Grade 2Reading: grades 1-2AdditionSubtractionPlace valueSkip countingMissing addends
The Secret Map Mystery
Someone took the golden map from the camp cabin! We need to find the Snack Thief before sunset. Follow the clues to save the day!
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 | Jungle Skill | Special Trick | Eyes | Hair Style | Weakness |
|---|---|---|---|---|---|
| Jax | jungle climbing | high jump | no glasses | straight hair | bubble water |
| Ben | map reading | night vision | wears glasses | curly hair | shiny badges |
| Joy | rope swinging | high jump | no glasses | spiky hair | banana peels |
| Pip | jungle climbing | super splash | wears glasses | straight hair | bubble water |
| Eli | fast running | high jump | wears glasses | straight hair | banana peels |
| Roy | loud whistling | berry blast | wears glasses | spiky hair | shiny badges |
| Rex | map reading | beast speak | wears glasses | straight hair | shiny badges |
| Meg | jungle climbing | high jump | wears glasses | straight hair | shiny badges |
| Dan | jungle climbing | super splash | wears glasses | curly hair | banana peels |
| Kai | loud whistling | beast speak | no glasses | straight hair | shiny badges |
| Leo | fast running | berry blast | wears glasses | straight hair | bubble water |
| Tom | jungle climbing | super splash | no glasses | straight hair | banana peels |
| Max | map reading | high jump | wears glasses | spiky hair | bubble water |
| Amy | loud whistling | super splash | no glasses | straight hair | shiny badges |
| Guy | map reading | beast speak | no glasses | spiky hair | banana peels |
| Ash | jungle climbing | high jump | no glasses | curly hair | shiny badges |
| Dot | fast running | beast speak | wears glasses | straight hair | banana peels |
| Zoe | jungle climbing | beast speak | wears glasses | straight hair | shiny badges |
| Fay | fast running | night vision | wears glasses | straight hair | shiny badges |
| Ivy | jungle climbing | berry blast | wears glasses | spiky hair | banana peels |
| Kip | map reading | night vision | wears glasses | straight hair | shiny badges |
Clue 1
Addition
We counted the footprint signs. We added three footprints from the mud and four from the grass. How many did we find?
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
29
64
82
44
61
46
24
28
T
29
69
61
46
46
81
T
29
64
28
63
64
85
68
76
72
14 + 15 =T
45 + 31 =M
45 + 36 =O
30 + 34 =H
56 + 26 =E
38 + 25 =G
11 + 13 =D
22 + 47 =C
25 + 19 =B
55 + 30 =J
17 + 11 =I
28 + 33 =A
48 + 20 =U
32 + 14 =N
50 + 22 =P
0/15 letters found
Clue 2
Subtraction
We had ten snack bars for our search. We ate six of them while looking. How many do we have left?
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
42
34
84
81
69
47
66
80
T
42
34
71
84
52
85
84
47
46
81
72
18
47
81
81
84
81
57 - 15 =T
79 - 32 =A
96 - 27 =N
102 - 17 =W
91 - 19 =G
77 - 31 =R
64 - 12 =F
57 - 23 =H
82 - 1 =S
112 - 32 =K
102 - 36 =C
82 - 11 =I
85 - 1 =E
39 - 21 =L
0/14 letters found
Clue 3
Place value
The lock box has a code. It has two tens and five ones. What number opens 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.
S
77
43
61
46
13
45
83
88
S
77
89
16
35
55
79
61
45
14
13
S
77
What number has 7 tens and 7 ones?S
What number has 8 tens and 3 ones?O
What number has 4 tens and 3 ones?C
What number has 3 tens and 5 ones?N
What number has 1 ten and 3 ones?E
What number has 1 ten and 6 ones?I
What number has 1 ten and 4 ones?G
What number has 4 tens and 6 ones?R
What number has 8 tens and 8 ones?F
What number has 6 tens and 1 one?A
What number has 5 tens and 5 ones?Y
What number has 7 tens and 9 ones?B
What number has 4 tens and 5 ones?D
What number has 8 tens and 9 ones?H
0/14 letters found
Clue 4
Skip counting
We followed the trail of glowing stones. They were placed in a pattern of five then ten then fifteen. What is the next number?
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
F
16
80
120
90
21
45
55
80
80
35
12
12
70
15
25
70
35
45
36
42
90
42
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42C
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140U
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35R
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65M
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48E
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45T
0/14 letters found
Clue 5
Missing addends — the last clue
We need eight gold coins to cross the bridge. We only have five coins. How many more do we need to find?
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
10 + ___ = 12
7 + ___ = 11
5 + ___ = 16
2 + ___ = 12
5 + ___ = 17
8 + ___ = 9
3 + ___ = 8
5 + ___ = 14
2 + ___ = 5
6 + ___ = 13
4 + ___ = 12
Step 2 — cross out the sentence with each answer
1.The villain climbs the tallest jungle trees, then jumps over the high bushes.
2.The villain reads the secret map, then talks to the jungle birds.
3.The villain climbs the tallest jungle trees, then sees in the dark.
4.The villain reads the secret map, then sees in the dark.
5.The villain swings on wild vines, then makes a huge water splash.
6.The villain runs fast down the trail, then sees in the dark.
7.The villain reads the secret map, then makes a huge water splash.
8.The villain whistles a loud song, then makes a huge water splash.
9.The villain reads the secret map, then throws a messy berry blast.
10.The villain swings on wild vines, then talks to the jungle birds.
11.The villain climbs the tallest jungle trees, then talks to the jungle birds.
12.The villain whistles a loud song, then talks to the jungle birds.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Secret Map Mystery
Culprit: Fay (fast running · night vision · wears glasses · straight hair · shiny badges)
- Clue 1 (Addition): "THE BANDIT CANNOT HIGH JUMP"14 + 15 = 29 (T) · 45 + 31 = 76 (M) · 45 + 36 = 81 (O) · 30 + 34 = 64 (H) · 56 + 26 = 82 (E) · 38 + 25 = 63 (G) · 11 + 13 = 24 (D) · 22 + 47 = 69 (C) · 25 + 19 = 44 (B) · 55 + 30 = 85 (J) · 17 + 11 = 28 (I) · 28 + 33 = 61 (A) · 48 + 20 = 68 (U) · 32 + 14 = 46 (N) · 50 + 22 = 72 (P)
- Clue 2 (Subtraction): "THE SNACK THIEF WEARS GLASSES"57 - 15 = 42 (T) · 79 - 32 = 47 (A) · 96 - 27 = 69 (N) · 102 - 17 = 85 (W) · 91 - 19 = 72 (G) · 77 - 31 = 46 (R) · 64 - 12 = 52 (F) · 57 - 23 = 34 (H) · 82 - 1 = 81 (S) · 112 - 32 = 80 (K) · 102 - 36 = 66 (C) · 82 - 11 = 71 (I) · 85 - 1 = 84 (E) · 39 - 21 = 18 (L)
- Clue 3 (Place value): "SCARED OF SHINY BADGES"What number has 7 tens and 7 ones? = 77 (S) · What number has 8 tens and 3 ones? = 83 (O) · What number has 4 tens and 3 ones? = 43 (C) · What number has 3 tens and 5 ones? = 35 (N) · What number has 1 ten and 3 ones? = 13 (E) · What number has 1 ten and 6 ones? = 16 (I) · What number has 1 ten and 4 ones? = 14 (G) · What number has 4 tens and 6 ones? = 46 (R) · What number has 8 tens and 8 ones? = 88 (F) · What number has 6 tens and 1 one? = 61 (A) · What number has 5 tens and 5 ones? = 55 (Y) · What number has 7 tens and 9 ones? = 79 (B) · What number has 4 tens and 5 ones? = 45 (D) · What number has 8 tens and 9 ones? = 89 (H)
- Clue 4 (Skip counting): "FOUND SMOOTH HAIR AT SCENE"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (F) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (C) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (O) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (R) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (M) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90 = 70 (A) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (E) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21 = 15 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (T)
- Clue 5 (Missing addends): surviving statement (box 6) → Fay10 + ___ = 12 = 2 · 7 + ___ = 11 = 4 · 5 + ___ = 16 = 11 · 2 + ___ = 12 = 10 · 5 + ___ = 17 = 12 · 8 + ___ = 9 = 1 · 3 + ___ = 8 = 5 · 5 + ___ = 14 = 9 · 2 + ___ = 5 = 3 · 6 + ___ = 13 = 7 · 4 + ___ = 12 = 8
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Addition, Subtraction, Place value, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Secret Map Mystery — set in Adventure Island
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects