Math Mysteries
🦁 Zoo animalsGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends

The Great Zoo Snack Mystery

Oh no! Someone took all the sweet treats from the Sunny Valley Zoo kitchen. The animals are hungry, and the kitchen is a big mess. Can you help us find the Snack Bandit and 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
NameSuper SkillWild GearFavorite PawCoat StyleBig Distraction
Pip Penguindigs deep holesfancy red scarfholds map with left pawstriped fur coatcrunchy sweet carrots
Gerry Girafferoars very loudshiny gold badgeholds map with left pawstriped fur coatcrunchy sweet carrots
Cleo Cheetahdigs deep holesfunny green hatholds map with right pawfluffy gray coatcrunchy sweet carrots
Gaby Goatjumps very highshiny gold badgeholds map with right pawspotted fur coatcrunchy sweet carrots
Fiona Foxjumps very highglowing collarholds map with right pawspotted fur coatfresh green leaves
Sammy Snakedigs deep holesfancy red scarfholds map with left pawfluffy gray coatcrunchy sweet carrots
Ella Elephantjumps very highblue backpackholds map with left pawstriped fur coatsqueaky yellow ducks
Zelda Zebraswims super fastblue backpackholds map with left pawspotted fur coatsqueaky yellow ducks
Penny Pandadigs deep holesshiny gold badgeholds map with left pawspotted fur coatsqueaky yellow ducks
Benny Badgerdigs deep holesfunny green hatholds map with right pawstriped fur coatcrunchy sweet carrots
Buster Bunnyswims super fastfunny green hatholds map with left pawfluffy gray coatcrunchy sweet carrots
Mimi Monkeyjumps very highblue backpackholds map with left pawstriped fur coatcrunchy sweet carrots
Koko Koalaclimbs tall treesglowing collarholds map with left pawstriped fur coatcrunchy sweet carrots
Pippin Parrotdigs deep holesglowing collarholds map with left pawfluffy gray coatfresh green leaves
Bella Bearjumps very highfancy red scarfholds map with right pawfluffy gray coatsqueaky yellow ducks
Henry Hippojumps very highblue backpackholds map with right pawfluffy gray coatsqueaky yellow ducks
Sally Sealdigs deep holesblue backpackholds map with left pawstriped fur coatcrunchy sweet carrots
Toby Tigerroars very loudglowing collarholds map with left pawfluffy gray coatsqueaky yellow ducks
Iggy Iguanajumps very highglowing collarholds map with left pawfluffy gray coatsqueaky yellow ducks
Rocky Raptorjumps very highshiny gold badgeholds map with left pawstriped fur coatcrunchy sweet carrots
Danny Dolphinclimbs tall treesfunny green hatholds map with right pawspotted fur coatsqueaky yellow ducks
Clue 1

Addition

We need to find how many bags of food are left. Count the banana bags and the apple bags together to get the total.

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
11
10
16
T
11
10
12
16
14
17
19
16
18
4
19
T
11
13
16
20
9
20
18
10
12
4
15
3
19
5
17
8
20
17
3
16
3 + 8 =T
4 + 12 =E
4 + 8 =I
2 + 1 =G
4 + 6 =H
14 + 5 =O
11 + 4 =Y
11 + 7 =S
2 + 7 =R
3 + 10 =W
2 + 6 =B
7 + 7 =F
1 + 3 =N
8 + 12 =A
1 + 4 =L
9 + 8 =D
0/16 letters found
Clue 2

Subtraction

The thief took some treat boxes. Subtract the missing boxes from the full pile to see what is gone.

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
15
7
11
W
12
17
13
13
18
4
3
19
10
18
7
17
3
13
14
18
9
15
6
15
17
18
4
11
W
12
13
10
6
5
19 - 7 =W
20 - 9 =A
17 - 2 =E
8 - 4 =P
9 - 2 =S
11 - 2 =H
14 - 4 =N
10 - 4 =L
18 - 4 =M
11 - 6 =Y
16 - 3 =O
20 - 3 =F
20 - 2 =T
20 - 1 =I
10 - 7 =R
0/15 letters found
Clue 3

Skip counting

Look at the animal tracks on the path. Count the steps by twos to trace where the bandit ran.

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
42
28
60
16
40
50
20
35
90
25
60
28
90
36
28
50
16
130
90
50
24
28
33
90
130
130
16
36
55
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48W
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42T
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24D
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70F
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39C
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65S
Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30G
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35L
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150R
0/15 letters found
Clue 4

Place value

The kitchen lock has a secret number code. Look at the tens blocks and the ones blocks to read the 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.

W
43
26
85
23
12
65
54
69
79
81
51
28
26
54
85
12
81
23
65
79
20
26
90
89
79
26
What number has 4 tens and 3 ones?W
What number has 5 tens and 1 one?I
What number has 5 tens and 4 ones?D
What number has 6 tens and 9 ones?S
What number has 7 tens and 9 ones?T
What number has 9 tens and 0 ones?G
What number has 8 tens and 1 one?R
What number has 2 tens and 0 ones?H
What number has 8 tens and 9 ones?A
What number has 2 tens and 8 ones?P
What number has 2 tens and 6 ones?E
What number has 1 ten and 2 ones?U
What number has 2 tens and 3 ones?O
What number has 6 tens and 5 ones?N
What number has 8 tens and 5 ones?F
0/15 letters found
Clue 5

Missing addends — the last clue

We have five treats but we need eight. Find how many more treats we must add to fill the shelf.

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
4 + ___ = 8
5 + ___ = 17
5 + ___ = 13
2 + ___ = 11
1 + ___ = 2
9 + ___ = 20
10 + ___ = 16
3 + ___ = 13
1 + ___ = 6
1 + ___ = 4
Step 2 — cross out the sentence with each answer
1.The villain climbed up the tall oak tree, then adjusted their fancy red scarf.
2.The villain dug a quick tunnel under the wall, then unzipped their blue backpack.
3.The villain dug a quick tunnel under the wall, then tipped their funny green hat.
4.The villain jumped over the safety fence, then unzipped their blue backpack.
5.The villain swam across the deep zoo pool, then tipped their funny green hat.
6.The villain roared to scare the night guard, then turned off their glowing collar.
7.The villain climbed up the tall oak tree, then turned off their glowing collar.
8.The villain roared to scare the night guard, then tipped their funny green hat.
9.The villain swam across the deep zoo pool, then turned off their glowing collar.
10.The villain jumped over the safety fence, then turned off their glowing collar.
11.The villain climbed up the tall oak tree, then polished their shiny gold badge.
12.The villain dug a quick tunnel under the wall, then adjusted their fancy red scarf.
Solve it

Name the culprit

Choose the one suspect left standing.

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 Zoo Snack Mystery — set in Sunny Valley Zoo
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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