Math Mysteries
🔎 Thanksgiving TurkeyGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends

The Great Thanksgiving Caper

Oh no! A sneaky bird took the Golden Cranberry right before the big feast. Mayor Gobbler needs your help to find the thief and save Thanksgiving!

Suspects

Possible suspects

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

21 of 21 still in play
NameTurkey PowerTurkey GearFootprintFeather ColorWeakness
RustyLoud GobblingCranberry CapeLeft FootedBrown FeathersCold Wind
PecanLeaf HidingPumpkin HelmetLeft FootedRed FeathersSilly Songs
GibsonSuper Wing FlapBerry LauncherRight FootedRed FeathersSilly Songs
WattleFast StruttingCorncob BatLeft FootedRed FeathersSilly Songs
PipAcorn TossCranberry CapeLeft FootedRed FeathersCold Wind
HenriettaAcorn TossPumpkin HelmetLeft FootedRed FeathersSilly Songs
CloverLoud GobblingCranberry CapeRight FootedGold FeathersSilly Songs
ButterballLeaf HidingCorncob BatRight FootedGold FeathersCold Wind
PenelopeSuper Wing FlapFeather ShieldLeft FootedRed FeathersSilly Songs
PumpkinLeaf HidingCorncob BatLeft FootedBrown FeathersSilly Songs
PilgrimFast StruttingPumpkin HelmetLeft FootedBrown FeathersSilly Songs
GobblesFast StruttingBerry LauncherLeft FootedRed FeathersSilly Songs
AcornFast StruttingBerry LauncherLeft FootedBrown FeathersCold Wind
StuffingFast StruttingCranberry CapeLeft FootedBrown FeathersSilly Songs
TomFast StruttingCranberry CapeRight FootedBrown FeathersStuffing Smell
AutumnLeaf HidingCranberry CapeLeft FootedBrown FeathersSilly Songs
SnoodSuper Wing FlapCranberry CapeLeft FootedRed FeathersStuffing Smell
FeatherLeaf HidingBerry LauncherLeft FootedRed FeathersSilly Songs
MapleSuper Wing FlapCorncob BatLeft FootedGold FeathersSilly Songs
CranberryLeaf HidingCorncob BatRight FootedRed FeathersSilly Songs
GravyFast StruttingCranberry CapeRight FootedRed FeathersSilly Songs
Clue 1

Addition

Let us count the extra pies in the kitchen. We add the pumpkin pies and apple pies together to find 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
13
6
4
T
13
6
10
4
12
20
7
4
18
5
7
T
13
2
4
9
15
9
11
16
3
11
8
10
5
6
4
17
3
4
T
13
10 + 3 =T
3 + 9 =F
6 + 2 =K
7 + 3 =I
10 + 6 =U
2 + 3 =N
7 + 10 =L
2 + 7 =A
1 + 3 =E
2 + 4 =H
8 + 10 =S
5 + 2 =O
6 + 14 =D
1 + 1 =W
5 + 6 =P
1 + 2 =M
10 + 5 =R
0/17 letters found
Clue 2

Subtraction

A hungry squirrel ate some of our acorns. We had ten acorns but now we have less. Let us subtract to see how many are 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
17
12
5
1
4
5
3
7
8
15
2
9
14
1
T
17
5
13
13
5
14
19
2
T
17
12
T
17
12
5
6
5
10
T
17
10
18
18
T
17
19 - 2 =T
13 - 6 =K
19 - 1 =O
5 - 4 =S
16 - 2 =D
6 - 3 =A
20 - 5 =B
20 - 1 =W
15 - 7 =Y
20 - 7 =P
9 - 7 =I
17 - 7 =F
18 - 6 =H
6 - 1 =E
8 - 4 =N
15 - 6 =R
12 - 6 =L
0/17 letters found
Clue 3

Skip counting

The heavy pumpkins are lined up in neat rows. We can count them fast by skipping by twos.

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
70
60
36
T
70
60
42
36
30
130
21
12
12
16
T
70
25
T
70
21
12
14
25
42
18
18
28
25
16
12
24
25
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80T
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35S
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18N
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50F
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42E
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30G
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20O
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32Y
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24L
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150C
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48I
0/14 letters found
Clue 4

Place value

The turkeys are sorting their yellow feathers. We put them into bundles of ten and some single ones.

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
54
64
22
37
39
61
11
44
64
11
22
64
82
73
57
64
44
78
82
73
73
57
64
78
53
64
61
64
What number has 5 tens and 4 ones?W
What number has 6 tens and 4 ones?E
What number has 5 tens and 7 ones?H
What number has 7 tens and 3 ones?T
What number has 3 tens and 9 ones?U
What number has 4 tens and 4 ones?R
What number has 3 tens and 7 ones?O
What number has 5 tens and 3 ones?C
What number has 1 ten and 1 one?D
What number has 8 tens and 2 ones?A
What number has 7 tens and 8 ones?S
What number has 2 tens and 2 ones?F
What number has 6 tens and 1 one?N
0/13 letters found
Clue 5

Missing addends — the last clue

Some corn cobs fell out of the harvest wagon. We need eight cobs to fill the box but only have five. How many more do we need.

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
4 + ___ = 5
10 + ___ = 17
6 + ___ = 9
7 + ___ = 18
7 + ___ = 15
3 + ___ = 15
8 + ___ = 13
10 + ___ = 14
3 + ___ = 12
9 + ___ = 19
4 + ___ = 10
Step 2 — cross out the sentence with each answer
1.The villain hid under a pile of leaves, then fired the berry launcher.
2.The villain strutted past the barn, then swung a corncob bat.
3.The villain flapped its giant wings, then held up a feather shield.
4.The villain flapped its giant wings, then swung a corncob bat.
5.The villain tossed shiny acorns, then swung a corncob bat.
6.The villain flapped its giant wings, then waved a cranberry cape.
7.The villain strutted past the barn, then fired the berry launcher.
8.The villain gobbled very loudly, then put on a pumpkin helmet.
9.The villain hid under a pile of leaves, then put on a pumpkin helmet.
10.The villain gobbled very loudly, then held up a feather shield.
11.The villain flapped its giant wings, then fired the berry launcher.
12.The villain flapped its giant wings, then put on a pumpkin helmet.
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 Thanksgiving Caper — set in The Great Acorn Forest
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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