Grade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Great Jungle Compass Caper
Someone took the golden compass from Camp Sun! Help the camp explorers find the bandit.
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 Tool | Animal Pal | Dominant Hand | Headwear | Secret Trap |
|---|---|---|---|---|---|
| Kai | Golden Net | Sea Turtles | Right Handed | Sun Hat | Loud Whistles |
| Nora | Rope Launcher | Parrots | Right Handed | Sun Hat | Loud Whistles |
| Emma | Magic Compass | Tree Frogs | Right Handed | Sun Hat | Shiny Mirrors |
| Chloe | Golden Net | Fruit Bats | Right Handed | Sun Hat | Shiny Mirrors |
| Mia | Super Flashlight | Fruit Bats | Left Handed | Red Bandana | Loud Whistles |
| Liam | Magic Compass | Monkeys | Right Handed | Sun Hat | Shiny Mirrors |
| Noah | Super Flashlight | Parrots | Right Handed | Sun Hat | Shiny Mirrors |
| Sam | Rope Launcher | Parrots | Left Handed | Sun Hat | Shiny Mirrors |
| Grace | Rope Launcher | Monkeys | Right Handed | Red Bandana | Shiny Mirrors |
| Cole | Magic Compass | Monkeys | Left Handed | Red Bandana | Loud Whistles |
| Lily | Rope Launcher | Fruit Bats | Left Handed | Red Bandana | Shiny Mirrors |
| Ruby | Magic Compass | Fruit Bats | Left Handed | Sun Hat | Shiny Mirrors |
| Toby | Map Decoder | Fruit Bats | Right Handed | Sun Hat | Sweet Bananas |
| Maya | Super Flashlight | Sea Turtles | Left Handed | Blue Cap | Shiny Mirrors |
| Zoe | Map Decoder | Sea Turtles | Right Handed | Sun Hat | Loud Whistles |
| Leo | Golden Net | Monkeys | Left Handed | Red Bandana | Sweet Bananas |
| Ava | Map Decoder | Fruit Bats | Right Handed | Blue Cap | Shiny Mirrors |
| Owen | Map Decoder | Sea Turtles | Right Handed | Red Bandana | Loud Whistles |
| Ivy | Magic Compass | Fruit Bats | Left Handed | Red Bandana | Shiny Mirrors |
| Jack | Super Flashlight | Monkeys | Left Handed | Red Bandana | Shiny Mirrors |
| Luke | Magic Compass | Sea Turtles | Right Handed | Sun Hat | Shiny Mirrors |
Clue 1
Addition
We add up the gold coins left on the trail to unlock our 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
8
5
20
16
7
10
13
15
T
8
13
11
20
12
10
11
T
8
17
12
20
2
11
10
4
20
9
12
4 + 4 =T
1 + 1 =M
7 + 3 =N
6 + 5 =O
4 + 9 =D
5 + 7 =S
4 + 3 =A
2 + 2 =K
10 + 7 =U
8 + 12 =E
6 + 9 =I
4 + 12 =B
3 + 2 =H
5 + 4 =Y
0/14 letters found
Clue 2
Subtraction
We subtract the fallen leaves from the pile to read the next 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.
W
4
12
13
8
14
6
6
6
2
W
4
2
7
12
3
15
13
15
2
8
16
14
16
10
2
11
15
5
18
16
14
7
13 - 9 =W
4 - 2 =A
15 - 9 =S
20 - 8 =I
14 - 1 =T
15 - 5 =M
8 - 5 =G
19 - 1 =L
19 - 4 =H
12 - 1 =P
8 - 1 =R
19 - 3 =D
10 - 2 =N
12 - 7 =O
18 - 4 =E
0/15 letters found
Clue 3
Skip counting
We count by twos along the stepping stones to find another 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.
S
14
50
120
90
45
S
14
90
S
14
140
60
S
14
80
65
16
8
22
65
12
12
120
12
S
14
45
120
S
14
45
120
26
45
80
140
22
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26M
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20N
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18R
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110U
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60C
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30P
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75I
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12Y
0/14 letters found
Clue 4
Place value
We look at the tens and ones on the tree house door code.
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
62
35
53
79
58
70
88
53
79
54
70
63
79
20
70
15
63
54
20
23
70
63
54
What number has 6 tens and 2 ones?F
What number has 2 tens and 0 ones?E
What number has 2 tens and 3 ones?P
What number has 7 tens and 9 ones?N
What number has 5 tens and 8 ones?D
What number has 5 tens and 4 ones?H
What number has 5 tens and 3 ones?U
What number has 6 tens and 3 ones?T
What number has 1 ten and 5 ones?R
What number has 8 tens and 8 ones?S
What number has 3 tens and 5 ones?O
What number has 7 tens and 0 ones?A
0/12 letters found
Clue 5
Missing addends — the last clue
We figure out how many missing berries fill the box to get the final 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
5 + ___ = 8
7 + ___ = 16
9 + ___ = 11
1 + ___ = 7
4 + ___ = 11
8 + ___ = 20
5 + ___ = 16
9 + ___ = 17
4 + ___ = 8
1 + ___ = 11
3 + ___ = 4
Step 2 — cross out the sentence with each answer
1.The villain swiped the scout badge, then paddled down the river.
2.The villain stole the jungle map, then paddled down the river.
3.The villain took the golden compass, then hid inside the hollow log.
4.The villain took the golden compass, then dashed over the rope bridge.
5.The villain stole the jungle map, then dashed over the rope bridge.
6.The villain swiped the scout badge, then dashed over the rope bridge.
7.The villain grabbed the secret key, then paddled down the river.
8.The villain swiped the scout badge, then ran past the parrot tree.
9.The villain grabbed the secret key, then ran past the parrot tree.
10.The villain grabbed the secret key, then zipped down the vine.
11.The villain swiped the scout badge, then hid inside the hollow log.
12.The villain snapped the camp flag, then hid inside the hollow log.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Jungle Compass Caper
Culprit: Emma (Magic Compass · Tree Frogs · Right Handed · Sun Hat · Shiny Mirrors)
- Clue 1 (Addition): "THE BANDIT DOES NOT USE MONKEYS"4 + 4 = 8 (T) · 1 + 1 = 2 (M) · 7 + 3 = 10 (N) · 6 + 5 = 11 (O) · 4 + 9 = 13 (D) · 5 + 7 = 12 (S) · 4 + 3 = 7 (A) · 2 + 2 = 4 (K) · 10 + 7 = 17 (U) · 8 + 12 = 20 (E) · 6 + 9 = 15 (I) · 4 + 12 = 16 (B) · 3 + 2 = 5 (H) · 5 + 4 = 9 (Y)
- Clue 2 (Subtraction): "WITNESS SAW A RIGHT HANDED MAP HOLDER"13 - 9 = 4 (W) · 4 - 2 = 2 (A) · 15 - 9 = 6 (S) · 20 - 8 = 12 (I) · 14 - 1 = 13 (T) · 15 - 5 = 10 (M) · 8 - 5 = 3 (G) · 19 - 1 = 18 (L) · 19 - 4 = 15 (H) · 12 - 1 = 11 (P) · 8 - 1 = 7 (R) · 19 - 3 = 16 (D) · 10 - 2 = 8 (N) · 12 - 7 = 5 (O) · 18 - 4 = 14 (E)
- Clue 3 (Skip counting): "SCOUTS USED SHINY MIRRORS TO STOP THEM"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (M) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (N) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (R) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60 = 50 (C) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (P) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (O) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (I) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (Y)
- Clue 4 (Place value): "FOUND A SUN HAT NEAR THE PATH"What number has 6 tens and 2 ones? = 62 (F) · What number has 2 tens and 0 ones? = 20 (E) · What number has 2 tens and 3 ones? = 23 (P) · What number has 7 tens and 9 ones? = 79 (N) · What number has 5 tens and 8 ones? = 58 (D) · What number has 5 tens and 4 ones? = 54 (H) · What number has 5 tens and 3 ones? = 53 (U) · What number has 6 tens and 3 ones? = 63 (T) · What number has 1 ten and 5 ones? = 15 (R) · What number has 8 tens and 8 ones? = 88 (S) · What number has 3 tens and 5 ones? = 35 (O) · What number has 7 tens and 0 ones? = 70 (A)
- Clue 5 (Missing addends): surviving statement (box 5) → Emma5 + ___ = 8 = 3 · 7 + ___ = 16 = 9 · 9 + ___ = 11 = 2 · 1 + ___ = 7 = 6 · 4 + ___ = 11 = 7 · 8 + ___ = 20 = 12 · 5 + ___ = 16 = 11 · 9 + ___ = 17 = 8 · 4 + ___ = 8 = 4 · 1 + ___ = 11 = 10 · 3 + ___ = 4 = 1
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Addition, Subtraction, Skip counting, Place value, Missing addends
- Reading level
- grades 1-2
- Theme
- The Great Jungle Compass Caper — set in Jungle Island
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects