Math Mysteries
Grade 1Reading: grades 1-2Place valueAdditionSubtractionSkip countingMissing addends

The Great Jungle Map Hunt

The Golden Map is gone! Someone took it from the Camp Lodge. We must find it before sunset. Help us find the Map Sneak!

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameExplorer ToolCamp BadgeWriting HandHelmet ColorFavorite Snack
Zoemagnifying glasstracking badgeleft-handed writeryellow helmetsweet berries
Indianapocket lanternfishing badgeleft-handed writeryellow helmetsalty pretzels
Rexpocket lanterncamping badgeright-handed writeryellow helmetsour apples
Rosepocket lanternfishing badgeleft-handed writerblue helmetsweet berries
Lukerope lassocamping badgeleft-handed writerblue helmetsweet berries
Diegobrass spyglasscamping badgeleft-handed writerblue helmetsweet berries
Larashiny compassclimbing badgeleft-handed writeryellow helmetsweet berries
Miarope lassoclimbing badgeright-handed writeryellow helmetsour apples
Bindipocket lanterntracking badgeleft-handed writergreen helmetsour apples
Leopocket lanterntracking badgeleft-handed writerblue helmetsweet berries
Amyrope lassofishing badgeright-handed writerblue helmetsalty pretzels
Dorashiny compasscamping badgeleft-handed writerblue helmetsweet berries
Evapocket lanternclimbing badgeright-handed writergreen helmetsalty pretzels
Maxshiny compasstracking badgeright-handed writerblue helmetsweet berries
Lilyshiny compassfishing badgeright-handed writeryellow helmetsalty pretzels
Rubypocket lanternboating badgeright-handed writerblue helmetsalty pretzels
Elipocket lanternfishing badgeleft-handed writergreen helmetsalty pretzels
Janebrass spyglasstracking badgeleft-handed writerblue helmetsour apples
Tobypocket lanterntracking badgeright-handed writergreen helmetsweet berries
Jackmagnifying glassclimbing badgeleft-handed writeryellow helmetsalty pretzels
Finnmagnifying glasscamping badgeleft-handed writeryellow helmetsour apples
Clue 1

Place value

Look at this box. It has tens and ones blocks on it. Count the blocks to open the box. Inside is our first big 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
51
50
27
11
66
27
64
31
88
92
27
11
66
92
T
51
50
64
59
27
64
77
69
11
50
69
66
29
96
64
88
29
27
What number has 5 tens and 1 one?T
What number has 1 ten and 1 one?S
What number has 9 tens and 2 ones?O
What number has 8 tens and 8 ones?D
What number has 5 tens and 9 ones?V
What number has 9 tens and 6 ones?B
What number has 6 tens and 9 ones?I
What number has 2 tens and 9 ones?G
What number has 5 tens and 0 ones?H
What number has 6 tens and 6 ones?N
What number has 2 tens and 7 ones?E
What number has 7 tens and 7 ones?F
What number has 6 tens and 4 ones?A
What number has 3 tens and 1 one?K
0/14 letters found
Clue 2

Addition

We need to count all of our green camp cups. Add them together. The total number unlocks 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.

T
10
20
4
8
13
4
17
16
12
8
6
4
7
T
10
20
17
13
19
4
19
6 + 4 =T
3 + 4 =F
14 + 6 =H
3 + 5 =S
2 + 2 =E
7 + 10 =A
4 + 12 =K
6 + 7 =N
7 + 5 =I
9 + 10 =D
4 + 2 =L
0/11 letters found
Clue 3

Subtraction

Some silly monkeys took our fresh bananas. Subtract the bananas they stole. The remaining number points to 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
18
10
6
7
12
6
15
4
11
14
1
2
2
6
11
7
5
6
6
T
18
3
6
14
14
9
6
7
19 - 1 =T
3 - 1 =P
12 - 2 =H
16 - 9 =S
3 - 2 =O
6 - 1 =W
8 - 4 =K
16 - 2 =R
19 - 4 =A
14 - 5 =I
20 - 8 =N
13 - 2 =D
7 - 4 =B
12 - 6 =E
0/14 letters found
Clue 4

Skip counting

There are muddy boot steps on the jungle trail. Count them by fives. Skip count to find the fourth 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
60
110
33
16
100
33
12
24
15
18
16
T
60
12
36
15
45
33
110
33
15
9
33
T
60
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120N
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18A
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30K
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42B
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21L
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55U
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24O
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, 14, ___, 18, 20S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130H
0/12 letters found
Clue 5

Missing addends — the last clue

We have three shiny badges. We need eight badges to fill the box. Find the missing number to get 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
9 + ___ = 11
3 + ___ = 13
9 + ___ = 14
1 + ___ = 2
3 + ___ = 12
10 + ___ = 22
10 + ___ = 18
9 + ___ = 20
1 + ___ = 7
3 + ___ = 6
2 + ___ = 9
Step 2 — cross out the sentence with each answer
1.The villain held the magnifying glass, then cleaned the camping badge.
2.The villain shined the pocket lantern, then pinned on the tracking badge.
3.The villain threw the rope lasso, then admired the fishing badge.
4.The villain checked the shiny compass, then cleaned the camping badge.
5.The villain peered through the brass spyglass, then cleaned the camping badge.
6.The villain shined the pocket lantern, then polished the boating badge.
7.The villain checked the shiny compass, then polished the boating badge.
8.The villain checked the shiny compass, then admired the fishing badge.
9.The villain threw the rope lasso, then pinned on the tracking badge.
10.The villain threw the rope lasso, then cleaned the camping badge.
11.The villain peered through the brass spyglass, then showed off the climbing badge.
12.The villain held the magnifying glass, then showed off the climbing badge.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 1 math
Math topics
Place value, Addition, Subtraction, Skip counting, Missing addends
Reading level
grades 1-2
Theme
The Great Jungle Map Hunt — set in Jungle Treehouse Camp
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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