🔎 SingingGrade 3Reading: grades 1-2RoundingAdditionSubtractionMultiplicationDivision
The Mystery of the Missing Microphone
The Golden Microphone is gone! The star soloist cannot sing tonight. We must find the mic stealer before the big concert starts!
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | Singing Style | Stage Prop | Mic Hand | Hair Style | Weakness |
|---|---|---|---|---|---|
| Bruno | opera blast | laser glove | holds mic right handed | blue mohawk | seeing a loud fan clap |
| Freddie | rap rhyme | sparkler wand | holds mic right handed | neon pink hair | seeing a loud fan clap |
| Beyonce | jazz hum | disco ball | holds mic right handed | neon pink hair | hearing a squeaky violin |
| Pink | pop whistle | disco ball | holds mic left handed | blue mohawk | cold water throat lozenge |
| Usher | jazz hum | sparkler wand | holds mic right handed | glitter curls | seeing a loud fan clap |
| Harry | jazz hum | laser glove | holds mic left handed | neon pink hair | cold water throat lozenge |
| Kelly | rock scream | laser glove | holds mic left handed | neon pink hair | cold water throat lozenge |
| Ariana | opera blast | bubble blaster | holds mic left handed | neon pink hair | cold water throat lozenge |
| Elvis | rock scream | laser glove | holds mic right handed | glitter curls | cold water throat lozenge |
| Zayn | rap rhyme | fog machine | holds mic left handed | blue mohawk | cold water throat lozenge |
| Lizzo | jazz hum | sparkler wand | holds mic left handed | blue mohawk | cold water throat lozenge |
| Dolly | rap rhyme | fog machine | holds mic left handed | neon pink hair | cold water throat lozenge |
| Shakira | rock scream | disco ball | holds mic left handed | blue mohawk | cold water throat lozenge |
| Adele | rap rhyme | laser glove | holds mic left handed | neon pink hair | cold water throat lozenge |
| Billie | rap rhyme | laser glove | holds mic left handed | neon pink hair | seeing a loud fan clap |
| Miley | rap rhyme | fog machine | holds mic right handed | blue mohawk | seeing a loud fan clap |
| Selena | rap rhyme | bubble blaster | holds mic left handed | glitter curls | hearing a squeaky violin |
| Ed | opera blast | disco ball | holds mic right handed | neon pink hair | seeing a loud fan clap |
| Katy | opera blast | laser glove | holds mic right handed | neon pink hair | cold water throat lozenge |
| Olivia | jazz hum | fog machine | holds mic left handed | glitter curls | hearing a squeaky violin |
| Shawn | pop whistle | disco ball | holds mic left handed | neon pink hair | seeing a loud fan clap |
Clue 1
Rounding
A digital tuner shows the sound wave level. It only shows rounded numbers. Round the song levels to the nearest ten to boot up the machine.
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
2000
300
60
500
50
80
20
70
3000
T
2000
200
5000
60
6000
8000
5000
T
2000
50
6000
60
7000
9000
5000
900
40
7000
500
300
3000
8000
60
Round 2,103 to the nearest thousandT
Round 267 to the nearest hundredH
Round 5,298 to the nearest thousandO
Round 7,483 to the nearest thousandA
Round 51 to the nearest tenU
Round 64 to the nearest tenE
Round 5,724 to the nearest thousandS
Round 946 to the nearest hundredG
Round 72 to the nearest tenR
Round 2,720 to the nearest thousandI
Round 162 to the nearest hundredD
Round 36 to the nearest tenM
Round 17 to the nearest tenP
Round 9,477 to the nearest thousandF
Round 82 to the nearest tenL
Round 536 to the nearest hundredC
Round 8,398 to the nearest thousandN
0/17 letters found
Clue 2
Addition
We need to count the music sheets. Add the stacks of sheets together to see who practiced today.
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
867
206
234
378
866
301
253
234
604
247
234
405
T
867
495
247
234
405
T
867
206
495
301
312
234
312
253
247
462
667
234
420 + 447 =T
429 + 238 =V
302 + 564 =I
207 + 288 =A
76 + 171 =L
169 + 143 =D
160 + 93 =G
224 + 181 =F
262 + 200 =O
142 + 159 =N
131 + 247 =S
101 + 105 =H
237 + 367 =R
158 + 76 =E
0/14 letters found
Clue 3
Subtraction
Some guitar picks are missing from the case. Subtract the broken picks to find how many we can use.
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
429
857
331
721
231
331
331
827
419
469
472
854
827
526
419
T
429
331
508
854
472
285
331
231
808
331
T
429
472
809
359
231
808
733 - 304 =T
656 - 130 =W
615 - 284 =E
263 - 32 =N
1029 - 172 =H
579 - 71 =R
437 - 152 =Z
1022 - 213 =S
1084 - 363 =Y
809 - 390 =A
1002 - 148 =L
632 - 160 =O
897 - 89 =G
834 - 7 =D
606 - 247 =I
816 - 347 =C
0/16 letters found
Clue 4
Multiplication facts (1-12)
The stage lights are set up in equal rows. Multiply the rows of lights to turn them on and light up the floor.
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
40
90
55
1
9
96
45
96
90
1
96
24
33
96
48
7
121
33
110
1
96
6
7
90
99
6
121
20
90
5 × 8 =W
8 × 6 =K
10 × 2 =G
5 × 11 =F
3 × 11 =I
10 × 11 =R
9 × 10 =E
6 × 4 =P
7 × 1 =H
11 × 9 =S
3 × 2 =T
5 × 9 =D
11 × 11 =A
12 × 8 =N
9 × 1 =U
1 × 1 =O
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
We have many microphones to share. Divide the mics among the singers so everyone gets an equal share.
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
16 ÷ 2 = ?
108 ÷ 12 = ?
8 ÷ 4 = ?
7 ÷ 1 = ?
20 ÷ 4 = ?
90 ÷ 9 = ?
11 ÷ 11 = ?
15 ÷ 5 = ?
6 ÷ 1 = ?
72 ÷ 6 = ?
24 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain sings a smooth jazz hum, then shoots a wet bubble blaster.
2.The villain sings a smooth jazz hum, then shines a bright laser glove.
3.The villain lets out a loud opera blast, then turns on a thick fog machine.
4.The villain lets out a loud opera blast, then shines a bright laser glove.
5.The villain makes a high pop whistle sound, then shines a bright laser glove.
6.The villain gives a loud rock scream, then shoots a wet bubble blaster.
7.The villain makes a high pop whistle sound, then waves a glowing sparkler wand.
8.The villain spits a fast rap rhyme, then shines a bright laser glove.
9.The villain lets out a loud opera blast, then shoots a wet bubble blaster.
10.The villain sings a smooth jazz hum, then drops a shiny disco ball.
11.The villain gives a loud rock scream, then shines a bright laser glove.
12.The villain spits a fast rap rhyme, then waves a glowing sparkler wand.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Missing Microphone
Culprit: Kelly (rock scream · laser glove · holds mic left handed · neon pink hair · cold water throat lozenge)
- Clue 1 (Rounding): "THE CULPRIT DOES NOT USE A FOG MACHINE"Round 2,103 to the nearest thousand = 2000 (T) · Round 267 to the nearest hundred = 300 (H) · Round 5,298 to the nearest thousand = 5000 (O) · Round 7,483 to the nearest thousand = 7000 (A) · Round 51 to the nearest ten = 50 (U) · Round 64 to the nearest ten = 60 (E) · Round 5,724 to the nearest thousand = 6000 (S) · Round 946 to the nearest hundred = 900 (G) · Round 72 to the nearest ten = 70 (R) · Round 2,720 to the nearest thousand = 3000 (I) · Round 162 to the nearest hundred = 200 (D) · Round 36 to the nearest ten = 40 (M) · Round 17 to the nearest ten = 20 (P) · Round 9,477 to the nearest thousand = 9000 (F) · Round 82 to the nearest ten = 80 (L) · Round 536 to the nearest hundred = 500 (C) · Round 8,398 to the nearest thousand = 8000 (N)
- Clue 2 (Addition): "THE SINGER LEFT A LEFT HANDED GLOVE"420 + 447 = 867 (T) · 429 + 238 = 667 (V) · 302 + 564 = 866 (I) · 207 + 288 = 495 (A) · 76 + 171 = 247 (L) · 169 + 143 = 312 (D) · 160 + 93 = 253 (G) · 224 + 181 = 405 (F) · 262 + 200 = 462 (O) · 142 + 159 = 301 (N) · 131 + 247 = 378 (S) · 101 + 105 = 206 (H) · 237 + 367 = 604 (R) · 158 + 76 = 234 (E)
- Clue 3 (Subtraction): "THEY NEED A COLD WATER LOZENGE TO SING"733 - 304 = 429 (T) · 656 - 130 = 526 (W) · 615 - 284 = 331 (E) · 263 - 32 = 231 (N) · 1029 - 172 = 857 (H) · 579 - 71 = 508 (R) · 437 - 152 = 285 (Z) · 1022 - 213 = 809 (S) · 1084 - 363 = 721 (Y) · 809 - 390 = 419 (A) · 1002 - 148 = 854 (L) · 632 - 160 = 472 (O) · 897 - 89 = 808 (G) · 834 - 7 = 827 (D) · 606 - 247 = 359 (I) · 816 - 347 = 469 (C)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND NEON PINK HAIR ON THE STAGE"5 × 8 = 40 (W) · 8 × 6 = 48 (K) · 10 × 2 = 20 (G) · 5 × 11 = 55 (F) · 3 × 11 = 33 (I) · 10 × 11 = 110 (R) · 9 × 10 = 90 (E) · 6 × 4 = 24 (P) · 7 × 1 = 7 (H) · 11 × 9 = 99 (S) · 3 × 2 = 6 (T) · 5 × 9 = 45 (D) · 11 × 11 = 121 (A) · 12 × 8 = 96 (N) · 9 × 1 = 9 (U) · 1 × 1 = 1 (O)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Kelly16 ÷ 2 = 8 · 108 ÷ 12 = 9 · 8 ÷ 4 = 2 · 7 ÷ 1 = 7 · 20 ÷ 4 = 5 · 90 ÷ 9 = 10 · 11 ÷ 11 = 1 · 15 ÷ 5 = 3 · 6 ÷ 1 = 6 · 72 ÷ 6 = 12 · 24 ÷ 6 = 4
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 1-2
- Theme
- The Mystery of the Missing Microphone — set in Melody Music Camp
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects