Grade 2Reading: grades 1-2Place valueAdditionSubtractionSkip countingMissing addends
The Case of the Map Snatcher
The big treasure map is gone, and so is the Camp Leader! Someone snuck into camp at night and grabbed them both. Now the brave kid explorers must follow the clues and catch the Map Snatcher.
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 | Adventure Skill | Gadget | Explorer Type | Bandana | Weak Spot |
|---|---|---|---|---|---|
| Aria | River Rafting | Bright Lantern | Girl | Green Bandana | Sneezes at Flowers |
| Theo | Rock Climbing | Grappling Hook | Girl | Red Bandana | Sneezes at Flowers |
| Mateo | Rock Climbing | Loud Whistle | Girl | Red Bandana | Ticklish |
| Finn | Tree Hiding | Loud Whistle | Girl | Red Bandana | Sneezes at Flowers |
| Zara | Cave Crawling | Loud Whistle | Boy | Red Bandana | Sneezes at Flowers |
| Mira | Vine Swinging | Loud Whistle | Boy | Red Bandana | Sneezes at Flowers |
| Otto | Tree Hiding | Smoke Bomb | Girl | Red Bandana | Sneezes at Flowers |
| Cole | Vine Swinging | Smoke Bomb | Girl | Green Bandana | Scared of Frogs |
| Max | Vine Swinging | Loud Whistle | Boy | Green Bandana | Ticklish |
| Nina | Vine Swinging | Grappling Hook | Girl | Green Bandana | Ticklish |
| Bea | Vine Swinging | Net Trap | Girl | Red Bandana | Scared of Frogs |
| Diego | River Rafting | Smoke Bomb | Girl | Green Bandana | Scared of Frogs |
| Rosa | Rock Climbing | Grappling Hook | Girl | Green Bandana | Sneezes at Flowers |
| Ruby | Cave Crawling | Bright Lantern | Girl | Red Bandana | Sneezes at Flowers |
| Maya | River Rafting | Smoke Bomb | Boy | Red Bandana | Sneezes at Flowers |
| Sam | Rock Climbing | Bright Lantern | Boy | Red Bandana | Ticklish |
| Kai | Tree Hiding | Grappling Hook | Girl | Red Bandana | Sneezes at Flowers |
| Lily | Vine Swinging | Loud Whistle | Boy | Red Bandana | Scared of Frogs |
| Jack | Vine Swinging | Bright Lantern | Girl | Blue Bandana | Scared of Frogs |
| Ella | Vine Swinging | Smoke Bomb | Girl | Red Bandana | Scared of Frogs |
| Tess | Vine Swinging | Smoke Bomb | Girl | Blue Bandana | Ticklish |
Clue 1
Place value (tens & ones)
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
63
27
22
26
16
83
83
31
16
56
67
31
56
56
94
T
63
84
83
94
90
31
90
27
16
99
T
63
83
22
What number has 6 tens and 3 ones?T
What number has 9 tens and 9 ones?S
What number has 2 tens and 7 ones?H
What number has 9 tens and 4 ones?O
What number has 9 tens and 0 ones?W
What number has 8 tens and 3 ones?L
What number has 3 tens and 1 one?A
What number has 8 tens and 4 ones?B
What number has 2 tens and 2 ones?E
What number has 1 ten and 6 ones?I
What number has 5 tens and 6 ones?N
What number has 6 tens and 7 ones?C
What number has 2 tens and 6 ones?V
0/13 letters found
Clue 2
Addition
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
82
96
26
70
88
55
76
76
76
A
82
96
A
82
54
26
60
38
60
89
88
39
51
51
41 + 41 =A
18 + 21 =O
22 + 29 =F
19 + 7 =I
45 + 25 =T
23 + 15 =L
28 + 26 =G
36 + 19 =E
44 + 44 =N
51 + 25 =S
32 + 57 =U
48 + 48 =W
24 + 36 =R
0/13 letters found
Clue 3
Subtraction
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
12
50
W
12
54
11
50
63
62
27
52
W
12
50
34
64
54
80
63
84
86
50
11
45
27
27
54
45
80
64
80
50
50
72
50
63
32 - 20 =W
58 - 24 =R
103 - 19 =T
114 - 28 =H
81 - 29 =O
60 - 15 =I
80 - 18 =F
91 - 28 =D
68 - 4 =S
31 - 20 =V
61 - 34 =L
106 - 26 =N
84 - 30 =A
54 - 4 =E
87 - 15 =Z
0/15 letters found
Clue 4
Skip counting
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
36
50
14
20
42
A
36
6
20
A
36
6
A
36
30
A
36
25
21
14
90
65
42
14
24
130
6
20
Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ▢, 39, 42A
Skip-count by 5s — fill the blank: 5, 10, 15, ▢, 25, 30D
Skip-count by 10s — fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ▢, 140, 150I
Skip-count by 5s — fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ▢, 55, 60R
Skip-count by 2s — fill the blank: 2, 4, ▢, 8, 10N
Skip-count by 5s — fill the blank: 5, 10, 15, 20, 25, ▢, 35, 40W
Skip-count by 10s — fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ▢, 100, 110F
Skip-count by 5s — fill the blank: 5, 10, 15, 20, ▢, 30, 35S
Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ▢, 45, 48B
Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, ▢, 24, 27L
Skip-count by 2s — fill the blank: 2, 4, 6, 8, 10, 12, ▢, 16, 18E
Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, 21, ▢, 27, 30H
Skip-count by 5s — fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ▢, 70, 75T
0/13 letters found
Clue 5
Missing addends — the last 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
3 + ▢ = 6
4 + ▢ = 5
4 + ▢ = 9
5 + ▢ = 16
7 + ▢ = 14
5 + ▢ = 17
1 + ▢ = 3
2 + ▢ = 8
4 + ▢ = 13
10 + ▢ = 20
3 + ▢ = 11
Step 2 — cross out the sentence with each answer
1.The villain sneaks through the caves, then shines a bright lantern.
2.The villain floats up the river, then throws a grappling hook.
3.The villain hides up in the trees, then drops a smoke bomb.
4.The villain hides up in the trees, then throws a grappling hook.
5.The villain climbs down the rocks, then throws a grappling hook.
6.The villain swings in on a vine, then sets a net trap.
7.The villain floats up the river, then shines a bright lantern.
8.The villain swings in on a vine, then shines a bright lantern.
9.The villain sneaks through the caves, then blows a loud whistle.
10.The villain sneaks through the caves, then drops a smoke bomb.
11.The villain hides up in the trees, then sets a net trap.
12.The villain sneaks through the caves, then sets a net trap.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Map Snatcher
Culprit: Kai (Tree Hiding · Grappling Hook · Girl · Red Bandana · Sneezes at Flowers)
- Clue 1 (Place value (tens & ones)): "THE VILLAIN CANNOT BLOW A WHISTLE"What number has 6 tens and 3 ones? = 63 (T) · What number has 9 tens and 9 ones? = 99 (S) · What number has 2 tens and 7 ones? = 27 (H) · What number has 9 tens and 4 ones? = 94 (O) · What number has 9 tens and 0 ones? = 90 (W) · What number has 8 tens and 3 ones? = 83 (L) · What number has 3 tens and 1 one? = 31 (A) · What number has 8 tens and 4 ones? = 84 (B) · What number has 2 tens and 2 ones? = 22 (E) · What number has 1 ten and 6 ones? = 16 (I) · What number has 5 tens and 6 ones? = 56 (N) · What number has 6 tens and 7 ones? = 67 (C) · What number has 2 tens and 6 ones? = 26 (V)
- Clue 2 (Addition): "A WITNESS SAW A GIRL RUN OFF"41 + 41 = 82 (A) · 18 + 21 = 39 (O) · 22 + 29 = 51 (F) · 19 + 7 = 26 (I) · 45 + 25 = 70 (T) · 23 + 15 = 38 (L) · 28 + 26 = 54 (G) · 36 + 19 = 55 (E) · 44 + 44 = 88 (N) · 51 + 25 = 76 (S) · 32 + 57 = 89 (U) · 48 + 48 = 96 (W) · 24 + 36 = 60 (R)
- Clue 3 (Subtraction): "WE WAVED FLOWERS AND THE VILLAIN SNEEZED"32 - 20 = 12 (W) · 58 - 24 = 34 (R) · 103 - 19 = 84 (T) · 114 - 28 = 86 (H) · 81 - 29 = 52 (O) · 60 - 15 = 45 (I) · 80 - 18 = 62 (F) · 91 - 28 = 63 (D) · 68 - 4 = 64 (S) · 31 - 20 = 11 (V) · 61 - 34 = 27 (L) · 106 - 26 = 80 (N) · 84 - 30 = 54 (A) · 54 - 4 = 50 (E) · 87 - 15 = 72 (Z)
- Clue 4 (Skip counting): "A RED BANDANA WAS LEFT BEHIND"Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ▢, 39, 42 = 36 (A) · Skip-count by 5s — fill the blank: 5, 10, 15, ▢, 25, 30 = 20 (D) · Skip-count by 10s — fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ▢, 140, 150 = 130 (I) · Skip-count by 5s — fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ▢, 55, 60 = 50 (R) · Skip-count by 2s — fill the blank: 2, 4, ▢, 8, 10 = 6 (N) · Skip-count by 5s — fill the blank: 5, 10, 15, 20, 25, ▢, 35, 40 = 30 (W) · Skip-count by 10s — fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ▢, 100, 110 = 90 (F) · Skip-count by 5s — fill the blank: 5, 10, 15, 20, ▢, 30, 35 = 25 (S) · Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ▢, 45, 48 = 42 (B) · Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, ▢, 24, 27 = 21 (L) · Skip-count by 2s — fill the blank: 2, 4, 6, 8, 10, 12, ▢, 16, 18 = 14 (E) · Skip-count by 3s — fill the blank: 3, 6, 9, 12, 15, 18, 21, ▢, 27, 30 = 24 (H) · Skip-count by 5s — fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ▢, 70, 75 = 65 (T)
- Clue 5 (Missing addends): surviving statement (box 4) → Kai3 + ▢ = 6 = 3 · 4 + ▢ = 5 = 1 · 4 + ▢ = 9 = 5 · 5 + ▢ = 16 = 11 · 7 + ▢ = 14 = 7 · 5 + ▢ = 17 = 12 · 1 + ▢ = 3 = 2 · 2 + ▢ = 8 = 6 · 4 + ▢ = 13 = 9 · 10 + ▢ = 20 = 10 · 3 + ▢ = 11 = 8
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Addition, Subtraction, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Case of the Map Snatcher — set in Camp Greenleaf deep in the jungle
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects