🚀 SpaceGrade 4Reading: grades 3-4AdditionRoundingSubtractionMultiplicationDivision
The Starlight Station Sabotage
A sneaky space bandit snuck into Lunar Outpost Alpha and scrambled the telescope data! Cadet Leo and the Astro Squad need your help to crack the clues, examine the evidence, and identify the culprit before the moon rover departs.
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 | Space Gear | Alien Gadget | Helmet Visor | Space Suit Color | Countermeasure |
|---|---|---|---|---|---|
| Peggy Whitson | Jetpack Pack | Moon Ray | Gold Visor | Neon Blue Suit | Solar Flare Flash |
| Valentina Tereshkova | Magnetic Boots | Starlight Ray | Gold Visor | Cosmic Purple Suit | Solar Flare Flash |
| Sally Ride | Gravity Glove | Moon Ray | Gold Visor | Cosmic Purple Suit | Solar Flare Flash |
| Chris Hadfield | Jetpack Pack | Comet Blaster | Gold Visor | Cosmic Purple Suit | Sonic Whistle |
| Jeanette Epps | Gravity Glove | Comet Blaster | Silver Visor | Neon Blue Suit | Sonic Whistle |
| Neil Armstrong | Jetpack Pack | Plasma Shield | Silver Visor | Cosmic Purple Suit | Sonic Whistle |
| Jonny Kim | Gravity Glove | Comet Blaster | Gold Visor | Solar Orange Suit | Sonic Whistle |
| Sunita Williams | Laser Torch | Nebula Beam | Silver Visor | Cosmic Purple Suit | EMP Blast |
| Ellen Ochoa | Jetpack Pack | Plasma Shield | Gold Visor | Solar Orange Suit | Sonic Whistle |
| Yuri Gagarin | Laser Torch | Moon Ray | Silver Visor | Neon Blue Suit | EMP Blast |
| Buzz Aldrin | Jetpack Pack | Plasma Shield | Silver Visor | Neon Blue Suit | EMP Blast |
| Mae Jemison | Magnetic Boots | Comet Blaster | Gold Visor | Neon Blue Suit | Solar Flare Flash |
| Victor Glover | Magnetic Boots | Moon Ray | Silver Visor | Cosmic Purple Suit | Sonic Whistle |
| Christina Koch | Magnetic Boots | Comet Blaster | Gold Visor | Neon Blue Suit | Sonic Whistle |
| Bernard Harris | Radar Helmet | Starlight Ray | Silver Visor | Neon Blue Suit | Sonic Whistle |
| Michael Collins | Jetpack Pack | Plasma Shield | Silver Visor | Neon Blue Suit | Sonic Whistle |
| Kalpana Chawla | Gravity Glove | Moon Ray | Gold Visor | Neon Blue Suit | Sonic Whistle |
| Leland Melvin | Jetpack Pack | Nebula Beam | Gold Visor | Solar Orange Suit | EMP Blast |
| Alan Shepard | Radar Helmet | Plasma Shield | Silver Visor | Neon Blue Suit | Sonic Whistle |
| John Glenn | Laser Torch | Nebula Beam | Silver Visor | Neon Blue Suit | Sonic Whistle |
| Joseph Acaba | Gravity Glove | Starlight Ray | Silver Visor | Neon Blue Suit | EMP Blast |
Clue 1
Addition
The station guard tallied up all the damaged solar panels across the docks to uncover 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
8833
6629
4597
3015
3807
3005
6436
6929
T
8833
6436
6065
4597
4273
3005
6065
T
8833
4230
4273
4597
3807
4487
6065
9286
4597
T
8833
3015
8347
3807
4273
T
8833
4597
3508
4496 + 4337 =T
2559 + 4370 =I
1787 + 2443 =U
3704 + 2925 =H
3048 + 1439 =C
1764 + 2043 =A
2004 + 1001 =N
2435 + 3630 =O
1114 + 1901 =B
4116 + 5170 =M
2252 + 2345 =E
3411 + 3025 =D
3691 + 4656 =L
1769 + 2504 =S
2362 + 1146 =R
0/15 letters found
Clue 2
Rounding
The sensor array only displays rounded energy readings, but it still reveals a hidden pattern.
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
290
70
A
290
200
9000
370
A
290
70
A
290
7000
4300
20
700
A
290
4300
3700
5000
90
700
3000
370
2000
200
A
290
900
5000
3700
430
9000
370
430
5000
900
2000
370
Round 286 to the nearest tenA
Round 1,692 to the nearest thousandO
Round 369 to the nearest tenR
Round 881 to the nearest hundredS
Round 7,180 to the nearest thousandU
Round 8,514 to the nearest thousandE
Round 4,326 to the nearest hundredG
Round 20 to the nearest tenH
Round 431 to the nearest tenV
Round 67 to the nearest tenC
Round 93 to the nearest tenN
Round 653 to the nearest hundredT
Round 195 to the nearest hundredM
Round 3,661 to the nearest hundredL
Round 4,531 to the nearest thousandI
Round 3,078 to the nearest thousandF
0/16 letters found
Clue 3
Subtraction
By subtracting the missing oxygen tanks from the total inventory, the team found a secret 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.
A
3430
6309
4119
7454
6309
7861
4741
5111
4119
5900
3819
6309
4119
7861
8151
4202
8029
7516
1114
4741
1644
8029
8151
6309
8029
4332
A
3430
5111
7516
4119
8151
A
3430
3819
A
3430
3824
7826 - 4396 =A
9256 - 4924 =B
11850 - 3699 =T
12719 - 4858 =S
4303 - 2659 =V
10344 - 2890 =G
6426 - 1685 =O
10957 - 3441 =D
4357 - 538 =W
8104 - 2204 =C
4623 - 504 =I
6387 - 1276 =N
8281 - 252 =E
10513 - 4204 =H
1373 - 259 =R
4637 - 813 =Y
4947 - 745 =L
0/17 letters found
Clue 4
Multiplication facts (1-12)
The technician counted rows of battery crates in the cargo bay to figure out the 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.
F
70
42
1
16
2
60
77
60
16
42
20
77
F
70
16
81
4
42
14
80
81
14
1
12
45
80
77
45
2
44
24
80
16
80
F
70
81
45
14
40
10 × 7 =F
5 × 12 =C
1 × 2 =I
1 × 1 =B
4 × 11 =T
8 × 10 =E
2 × 2 =M
5 × 4 =P
7 × 6 =A
2 × 7 =N
2 × 12 =W
4 × 4 =R
5 × 9 =U
7 × 11 =S
9 × 9 =O
4 × 3 =L
5 × 8 =D
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
Sharing space rations equally among the research pods unlocked the last data log.
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
70 ÷ 7 = ?
36 ÷ 6 = ?
25 ÷ 5 = ?
64 ÷ 8 = ?
99 ÷ 9 = ?
27 ÷ 9 = ?
9 ÷ 9 = ?
4 ÷ 2 = ?
7 ÷ 1 = ?
20 ÷ 5 = ?
9 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain grabbed with gravity glove, then charged the comet blaster.
2.The villain fired the laser torch, then deployed plasma shield.
3.The villain grabbed with gravity glove, then fired the nebula beam.
4.The villain activated magnetic boots, then beamed the starlight ray.
5.The villain fired the laser torch, then fired the nebula beam.
6.The villain scanned with radar helmet, then deployed plasma shield.
7.The villain used jetpack booster power, then charged the comet blaster.
8.The villain grabbed with gravity glove, then zapped with moon ray.
9.The villain used jetpack booster power, then zapped with moon ray.
10.The villain scanned with radar helmet, then beamed the starlight ray.
11.The villain activated magnetic boots, then fired the nebula beam.
12.The villain used jetpack booster power, then deployed plasma shield.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Starlight Station Sabotage
Culprit: Michael Collins (Jetpack Pack · Plasma Shield · Silver Visor · Neon Blue Suit · Sonic Whistle)
- Clue 1 (Addition): "THE BANDIT DOES NOT USE A COMET BLASTER"4496 + 4337 = 8833 (T) · 2559 + 4370 = 6929 (I) · 1787 + 2443 = 4230 (U) · 3704 + 2925 = 6629 (H) · 3048 + 1439 = 4487 (C) · 1764 + 2043 = 3807 (A) · 2004 + 1001 = 3005 (N) · 2435 + 3630 = 6065 (O) · 1114 + 1901 = 3015 (B) · 4116 + 5170 = 9286 (M) · 2252 + 2345 = 4597 (E) · 3411 + 3025 = 6436 (D) · 3691 + 4656 = 8347 (L) · 1769 + 2504 = 4273 (S) · 2362 + 1146 = 3508 (R)
- Clue 2 (Rounding): "A CAMERA CAUGHT A GLINT FROM A SILVER VISOR"Round 286 to the nearest ten = 290 (A) · Round 1,692 to the nearest thousand = 2000 (O) · Round 369 to the nearest ten = 370 (R) · Round 881 to the nearest hundred = 900 (S) · Round 7,180 to the nearest thousand = 7000 (U) · Round 8,514 to the nearest thousand = 9000 (E) · Round 4,326 to the nearest hundred = 4300 (G) · Round 20 to the nearest ten = 20 (H) · Round 431 to the nearest ten = 430 (V) · Round 67 to the nearest ten = 70 (C) · Round 93 to the nearest ten = 90 (N) · Round 653 to the nearest hundred = 700 (T) · Round 195 to the nearest hundred = 200 (M) · Round 3,661 to the nearest hundred = 3700 (L) · Round 4,531 to the nearest thousand = 5000 (I) · Round 3,078 to the nearest thousand = 3000 (F)
- Clue 3 (Subtraction): "A HIGH SONIC WHISTLE DROVE THE BANDIT AWAY"7826 - 4396 = 3430 (A) · 9256 - 4924 = 4332 (B) · 11850 - 3699 = 8151 (T) · 12719 - 4858 = 7861 (S) · 4303 - 2659 = 1644 (V) · 10344 - 2890 = 7454 (G) · 6426 - 1685 = 4741 (O) · 10957 - 3441 = 7516 (D) · 4357 - 538 = 3819 (W) · 8104 - 2204 = 5900 (C) · 4623 - 504 = 4119 (I) · 6387 - 1276 = 5111 (N) · 8281 - 252 = 8029 (E) · 10513 - 4204 = 6309 (H) · 1373 - 259 = 1114 (R) · 4637 - 813 = 3824 (Y) · 4947 - 745 = 4202 (L)
- Clue 4 (Multiplication facts (1-12)): "FABRIC SCRAPS FROM A NEON BLUE SUIT WERE FOUND"10 × 7 = 70 (F) · 5 × 12 = 60 (C) · 1 × 2 = 2 (I) · 1 × 1 = 1 (B) · 4 × 11 = 44 (T) · 8 × 10 = 80 (E) · 2 × 2 = 4 (M) · 5 × 4 = 20 (P) · 7 × 6 = 42 (A) · 2 × 7 = 14 (N) · 2 × 12 = 24 (W) · 4 × 4 = 16 (R) · 5 × 9 = 45 (U) · 7 × 11 = 77 (S) · 9 × 9 = 81 (O) · 4 × 3 = 12 (L) · 5 × 8 = 40 (D)
- Clue 5 (Division facts (1-12)): surviving statement (box 12) → Michael Collins70 ÷ 7 = 10 · 36 ÷ 6 = 6 · 25 ÷ 5 = 5 · 64 ÷ 8 = 8 · 99 ÷ 9 = 11 · 27 ÷ 9 = 3 · 9 ÷ 9 = 1 · 4 ÷ 2 = 2 · 7 ÷ 1 = 7 · 20 ÷ 5 = 4 · 9 ÷ 1 = 9
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Rounding, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Starlight Station Sabotage — set in Lunar Outpost Alpha
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects