⚾ BaseballGrade 9Reading: grades 3-4AdditionMultiplicationRoundingSkip countingDivision
The Mascot Mask Mystery
Someone swapped the official championship baseballs with bouncy rubber balls right before the big game! Coach Rivera needs your detective skills to inspect the dugout, solve math clues, and catch the prankster.
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 Pitch | Lucky Gear | Stance Habit | Cap Color | Weak Pitch |
|---|---|---|---|---|---|
| Buster Posey | Knuckleball | Pine Tar Bat | Adjusts Cap | Navy Blue Cap | High Heat |
| Roberto Clemente | Slider | Pine Tar Bat | Taps Plate | Navy Blue Cap | Outer Edge |
| Pedro Martinez | Knuckleball | Diamond Ring | Taps Plate | Navy Blue Cap | Outer Edge |
| Aaron Judge | Knuckleball | Diamond Ring | Adjusts Cap | Navy Blue Cap | Outer Edge |
| Babe Ruth | Curveball | Custom Helmet | Adjusts Cap | Emerald Green Cap | High Heat |
| Bryce Harper | Curveball | Gold Glove | Adjusts Cap | Bright Red Cap | Outer Edge |
| Hank Aaron | Changeup | Custom Helmet | Taps Plate | Navy Blue Cap | Outer Edge |
| Max Scherzer | Curveball | Diamond Ring | Taps Plate | Navy Blue Cap | Outer Edge |
| Willie Mays | Knuckleball | Neon Cleats | Adjusts Cap | Bright Red Cap | Outer Edge |
| Shohei Ohtani | Slider | Gold Glove | Adjusts Cap | Navy Blue Cap | Outer Edge |
| Lou Gehrig | Changeup | Diamond Ring | Adjusts Cap | Bright Red Cap | Outer Edge |
| Ken Griffey | Curveball | Neon Cleats | Adjusts Cap | Bright Red Cap | Low Sink |
| Freddie Freeman | Knuckleball | Custom Helmet | Adjusts Cap | Emerald Green Cap | High Heat |
| Justin Verlander | Curveball | Pine Tar Bat | Adjusts Cap | Navy Blue Cap | Outer Edge |
| Nolan Ryan | Slider | Diamond Ring | Adjusts Cap | Navy Blue Cap | Outer Edge |
| Ted Williams | Curveball | Neon Cleats | Adjusts Cap | Navy Blue Cap | Outer Edge |
| David Ortiz | Curveball | Pine Tar Bat | Adjusts Cap | Emerald Green Cap | High Heat |
| Cal Ripken | Curveball | Diamond Ring | Taps Plate | Emerald Green Cap | High Heat |
| Mike Trout | Fastball | Custom Helmet | Taps Plate | Navy Blue Cap | High Heat |
| Clayton Kershaw | Changeup | Neon Cleats | Adjusts Cap | Bright Red Cap | High Heat |
| Mookie Betts | Knuckleball | Gold Glove | Taps Plate | Bright Red Cap | Low Sink |
Clue 1
Addition
Count up the extra baseballs found near the bullpen to unlock the 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
5302
8326
9144
5409
7556
8700
8700
5539
7556
9176
2132
2954
9144
4172
9176
2954
T
5302
3351
9144
5539
4932
9176
9144
2954
9176
9696
8700
9144
5539
T
5302
4172
1886 + 3416 =T
1780 + 1174 =O
3249 + 6447 =C
4319 + 4381 =L
4466 + 3090 =I
1218 + 2133 =W
4316 + 4828 =E
2087 + 3322 =V
986 + 1146 =D
2946 + 1986 =R
3346 + 2193 =A
4324 + 4002 =H
2586 + 1586 =S
6417 + 2759 =N
0/14 letters found
Clue 2
Multiplication facts (1-12)
Check the equal rows of helmets in the dugout to solve this 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
5
42
28
30
15
30
14
28
110
T
5
12
36
30
30
28
28
20
36
54
21
15
30
T
5
4
20
33
T
5
42
28
4
7
110
36
14
1 × 5 =T
7 × 6 =H
3 × 10 =S
5 × 4 =N
7 × 3 =J
5 × 3 =U
3 × 11 =G
9 × 6 =D
1 × 4 =I
11 × 10 =C
4 × 7 =E
9 × 4 =A
4 × 3 =W
7 × 2 =P
1 × 7 =R
0/15 letters found
Clue 3
Rounding
The pitch speed on the radar display rounds to the nearest ten.
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
9000
1100
2000
90
130
370
T
9000
T
9000
1100
1700
90
7000
T
9000
1700
2000
1700
70
50
1700
T
9000
90
130
2300
2900
Round 8,507 to the nearest thousandT
Round 1,123 to the nearest hundredH
Round 54 to the nearest tenG
Round 2,346 to the nearest hundredI
Round 2,917 to the nearest hundredN
Round 94 to the nearest tenO
Round 1,675 to the nearest hundredE
Round 131 to the nearest tenW
Round 73 to the nearest tenD
Round 6,794 to the nearest thousandU
Round 372 to the nearest tenA
Round 2,463 to the nearest thousandR
0/12 letters found
Clue 4
Skip counting
Count by tens along the foul line to find the hidden 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.
F
22
26
33
50
28
55
50
55
36
130
18
35
33
120
140
55
21
55
40
8
26
24
120
21
35
55
40
120
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26F
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27P
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45L
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30O
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24B
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42V
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28M
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, ___, 130, 140E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160C
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150Y
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39U
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
Divide the practice bats evenly into racks to get 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
2 ÷ 2 = ?
24 ÷ 8 = ?
66 ÷ 11 = ?
9 ÷ 1 = ?
4 ÷ 2 = ?
48 ÷ 12 = ?
70 ÷ 7 = ?
84 ÷ 12 = ?
60 ÷ 12 = ?
80 ÷ 10 = ?
12 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain slid a tricky slider, then showed off a diamond ring.
2.The villain floated a slow changeup, then tapped a custom helmet.
3.The villain danced a wild knuckleball, then showed off a diamond ring.
4.The villain snapped a sharp curveball, then laced up neon cleats.
5.The villain slid a tricky slider, then tapped a custom helmet.
6.The villain slid a tricky slider, then flashed a gold glove.
7.The villain floated a slow changeup, then laced up neon cleats.
8.The villain threw a blazing fastball, then swung a pine tar bat.
9.The villain snapped a sharp curveball, then flashed a gold glove.
10.The villain threw a blazing fastball, then laced up neon cleats.
11.The villain snapped a sharp curveball, then swung a pine tar bat.
12.The villain floated a slow changeup, then swung a pine tar bat.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mascot Mask Mystery
Culprit: Justin Verlander (Curveball · Pine Tar Bat · Adjusts Cap · Navy Blue Cap · Outer Edge)
- Clue 1 (Addition): "THE VILLAIN DOES NOT WEAR NEON CLEATS"1886 + 3416 = 5302 (T) · 1780 + 1174 = 2954 (O) · 3249 + 6447 = 9696 (C) · 4319 + 4381 = 8700 (L) · 4466 + 3090 = 7556 (I) · 1218 + 2133 = 3351 (W) · 4316 + 4828 = 9144 (E) · 2087 + 3322 = 5409 (V) · 986 + 1146 = 2132 (D) · 2946 + 1986 = 4932 (R) · 3346 + 2193 = 5539 (A) · 4324 + 4002 = 8326 (H) · 2586 + 1586 = 4172 (S) · 6417 + 2759 = 9176 (N)
- Clue 2 (Multiplication facts (1-12)): "THE SUSPECT WAS SEEN ADJUSTING THEIR CAP"1 × 5 = 5 (T) · 7 × 6 = 42 (H) · 3 × 10 = 30 (S) · 5 × 4 = 20 (N) · 7 × 3 = 21 (J) · 5 × 3 = 15 (U) · 3 × 11 = 33 (G) · 9 × 6 = 54 (D) · 1 × 4 = 4 (I) · 11 × 10 = 110 (C) · 4 × 7 = 28 (E) · 9 × 4 = 36 (A) · 4 × 3 = 12 (W) · 7 × 2 = 14 (P) · 1 × 7 = 7 (R)
- Clue 3 (Rounding): "THROW AT THE OUTER EDGE TO WIN"Round 8,507 to the nearest thousand = 9000 (T) · Round 1,123 to the nearest hundred = 1100 (H) · Round 54 to the nearest ten = 50 (G) · Round 2,346 to the nearest hundred = 2300 (I) · Round 2,917 to the nearest hundred = 2900 (N) · Round 94 to the nearest ten = 90 (O) · Round 1,675 to the nearest hundred = 1700 (E) · Round 131 to the nearest ten = 130 (W) · Round 73 to the nearest ten = 70 (D) · Round 6,794 to the nearest thousand = 7000 (U) · Round 372 to the nearest ten = 370 (A) · Round 2,463 to the nearest thousand = 2000 (R)
- Clue 4 (Skip counting): "FOUND A NAVY BLUE CAP AT HOME PLATE"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (F) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50 = 40 (T) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (P) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (L) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (O) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (D) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24 = 18 (B) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (V) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28 = 24 (M) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60 = 50 (N) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (C) · 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 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (A) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (U)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Justin Verlander2 ÷ 2 = 1 · 24 ÷ 8 = 3 · 66 ÷ 11 = 6 · 9 ÷ 1 = 9 · 4 ÷ 2 = 2 · 48 ÷ 12 = 4 · 70 ÷ 7 = 10 · 84 ÷ 12 = 7 · 60 ÷ 12 = 5 · 80 ÷ 10 = 8 · 12 ÷ 1 = 12
About this mystery
- Grade level
- Grade 9 math
- Math topics
- Addition, Multiplication, Rounding, Skip counting, Division
- Reading level
- grades 3-4
- Theme
- The Mascot Mask Mystery — set in Diamond Park Stadium
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects