🔎 TennisGrade 2Reading: grades 1-2Place valueAdditionSubtractionSkip countingMissing addends
The Great Tennis Court Mystery
The championship match is about to start, but the golden trophy is missing! A sneaky player hid it. Help Coach Maya solve the clues and find the culprit.
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 | Shot Style | Special Gear | Main Hand | Headwear | Court Weakness |
|---|---|---|---|---|---|
| Taylor | Power Smash | Glow Visor | Left Handed | Black Cap | Clay Court |
| Carlos | Power Smash | Golden Trophy | Right Handed | Black Cap | Loud Cheer |
| Serena | Slice Shot | Grip Tape | Right Handed | Red Sweatband | High Bounce |
| Roger | Lob Blast | Glow Visor | Right Handed | Blonde Ponytail | High Bounce |
| Stefanos | Power Smash | Neon Racket | Right Handed | Red Sweatband | Loud Cheer |
| Bianca | Slice Shot | Glow Visor | Right Handed | Blonde Ponytail | High Bounce |
| Venus | Lob Blast | Grip Tape | Left Handed | Red Sweatband | Loud Cheer |
| Aryna | Lob Blast | Glow Visor | Right Handed | Red Sweatband | Loud Cheer |
| Ben | Rocket Serve | Golden Trophy | Left Handed | Black Cap | Clay Court |
| Daniil | Spin Shot | Neon Racket | Right Handed | Black Cap | Loud Cheer |
| Jessica | Lob Blast | Turbo Shoes | Right Handed | Red Sweatband | Loud Cheer |
| Rafa | Rocket Serve | Turbo Shoes | Right Handed | Red Sweatband | Loud Cheer |
| Hubert | Spin Shot | Grip Tape | Right Handed | Red Sweatband | High Bounce |
| Andy | Rocket Serve | Turbo Shoes | Right Handed | Blonde Ponytail | Loud Cheer |
| Leylah | Slice Shot | Grip Tape | Right Handed | Black Cap | Loud Cheer |
| Maria | Slice Shot | Golden Trophy | Left Handed | Blonde Ponytail | Clay Court |
| Iga | Slice Shot | Glow Visor | Right Handed | Black Cap | Loud Cheer |
| Naomi | Lob Blast | Golden Trophy | Right Handed | Red Sweatband | Loud Cheer |
| Novak | Spin Shot | Golden Trophy | Right Handed | Blonde Ponytail | Loud Cheer |
| Coco | Power Smash | Golden Trophy | Right Handed | Red Sweatband | Loud Cheer |
| Sloane | Spin Shot | Grip Tape | Right Handed | Black Cap | High Bounce |
Clue 1
Place value
Check the scoreboard digits. Look at the tens and ones 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
98
47
91
81
30
91
69
35
16
64
47
69
70
88
25
28
30
54
28
91
81
30
28
T
98
26
81
91
T
98
26
38
52
28
81
47
28
91
81
What number has 9 tens and 8 ones?T
What number has 3 tens and 5 ones?K
What number has 9 tens and 1 one?E
What number has 2 tens and 6 ones?U
What number has 4 tens and 7 ones?H
What number has 2 tens and 8 ones?O
What number has 2 tens and 5 ones?I
What number has 6 tens and 9 ones?A
What number has 8 tens and 1 one?S
What number has 6 tens and 4 ones?C
What number has 1 ten and 6 ones?Y
What number has 8 tens and 8 ones?P
What number has 3 tens and 0 ones?N
What number has 5 tens and 2 ones?B
What number has 5 tens and 4 ones?D
What number has 3 tens and 8 ones?R
What number has 7 tens and 0 ones?M
0/17 letters found
Clue 2
Addition
Count the extra tennis balls in both baskets. Add them together for clue two.
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
27
74
63
35
91
T
27
66
74
33
63
66
97
33
88
42
74
97
53
42
33
30
37
74
T
27
74
91
60
88
63
88
37
33
30
46
17 + 10 =T
27 + 15 =S
28 + 38 =C
22 + 24 =P
22 + 13 =M
27 + 64 =A
19 + 11 =I
53 + 44 =O
19 + 41 =N
20 + 43 =E
51 + 37 =D
31 + 22 =W
49 + 25 =H
21 + 16 =G
23 + 10 =R
0/15 letters found
Clue 3
Subtraction
Track how many practice balls flew out of bounds. Subtract to get clue three.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
L
22
16
20
88
52
29
64
64
32
88
59
41
35
32
31
52
35
64
88
35
29
64
35
32
59
52
81
40
26
L
22
31
40
64
32
40 - 18 =L
53 - 33 =U
55 - 15 =Y
95 - 7 =D
46 - 5 =S
71 - 19 =C
55 - 39 =O
41 - 6 =T
63 - 4 =I
118 - 37 =K
101 - 37 =E
38 - 7 =A
33 - 1 =R
64 - 38 =P
56 - 27 =H
0/15 letters found
Clue 4
Skip counting
Count the rows of ball cans by twos. Skip count to find clue four.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
R
65
16
55
140
90
16
21
10
70
21
39
55
140
39
21
12
12
16
55
20
39
10
16
39
39
25
140
39
16
10
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90B
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110W
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16G
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, ___, 60, 65D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24O
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20E
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35I
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45N
0/12 letters found
Clue 5
Missing addends — the last clue
The racket rack has empty slots. Find the missing number to get the last 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 + ___ = 13
4 + ___ = 9
7 + ___ = 16
6 + ___ = 8
2 + ___ = 9
1 + ___ = 13
5 + ___ = 13
9 + ___ = 10
6 + ___ = 17
3 + ___ = 13
1 + ___ = 7
Step 2 — cross out the sentence with each answer
1.The villain launches a lob blast, then wraps fresh grip tape.
2.The villain hits a spin shot, then flashes a neon racket.
3.The villain launches a lob blast, then grabs a golden trophy.
4.The villain smashes a power shot, then flashes a neon racket.
5.The villain launches a lob blast, then adjusts a glow visor.
6.The villain strikes a slice shot, then grabs a golden trophy.
7.The villain smashes a power shot, then adjusts a glow visor.
8.The villain launches a lob blast, then zips in turbo shoes.
9.The villain smashes a power shot, then grabs a golden trophy.
10.The villain smashes a power shot, then zips in turbo shoes.
11.The villain strikes a slice shot, then zips in turbo shoes.
12.The villain strikes a slice shot, then wraps fresh grip tape.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Tennis Court Mystery
Culprit: Stefanos (Power Smash · Neon Racket · Right Handed · Red Sweatband · Loud Cheer)
- Clue 1 (Place value): "THE SNEAKY CHAMPION DOES NOT USE TURBO SHOES"What number has 9 tens and 8 ones? = 98 (T) · What number has 3 tens and 5 ones? = 35 (K) · What number has 9 tens and 1 one? = 91 (E) · What number has 2 tens and 6 ones? = 26 (U) · What number has 4 tens and 7 ones? = 47 (H) · What number has 2 tens and 8 ones? = 28 (O) · What number has 2 tens and 5 ones? = 25 (I) · What number has 6 tens and 9 ones? = 69 (A) · What number has 8 tens and 1 one? = 81 (S) · What number has 6 tens and 4 ones? = 64 (C) · What number has 1 ten and 6 ones? = 16 (Y) · What number has 8 tens and 8 ones? = 88 (P) · What number has 3 tens and 0 ones? = 30 (N) · What number has 5 tens and 2 ones? = 52 (B) · What number has 5 tens and 4 ones? = 54 (D) · What number has 3 tens and 8 ones? = 38 (R) · What number has 7 tens and 0 ones? = 70 (M)
- Clue 2 (Addition): "THE MATCH RECORD SHOWS RIGHT HANDED GRIP"17 + 10 = 27 (T) · 27 + 15 = 42 (S) · 28 + 38 = 66 (C) · 22 + 24 = 46 (P) · 22 + 13 = 35 (M) · 27 + 64 = 91 (A) · 19 + 11 = 30 (I) · 53 + 44 = 97 (O) · 19 + 41 = 60 (N) · 20 + 43 = 63 (E) · 51 + 37 = 88 (D) · 31 + 22 = 53 (W) · 49 + 25 = 74 (H) · 21 + 16 = 37 (G) · 23 + 10 = 33 (R)
- Clue 3 (Subtraction): "LOUD CHEER DISTRACTED THE TRICKY PLAYER"40 - 18 = 22 (L) · 53 - 33 = 20 (U) · 55 - 15 = 40 (Y) · 95 - 7 = 88 (D) · 46 - 5 = 41 (S) · 71 - 19 = 52 (C) · 55 - 39 = 16 (O) · 41 - 6 = 35 (T) · 63 - 4 = 59 (I) · 118 - 37 = 81 (K) · 101 - 37 = 64 (E) · 38 - 7 = 31 (A) · 33 - 1 = 32 (R) · 64 - 38 = 26 (P) · 56 - 27 = 29 (H)
- Clue 4 (Skip counting): "RED SWEATBAND SNAGGED ON TENNIS NET"Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14 = 10 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90 = 70 (B) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (W) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (G) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24 = 20 (O) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (E) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (I) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (N)
- Clue 5 (Missing addends): surviving statement (box 4) → Stefanos10 + ___ = 13 = 3 · 4 + ___ = 9 = 5 · 7 + ___ = 16 = 9 · 6 + ___ = 8 = 2 · 2 + ___ = 9 = 7 · 1 + ___ = 13 = 12 · 5 + ___ = 13 = 8 · 9 + ___ = 10 = 1 · 6 + ___ = 17 = 11 · 3 + ___ = 13 = 10 · 1 + ___ = 7 = 6
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Addition, Subtraction, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Great Tennis Court Mystery — set in Grand Slam Arena
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects