💃 The missing dance matGrade 4Reading: grades 3-4MultiplicationSubtractionAdditionRoundingDivision

The Case of the Missing Dance Mat

The annual Neon Beats Dance-Off is tonight, but the glowing Master Dance Mat has vanished from the main stage! Without it, nobody can perform their mega-moves. Coach Carly needs your help to track down the suspect and save the show!

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	favorite move	dance accessory	starting foot	hair style	fumble factor
Taylor	groove glide	glowing sneakers	left footed start	spiky blue hair	water bottle splash
Billie	electric slide	boombox backpack	right footed start	green neon cap	water bottle splash
Shakira	laser leap	neon headphones	left footed start	spiky blue hair	water bottle splash
Ciara	electric slide	glowing sneakers	left footed start	spiky blue hair	juice box break
Elvis	pixel spin	glitter jacket	right footed start	green neon cap	juice box break
Zendaya	groove glide	glowing sneakers	left footed start	pink ponytail	shoelace tangle
Usher	laser leap	glowing sneakers	left footed start	spiky blue hair	shoelace tangle
Hammer	retro stomp	neon headphones	right footed start	green neon cap	shoelace tangle
Beyonce	laser leap	glowing sneakers	left footed start	green neon cap	juice box break
Ariana	groove glide	boombox backpack	left footed start	spiky blue hair	water bottle splash
Bruno	groove glide	boombox backpack	right footed start	green neon cap	juice box break
JoJo	retro stomp	sparkly headband	left footed start	spiky blue hair	water bottle splash
Maddie	retro stomp	sparkly headband	right footed start	pink ponytail	juice box break
Selena	electric slide	sparkly headband	right footed start	green neon cap	shoelace tangle
Janet	retro stomp	glitter jacket	left footed start	pink ponytail	water bottle splash
Drake	retro stomp	glowing sneakers	left footed start	spiky blue hair	juice box break
Dua	retro stomp	glowing sneakers	left footed start	spiky blue hair	water bottle splash
Paula	laser leap	neon headphones	left footed start	green neon cap	water bottle splash
Lizzo	retro stomp	glowing sneakers	left footed start	spiky blue hair	shoelace tangle
Michael	pixel spin	glitter jacket	right footed start	spiky blue hair	water bottle splash
Justin	electric slide	sparkly headband	right footed start	green neon cap	juice box break

Clue 1

Multiplication facts (1-12)

We need to check the dance mat storage lockers. The lockers are arranged in equal rows. Let us multiply the rows to count them all and find our 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.

132

120

132

120

132

6 × 3 =T

3 × 11 =O

11 × 5 =H

7 × 7 =D

1 × 9 =C

9 × 9 =P

12 × 10 =S

6 × 11 =B

5 × 12 =A

2 × 8 =L

8 × 10 =R

6 × 7 =Y

3 × 5 =N

11 × 12 =E

4 × 11 =K

0/15 letters found

Clue 2

Subtraction

Someone dropped a pile of glowing wristbands. We started with many, but some are gone. Subtract the missing ones to see how many the dancer dropped!

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

3649

6089

8089

2493

7691

7728

7691

3649

2713

3114

7728

3649

8141

3114

3649

8089

4173

4079

7691

3649

6089

3649

6089

8089

6165

8089

6037

3649

6037

2713

3649

6896 - 3247 =T

9460 - 1732 =S

4267 - 94 =D

5642 - 1563 =W

3926 - 1433 =V

9524 - 3435 =H

10905 - 4868 =F

12337 - 4646 =I

9812 - 1723 =E

10313 - 2172 =A

10933 - 4768 =L

5933 - 2819 =R

5529 - 2816 =O

0/13 letters found

Clue 3

Addition

Let us tally up the neon stars awarded to the dance groups. Add the star stickers from both teams to unlock the next piece of evidence.

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

4772

7992

6918

3230

9793

6918

5865

6688

4657

3400

5865

9793

3623

6918

9154

3230

4330

7692

2693

6918

3400

3080

9793

5865

4990

5865

4772

6918

9154

3230

2693

4330

5865

3230

7992

2781 + 1991 =T

1827 + 1796 =C

4597 + 4557 =R

1377 + 2953 =L

1200 + 1493 =P

2307 + 1093 =D

3924 + 3768 =I

1903 + 1177 =O

2296 + 3569 =A

3644 + 3274 =E

3790 + 4202 =H

3241 + 1416 =Y

3414 + 3274 =K

1681 + 3309 =W

3175 + 6618 =N

2092 + 1138 =S

0/16 letters found

Clue 4

Rounding

The electronic step-counter screen is fuzzy and only shows a rounded number. Round the total steps to the nearest ten to decode this 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.

3700

1300

200

1300

3700

1300

3000

3700

1700

1300

2300

900

4300

9000

200

370

1700

500

700

2900

230

4300

1300

290

1700

7000

Round 3,667 to the nearest hundredT

Round 289 to the nearest tenA

Round 689 to the nearest hundredY

Round 6,750 to the nearest thousandR

Round 88 to the nearest tenH

Round 1,295 to the nearest hundredE

Round 230 to the nearest tenL

Round 3,448 to the nearest thousandC

Round 889 to the nearest hundredO

Round 9,084 to the nearest thousandN

Round 52 to the nearest tenS

Round 240 to the nearest hundredD

Round 494 to the nearest hundredK

Round 2,305 to the nearest hundredF

Round 374 to the nearest tenP

Round 2,937 to the nearest hundredB

Round 1,659 to the nearest hundredI

Round 4,258 to the nearest hundredU

Round 73 to the nearest tenV

0/19 letters found

Clue 5

Division facts (1-12) — the last clue

We have a big pack of practice snacks to share equally among the hip-hop crew. Divide the snacks to see who gets what and find 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

12 ÷ 1 = ?

30 ÷ 10 = ?

32 ÷ 4 = ?

88 ÷ 8 = ?

40 ÷ 10 = ?

99 ÷ 11 = ?

9 ÷ 9 = ?

30 ÷ 6 = ?

2 ÷ 1 = ?

70 ÷ 10 = ?

60 ÷ 6 = ?

Step 2 — cross out the sentence with each answer

1.The villain unplugs the giant speakers, then leaps through the window.

2.The villain swipes the power cables, then zips away on a scooter.

3.The villain sneaks onto the glowing dance floor, then scampers down the hallway.

4.The villain creeps into the practice room, then zips away on a scooter.

5.The villain sneaks onto the glowing dance floor, then darts out the back exit.

6.The villain unplugs the giant speakers, then zips away on a scooter.

7.The villain unplugs the giant speakers, then scampers down the hallway.

8.The villain swipes the power cables, then darts out the back exit.

9.The villain sneaks onto the glowing dance floor, then leaps through the window.

10.The villain sneaks onto the glowing dance floor, then dances out into the street.

11.The villain hides behind the DJ booth, then darts out the back exit.

12.The villain sneaks onto the glowing dance floor, then zips away on a scooter.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Case of the Missing Dance Mat

Culprit: Dua (retro stomp · glowing sneakers · left footed start · spiky blue hair · water bottle splash)

Clue 1 (Multiplication facts (1-12)): "THE SNATCHER HAS NO SPARKLY HEADBAND"
6 × 3 = 18 (T) · 3 × 11 = 33 (O) · 11 × 5 = 55 (H) · 7 × 7 = 49 (D) · 1 × 9 = 9 (C) · 9 × 9 = 81 (P) · 12 × 10 = 120 (S) · 6 × 11 = 66 (B) · 5 × 12 = 60 (A) · 2 × 8 = 16 (L) · 8 × 10 = 80 (R) · 6 × 7 = 42 (Y) · 3 × 5 = 15 (N) · 11 × 12 = 132 (E) · 4 × 11 = 44 (K)
Clue 2 (Subtraction): "THE VISITOR STARTED WITH THE LEFT FOOT"
6896 - 3247 = 3649 (T) · 9460 - 1732 = 7728 (S) · 4267 - 94 = 4173 (D) · 5642 - 1563 = 4079 (W) · 3926 - 1433 = 2493 (V) · 9524 - 3435 = 6089 (H) · 10905 - 4868 = 6037 (F) · 12337 - 4646 = 7691 (I) · 9812 - 1723 = 8089 (E) · 10313 - 2172 = 8141 (A) · 10933 - 4768 = 6165 (L) · 5933 - 2819 = 3114 (R) · 5529 - 2816 = 2713 (O)
Clue 3 (Addition): "THE SNEAKY DANCER SLIPPED ON A WATER SPLASH"
2781 + 1991 = 4772 (T) · 1827 + 1796 = 3623 (C) · 4597 + 4557 = 9154 (R) · 1377 + 2953 = 4330 (L) · 1200 + 1493 = 2693 (P) · 2307 + 1093 = 3400 (D) · 3924 + 3768 = 7692 (I) · 1903 + 1177 = 3080 (O) · 2296 + 3569 = 5865 (A) · 3644 + 3274 = 6918 (E) · 3790 + 4202 = 7992 (H) · 3241 + 1416 = 4657 (Y) · 3414 + 3274 = 6688 (K) · 1681 + 3309 = 4990 (W) · 3175 + 6618 = 9793 (N) · 2092 + 1138 = 3230 (S)
Clue 4 (Rounding): "THE DETECTIVE FOUND SPIKY BLUE HAIR"
Round 3,667 to the nearest hundred = 3700 (T) · Round 289 to the nearest ten = 290 (A) · Round 689 to the nearest hundred = 700 (Y) · Round 6,750 to the nearest thousand = 7000 (R) · Round 88 to the nearest ten = 90 (H) · Round 1,295 to the nearest hundred = 1300 (E) · Round 230 to the nearest ten = 230 (L) · Round 3,448 to the nearest thousand = 3000 (C) · Round 889 to the nearest hundred = 900 (O) · Round 9,084 to the nearest thousand = 9000 (N) · Round 52 to the nearest ten = 50 (S) · Round 240 to the nearest hundred = 200 (D) · Round 494 to the nearest hundred = 500 (K) · Round 2,305 to the nearest hundred = 2300 (F) · Round 374 to the nearest ten = 370 (P) · Round 2,937 to the nearest hundred = 2900 (B) · Round 1,659 to the nearest hundred = 1700 (I) · Round 4,258 to the nearest hundred = 4300 (U) · Round 73 to the nearest ten = 70 (V)
Clue 5 (Division facts (1-12)): surviving statement (box 6) → Dua
12 ÷ 1 = 12 · 30 ÷ 10 = 3 · 32 ÷ 4 = 8 · 88 ÷ 8 = 11 · 40 ÷ 10 = 4 · 99 ÷ 11 = 9 · 9 ÷ 9 = 1 · 30 ÷ 6 = 5 · 2 ÷ 1 = 2 · 70 ÷ 10 = 7 · 60 ÷ 6 = 10

About this mystery

Grade level: Grade 4 math
Math topics: Multiplication, Subtraction, Addition, Rounding, Division
Reading level: grades 3-4
Theme: The Case of the Missing Dance Mat — set in Neon Beats Dance Studio
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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