🔎 CookiesGrade 3Reading: grades 1-2RoundingAdditionSubtractionMultiplicationDivision
The Golden Cookie Mystery
Oh no! The Golden Cookie is gone! It is the best cookie in the whole bakery. Head Baker Ben needs our help to find who took it before the big bake sale!
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 | Cookie Power | Topping Power | Mixing Hand | Crumb Color | Cookie Weakness |
|---|---|---|---|---|---|
| Chef Pierre | Choco-Chunky | Caramel Drizzle | Right-Handed | Brown Crumbs | Milk Splashes |
| Ruth Wakefield | Peanut-Butter-Punch | Marshmallow Melt | Right-Handed | Red Crumbs | Milk Splashes |
| Billy Biscotti | Fudge-Swirl | Minty Mist | Right-Handed | Red Crumbs | Warm Ovens |
| Baker Bob | Choco-Chunky | Caramel Drizzle | Right-Handed | Yellow Crumbs | Milk Splashes |
| Duncan Hines | Sugar-Sparkle | Sprinkle Blast | Right-Handed | Brown Crumbs | Cookie Jars |
| Miss Madeleine | Peanut-Butter-Punch | Sprinkle Blast | Right-Handed | Yellow Crumbs | Cookie Jars |
| Cookie Monster | Fudge-Swirl | Marshmallow Melt | Left-Handed | Red Crumbs | Warm Ovens |
| Duke Snickerdoodle | Fudge-Swirl | Caramel Drizzle | Left-Handed | Brown Crumbs | Warm Ovens |
| Betty Crocker | Fudge-Swirl | Sprinkle Blast | Left-Handed | Yellow Crumbs | Cookie Jars |
| Sally Sugar | Oatmeal-Oomph | Cherry Glow | Right-Handed | Brown Crumbs | Cookie Jars |
| Sir Crumbs | Oatmeal-Oomph | Marshmallow Melt | Left-Handed | Yellow Crumbs | Cookie Jars |
| Wally Amos | Peanut-Butter-Punch | Minty Mist | Right-Handed | Red Crumbs | Warm Ovens |
| Lady Macaron | Peanut-Butter-Punch | Minty Mist | Right-Handed | Red Crumbs | Milk Splashes |
| Sammy Shortbread | Oatmeal-Oomph | Cherry Glow | Left-Handed | Yellow Crumbs | Warm Ovens |
| Toby Tuile | Oatmeal-Oomph | Sprinkle Blast | Left-Handed | Red Crumbs | Milk Splashes |
| Otis Spunkmeyer | Fudge-Swirl | Cherry Glow | Right-Handed | Brown Crumbs | Cookie Jars |
| Mac Macadamia | Choco-Chunky | Sprinkle Blast | Right-Handed | Red Crumbs | Milk Splashes |
| Princess Pastry | Oatmeal-Oomph | Marshmallow Melt | Left-Handed | Red Crumbs | Milk Splashes |
| Baron Biscuit | Oatmeal-Oomph | Minty Mist | Right-Handed | Red Crumbs | Milk Splashes |
| Penny Palmier | Choco-Chunky | Caramel Drizzle | Right-Handed | Red Crumbs | Milk Splashes |
| Gaby Ginger | Oatmeal-Oomph | Caramel Drizzle | Left-Handed | Yellow Crumbs | Milk Splashes |
Clue 1
Rounding
We checked the big flour scale. The scale only shows rounded numbers. Round the numbers to find the 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.
T
70
300
2000
T
70
300
20
2000
3000
6000
700
2000
600
800
700
T
70
5000
600
2000
600
400
900
20
800
4000
50
2000
80
50
200
600
T
70
Round 73 to the nearest tenT
Round 1,912 to the nearest thousandE
Round 818 to the nearest hundredN
Round 919 to the nearest hundredR
Round 5,187 to the nearest thousandU
Round 707 to the nearest hundredO
Round 309 to the nearest hundredH
Round 80 to the nearest tenB
Round 361 to the nearest hundredP
Round 22 to the nearest tenI
Round 612 to the nearest hundredS
Round 4,135 to the nearest thousandK
Round 49 to the nearest tenL
Round 3,092 to the nearest thousandF
Round 6,291 to the nearest thousandD
Round 153 to the nearest hundredA
0/16 letters found
Clue 2
Addition
We found a list of stolen chocolate chips. Let us add them all up to see how many are gone and get a new 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.
T
740
579
652
T
740
579
823
652
859
318
T
740
823
808
318
542
823
T
740
579
T
740
579
652
808
823
922
579
T
740
579
252
781
682
398 + 342 =T
383 + 196 =H
362 + 320 =D
169 + 83 =A
283 + 639 =G
346 + 196 =W
463 + 396 =F
570 + 253 =I
369 + 412 =N
326 + 482 =R
423 + 229 =E
214 + 104 =S
0/12 letters found
Clue 3
Subtraction
The thief ate some cookies from the jar. Subtract the left-over cookies to find out how many the thief took!
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
633
436
883
T
633
436
332
883
636
332
561
561
335
232
528
883
109
606
636
370
332
391
418
561
775
391
232
561
436
883
561
956 - 323 =T
486 - 68 =K
794 - 358 =H
795 - 20 =P
377 - 145 =A
714 - 323 =L
613 - 85 =R
680 - 119 =S
599 - 229 =M
868 - 232 =F
1222 - 339 =E
649 - 43 =O
445 - 113 =I
547 - 212 =C
246 - 137 =D
0/15 letters found
Clue 4
Multiplication facts (1-12)
We see cookie trays with rows of cookies. Multiply the rows to find the total cookies and 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.
R
12
49
72
110
R
12
100
33
45
60
28
49
R
12
49
4
21
100
16
72
8
44
44
84
49
60
110
49
16
49
2 × 6 =R
11 × 4 =T
2 × 8 =N
10 × 10 =U
8 × 1 =A
9 × 5 =B
7 × 4 =W
3 × 7 =O
6 × 10 =S
12 × 7 =H
7 × 7 =E
3 × 11 =M
9 × 8 =D
10 × 11 =C
4 × 1 =F
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
We want to share the cupcakes evenly among the bakers. Divide them up to get the final clue about the thief!
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 ÷ 12 = ?
36 ÷ 12 = ?
16 ÷ 4 = ?
121 ÷ 11 = ?
42 ÷ 7 = ?
48 ÷ 6 = ?
12 ÷ 12 = ?
4 ÷ 2 = ?
7 ÷ 1 = ?
108 ÷ 12 = ?
24 ÷ 2 = ?
Step 2 — cross out the sentence with each answer
1.The villain blinds the guards with sugar sparkles, then distracts the dogs with sprinkle blast.
2.The villain creates a sticky fudge maze, then makes the floor slick with caramel drizzle.
3.The villain throws heavy chocolate chunks, then makes the floor slick with caramel drizzle.
4.The villain bashes through doors with oatmeal oomph, then freezes the room with minty mist.
5.The villain blocks the path with peanut butter, then freezes the room with minty mist.
6.The villain blinds the guards with sugar sparkles, then freezes the room with minty mist.
7.The villain blocks the path with peanut butter, then distracts the dogs with sprinkle blast.
8.The villain bashes through doors with oatmeal oomph, then distracts the dogs with sprinkle blast.
9.The villain blinds the guards with sugar sparkles, then makes the floor slick with caramel drizzle.
10.The villain blocks the path with peanut butter, then sticks the key in marshmallow melt.
11.The villain bashes through doors with oatmeal oomph, then lights the dark with cherry glow.
12.The villain blocks the path with peanut butter, then lights the dark with cherry glow.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Golden Cookie Mystery
Culprit: Ruth Wakefield (Peanut-Butter-Punch · Marshmallow Melt · Right-Handed · Red Crumbs · Milk Splashes)
- Clue 1 (Rounding): "THE THIEF DOES NOT USE SPRINKLE BLAST"Round 73 to the nearest ten = 70 (T) · Round 1,912 to the nearest thousand = 2000 (E) · Round 818 to the nearest hundred = 800 (N) · Round 919 to the nearest hundred = 900 (R) · Round 5,187 to the nearest thousand = 5000 (U) · Round 707 to the nearest hundred = 700 (O) · Round 309 to the nearest hundred = 300 (H) · Round 80 to the nearest ten = 80 (B) · Round 361 to the nearest hundred = 400 (P) · Round 22 to the nearest ten = 20 (I) · Round 612 to the nearest hundred = 600 (S) · Round 4,135 to the nearest thousand = 4000 (K) · Round 49 to the nearest ten = 50 (L) · Round 3,092 to the nearest thousand = 3000 (F) · Round 6,291 to the nearest thousand = 6000 (D) · Round 153 to the nearest hundred = 200 (A)
- Clue 2 (Addition): "THE THIEF STIRS WITH THE RIGHT HAND"398 + 342 = 740 (T) · 383 + 196 = 579 (H) · 362 + 320 = 682 (D) · 169 + 83 = 252 (A) · 283 + 639 = 922 (G) · 346 + 196 = 542 (W) · 463 + 396 = 859 (F) · 570 + 253 = 823 (I) · 369 + 412 = 781 (N) · 326 + 482 = 808 (R) · 423 + 229 = 652 (E) · 214 + 104 = 318 (S)
- Clue 3 (Subtraction): "THE THIEF IS SCARED OF MILK SPLASHES"956 - 323 = 633 (T) · 486 - 68 = 418 (K) · 794 - 358 = 436 (H) · 795 - 20 = 775 (P) · 377 - 145 = 232 (A) · 714 - 323 = 391 (L) · 613 - 85 = 528 (R) · 680 - 119 = 561 (S) · 599 - 229 = 370 (M) · 868 - 232 = 636 (F) · 1222 - 339 = 883 (E) · 649 - 43 = 606 (O) · 445 - 113 = 332 (I) · 547 - 212 = 335 (C) · 246 - 137 = 109 (D)
- Clue 4 (Multiplication facts (1-12)): "RED CRUMBS WERE FOUND AT THE SCENE"2 × 6 = 12 (R) · 11 × 4 = 44 (T) · 2 × 8 = 16 (N) · 10 × 10 = 100 (U) · 8 × 1 = 8 (A) · 9 × 5 = 45 (B) · 7 × 4 = 28 (W) · 3 × 7 = 21 (O) · 6 × 10 = 60 (S) · 12 × 7 = 84 (H) · 7 × 7 = 49 (E) · 3 × 11 = 33 (M) · 9 × 8 = 72 (D) · 10 × 11 = 110 (C) · 4 × 1 = 4 (F)
- Clue 5 (Division facts (1-12)): surviving statement (box 10) → Ruth Wakefield60 ÷ 12 = 5 · 36 ÷ 12 = 3 · 16 ÷ 4 = 4 · 121 ÷ 11 = 11 · 42 ÷ 7 = 6 · 48 ÷ 6 = 8 · 12 ÷ 12 = 1 · 4 ÷ 2 = 2 · 7 ÷ 1 = 7 · 108 ÷ 12 = 9 · 24 ÷ 2 = 12
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 1-2
- Theme
- The Golden Cookie Mystery — set in The Crumble Bakery
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects