⚽ FootballGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Great Stadium Sneak
Someone snuck into Gridiron Park Stadium right before the big game and hid the golden championship football trophy! Coach Davis needs your help to track down the culprit before kickoff.
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 | Signature Move | Lucky Gear | Stance Tell | Helmet Stripe | Distraction |
|---|---|---|---|---|---|
| Baker | Power Tackle | Gold Whistle | Left-Footed Kick | Red Stripe | Cheering Crowd |
| Deebo | High Kick | Striped Socks | Left-Footed Kick | Green Stripe | Squeaky Shoes |
| Cooper | High Kick | Bright Towel | Right-Footed Kick | Blue Stripe | Cheering Crowd |
| TJ | Juke Step | Foam Finger | Left-Footed Kick | Red Stripe | Squeaky Shoes |
| Tyreek | Power Tackle | Bright Towel | Left-Footed Kick | Red Stripe | Squeaky Shoes |
| Saquon | Spin Move | Striped Socks | Right-Footed Kick | Green Stripe | Honking Horn |
| Lamar | High Kick | Bright Towel | Left-Footed Kick | Red Stripe | Cheering Crowd |
| Myles | Juke Step | Bright Towel | Left-Footed Kick | Blue Stripe | Squeaky Shoes |
| Travis | Speed Dash | Striped Socks | Right-Footed Kick | Red Stripe | Squeaky Shoes |
| Micah | Speed Dash | Striped Socks | Right-Footed Kick | Red Stripe | Honking Horn |
| Jalen | High Kick | Foam Finger | Right-Footed Kick | Red Stripe | Cheering Crowd |
| Justin | Speed Dash | Foam Finger | Right-Footed Kick | Blue Stripe | Squeaky Shoes |
| Davante | Juke Step | Striped Socks | Left-Footed Kick | Red Stripe | Squeaky Shoes |
| Derrick | Speed Dash | Bright Towel | Right-Footed Kick | Blue Stripe | Honking Horn |
| Stefon | Juke Step | Loud Megaphone | Left-Footed Kick | Blue Stripe | Squeaky Shoes |
| Trevor | Juke Step | Bright Towel | Left-Footed Kick | Red Stripe | Squeaky Shoes |
| George | High Kick | Striped Socks | Right-Footed Kick | Blue Stripe | Cheering Crowd |
| Kirk | High Kick | Striped Socks | Left-Footed Kick | Red Stripe | Squeaky Shoes |
| Christian | Spin Move | Foam Finger | Right-Footed Kick | Blue Stripe | Honking Horn |
| Brock | Speed Dash | Bright Towel | Right-Footed Kick | Red Stripe | Squeaky Shoes |
| Aaron | Speed Dash | Foam Finger | Right-Footed Kick | Green Stripe | Squeaky Shoes |
Clue 1
Addition
Coach Davis added up all the helmets in the locker room. The final sum gave us our first lead!
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
15
4
19
8
14
12
12
11
14
20
5
3
19
9
20
3
T
15
4
11
8
19
11
6
3
11
13
6
14
20
7
19
2
10 + 5 =T
8 + 5 =M
1 + 5 =F
7 + 4 =A
7 + 2 =S
1 + 3 =H
6 + 2 =V
5 + 14 =E
10 + 10 =N
4 + 8 =L
3 + 4 =G
4 + 10 =I
3 + 2 =D
1 + 2 =O
1 + 1 =R
0/15 letters found
Clue 2
Subtraction
The referee took away broken pylons from the field. Counting what was left showed another secret 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.
A
8
1
7
10
14
18
17
17
17
A
8
1
A
8
13
18
9
10
9
6
6
10
18
2
4
7
3
4
6
14
9
7
18
13
2
11 - 3 =A
16 - 6 =T
18 - 4 =N
18 - 1 =S
8 - 7 =W
19 - 1 =E
9 - 6 =C
9 - 2 =I
18 - 9 =F
5 - 3 =D
8 - 2 =O
18 - 5 =L
5 - 1 =K
0/13 letters found
Clue 3
Skip counting
The cheerleaders counted field markers by tens. Their loud chant pointed right to a hidden 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
20
24
30
80
120
30
33
140
12
33
80
80
T
20
45
14
14
30
110
90
130
80
55
27
30
33
140
130
80
24
45
30
80
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30T
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28H
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150Y
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110B
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65Q
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160K
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55O
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130D
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18P
0/15 letters found
Clue 4
Place value
The giant scoreboard digits showed tens and ones. Breaking down the score unlocked a fresh 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
88
46
44
59
44
66
44
59
44
44
66
22
58
39
41
95
59
44
41
47
T
88
59
82
94
44
46
44
43
50
44
T
88
65
46
82
94
What number has 8 tens and 8 ones?T
What number has 4 tens and 1 one?D
What number has 4 tens and 3 ones?L
What number has 4 tens and 6 ones?H
What number has 6 tens and 5 ones?C
What number has 5 tens and 8 ones?U
What number has 4 tens and 7 ones?S
What number has 8 tens and 2 ones?I
What number has 2 tens and 2 ones?O
What number has 4 tens and 4 ones?E
What number has 9 tens and 4 ones?P
What number has 3 tens and 9 ones?N
What number has 5 tens and 0 ones?M
What number has 5 tens and 9 ones?R
What number has 9 tens and 5 ones?A
What number has 6 tens and 6 ones?F
0/16 letters found
Clue 5
Missing addends — the last clue
We had six footballs in the bag but needed ten. Finding how many were missing gave 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
10 + ___ = 15
1 + ___ = 9
9 + ___ = 18
8 + ___ = 20
7 + ___ = 10
8 + ___ = 10
9 + ___ = 19
5 + ___ = 9
7 + ___ = 13
3 + ___ = 14
3 + ___ = 10
Step 2 — cross out the sentence with each answer
1.The villain showed off a high kick, then pulled up striped socks.
2.The villain dodged with a juke step, then blew a gold whistle.
3.The villain danced with a spin move, then waved a foam finger.
4.The villain dodged with a juke step, then shouted into a loud megaphone.
5.The villain dodged with a juke step, then pulled up striped socks.
6.The villain danced with a spin move, then blew a gold whistle.
7.The villain blasted with a power tackle, then blew a gold whistle.
8.The villain dodged with a juke step, then waved a bright towel.
9.The villain blasted with a power tackle, then waved a bright towel.
10.The villain danced with a spin move, then pulled up striped socks.
11.The villain danced with a spin move, then waved a bright towel.
12.The villain showed off a high kick, then shouted into a loud megaphone.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Stadium Sneak
Culprit: Kirk (High Kick · Striped Socks · Left-Footed Kick · Red Stripe · Squeaky Shoes)
- Clue 1 (Addition): "THE VILLAIN DOES NOT HAVE A FOAM FINGER"10 + 5 = 15 (T) · 8 + 5 = 13 (M) · 1 + 5 = 6 (F) · 7 + 4 = 11 (A) · 7 + 2 = 9 (S) · 1 + 3 = 4 (H) · 6 + 2 = 8 (V) · 5 + 14 = 19 (E) · 10 + 10 = 20 (N) · 4 + 8 = 12 (L) · 3 + 4 = 7 (G) · 4 + 10 = 14 (I) · 3 + 2 = 5 (D) · 1 + 2 = 3 (O) · 1 + 1 = 2 (R)
- Clue 2 (Subtraction): "A WITNESS SAW A LEFT FOOTED KICK ON FIELD"11 - 3 = 8 (A) · 16 - 6 = 10 (T) · 18 - 4 = 14 (N) · 18 - 1 = 17 (S) · 8 - 7 = 1 (W) · 19 - 1 = 18 (E) · 9 - 6 = 3 (C) · 9 - 2 = 7 (I) · 18 - 9 = 9 (F) · 5 - 3 = 2 (D) · 8 - 2 = 6 (O) · 18 - 5 = 13 (L) · 5 - 1 = 4 (K)
- Clue 3 (Skip counting): "THE SNEAK WAS STOPPED BY SQUEAKY SHOES"Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (T) · Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50 = 30 (E) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28 = 24 (H) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (W) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (Y) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (B) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (Q) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (K) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (O) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (N) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (D) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (P)
- Clue 4 (Place value): "THE REFEREE FOUND A RED STRIPE HELMET CHIP"What number has 8 tens and 8 ones? = 88 (T) · What number has 4 tens and 1 one? = 41 (D) · What number has 4 tens and 3 ones? = 43 (L) · What number has 4 tens and 6 ones? = 46 (H) · What number has 6 tens and 5 ones? = 65 (C) · What number has 5 tens and 8 ones? = 58 (U) · What number has 4 tens and 7 ones? = 47 (S) · What number has 8 tens and 2 ones? = 82 (I) · What number has 2 tens and 2 ones? = 22 (O) · What number has 4 tens and 4 ones? = 44 (E) · What number has 9 tens and 4 ones? = 94 (P) · What number has 3 tens and 9 ones? = 39 (N) · What number has 5 tens and 0 ones? = 50 (M) · What number has 5 tens and 9 ones? = 59 (R) · What number has 9 tens and 5 ones? = 95 (A) · What number has 6 tens and 6 ones? = 66 (F)
- Clue 5 (Missing addends): surviving statement (box 1) → Kirk10 + ___ = 15 = 5 · 1 + ___ = 9 = 8 · 9 + ___ = 18 = 9 · 8 + ___ = 20 = 12 · 7 + ___ = 10 = 3 · 8 + ___ = 10 = 2 · 9 + ___ = 19 = 10 · 5 + ___ = 9 = 4 · 7 + ___ = 13 = 6 · 3 + ___ = 14 = 11 · 3 + ___ = 10 = 7
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 Stadium Sneak — set in Gridiron Park Stadium
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects