed the total time rounded to the nearest ten minutes.

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
1300
4300
200
1700
5000
900
1700
90
1100
20
1700
2900
900
7000
5000
900
20
200
2000
130
70
9000
290
230
1700
1100
4300
9000
2000
2000
2900
Round 1,297 to the nearest hundredL
Round 92 to the nearest tenC
Round 293 to the nearest tenB
Round 1,655 to the nearest hundredT
Round 23 to the nearest tenS
Round 129 to the nearest tenU
Round 6,969 to the nearest thousandP
Round 9,416 to the nearest thousandD
Round 74 to the nearest tenN
Round 943 to the nearest hundredA
Round 192 to the nearest hundredF
Round 5,206 to the nearest thousandW
Round 2,073 to the nearest thousandO
Round 229 to the nearest tenY
Round 1,136 to the nearest hundredH
Round 2,865 to the nearest hundredR
Round 4,305 to the nearest hundredE
0/17 letters found
Clue 3

Skip counting

The floor tiles had numbers on them, and the suspect escaped by stepping only on multiples of three.

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
33
24
65
27
15
14
30
T
33
8
14
T
33
55
27
36
70
42
25
65
60
15
14
T
33
9
T
33
24
65
90
8
140
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160B
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110C
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35P
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33Y
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21I
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42J
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75E
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48M
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90U
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50S
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30H
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65L
0/17 letters found
Clue 4

Place value

A digital safe in the lobby required us to look at the tens and hundreds digits of the security code to unlock the 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.

W
80
100
10
70
900
30
3000
8000
60
100
4000
10
100
1000
200
500
50
2000
200
4000
8000
7000
90
400
200
1000
70
40
20
What is the value of the 8 in 72,082?W
What is the value of the 5 in 42,257?Y
What is the value of the 7 in 693,374?O
What is the value of the 6 in 853,263?P
What is the value of the 5 in 139,546?L
What is the value of the 9 in 456,943?U
What is the value of the 8 in 28,417?A
What is the value of the 1 in 755,102?E
What is the value of the 2 in 892,513?S
What is the value of the 4 in 69,545?M
What is the value of the 4 in 20,483?H
What is the value of the 2 in 73,420?B
What is the value of the 1 in 580,614?F
What is the value of the 3 in 986,639?N
What is the value of the 3 in 43,462?D
What is the value of the 4 in 24,380?R
What is the value of the 1 in 61,207?C
What is the value of the 2 in 18,258?T
What is the value of the 7 in 217,903?I
What is the value of the 9 in 21,693?G
0/20 letters found
Clue 5

Division facts (1-12) — the last clue

We had to divide the leftover pizza slices equally among the tired crew members to get them to talk.

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
60 ÷ 5 = ?
50 ÷ 10 = ?
12 ÷ 12 = ?
27 ÷ 3 = ?
40 ÷ 4 = ?
48 ÷ 8 = ?
96 ÷ 12 = ?
3 ÷ 1 = ?
8 ÷ 2 = ?
56 ÷ 8 = ?
55 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain glares directly at the camera, then drafts a long email complaint.
2.The villain checks their phone constantly, then drafts a long email complaint.
3.The villain sighs extremely loudly, then unties both of their shoes.
4.The villain checks their phone constantly, then drinks three cans of free soda.
5.The villain shrugs cluelessly, then takes a very loud nap.
6.The villain sighs extremely loudly, then drafts a long email complaint.
7.The villain asks how to leave, then drinks three cans of free soda.
8.The villain asks how to leave, then unties both of their shoes.
9.The villain checks their phone constantly, then sits flat on the dusty floor.
10.The villain glares directly at the camera, then drinks three cans of free soda.
11.The villain asks how to leave, then takes a very loud nap.
12.The villain checks their phone constantly, then takes a very loud nap.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 5 math
Math topics
Multiplication, Rounding, Skip counting, Place value, Division
Reading level
grades 5-6
Theme
The Case of the Reluctant Contestants — set in The Unwanted Game Show Arena
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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