Math Crackers
🔎 BottomsGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends

The Great Bottoms Mystery

Someone mixed up all the bottom wear outfits at the Pantsburg Style Depot! Solve the math clues to find out which suspect swapped the clothes!

Suspects

Possible suspects

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

21 of 21 still in play
NameBottoms StyleAccessoryShirt StyleHairstyleTool Defect
Belt Buckle BobWork OverallsNeon BeltsTucks In ShirtsBraided PigtailsLint Roller
Snap SueCozy SweatpantsBright SuspendersTucks In ShirtsCurly WigSticky Tape
Sam ShortsPlaid SkirtBright SuspendersTucks In ShirtsSpiky MohawkSticky Tape
Plaid PiperCargo ShortsBrass BucklesTucks In ShirtsSpiky MohawkZipper Jam
Fringe FredPlaid SkirtPatched PocketsTucks In ShirtsBraided PigtailsZipper Jam
Stitch StanPlaid SkirtBrass BucklesTucks In ShirtsBraided PigtailsSticky Tape
Pocket PattyWork OverallsBright SuspendersLeaves Shirts UntuckedCurly WigSticky Tape
Cuff ClaraPlaid SkirtFringe TrimLeaves Shirts UntuckedSpiky MohawkLint Roller
Sallie SkirtWork OverallsNeon BeltsTucks In ShirtsSpiky MohawkLint Roller
Sweatpant SydCozy SweatpantsBrass BucklesTucks In ShirtsBraided PigtailsLint Roller
Pleat PamDenim JeansFringe TrimTucks In ShirtsCurly WigLint Roller
Loom LukeCozy SweatpantsBrass BucklesTucks In ShirtsSpiky MohawkLint Roller
Ollie OverallsDenim JeansBright SuspendersLeaves Shirts UntuckedSpiky MohawkSticky Tape
Cargo CarlPlaid SkirtFringe TrimLeaves Shirts UntuckedSpiky MohawkSticky Tape
Penny PantsCargo ShortsFringe TrimTucks In ShirtsSpiky MohawkLint Roller
Thread TheaCozy SweatpantsFringe TrimTucks In ShirtsSpiky MohawkLint Roller
Jerry JeansCargo ShortsBright SuspendersTucks In ShirtsSpiky MohawkLint Roller
Denim DanDenim JeansPatched PocketsTucks In ShirtsSpiky MohawkLint Roller
Button BenCozy SweatpantsPatched PocketsLeaves Shirts UntuckedSpiky MohawkSticky Tape
Zipper ZeldaWork OverallsPatched PocketsLeaves Shirts UntuckedBraided PigtailsSticky Tape
Patch PetePlaid SkirtBright SuspendersLeaves Shirts UntuckedSpiky MohawkLint Roller
Clue 1

Addition

We add up all the pants dropped on the store floor to find 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
12
20
9
11
7
14
14
10
7
5
6
4
9
2
5
4
T
12
19
9
10
13
17
13
7
5
8
9
T
12
13
7
18
6 + 6 =T
14 + 5 =W
6 + 4 =A
9 + 4 =R
1 + 1 =S
3 + 6 =E
5 + 1 =D
3 + 4 =I
3 + 1 =O
8 + 10 =M
8 + 12 =H
4 + 7 =V
6 + 2 =G
2 + 3 =N
8 + 6 =L
11 + 6 =F
0/16 letters found
Clue 2

Subtraction

We take away the folded shorts from the total pile to see what is 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.

W
5
9
8
2
14
15
15
15
17
W
5
8
6
14
15
2
14
17
19
8
12
13
19
15
9
2
15
6
9
10
8
15
12 - 7 =W
16 - 1 =S
19 - 6 =C
20 - 3 =A
16 - 4 =U
9 - 3 =H
20 - 6 =E
16 - 6 =R
11 - 3 =T
20 - 1 =K
7 - 5 =N
15 - 6 =I
0/12 letters found
Clue 3

Skip counting

We count the belt loops by twos along the rack to find another hint.

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
50
130
36
16
42
8
140
T
10
120
16
60
60
T
10
9
20
20
130
8
36
33
16
45
140
42
T
10
6
9
45
45
130
6
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14T
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55L
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60H
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, 15, 18, 21, 24, 27, 30, ___, 36, 39Y
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15O
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160I
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10R
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24P
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140W
0/15 letters found
Clue 4

Place value

We look at the tens and ones on the clothing price tag to read a 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.

A
56
44
21
90
28
67
81
38
94
A
56
69
28
94
A
56
90
32
69
A
56
44
34
16
79
17
38
82
17
94
16
39
16
34
17
What number has 5 tens and 6 ones?A
What number has 9 tens and 0 ones?I
What number has 9 tens and 4 ones?H
What number has 6 tens and 9 ones?W
What number has 4 tens and 4 ones?S
What number has 8 tens and 2 ones?N
What number has 8 tens and 1 one?M
What number has 1 ten and 7 ones?T
What number has 7 tens and 9 ones?F
What number has 3 tens and 8 ones?O
What number has 2 tens and 1 one?P
What number has 1 ten and 6 ones?E
What number has 3 tens and 9 ones?B
What number has 2 tens and 8 ones?K
What number has 6 tens and 7 ones?Y
What number has 3 tens and 2 ones?R
What number has 3 tens and 4 ones?L
0/17 letters found
Clue 5

Missing addends — the last clue

We figure out how many more buttons we need to complete the rack mystery.

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
5 + ___ = 17
9 + ___ = 13
3 + ___ = 9
4 + ___ = 14
10 + ___ = 21
3 + ___ = 8
5 + ___ = 13
4 + ___ = 6
6 + ___ = 13
8 + ___ = 9
Step 2 — cross out the sentence with each answer
1.The villain snatched cozy sweatpants, then stuffed patched pockets.
2.The villain took a plaid skirt, then stuffed patched pockets.
3.The villain grabbed cargo shorts, then snapped bright suspenders.
4.The villain swiped work overalls, then buckled neon belts.
5.The villain grabbed cargo shorts, then clasped brass buckles.
6.The villain snatched cozy sweatpants, then buckled neon belts.
7.The villain took a plaid skirt, then buckled neon belts.
8.The villain snatched cozy sweatpants, then snapped bright suspenders.
9.The villain snagged denim jeans, then stuffed patched pockets.
10.The villain snagged denim jeans, then clasped brass buckles.
11.The villain swiped work overalls, then snapped bright suspenders.
12.The villain snatched cozy sweatpants, then clasped brass buckles.
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 Bottoms Mystery — set in Pantsburg Style Depot
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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