🦕 Soccer, Dinosaurs, Unicorns,Grade 2Reading: grades 1-2Place valueSubtractionAdditionSkip countingMissing addends
The Robo-Dino Cup Mystery
The big game is about to start! But oh no! Someone stole the Shiny Golden Cup. The referee needs your help to 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 | Main Power | Special Skill | Kicking Foot | Coat Type | How to Stop Them |
|---|---|---|---|---|---|
| Steggy | Fire Breath | Speed Sprint | Kicks with right foot | Green scales | Loud whistles |
| Claw | Pixel Shield | Block Wall | Kicks with left foot | Green scales | Catnip toys |
| Purr-fect | Laser Tail | Speed Sprint | Kicks with right foot | Pink mane | Loud whistles |
| Striker | Turbo Booster | Block Wall | Kicks with left foot | Pink mane | Shiny lasers |
| Rainbow Kick | Magic Horn | Speed Sprint | Kicks with left foot | Pink mane | Loud whistles |
| Mittens | Magic Horn | Yarn Toss | Kicks with left foot | Silver metal fur | Loud whistles |
| Tricera-Bot | Turbo Booster | Sparkle Dash | Kicks with left foot | Green scales | Catnip toys |
| Fang | Magic Horn | Robo Kick | Kicks with left foot | Silver metal fur | Loud whistles |
| Robo Ronaldo | Magic Horn | Block Wall | Kicks with right foot | Pink mane | Loud whistles |
| Robo Messi | Turbo Booster | Sparkle Dash | Kicks with left foot | Pink mane | Loud whistles |
| Pixel Rover | Pixel Shield | Block Wall | Kicks with right foot | Pink mane | Catnip toys |
| Shiny Tail | Fire Breath | Speed Sprint | Kicks with right foot | Silver metal fur | Shiny lasers |
| Laser Cat | Magic Horn | Sparkle Dash | Kicks with right foot | Pink mane | Loud whistles |
| Turbo Kitty | Magic Horn | Yarn Toss | Kicks with right foot | Pink mane | Loud whistles |
| Bolt | Pixel Shield | Speed Sprint | Kicks with left foot | Pink mane | Loud whistles |
| Pixel Alex | Laser Tail | Yarn Toss | Kicks with right foot | Pink mane | Catnip toys |
| Rusty | Turbo Booster | Block Wall | Kicks with left foot | Silver metal fur | Catnip toys |
| Sparky | Turbo Booster | Yarn Toss | Kicks with left foot | Pink mane | Loud whistles |
| Ziggy | Fire Breath | Yarn Toss | Kicks with right foot | Pink mane | Loud whistles |
| Rex | Pixel Shield | Block Wall | Kicks with left foot | Green scales | Loud whistles |
| Uni-Pup | Turbo Booster | Robo Kick | Kicks with right foot | Green scales | Catnip toys |
Clue 1
Place value
We check the stadium scoreboard. The flashing screen shows the digits of a mystery code. Help us find the tens value!
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
21
58
80
T
21
58
30
80
96
37
55
80
31
36
55
T
21
41
31
80
T
21
58
80
43
28
55
71
69
27
77
28
28
What number has 2 tens and 1 one?T
What number has 9 tens and 6 ones?F
What number has 3 tens and 0 ones?I
What number has 5 tens and 8 ones?H
What number has 4 tens and 1 one?U
What number has 7 tens and 7 ones?A
What number has 3 tens and 6 ones?N
What number has 3 tens and 7 ones?D
What number has 6 tens and 9 ones?K
What number has 3 tens and 1 one?S
What number has 8 tens and 0 ones?E
What number has 5 tens and 5 ones?O
What number has 7 tens and 1 one?C
What number has 4 tens and 3 ones?B
What number has 2 tens and 7 ones?W
What number has 2 tens and 8 ones?L
0/16 letters found
Clue 2
Subtraction
A dino-bot stomped on our soccer ball basket. We had many balls, but some got flat. Subtract to find out 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
35
29
22
65
12
22
50
23
46
50
45
88
23
T
35
29
T
35
29
22
16
23
52
29
T
35
65
12
12
T
35
37 - 2 =T
68 - 3 =F
33 - 10 =I
90 - 2 =W
27 - 5 =E
71 - 19 =G
66 - 20 =C
38 - 22 =R
67 - 38 =H
32 - 20 =O
73 - 28 =S
62 - 12 =K
0/12 letters found
Clue 3
Addition
The kitty robots need power cubes to run. We collect yellow cubes and pink cubes. Add them up 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
59
87
89
22
87
74
T
59
89
44
26
34
68
41
87
62
76
T
59
44
89
76
24 + 35 =T
13 + 9 =Y
38 + 24 =I
62 + 27 =E
50 + 26 =S
59 + 28 =H
24 + 44 =D
34 + 40 =A
17 + 9 =O
29 + 15 =L
12 + 29 =W
24 + 10 =U
0/12 letters found
Clue 4
Skip counting
Look at the grassy field! We see a trail of shiny dino tracks. Count by twos to follow the path!
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
18
36
30
55
20
12
120
110
140
60
24
110
12
120
55
30
39
45
12
25
50
110
12
36
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22W
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42E
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30R
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35K
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130A
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18N
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 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36F
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45P
0/15 letters found
Clue 5
Missing addends — the last clue
We have ten gears to fix our unicorn robot, but some are missing. How many more do we need to make ten?
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 + ___ = 6
5 + ___ = 6
8 + ___ = 14
3 + ___ = 7
8 + ___ = 19
1 + ___ = 9
4 + ___ = 13
10 + ___ = 13
5 + ___ = 10
8 + ___ = 15
4 + ___ = 14
Step 2 — cross out the sentence with each answer
1.The villain glows with a magic horn, then throws a colorful yarn toss.
2.The villain glows with a magic horn, then escapes with a sparkle dash.
3.The villain blows a puff of fire breath, then starts a quick speed sprint.
4.The villain activates a pixel shield, then performs a heavy robo kick.
5.The villain turns on a turbo booster, then performs a heavy robo kick.
6.The villain zaps with a laser tail, then starts a quick speed sprint.
7.The villain glows with a magic horn, then performs a heavy robo kick.
8.The villain turns on a turbo booster, then starts a quick speed sprint.
9.The villain activates a pixel shield, then builds a high block wall.
10.The villain blows a puff of fire breath, then builds a high block wall.
11.The villain zaps with a laser tail, then builds a high block wall.
12.The villain blows a puff of fire breath, then throws a colorful yarn toss.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Robo-Dino Cup Mystery
Culprit: Ziggy (Fire Breath · Yarn Toss · Kicks with right foot · Pink mane · Loud whistles)
- Clue 1 (Place value): "THE THIEF DOES NOT USE THE BLOCK WALL"What number has 2 tens and 1 one? = 21 (T) · What number has 9 tens and 6 ones? = 96 (F) · What number has 3 tens and 0 ones? = 30 (I) · What number has 5 tens and 8 ones? = 58 (H) · What number has 4 tens and 1 one? = 41 (U) · What number has 7 tens and 7 ones? = 77 (A) · What number has 3 tens and 6 ones? = 36 (N) · What number has 3 tens and 7 ones? = 37 (D) · What number has 6 tens and 9 ones? = 69 (K) · What number has 3 tens and 1 one? = 31 (S) · What number has 8 tens and 0 ones? = 80 (E) · What number has 5 tens and 5 ones? = 55 (O) · What number has 7 tens and 1 one? = 71 (C) · What number has 4 tens and 3 ones? = 43 (B) · What number has 2 tens and 7 ones? = 27 (W) · What number has 2 tens and 8 ones? = 28 (L)
- Clue 2 (Subtraction): "THE FOE KICKS WITH THE RIGHT FOOT"37 - 2 = 35 (T) · 68 - 3 = 65 (F) · 33 - 10 = 23 (I) · 90 - 2 = 88 (W) · 27 - 5 = 22 (E) · 71 - 19 = 52 (G) · 66 - 20 = 46 (C) · 38 - 22 = 16 (R) · 67 - 38 = 29 (H) · 32 - 20 = 12 (O) · 73 - 28 = 45 (S) · 62 - 12 = 50 (K)
- Clue 3 (Addition): "THEY HATE LOUD WHISTLES"24 + 35 = 59 (T) · 13 + 9 = 22 (Y) · 38 + 24 = 62 (I) · 62 + 27 = 89 (E) · 50 + 26 = 76 (S) · 59 + 28 = 87 (H) · 24 + 44 = 68 (D) · 34 + 40 = 74 (A) · 17 + 9 = 26 (O) · 29 + 15 = 44 (L) · 12 + 29 = 41 (W) · 24 + 10 = 34 (U)
- Clue 4 (Skip counting): "WE FOUND A STRAND OF PINK MANE"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22 = 18 (W) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (E) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (R) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (K) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (A) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (N) · 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 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36 = 30 (F) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (M) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (P)
- Clue 5 (Missing addends): surviving statement (box 12) → Ziggy4 + ___ = 6 = 2 · 5 + ___ = 6 = 1 · 8 + ___ = 14 = 6 · 3 + ___ = 7 = 4 · 8 + ___ = 19 = 11 · 1 + ___ = 9 = 8 · 4 + ___ = 13 = 9 · 10 + ___ = 13 = 3 · 5 + ___ = 10 = 5 · 8 + ___ = 15 = 7 · 4 + ___ = 14 = 10
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Subtraction, Addition, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Robo-Dino Cup Mystery — set in the Pixel-Craft Dino Soccer Stadium
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects