🚀 Dinosaurs, Space, Cats, BaskGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Astro-Cat Space Station Mystery
Someone zapped the Chief Space Mechanic's laser wrench on Starbase Whisker Nine! Follow the clues around the space station to find out who did it.
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 | Robot Gear | Space Gadget | Glove Type | Fur Color | Dislike |
|---|---|---|---|---|---|
| Ziggy Starcat | Plasma Shield | Moon Sensor | Right Paw Glove | Purple Fur | Loud Whistles |
| Pixel Pounce | Laser Boots | Cosmic Compass | Left Paw Glove | Purple Fur | Bright Beams |
| Captain Whiskers | Jet Pack | Star Map | Left Paw Glove | Neon Green Fur | Bright Beams |
| Vector Vince | Rocket Skates | Star Map | Right Paw Glove | Purple Fur | Loud Whistles |
| Turbo Toby | Laser Boots | Starlight Scope | Right Paw Glove | Orange Fur | Bright Beams |
| Cosmic Cleo | Laser Boots | Cosmic Compass | Left Paw Glove | Purple Fur | Loud Whistles |
| Rocket Rosie | Jet Pack | Astro Helm | Right Paw Glove | Purple Fur | Loud Whistles |
| Officer Socks | Laser Boots | Astro Helm | Left Paw Glove | Orange Fur | Bright Beams |
| Astro Spot | Laser Boots | Moon Sensor | Left Paw Glove | Purple Fur | Loud Whistles |
| Sparky Tails | Laser Boots | Starlight Scope | Right Paw Glove | Neon Green Fur | Squeaky Toys |
| Byte Barnaby | Plasma Shield | Moon Sensor | Left Paw Glove | Neon Green Fur | Loud Whistles |
| Commander Paws | Jet Pack | Astro Helm | Right Paw Glove | Purple Fur | Squeaky Toys |
| Cadet Boots | Rocket Skates | Star Map | Left Paw Glove | Purple Fur | Squeaky Toys |
| Pixel Penny | Plasma Shield | Star Map | Left Paw Glove | Orange Fur | Loud Whistles |
| Laser Luna | Rocket Skates | Astro Helm | Left Paw Glove | Neon Green Fur | Squeaky Toys |
| Gizmo Gracie | Plasma Shield | Starlight Scope | Right Paw Glove | Orange Fur | Squeaky Toys |
| Radar Rex | Laser Boots | Star Map | Left Paw Glove | Purple Fur | Loud Whistles |
| Orbit Ollie | Jet Pack | Cosmic Compass | Left Paw Glove | Purple Fur | Loud Whistles |
| Major Felix | Jet Pack | Starlight Scope | Left Paw Glove | Purple Fur | Loud Whistles |
| Bandit Buttons | Magnet Hook | Star Map | Right Paw Glove | Purple Fur | Loud Whistles |
| Comet Chester | Jet Pack | Moon Sensor | Right Paw Glove | Purple Fur | Bright Beams |
Clue 1
Addition
You add the space rocks gathered near the landing pad to get the first clue 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.
T
11
18
12
9
10
14
14
13
10
4
3
2
12
5
4
2
T
11
20
5
12
13
5
T
11
13
7
14
10
16
18
T
11
5
8
2
17
12
5 + 6 =T
5 + 4 =V
5 + 5 =I
2 + 5 =R
1 + 4 =S
5 + 11 =G
10 + 4 =L
2 + 1 =D
6 + 2 =C
7 + 5 =E
6 + 7 =A
1 + 1 =O
3 + 1 =N
7 + 11 =H
11 + 9 =U
9 + 8 =P
0/16 letters found
Clue 2
Subtraction
You take away broken solar panels to uncover a hidden message.
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
3
19
15
13
14
11
11
9
14
6
5
15
9
1
16
9
11
15
18
T
3
17
9
5
2
11
7
13
15
5 - 2 =T
20 - 2 =F
19 - 6 =V
2 - 1 =R
20 - 1 =H
17 - 8 =A
12 - 5 =O
18 - 3 =E
19 - 8 =L
11 - 9 =G
19 - 2 =P
18 - 2 =S
11 - 5 =N
8 - 3 =W
18 - 4 =I
0/15 letters found
Clue 3
Skip counting
You count the shiny star tiles by twos along the hallway floor.
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
40
60
39
130
36
21
21
110
36
12
65
25
12
9
110
18
110
14
20
65
30
80
21
30
25
45
18
60
36
9
T
40
21
39
9
Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60T
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, ___, 12, 15S
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45E
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27L
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35U
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130A
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30F
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18Y
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24W
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75R
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150V
0/17 letters found
Clue 4
Place value
You check the digit counters on the robot control board to read a note.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
P
77
76
35
P
77
87
31
53
76
35
63
34
74
87
31
53
81
34
81
81
28
31
74
37
31
70
31
What number has 7 tens and 7 ones?P
What number has 3 tens and 7 ones?C
What number has 8 tens and 7 ones?L
What number has 6 tens and 3 ones?W
What number has 3 tens and 5 ones?R
What number has 2 tens and 8 ones?H
What number has 7 tens and 0 ones?N
What number has 7 tens and 4 ones?S
What number has 8 tens and 1 one?T
What number has 5 tens and 3 ones?F
What number has 7 tens and 6 ones?U
What number has 3 tens and 4 ones?A
What number has 3 tens and 1 one?E
0/13 letters found
Clue 5
Missing addends — the last clue
You figure out how many energy cells are missing from the charging rack.
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 + ___ = 12
3 + ___ = 10
7 + ___ = 11
9 + ___ = 15
6 + ___ = 11
3 + ___ = 15
10 + ___ = 11
6 + ___ = 16
5 + ___ = 14
3 + ___ = 5
4 + ___ = 15
Step 2 — cross out the sentence with each answer
1.The villain swung on magnet hook, then adjusted the astro helm.
2.The villain blocked with plasma shield, then checked the cosmic compass.
3.The villain dashed with laser boots, then checked the cosmic compass.
4.The villain dashed with laser boots, then read the star map.
5.The villain zipped on rocket skates, then checked the cosmic compass.
6.The villain zipped on rocket skates, then pinged the moon sensor.
7.The villain zoomed in with jet pack, then checked the cosmic compass.
8.The villain dashed with laser boots, then pinged the moon sensor.
9.The villain zoomed in with jet pack, then adjusted the astro helm.
10.The villain blocked with plasma shield, then read the star map.
11.The villain blocked with plasma shield, then scanned with starlight scope.
12.The villain zoomed in with jet pack, then read the star map.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Astro-Cat Space Station Mystery
Culprit: Cosmic Cleo (Laser Boots · Cosmic Compass · Left Paw Glove · Purple Fur · Loud Whistles)
- Clue 1 (Addition): "THE VILLAIN DOES NOT USE A STARLIGHT SCOPE"5 + 6 = 11 (T) · 5 + 4 = 9 (V) · 5 + 5 = 10 (I) · 2 + 5 = 7 (R) · 1 + 4 = 5 (S) · 5 + 11 = 16 (G) · 10 + 4 = 14 (L) · 2 + 1 = 3 (D) · 6 + 2 = 8 (C) · 7 + 5 = 12 (E) · 6 + 7 = 13 (A) · 1 + 1 = 2 (O) · 3 + 1 = 4 (N) · 7 + 11 = 18 (H) · 11 + 9 = 20 (U) · 9 + 8 = 17 (P)
- Clue 2 (Subtraction): "THE VILLAIN WEARS A LEFT PAW GLOVE"5 - 2 = 3 (T) · 20 - 2 = 18 (F) · 19 - 6 = 13 (V) · 2 - 1 = 1 (R) · 20 - 1 = 19 (H) · 17 - 8 = 9 (A) · 12 - 5 = 7 (O) · 18 - 3 = 15 (E) · 19 - 8 = 11 (L) · 11 - 9 = 2 (G) · 19 - 2 = 17 (P) · 18 - 2 = 16 (S) · 11 - 5 = 6 (N) · 8 - 3 = 5 (W) · 18 - 4 = 14 (I)
- Clue 3 (Skip counting): "THE VILLAIN RUNS AWAY FROM LOUD WHISTLES"Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60 = 40 (T) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (H) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (S) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36 = 30 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (E) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (L) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (F) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (Y) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24 = 18 (W) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (M) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (I) · 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 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (V)
- Clue 4 (Place value): "PURPLE FUR WAS LEFT AT THE SCENE"What number has 7 tens and 7 ones? = 77 (P) · What number has 3 tens and 7 ones? = 37 (C) · What number has 8 tens and 7 ones? = 87 (L) · What number has 6 tens and 3 ones? = 63 (W) · What number has 3 tens and 5 ones? = 35 (R) · What number has 2 tens and 8 ones? = 28 (H) · What number has 7 tens and 0 ones? = 70 (N) · What number has 7 tens and 4 ones? = 74 (S) · What number has 8 tens and 1 one? = 81 (T) · What number has 5 tens and 3 ones? = 53 (F) · What number has 7 tens and 6 ones? = 76 (U) · What number has 3 tens and 4 ones? = 34 (A) · What number has 3 tens and 1 one? = 31 (E)
- Clue 5 (Missing addends): surviving statement (box 3) → Cosmic Cleo4 + ___ = 12 = 8 · 3 + ___ = 10 = 7 · 7 + ___ = 11 = 4 · 9 + ___ = 15 = 6 · 6 + ___ = 11 = 5 · 3 + ___ = 15 = 12 · 10 + ___ = 11 = 1 · 6 + ___ = 16 = 10 · 5 + ___ = 14 = 9 · 3 + ___ = 5 = 2 · 4 + ___ = 15 = 11
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 Astro-Cat Space Station Mystery — set in Starbase Whisker Nine
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects