Math Crackers
🔎 Talor SwiftGrade 2Reading: grades 3-4Place valueAdditionSubtractionSkip countingMissing addends

The Eras Tour Mystery

Someone switched the setlist right before showtime at the Midnight Pop Arena! Use your math detective skills to gather clues, track down the sneaky concert crasher, and save the biggest night of the tour.

Suspects

Possible suspects

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

21 of 21 still in play
NameInstrumentStage AccessoryMicrophone HandHairstyleStage Hazard
GigiGrand PianoSnake RingLeft HandedBlonde BangsMic Feedback
AndreaAcoustic GuitarSilver MicrophoneLeft HandedRed PonytailCat Nibbles
HarryKeytarSilver MicrophoneLeft HandedBlonde BangsMic Feedback
EsteAcoustic GuitarFeather BoaLeft HandedBlonde BangsMic Feedback
BlakeGrand PianoSilver MicrophoneRight HandedRed PonytailCat Nibbles
AustinKeytarSnake RingLeft HandedRed PonytailCat Nibbles
AaronSequined JacketSnake RingRight HandedRed PonytailCat Nibbles
LanaGolden MegaphoneSnake RingRight HandedBrunette CurlsCat Nibbles
SelenaKeytarSnake RingRight HandedBlonde BangsMic Feedback
MaxKeytarFeather BoaRight HandedRed PonytailMic Feedback
AlanaAcoustic GuitarSnake RingLeft HandedBlonde BangsMic Feedback
KarlieKeytarFeather BoaRight HandedBrunette CurlsMic Feedback
TaylorAcoustic GuitarFeather BoaRight HandedBrunette CurlsMic Feedback
JackGrand PianoSparkly BootsRight HandedRed PonytailCat Nibbles
AbigailSequined JacketSilver MicrophoneRight HandedRed PonytailMic Feedback
RyanKeytarSnake RingLeft HandedRed PonytailCamera Flash
PaulGrand PianoSnake RingLeft HandedBlonde BangsCamera Flash
GracieGolden MegaphoneHeart SunglassesRight HandedRed PonytailCat Nibbles
AmosGrand PianoSparkly BootsRight HandedBrunette CurlsMic Feedback
DanielleAcoustic GuitarSilver MicrophoneRight HandedRed PonytailCat Nibbles
PhoebeAcoustic GuitarSnake RingRight HandedBlonde BangsMic Feedback
Clue 1

Place value

We found a VIP ticket stub left on stage, but only the digit in the tens place is clearly visible.

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
13
35
76
43
84
47
47
41
84
87
35
41
26
87
70
26
49
41
56
97
47
71
62
70
70
T
13
26
What number has 1 ten and 3 ones?T
What number has 7 tens and 0 ones?O
What number has 6 tens and 2 ones?B
What number has 5 tens and 6 ones?R
What number has 4 tens and 7 ones?L
What number has 4 tens and 3 ones?V
What number has 9 tens and 7 ones?K
What number has 7 tens and 6 ones?E
What number has 8 tens and 4 ones?I
What number has 7 tens and 1 one?Y
What number has 4 tens and 9 ones?P
What number has 4 tens and 1 one?A
What number has 2 tens and 6 ones?S
What number has 3 tens and 5 ones?H
What number has 8 tens and 7 ones?N
0/15 letters found
Clue 2

Addition

The backstage crew gathered up all the extra tour t-shirts and added them together.

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
68
31
S
68
36
94
66
87
46
S
68
60
46
77
76
87
76
57
81
34
94
34
29 + 39 =S
18 + 18 =P
21 + 10 =U
19 + 41 =R
13 + 33 =I
43 + 33 =H
21 + 13 =D
36 + 41 =G
33 + 54 =T
38 + 28 =C
34 + 60 =E
17 + 40 =A
37 + 44 =N
0/13 letters found
Clue 3

Subtraction

A box of sparkly guitar picks was opened and several went missing before showtime.

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
81
88
S
81
39
45
12
14
40
88
89
S
81
66
40
18
44
12
78
14
89
50
60
60
83
45
S
81
83 - 2 =S
57 - 17 =R
105 - 16 =N
57 - 18 =P
66 - 21 =E
64 - 4 =B
42 - 28 =T
46 - 28 =O
36 - 24 =C
54 - 10 =M
100 - 22 =A
56 - 6 =I
71 - 5 =F
111 - 23 =U
100 - 17 =L
0/15 letters found
Clue 4

Skip counting

The stage manager counted up the colorful lights lining the walkway in equal groups.

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

F
60
30
24
10
16
9
20
16
120
30
10
36
90
40
15
22
40
90
90
26
20
33
90
40
6
20
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42Y
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28U
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50A
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26L
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30H
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140P
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21I
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110T
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10G
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14N
0/16 letters found
Clue 5

Missing addends — the last clue

The band needed a full rack of microphone stands, but some spots were empty.

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
5 + ___ = 14
2 + ___ = 12
1 + ___ = 13
9 + ___ = 17
2 + ___ = 8
4 + ___ = 11
10 + ___ = 13
4 + ___ = 5
1 + ___ = 12
5 + ___ = 10
5 + ___ = 9
Step 2 — cross out the sentence with each answer
1.The villain jammed out on a synth keytar, then flashed heart sunglasses.
2.The villain danced around in a sequined jacket, then showed off a snake ring.
3.The villain played a melody on grand piano, then twirled a purple feather boa.
4.The villain jammed out on a synth keytar, then strutted in sparkly boots.
5.The villain jammed out on a synth keytar, then showed off a snake ring.
6.The villain played a melody on grand piano, then flashed heart sunglasses.
7.The villain jammed out on a synth keytar, then twirled a purple feather boa.
8.The villain strummed an acoustic guitar, then flashed heart sunglasses.
9.The villain played a melody on grand piano, then sang into a silver microphone.
10.The villain strummed an acoustic guitar, then sang into a silver microphone.
11.The villain danced around in a sequined jacket, then sang into a silver microphone.
12.The villain shouted through a golden megaphone, then flashed heart sunglasses.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 2 math
Math topics
Place value, Addition, Subtraction, Skip counting, Missing addends
Reading level
grades 3-4
Theme
The Eras Tour Mystery — set in The Midnight Pop Arena
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

More free printable math cases

2nd grade worksheetsAddition worksheetsSubtraction worksheetsPlace value worksheetsSkip counting worksheetsMissing addends worksheetsAll worksheets →
The Mystery of Golden Lake
Grade 2
The Mystery of the Gym Saboteur
Grade 2
The Moon Base Mystery
Grade 2
The Moon Base Mystery
Grade 2