🔎 Solar systemGrade 2Reading: grades 3-4AdditionSubtractionPlace valueSkip countingMissing addends
The Solar System Satellite Heist
Someone snatched the golden telescope lens from the Starlight Space Station! The Chief Astronomer needs your math skills to narrow down the suspects.
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 | Primary Gear | Secondary Gadget | Dominant Hand | Space Suit Hair | Secret Weakness |
|---|---|---|---|---|---|
| Marshal Tycho | Plasma Torch | Orbital Beacon | Right Handed | Bright Blue Hair | Bright Flashlight |
| Agent Polaris | Starlight Shield | Comet Scanner | Right Handed | Neon Silver Hair | Loud Siren |
| Chief Kepler | Solar Laser | Nebula Cloak | Right Handed | Dark Violet Hair | Bright Flashlight |
| Officer Orion | Asteroid Net | Nebula Cloak | Right Handed | Bright Blue Hair | Magnetic Field |
| Captain Nova | Starlight Shield | Meteor Cannon | Left Handed | Bright Blue Hair | Magnetic Field |
| Professor Comet | Solar Laser | Meteor Cannon | Right Handed | Neon Silver Hair | Bright Flashlight |
| Captain Atlas | Plasma Torch | Rover Jetpack | Right Handed | Dark Violet Hair | Bright Flashlight |
| Tech Pulsar | Asteroid Net | Rover Jetpack | Right Handed | Dark Violet Hair | Bright Flashlight |
| Officer Celeste | Plasma Torch | Nebula Cloak | Left Handed | Neon Silver Hair | Bright Flashlight |
| Major Eclipse | Plasma Torch | Rover Jetpack | Right Handed | Neon Silver Hair | Bright Flashlight |
| Specialist Titan | Gravity Boots | Orbital Beacon | Right Handed | Bright Blue Hair | Magnetic Field |
| Dr Cosmos | Plasma Torch | Orbital Beacon | Right Handed | Bright Blue Hair | Magnetic Field |
| Agent Rigel | Starlight Shield | Rover Jetpack | Right Handed | Bright Blue Hair | Magnetic Field |
| Cadet Stella | Asteroid Net | Nebula Cloak | Left Handed | Dark Violet Hair | Magnetic Field |
| Pilot Vega | Starlight Shield | Rover Jetpack | Right Handed | Neon Silver Hair | Loud Siren |
| Ranger Zenith | Gravity Boots | Meteor Cannon | Right Handed | Bright Blue Hair | Magnetic Field |
| Commander Vance | Gravity Boots | Nebula Cloak | Right Handed | Neon Silver Hair | Bright Flashlight |
| Scout Carina | Plasma Torch | Meteor Cannon | Right Handed | Neon Silver Hair | Magnetic Field |
| Dr Halley | Asteroid Net | Orbital Beacon | Left Handed | Bright Blue Hair | Magnetic Field |
| Navigator Sol | Solar Laser | Orbital Beacon | Right Handed | Dark Violet Hair | Magnetic Field |
| Scout Lyra | Asteroid Net | Orbital Beacon | Left Handed | Bright Blue Hair | Loud Siren |
Clue 1
Addition
Astronaut Leo totaled up the glowing solar panels to unlock the main computer drive.
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
95
24
77
71
37
74
51
79
T
27
36
35
24
29
82
35
T
27
95
44
39
24
44
82
24
61
71
37
44
77
37
35
44
38
17 + 10 =T
55 + 24 =I
25 + 52 =C
41 + 33 =P
24 + 37 =B
21 + 16 =L
19 + 10 =S
54 + 28 =N
27 + 11 =K
17 + 7 =E
31 + 13 =A
25 + 26 =R
13 + 26 =V
15 + 20 =O
28 + 43 =U
15 + 21 =D
63 + 32 =H
0/17 letters found
Clue 2
Subtraction
The team subtracted the damaged space probes from the launch list to read the next report.
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
47
66
12
55
60
24
24
24
23
W
47
12
67
60
37
41
24
60
12
67
60
66
72
72
66
26
67
12
67
23
55
68
85 - 38 =W
44 - 18 =G
87 - 32 =N
64 - 40 =S
59 - 18 =U
81 - 14 =H
44 - 32 =T
65 - 5 =E
94 - 26 =D
39 - 16 =A
97 - 25 =R
76 - 39 =M
105 - 39 =I
0/13 letters found
Clue 3
Place value
Analyzing the place value display on the satellite monitor revealed a hidden message 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.
A
68
85
A
68
46
62
56
24
21
57
22
21
56
36
92
24
67
A
68
32
32
56
92
24
38
56
57
91
36
32
67
21
24
What number has 6 tens and 8 ones?A
What number has 5 tens and 6 ones?E
What number has 2 tens and 1 one?I
What number has 2 tens and 4 ones?T
What number has 8 tens and 5 ones?M
What number has 3 tens and 2 ones?P
What number has 3 tens and 6 ones?L
What number has 9 tens and 1 one?U
What number has 5 tens and 7 ones?C
What number has 2 tens and 2 ones?F
What number has 4 tens and 6 ones?G
What number has 6 tens and 2 ones?N
What number has 9 tens and 2 ones?D
What number has 3 tens and 8 ones?H
What number has 6 tens and 7 ones?R
0/15 letters found
Clue 4
Skip counting
Counting the rows of telescope lenses by fives provided the safe combination.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
B
30
28
80
6
45
16
B
30
50
70
40
45
60
80
28
130
60
33
20
39
70
27
55
60
16
16
45
40
33
15
40
27
40
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50B
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20T
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33N
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45O
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100I
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150W
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80A
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10G
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65D
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32R
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25C
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70L
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90U
0/17 letters found
Clue 5
Missing addends — the last clue
Solving the missing addend on the oxygen reserve meter opened the secret lab door.
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 + ___ = 8
9 + ___ = 14
3 + ___ = 6
5 + ___ = 11
10 + ___ = 22
3 + ___ = 4
9 + ___ = 16
6 + ___ = 8
3 + ___ = 12
7 + ___ = 18
10 + ___ = 20
Step 2 — cross out the sentence with each answer
1.The villain scooped the prize in an asteroid net, then fled under cover of a nebula cloak.
2.The villain blocked the guards with a starlight shield, then blasted through rocks with a meteor cannon.
3.The villain blocked the guards with a starlight shield, then escaped using a rover jetpack.
4.The villain cut the doors with a plasma torch, then guided the ship with an orbital beacon.
5.The villain marched inside with gravity boots, then guided the ship with an orbital beacon.
6.The villain blocked the guards with a starlight shield, then guided the ship with an orbital beacon.
7.The villain zapped the vault with a solar laser, then blasted through rocks with a meteor cannon.
8.The villain marched inside with gravity boots, then blasted through rocks with a meteor cannon.
9.The villain scooped the prize in an asteroid net, then blasted through rocks with a meteor cannon.
10.The villain cut the doors with a plasma torch, then escaped using a rover jetpack.
11.The villain blocked the guards with a starlight shield, then fled under cover of a nebula cloak.
12.The villain blocked the guards with a starlight shield, then tracked the route with a comet scanner.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Solar System Satellite Heist
Culprit: Ranger Zenith (Gravity Boots · Meteor Cannon · Right Handed · Bright Blue Hair · Magnetic Field)
- Clue 1 (Addition): "THE CULPRIT DOES NOT HAVE A NEBULA CLOAK"17 + 10 = 27 (T) · 55 + 24 = 79 (I) · 25 + 52 = 77 (C) · 41 + 33 = 74 (P) · 24 + 37 = 61 (B) · 21 + 16 = 37 (L) · 19 + 10 = 29 (S) · 54 + 28 = 82 (N) · 27 + 11 = 38 (K) · 17 + 7 = 24 (E) · 31 + 13 = 44 (A) · 25 + 26 = 51 (R) · 13 + 26 = 39 (V) · 15 + 20 = 35 (O) · 28 + 43 = 71 (U) · 15 + 21 = 36 (D) · 63 + 32 = 95 (H)
- Clue 2 (Subtraction): "WITNESS SAW THEM USE THEIR RIGHT HAND"85 - 38 = 47 (W) · 44 - 18 = 26 (G) · 87 - 32 = 55 (N) · 64 - 40 = 24 (S) · 59 - 18 = 41 (U) · 81 - 14 = 67 (H) · 44 - 32 = 12 (T) · 65 - 5 = 60 (E) · 94 - 26 = 68 (D) · 39 - 16 = 23 (A) · 97 - 25 = 72 (R) · 76 - 39 = 37 (M) · 105 - 39 = 66 (I)
- Clue 3 (Place value): "A MAGNETIC FIELD TRAPPED THE CULPRIT"What number has 6 tens and 8 ones? = 68 (A) · What number has 5 tens and 6 ones? = 56 (E) · What number has 2 tens and 1 one? = 21 (I) · What number has 2 tens and 4 ones? = 24 (T) · What number has 8 tens and 5 ones? = 85 (M) · What number has 3 tens and 2 ones? = 32 (P) · What number has 3 tens and 6 ones? = 36 (L) · What number has 9 tens and 1 one? = 91 (U) · What number has 5 tens and 7 ones? = 57 (C) · What number has 2 tens and 2 ones? = 22 (F) · What number has 4 tens and 6 ones? = 46 (G) · What number has 6 tens and 2 ones? = 62 (N) · What number has 9 tens and 2 ones? = 92 (D) · What number has 3 tens and 8 ones? = 38 (H) · What number has 6 tens and 7 ones? = 67 (R)
- Clue 4 (Skip counting): "BRIGHT BLUE HAIR WAS FOUND AT THE SCENE"Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50 = 30 (B) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (T) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (N) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24 = 20 (F) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (O) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (I) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (W) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50 = 40 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (A) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (G) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (D) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (R) · Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (C) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (L) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90 = 70 (U)
- Clue 5 (Missing addends): surviving statement (box 8) → Ranger Zenith4 + ___ = 8 = 4 · 9 + ___ = 14 = 5 · 3 + ___ = 6 = 3 · 5 + ___ = 11 = 6 · 10 + ___ = 22 = 12 · 3 + ___ = 4 = 1 · 9 + ___ = 16 = 7 · 6 + ___ = 8 = 2 · 3 + ___ = 12 = 9 · 7 + ___ = 18 = 11 · 10 + ___ = 20 = 10
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Addition, Subtraction, Place value, Skip counting, Missing addends
- Reading level
- grades 3-4
- Theme
- The Solar System Satellite Heist — set in Starlight Space Station
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects