🚀 SpaceGrade 7Reading: grades 7-9Place valueAdditionSubtractionMultiplicationMissing addends
The Kepler Sabotage
A critical research data drive has been stolen from the core database of the Kepler-88 Orbiting Outpost, threatening to delay the station's deep-space telescope launch. The thief bypassed high-security locks and left behind highly specific physical evidence. As the station's Lead Security Analyst, you must trace the clues and unmask the saboteur before they broadcast the classified files into deep space.
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 Specialization | Utility Gear | Dominant Glove Wear | Helmet Fiber Trace | Station Countermeasure |
|---|---|---|---|---|---|
| Jessica Meir | plasma welder | magnetic gloves | left handed glove wear | static orange strands | sonic frequency pulse |
| Sunita Williams | laser cutter | EMP grenade | right handed glove wear | static orange strands | sonic frequency pulse |
| Yuri Gagarin | gravity boots | visor scanner | left handed glove wear | dusty white fibers | sonic frequency pulse |
| Chris Hadfield | plasma welder | visor scanner | right handed glove wear | singed blue locks | sonic frequency pulse |
| Neil Armstrong | jetpack harness | oxygen canister | left handed glove wear | singed blue locks | flashbang beam |
| Alan Shepard | hacking deck | EMP grenade | right handed glove wear | dusty white fibers | flashbang beam |
| Samantha Cristoforetti | laser cutter | tracker drone | left handed glove wear | singed blue locks | foam trap gel |
| Valentina Tereshkova | plasma welder | tracker drone | right handed glove wear | dusty white fibers | sonic frequency pulse |
| Jeanette Epps | plasma welder | visor scanner | right handed glove wear | static orange strands | sonic frequency pulse |
| Buzz Aldrin | gravity boots | magnetic gloves | left handed glove wear | singed blue locks | flashbang beam |
| Scott Kelly | jetpack harness | visor scanner | right handed glove wear | dusty white fibers | sonic frequency pulse |
| Mae Jemison | jetpack harness | magnetic gloves | right handed glove wear | singed blue locks | sonic frequency pulse |
| Christina Koch | jetpack harness | tracker drone | right handed glove wear | singed blue locks | sonic frequency pulse |
| Yi So-yeon | gravity boots | EMP grenade | left handed glove wear | static orange strands | sonic frequency pulse |
| Guion Bluford | gravity boots | EMP grenade | right handed glove wear | singed blue locks | sonic frequency pulse |
| Peggy Whitson | laser cutter | tracker drone | right handed glove wear | singed blue locks | sonic frequency pulse |
| John Glenn | hacking deck | tracker drone | right handed glove wear | singed blue locks | foam trap gel |
| Kalpana Chawla | laser cutter | visor scanner | right handed glove wear | dusty white fibers | flashbang beam |
| Michael Collins | jetpack harness | tracker drone | left handed glove wear | singed blue locks | flashbang beam |
| Tim Peake | jetpack harness | visor scanner | left handed glove wear | singed blue locks | sonic frequency pulse |
| Ellen Ochoa | laser cutter | oxygen canister | left handed glove wear | singed blue locks | foam trap gel |
Clue 1
Place value
To unlock the central terminal security log, you must analyze the digit alignment of the system's reboot override passcode.
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
70
9000
5000
60
3000
300
200
T
70
5000
40
10
8000
200
5000
60
100
200
T
70
9000
3000
2000
5000
3000
100
5000
600
500
400
10
5000
100
3000
8000
5000
What is the value of the 7 in 18,176?T
What is the value of the 5 in 15,279?E
What is the value of the 3 in 13,470?A
What is the value of the 1 in 67,817?R
What is the value of the 2 in 187,273?O
What is the value of the 2 in 12,369?V
What is the value of the 5 in 17,514?P
What is the value of the 4 in 936,426?G
What is the value of the 1 in 32,135?N
What is the value of the 8 in 48,376?D
What is the value of the 6 in 84,467?S
What is the value of the 3 in 129,361?B
What is the value of the 6 in 55,610?M
What is the value of the 9 in 89,578?H
What is the value of the 4 in 89,743?U
0/15 letters found
Clue 2
Addition
The airlock logs recorded the combined weight of several fuel cells loaded during the getaway, requiring you to sum the cargo manifest.
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
4836
6424
6200
9659
2426
9659
2683
6200
9687
T
4836
7852
6200
8633
T
4836
9259
6200
5412
2731
8753
2717
T
4836
6424
6200
2731
2672
8493
6424
T
4836
8493
7852
8753
5272
6200
3030 + 1806 =T
3643 + 6044 =C
4888 + 3605 =G
5902 + 3757 =S
1528 + 1189 =N
2859 + 3565 =H
2969 + 5664 =F
2803 + 5950 =O
4842 + 3010 =L
1785 + 887 =I
3295 + 5964 =W
3312 + 2100 =A
4165 + 2035 =E
3095 + 2177 =V
1202 + 1529 =R
1105 + 1578 =P
1520 + 906 =U
0/17 letters found
Clue 3
Subtraction
To determine how much emergency coolant was drained during the breach, you must find the difference between the starting tank level and the current reading.
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
2962
8225
1561
2496
7282
4046
8608
3562
8347
6107
6727
8347
2496
4046
1030
7832
6727
8591
8225
8347
8225
8980
6727
2496
2496
8347
4961
8980
3627
8347
5975
7282
8591
8591
A
2962
7282
2496
3353 - 391 =A
8142 - 1415 =U
7081 - 4585 =N
12723 - 3743 =T
10693 - 2468 =S
8246 - 4200 =C
7612 - 1505 =Q
5228 - 3667 =O
11990 - 4158 =P
6649 - 674 =V
12145 - 4863 =I
3666 - 2636 =Y
10332 - 1985 =E
13531 - 4923 =F
7821 - 4194 =H
5074 - 113 =D
3933 - 371 =R
9343 - 752 =L
0/18 letters found
Clue 4
Multiplication facts (1-12)
You intercept a damaged grid readout displaying rows of identical solar battery arrays and need to calculate the total energy units.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
36
12
60
32
77
55
20
96
90
77
96
21
33
25
S
36
49
77
80
77
96
77
35
28
21
60
28
3
77
110
11
60
77
96
9 × 4 =S
11 × 1 =A
7 × 3 =O
10 × 11 =P
11 × 7 =E
11 × 5 =D
8 × 10 =R
10 × 9 =U
4 × 7 =T
7 × 7 =W
4 × 8 =G
5 × 5 =K
5 × 4 =B
2 × 6 =I
8 × 12 =L
1 × 3 =H
7 × 5 =F
3 × 11 =C
6 × 10 =N
0/19 letters found
Clue 5
Missing addends — the last clue
The power grid requires a precise balance to run the diagnostics, and you must calculate the missing sector wattage to complete the circuit.
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
11 + ___ = 21
37 + ___ = 46
33 + ___ = 38
34 + ___ = 45
11 + ___ = 13
24 + ___ = 25
38 + ___ = 42
19 + ___ = 25
25 + ___ = 33
34 + ___ = 46
36 + ___ = 43
Step 2 — cross out the sentence with each answer
1.The villain disables the main gravity generator, then hides in the cargo bay shadows.
2.The villain corrupts the main telemetry system, then retreats to the asteroid mining deck.
3.The villain disables the main gravity generator, then flees via an emergency escape pod.
4.The villain reroutes the solar battery power, then flees via an emergency escape pod.
5.The villain overrides the station airlock locks, then hides in the cargo bay shadows.
6.The villain corrupts the main telemetry system, then hides in the cargo bay shadows.
7.The villain corrupts the main telemetry system, then escapes through the maintenance tube.
8.The villain reroutes the solar battery power, then escapes through the maintenance tube.
9.The villain overrides the station airlock locks, then retreats to the asteroid mining deck.
10.The villain reroutes the solar battery power, then retreats to the asteroid mining deck.
11.The villain disables the main gravity generator, then blends into the crew quarters crowd.
12.The villain disables the main gravity generator, then retreats to the asteroid mining deck.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Kepler Sabotage
Culprit: Chris Hadfield (plasma welder · visor scanner · right handed glove wear · singed blue locks · sonic frequency pulse)
- Clue 1 (Place value): "THE SABOTEUR DOES NOT HAVE AN EMP GRENADE"What is the value of the 7 in 18,176? = 70 (T) · What is the value of the 5 in 15,279? = 5000 (E) · What is the value of the 3 in 13,470? = 3000 (A) · What is the value of the 1 in 67,817? = 10 (R) · What is the value of the 2 in 187,273? = 200 (O) · What is the value of the 2 in 12,369? = 2000 (V) · What is the value of the 5 in 17,514? = 500 (P) · What is the value of the 4 in 936,426? = 400 (G) · What is the value of the 1 in 32,135? = 100 (N) · What is the value of the 8 in 48,376? = 8000 (D) · What is the value of the 6 in 84,467? = 60 (S) · What is the value of the 3 in 129,361? = 300 (B) · What is the value of the 6 in 55,610? = 600 (M) · What is the value of the 9 in 89,578? = 9000 (H) · What is the value of the 4 in 89,743? = 40 (U)
- Clue 2 (Addition): "THE SUSPECT LEFT WEAR ON THE RIGHT GLOVE"3030 + 1806 = 4836 (T) · 3643 + 6044 = 9687 (C) · 4888 + 3605 = 8493 (G) · 5902 + 3757 = 9659 (S) · 1528 + 1189 = 2717 (N) · 2859 + 3565 = 6424 (H) · 2969 + 5664 = 8633 (F) · 2803 + 5950 = 8753 (O) · 4842 + 3010 = 7852 (L) · 1785 + 887 = 2672 (I) · 3295 + 5964 = 9259 (W) · 3312 + 2100 = 5412 (A) · 4165 + 2035 = 6200 (E) · 3095 + 2177 = 5272 (V) · 1202 + 1529 = 2731 (R) · 1105 + 1578 = 2683 (P) · 1520 + 906 = 2426 (U)
- Clue 3 (Subtraction): "A SONIC FREQUENCY PULSE STUNNED THE VILLAIN"3353 - 391 = 2962 (A) · 8142 - 1415 = 6727 (U) · 7081 - 4585 = 2496 (N) · 12723 - 3743 = 8980 (T) · 10693 - 2468 = 8225 (S) · 8246 - 4200 = 4046 (C) · 7612 - 1505 = 6107 (Q) · 5228 - 3667 = 1561 (O) · 11990 - 4158 = 7832 (P) · 6649 - 674 = 5975 (V) · 12145 - 4863 = 7282 (I) · 3666 - 2636 = 1030 (Y) · 10332 - 1985 = 8347 (E) · 13531 - 4923 = 8608 (F) · 7821 - 4194 = 3627 (H) · 5074 - 113 = 4961 (D) · 3933 - 371 = 3562 (R) · 9343 - 752 = 8591 (L)
- Clue 4 (Multiplication facts (1-12)): "SINGED BLUE LOCKS WERE LEFT ON THE PANEL"9 × 4 = 36 (S) · 11 × 1 = 11 (A) · 7 × 3 = 21 (O) · 10 × 11 = 110 (P) · 11 × 7 = 77 (E) · 11 × 5 = 55 (D) · 8 × 10 = 80 (R) · 10 × 9 = 90 (U) · 4 × 7 = 28 (T) · 7 × 7 = 49 (W) · 4 × 8 = 32 (G) · 5 × 5 = 25 (K) · 5 × 4 = 20 (B) · 2 × 6 = 12 (I) · 8 × 12 = 96 (L) · 1 × 3 = 3 (H) · 7 × 5 = 35 (F) · 3 × 11 = 33 (C) · 6 × 10 = 60 (N)
- Clue 5 (Missing addends): surviving statement (box 3) → Chris Hadfield11 + ___ = 21 = 10 · 37 + ___ = 46 = 9 · 33 + ___ = 38 = 5 · 34 + ___ = 45 = 11 · 11 + ___ = 13 = 2 · 24 + ___ = 25 = 1 · 38 + ___ = 42 = 4 · 19 + ___ = 25 = 6 · 25 + ___ = 33 = 8 · 34 + ___ = 46 = 12 · 36 + ___ = 43 = 7
About this mystery
- Grade level
- Grade 7 math
- Math topics
- Place value, Addition, Subtraction, Multiplication, Missing addends
- Reading level
- grades 7-9
- Theme
- The Kepler Sabotage — set in Kepler-88 Orbiting Outpost
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects