🔎 CookiesGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Great Cookie Kingdom Mystery

Someone snuck into the royal pantry and swiped the legendary Golden Cookie Recipe! The floor is covered in crumbs and frosting. Can you help the baking squad find the culprit before the grand baking festival begins?

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	Baking Style	Secret Ingredient	Scoop Hand	Crumb Dusting	Favorite Drink
Mac Macaroon	double-baked	rainbow sprinkles	left-handed scoop	sugar crystals	warm tea
Barnaby Baker	crunchy baking	chocolate chips	right-handed scoop	cocoa powder	apple juice
Fiona Fudge	frosted style	peppermint swirl	left-handed scoop	cocoa powder	apple juice
Bessie Biscotti	chewy baking	peanut butter	left-handed scoop	sugar crystals	apple juice
Sally Shortbread	no-bake style	chocolate chips	left-handed scoop	sugar crystals	apple juice
Peter Pizzelle	no-bake style	sea salt	left-handed scoop	sugar crystals	apple juice
Mimi Molasses	crunchy baking	peppermint swirl	right-handed scoop	cinnamon crumbs	warm tea
Danny Dough	crunchy baking	sea salt	left-handed scoop	cinnamon crumbs	apple juice
Otis Oatmeal	frosted style	peppermint swirl	right-handed scoop	sugar crystals	cold milk
Abby Alfajor	chewy baking	peanut butter	right-handed scoop	sugar crystals	apple juice
Penny Peanut	chewy baking	rainbow sprinkles	left-handed scoop	cocoa powder	apple juice
Gus Graham	double-baked	chocolate chips	left-handed scoop	sugar crystals	apple juice
Rudy Raisin	frosted style	peppermint swirl	left-handed scoop	cinnamon crumbs	warm tea
Toby Tart	frosted style	sea salt	left-handed scoop	cinnamon crumbs	apple juice
Wendy Whipped	crunchy baking	peanut butter	right-handed scoop	cocoa powder	cold milk
Oliver Oreo	double-baked	peppermint swirl	left-handed scoop	sugar crystals	cold milk
Zack Zweiback	frosted style	chocolate chips	left-handed scoop	cinnamon crumbs	warm tea
Wally Wafer	crunchy baking	chocolate chips	left-handed scoop	cinnamon crumbs	apple juice
Sprinkles Sam	chewy baking	rainbow sprinkles	left-handed scoop	sugar crystals	apple juice
Chippy Charlie	crunchy baking	sea salt	right-handed scoop	cocoa powder	apple juice
Betty Butter	frosted style	rainbow sprinkles	right-handed scoop	sugar crystals	apple juice

Clue 1

Rounding

The flour scale in the bakery is old and only shows the weight rounded to the nearest ten pounds. We weighed the giant sack of sugar to unlock this first hint.

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

8000

3000

300

3000

9000

7000

3000

600

7000

3000

Round 39 to the nearest tenT

Round 6,844 to the nearest thousandO

Round 264 to the nearest hundredP

Round 79 to the nearest tenS

Round 2,549 to the nearest thousandE

Round 592 to the nearest hundredN

Round 58 to the nearest tenC

Round 8,871 to the nearest thousandD

Round 26 to the nearest tenU

Round 24 to the nearest tenL

Round 49 to the nearest tenA

Round 7,980 to the nearest thousandH

0/12 letters found

Clue 2

Addition

We found three different boxes of stolen baking supplies hidden in the pantry. Adding them all together revealed a secret note from the thief.

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

698

279

421

543

421

233

698

279

957

784

564

421

564

413

671

776

206

775

957

413

634

413

421

564

456 + 242 =T

322 + 462 =N

280 + 141 =E

122 + 111 =F

205 + 429 =U

187 + 92 =H

257 + 307 =D

89 + 117 =P

345 + 198 =L

295 + 481 =O

247 + 424 =C

480 + 477 =A

534 + 241 =W

272 + 141 =S

0/14 letters found

Clue 3

Subtraction

The baker made a big tray of sugar cookies, but the thief took quite a few of them. Subtracting the left-over cookies from the starting amount gives us our next lead.

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

269

534

211

464

149

607

116

527

464

106

269

653

464

624

166

894

464

106

624

636

464

234

464

298 - 29 =A

923 - 29 =H

228 - 17 =L

554 - 20 =P

984 - 377 =U

922 - 269 =K

404 - 288 =I

420 - 314 =M

356 - 190 =T

834 - 198 =N

207 - 58 =J

727 - 200 =C

644 - 20 =S

405 - 171 =Z

779 - 315 =E

0/15 letters found

Clue 4

Multiplication facts (1-12)

The cookie trays are arranged in perfect rows and columns on the cooling racks. Multiplying the rows by the columns helps us calculate the thief's next move.

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

121

12 × 3 =S

5 × 2 =L

11 × 11 =Y

5 × 10 =O

1 × 5 =A

7 × 9 =G

12 × 5 =C

4 × 1 =N

3 × 10 =E

11 × 12 =U

2 × 9 =T

11 × 5 =R

1 × 3 =I

9 × 8 =H

0/14 letters found

Clue 5

Division facts (1-12) — the last clue

We have a box of crumbs to split evenly among the detective team. Sharing them equally tells us exactly where the thief ran off to.

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 ÷ 4 = ?

48 ÷ 4 = ?

108 ÷ 12 = ?

55 ÷ 11 = ?

5 ÷ 5 = ?

60 ÷ 6 = ?

88 ÷ 11 = ?

36 ÷ 9 = ?

56 ÷ 8 = ?

6 ÷ 3 = ?

22 ÷ 2 = ?

Step 2 — cross out the sentence with each answer

1.The villain eats all the raw dough, then scatters chocolate chips behind.

2.The villain hides the golden rolling pin, then leaves a trail of frosting.

3.The villain mixes up the secret flour, then leaves a trail of frosting.

4.The villain hides the golden rolling pin, then sprinkles flour everywhere.

5.The villain steals the chocolate chips, then sprinkles flour everywhere.

6.The villain turns off the royal ovens, then escapes through the bakery window.

7.The villain eats all the raw dough, then laughs with a mouth full of cookies.

8.The villain hides the golden rolling pin, then escapes through the bakery window.

9.The villain mixes up the secret flour, then sprinkles flour everywhere.

10.The villain turns off the royal ovens, then sprinkles flour everywhere.

11.The villain eats all the raw dough, then sprinkles flour everywhere.

12.The villain eats all the raw dough, then escapes through the bakery window.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Great Cookie Kingdom Mystery

Culprit: Gus Graham (double-baked · chocolate chips · left-handed scoop · sugar crystals · apple juice)

Clue 1 (Rounding): "THE SUSPECT DOES NOT USE SEA SALT"
Round 39 to the nearest ten = 40 (T) · Round 6,844 to the nearest thousand = 7000 (O) · Round 264 to the nearest hundred = 300 (P) · Round 79 to the nearest ten = 80 (S) · Round 2,549 to the nearest thousand = 3000 (E) · Round 592 to the nearest hundred = 600 (N) · Round 58 to the nearest ten = 60 (C) · Round 8,871 to the nearest thousand = 9000 (D) · Round 26 to the nearest ten = 30 (U) · Round 24 to the nearest ten = 20 (L) · Round 49 to the nearest ten = 50 (A) · Round 7,980 to the nearest thousand = 8000 (H)
Clue 2 (Addition): "THE LEFT HANDED SCOOP WAS USED"
456 + 242 = 698 (T) · 322 + 462 = 784 (N) · 280 + 141 = 421 (E) · 122 + 111 = 233 (F) · 205 + 429 = 634 (U) · 187 + 92 = 279 (H) · 257 + 307 = 564 (D) · 89 + 117 = 206 (P) · 345 + 198 = 543 (L) · 295 + 481 = 776 (O) · 247 + 424 = 671 (C) · 480 + 477 = 957 (A) · 534 + 241 = 775 (W) · 272 + 141 = 413 (S)
Clue 3 (Subtraction): "APPLE JUICE MAKES THEM SNEEZE"
298 - 29 = 269 (A) · 923 - 29 = 894 (H) · 228 - 17 = 211 (L) · 554 - 20 = 534 (P) · 984 - 377 = 607 (U) · 922 - 269 = 653 (K) · 404 - 288 = 116 (I) · 420 - 314 = 106 (M) · 356 - 190 = 166 (T) · 834 - 198 = 636 (N) · 207 - 58 = 149 (J) · 727 - 200 = 527 (C) · 644 - 20 = 624 (S) · 405 - 171 = 234 (Z) · 779 - 315 = 464 (E)
Clue 4 (Multiplication facts (1-12)): "SUGAR CRYSTALS SHONE IN THE LIGHT"
12 × 3 = 36 (S) · 5 × 2 = 10 (L) · 11 × 11 = 121 (Y) · 5 × 10 = 50 (O) · 1 × 5 = 5 (A) · 7 × 9 = 63 (G) · 12 × 5 = 60 (C) · 4 × 1 = 4 (N) · 3 × 10 = 30 (E) · 11 × 12 = 132 (U) · 2 × 9 = 18 (T) · 11 × 5 = 55 (R) · 1 × 3 = 3 (I) · 9 × 8 = 72 (H)
Clue 5 (Division facts (1-12)): surviving statement (box 6) → Gus Graham
12 ÷ 4 = 3 · 48 ÷ 4 = 12 · 108 ÷ 12 = 9 · 55 ÷ 11 = 5 · 5 ÷ 5 = 1 · 60 ÷ 6 = 10 · 88 ÷ 11 = 8 · 36 ÷ 9 = 4 · 56 ÷ 8 = 7 · 6 ÷ 3 = 2 · 22 ÷ 2 = 11

About this mystery

Grade level: Grade 3 math
Math topics: Rounding, Addition, Subtraction, Multiplication, Division
Reading level: grades 3-4
Theme: The Great Cookie Kingdom Mystery — set in The Sweet Street Royal Bakery
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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