🦁 AnimalsGrade 2Reading: grades 1-2MultiplicationSkip countingPlace valueAdditionDivision
The Mystery of the Missing Golden Acorn
Someone snuck into Sunny Valley Zoo and took the Golden Acorn! Help the Junior Rangers solve the math clues and catch the culprit.
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 | Animal Skill | Special Gear | Witness Sign | Fur Color | Snack Distraction |
|---|---|---|---|---|---|
| Barnaby Bear | Falcon Dive | Grappling Hook | Wears Right Glove | Bright Yellow | Sweet Bananas |
| Wally Walrus | Gorilla Power | Grappling Hook | Wears Left Glove | Bright Yellow | Sweet Bananas |
| Leo Lion | Cheetah Sprint | Camouflage Cape | Wears Left Glove | Bright Yellow | Fresh Apples |
| Toby Turtle | Cheetah Sprint | Golden Net | Wears Left Glove | Bright Yellow | Sweet Bananas |
| Kiki Koala | Kangaroo Hop | Super Sound Whistle | Wears Left Glove | Dark Brown | Sweet Bananas |
| Pippa Penguin | Falcon Dive | Super Sound Whistle | Wears Right Glove | Bright Yellow | Crunchy Carrots |
| Molly Mouse | Gorilla Power | Night Vision Goggles | Wears Right Glove | Snowy White | Sweet Bananas |
| Fiona Hippo | Cheetah Sprint | Grappling Hook | Wears Right Glove | Bright Yellow | Sweet Bananas |
| Steve Irwin | Gorilla Power | Super Sound Whistle | Wears Right Glove | Snowy White | Fresh Apples |
| Ziggy Zebra | Falcon Dive | Grappling Hook | Wears Left Glove | Bright Yellow | Sweet Bananas |
| Felix Fox | Kangaroo Hop | Night Vision Goggles | Wears Right Glove | Bright Yellow | Sweet Bananas |
| Penny Panda | Cheetah Sprint | Super Sound Whistle | Wears Right Glove | Bright Yellow | Fresh Apples |
| David Attenborough | Cheetah Sprint | Golden Net | Wears Right Glove | Snowy White | Fresh Apples |
| Jane Goodall | Cheetah Sprint | Night Vision Goggles | Wears Right Glove | Dark Brown | Sweet Bananas |
| Quincy Quail | Cheetah Sprint | Camouflage Cape | Wears Left Glove | Dark Brown | Fresh Apples |
| Chester Cheetah | Cheetah Sprint | Golden Net | Wears Right Glove | Bright Yellow | Sweet Bananas |
| Ollie Otter | Gorilla Power | Grappling Hook | Wears Right Glove | Bright Yellow | Sweet Bananas |
| Benny Badger | Kangaroo Hop | Camouflage Cape | Wears Right Glove | Snowy White | Fresh Apples |
| Bella Beaver | Kangaroo Hop | Super Sound Whistle | Wears Right Glove | Bright Yellow | Fresh Apples |
| Daisy Duck | Kangaroo Hop | Camouflage Cape | Wears Left Glove | Bright Yellow | Fresh Apples |
| Sammy Squirrel | Kangaroo Hop | Grappling Hook | Wears Left Glove | Bright Yellow | Fresh Apples |
Clue 1
Multiplication facts (1-12)
The zookeeper counted rows of crates in the animal barn 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
27
72
24
5
16
120
120
2
16
35
77
45
24
84
35
45
T
27
80
84
24
2
48
45
120
77
24
35
35
24
T
27
9 × 3 =T
11 × 7 =D
5 × 9 =O
7 × 5 =N
12 × 10 =L
7 × 12 =S
8 × 2 =I
3 × 8 =E
4 × 12 =G
5 × 1 =V
10 × 8 =U
2 × 1 =A
6 × 12 =H
0/13 letters found
Clue 2
Skip counting
We followed animal footprints by counting by twos down the park path.
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
6
12
100
140
33
8
8
8
15
W
6
15
14
25
70
28
33
70
140
100
39
33
55
12
14
39
100
39
15
140
36
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10W
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18G
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32V
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160N
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35L
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65R
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90O
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18I
0/14 letters found
Clue 3
Place value
A digital scale at the vet clinic showed tens and ones to unlock the box.
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
33
18
51
27
20
87
87
52
20
12
95
87
20
59
59
51
62
44
12
95
39
51
51
T
33
55
52
12
52
12
52
95
What number has 3 tens and 3 ones?T
What number has 5 tens and 9 ones?P
What number has 2 tens and 7 ones?V
What number has 9 tens and 5 ones?S
What number has 5 tens and 1 one?E
What number has 8 tens and 7 ones?L
What number has 5 tens and 2 ones?A
What number has 3 tens and 9 ones?W
What number has 2 tens and 0 ones?I
What number has 4 tens and 4 ones?O
What number has 5 tens and 5 ones?B
What number has 1 ten and 8 ones?H
What number has 1 ten and 2 ones?N
What number has 6 tens and 2 ones?D
0/14 letters found
Clue 4
Addition
We added up all the lost feathers found near the duck pond.
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
45
69
68
94
68
T
45
68
31
T
45
66
81
68
29
76
46
75
94
39
34
66
58
69
T
45
77
68
50
50
76
37
29
46
34
13 + 32 =T
22 + 46 =E
52 + 29 =V
41 + 53 =D
18 + 40 =G
52 + 23 =N
23 + 23 =U
27 + 42 =H
44 + 22 =I
15 + 16 =C
12 + 22 =R
20 + 9 =F
17 + 20 =W
21 + 29 =L
34 + 43 =Y
42 + 34 =O
16 + 23 =B
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
We shared treats equally among the monkeys to hear their report.
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
50 ÷ 5 = ?
18 ÷ 3 = ?
121 ÷ 11 = ?
21 ÷ 7 = ?
144 ÷ 12 = ?
4 ÷ 1 = ?
2 ÷ 1 = ?
63 ÷ 9 = ?
56 ÷ 7 = ?
25 ÷ 5 = ?
2 ÷ 2 = ?
Step 2 — cross out the sentence with each answer
1.The villain zoomed past using cheetah sprint, then put on night vision goggles.
2.The villain swooped down using falcon dive, then blew a super sound whistle.
3.The villain zipped off with dolphin swim, then blew a super sound whistle.
4.The villain smashed through using gorilla power, then pulled on a camouflage cape.
5.The villain zipped off with dolphin swim, then fired a grappling hook.
6.The villain bounced away with kangaroo hop, then put on night vision goggles.
7.The villain smashed through using gorilla power, then blew a super sound whistle.
8.The villain bounced away with kangaroo hop, then blew a super sound whistle.
9.The villain smashed through using gorilla power, then fired a grappling hook.
10.The villain zoomed past using cheetah sprint, then fired a grappling hook.
11.The villain swooped down using falcon dive, then fired a grappling hook.
12.The villain zoomed past using cheetah sprint, then blew a super sound whistle.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Missing Golden Acorn
Culprit: Ollie Otter (Gorilla Power · Grappling Hook · Wears Right Glove · Bright Yellow · Sweet Bananas)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT USE A GOLDEN NET"9 × 3 = 27 (T) · 11 × 7 = 77 (D) · 5 × 9 = 45 (O) · 7 × 5 = 35 (N) · 12 × 10 = 120 (L) · 7 × 12 = 84 (S) · 8 × 2 = 16 (I) · 3 × 8 = 24 (E) · 4 × 12 = 48 (G) · 5 × 1 = 5 (V) · 10 × 8 = 80 (U) · 2 × 1 = 2 (A) · 6 × 12 = 72 (H)
- Clue 2 (Skip counting): "WITNESS SAW A GLOVE ON THE RIGHT HAND"Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (W) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (E) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (G) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (V) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (N) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (T) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (D) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (R) · Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90 = 70 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (I)
- Clue 3 (Place value): "THE VILLAIN SLIPPED ON SWEET BANANAS"What number has 3 tens and 3 ones? = 33 (T) · What number has 5 tens and 9 ones? = 59 (P) · What number has 2 tens and 7 ones? = 27 (V) · What number has 9 tens and 5 ones? = 95 (S) · What number has 5 tens and 1 one? = 51 (E) · What number has 8 tens and 7 ones? = 87 (L) · What number has 5 tens and 2 ones? = 52 (A) · What number has 3 tens and 9 ones? = 39 (W) · What number has 2 tens and 0 ones? = 20 (I) · What number has 4 tens and 4 ones? = 44 (O) · What number has 5 tens and 5 ones? = 55 (B) · What number has 1 ten and 8 ones? = 18 (H) · What number has 1 ten and 2 ones? = 12 (N) · What number has 6 tens and 2 ones? = 62 (D)
- Clue 4 (Addition): "THE DETECTIVE FOUND BRIGHT YELLOW FUR"13 + 32 = 45 (T) · 22 + 46 = 68 (E) · 52 + 29 = 81 (V) · 41 + 53 = 94 (D) · 18 + 40 = 58 (G) · 52 + 23 = 75 (N) · 23 + 23 = 46 (U) · 27 + 42 = 69 (H) · 44 + 22 = 66 (I) · 15 + 16 = 31 (C) · 12 + 22 = 34 (R) · 20 + 9 = 29 (F) · 17 + 20 = 37 (W) · 21 + 29 = 50 (L) · 34 + 43 = 77 (Y) · 42 + 34 = 76 (O) · 16 + 23 = 39 (B)
- Clue 5 (Division facts (1-12)): surviving statement (box 9) → Ollie Otter50 ÷ 5 = 10 · 18 ÷ 3 = 6 · 121 ÷ 11 = 11 · 21 ÷ 7 = 3 · 144 ÷ 12 = 12 · 4 ÷ 1 = 4 · 2 ÷ 1 = 2 · 63 ÷ 9 = 7 · 56 ÷ 7 = 8 · 25 ÷ 5 = 5 · 2 ÷ 2 = 1
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Multiplication, Skip counting, Place value, Addition, Division
- Reading level
- grades 1-2
- Theme
- The Mystery of the Missing Golden Acorn — set in Sunny Valley Zoo
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects