🚀 SpaceGrade 4Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
The Great Space Station Scramble
Someone has scrambled the orbit coordinates of the space station! The Lead Astronomer is stuck in the telescope pod and cannot get down. We must find the Cosmic Prankster before the power runs out!
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 | Astronaut Suit Upgrade | Thruster Pack | Oxygen Meter Placement | Helmet Glow Color | System Vulnerability |
|---|---|---|---|---|---|
| Scott Kelly | Gravity Boots | Ion Engine | Right Arm Screen | Bright Orange Glow | Loud Whistle |
| Michael Collins | Gravity Boots | Turbo Booster | Left Arm Screen | Electric Blue Glow | Bright Flashlight |
| John Glenn | Force Shield | Ion Engine | Left Arm Screen | Electric Blue Glow | Bright Flashlight |
| Buzz Aldrin | Gravity Boots | Warp Drive | Right Arm Screen | Electric Blue Glow | Bright Flashlight |
| Peggy Whitson | Force Shield | Warp Drive | Left Arm Screen | Bright Orange Glow | Shiny Magnet |
| Yuri Gagarin | Laser Grapple | Quantum Leap | Right Arm Screen | Bright Orange Glow | Shiny Magnet |
| Jessica Meir | Force Shield | Quantum Leap | Left Arm Screen | Bright Orange Glow | Loud Whistle |
| Mae Jemison | Laser Grapple | Ion Engine | Right Arm Screen | Neon Green Glow | Loud Whistle |
| Chris Hadfield | Gravity Boots | Turbo Booster | Right Arm Screen | Neon Green Glow | Bright Flashlight |
| Leland Melvin | Gravity Boots | Solar Sail | Right Arm Screen | Electric Blue Glow | Bright Flashlight |
| Mark Kelly | Plasma Torch | Ion Engine | Left Arm Screen | Bright Orange Glow | Bright Flashlight |
| Neil Armstrong | Magnetic Gloves | Ion Engine | Right Arm Screen | Electric Blue Glow | Bright Flashlight |
| Eileen Collins | Force Shield | Turbo Booster | Right Arm Screen | Electric Blue Glow | Loud Whistle |
| Kalpana Chawla | Gravity Boots | Warp Drive | Right Arm Screen | Electric Blue Glow | Loud Whistle |
| Guy Bluford | Gravity Boots | Solar Sail | Left Arm Screen | Bright Orange Glow | Bright Flashlight |
| Kathy Sullivan | Plasma Torch | Warp Drive | Right Arm Screen | Electric Blue Glow | Bright Flashlight |
| Christina Koch | Gravity Boots | Solar Sail | Right Arm Screen | Electric Blue Glow | Shiny Magnet |
| Tim Peake | Magnetic Gloves | Quantum Leap | Right Arm Screen | Neon Green Glow | Bright Flashlight |
| Sunita Williams | Gravity Boots | Solar Sail | Right Arm Screen | Bright Orange Glow | Bright Flashlight |
| Sally Ride | Magnetic Gloves | Turbo Booster | Left Arm Screen | Electric Blue Glow | Shiny Magnet |
| Valentina Tereshkova | Plasma Torch | Quantum Leap | Right Arm Screen | Electric Blue Glow | Bright Flashlight |
Clue 1
Rounding
The radar screen is dusty. It only displays rounded numbers for the distance to the runaway spaceship.
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
5000
3000
130
30
290
30
700
130
170
T
5000
2300
9000
130
30
7000
9000
T
5000
290
30
130
50
290
500
7000
T
5000
290
300
230
130
500
700
Round 4,868 to the nearest thousandT
Round 54 to the nearest tenQ
Round 171 to the nearest tenC
Round 7,171 to the nearest thousandN
Round 265 to the nearest hundredM
Round 8,632 to the nearest thousandO
Round 2,651 to the nearest thousandH
Round 747 to the nearest hundredP
Round 131 to the nearest tenE
Round 290 to the nearest tenU
Round 2,276 to the nearest hundredD
Round 230 to the nearest tenL
Round 30 to the nearest tenS
Round 527 to the nearest hundredA
0/14 letters found
Clue 2
Addition
To unlock the computer door, we must add up the total weight of the giant solar panels.
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
3648
6672
3752
6721
9553
7126
9279
2609
2796
T
3648
9810
9810
6721
2609
3752
3752
6274
2796
9810
2492
6274
T
3648
6672
3752
2609
2796
4782
6672
T
3648
2810
2609
5432
2047 + 1601 =T
1151 + 1341 =O
2761 + 3513 =N
4691 + 4862 =U
1616 + 993 =R
4444 + 5366 =S
2208 + 1544 =E
1927 + 883 =A
3040 + 3632 =H
1729 + 1067 =I
4813 + 4466 =P
2296 + 4425 =C
1824 + 2958 =G
3138 + 2294 =M
4298 + 2828 =L
0/15 letters found
Clue 3
Subtraction
We need to subtract the leaked oxygen levels to find out how much air is left in the room.
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
6547
3784
3606
7701
4242
2853
2853
6098
4242
3721
6143
3606
6098
8699
3606
3116
6098
7715
8699
4242
6102
3784
T
6547
6143
2853
6098
3959
3784
2853
4242
6102
3784
T
6547
9298 - 2751 =T
11948 - 4233 =B
8674 - 4953 =N
7078 - 3962 =D
7422 - 4569 =L
9357 - 658 =R
7942 - 4158 =H
4198 - 239 =S
10823 - 3122 =V
10315 - 4217 =A
7127 - 3521 =E
8830 - 2687 =F
8847 - 4605 =I
8079 - 1977 =G
0/14 letters found
Clue 4
Multiplication facts (1-12)
The computer needs to map the asteroid belt, which has equal rows of spinning space crystals.
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
7
64
144
6
144
45
56
100
5
45
14
6
44
144
20
6
15
84
6
5
56
44
63
56
30
144
A
7
100
144
A
7
1 × 7 =A
3 × 5 =O
7 × 2 =B
6 × 5 =H
1 × 5 =I
9 × 5 =C
7 × 9 =P
8 × 7 =T
12 × 12 =E
4 × 11 =U
2 × 3 =L
5 × 4 =G
10 × 10 =R
12 × 7 =W
8 × 8 =N
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
We have to split the remaining energy cells equally among the backup thrusters to reboot the grid.
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
21 ÷ 3 = ?
45 ÷ 5 = ?
60 ÷ 6 = ?
33 ÷ 11 = ?
16 ÷ 4 = ?
25 ÷ 5 = ?
32 ÷ 4 = ?
66 ÷ 11 = ?
48 ÷ 4 = ?
9 ÷ 9 = ?
2 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain swings using a laser grapple, then zooms off with a turbo booster.
2.The villain stomps by with gravity boots, then zips by with an ion engine.
3.The villain blocks the doorway with a force shield, then zips by with an ion engine.
4.The villain swings using a laser grapple, then zips by with an ion engine.
5.The villain swings using a laser grapple, then glides away on a solar sail.
6.The villain cuts the locks with a plasma torch, then zips by with an ion engine.
7.The villain climbs walls with magnetic gloves, then zips by with an ion engine.
8.The villain cuts the locks with a plasma torch, then glides away on a solar sail.
9.The villain stomps by with gravity boots, then blasts through a warp drive.
10.The villain cuts the locks with a plasma torch, then blasts through a warp drive.
11.The villain stomps by with gravity boots, then glides away on a solar sail.
12.The villain swings using a laser grapple, then disappears in a quantum leap.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Space Station Scramble
Culprit: Leland Melvin (Gravity Boots · Solar Sail · Right Arm Screen · Electric Blue Glow · Bright Flashlight)
- Clue 1 (Rounding): "THE SUSPECT DOES NOT USE QUANTUM LEAP"Round 4,868 to the nearest thousand = 5000 (T) · Round 54 to the nearest ten = 50 (Q) · Round 171 to the nearest ten = 170 (C) · Round 7,171 to the nearest thousand = 7000 (N) · Round 265 to the nearest hundred = 300 (M) · Round 8,632 to the nearest thousand = 9000 (O) · Round 2,651 to the nearest thousand = 3000 (H) · Round 747 to the nearest hundred = 700 (P) · Round 131 to the nearest ten = 130 (E) · Round 290 to the nearest ten = 290 (U) · Round 2,276 to the nearest hundred = 2300 (D) · Round 230 to the nearest ten = 230 (L) · Round 30 to the nearest ten = 30 (S) · Round 527 to the nearest hundred = 500 (A)
- Clue 2 (Addition): "THE CULPRITS SCREEN IS ON THE RIGHT ARM"2047 + 1601 = 3648 (T) · 1151 + 1341 = 2492 (O) · 2761 + 3513 = 6274 (N) · 4691 + 4862 = 9553 (U) · 1616 + 993 = 2609 (R) · 4444 + 5366 = 9810 (S) · 2208 + 1544 = 3752 (E) · 1927 + 883 = 2810 (A) · 3040 + 3632 = 6672 (H) · 1729 + 1067 = 2796 (I) · 4813 + 4466 = 9279 (P) · 2296 + 4425 = 6721 (C) · 1824 + 2958 = 4782 (G) · 3138 + 2294 = 5432 (M) · 4298 + 2828 = 7126 (L)
- Clue 3 (Subtraction): "THE VILLAIN FEARED A BRIGHT FLASHLIGHT"9298 - 2751 = 6547 (T) · 11948 - 4233 = 7715 (B) · 8674 - 4953 = 3721 (N) · 7078 - 3962 = 3116 (D) · 7422 - 4569 = 2853 (L) · 9357 - 658 = 8699 (R) · 7942 - 4158 = 3784 (H) · 4198 - 239 = 3959 (S) · 10823 - 3122 = 7701 (V) · 10315 - 4217 = 6098 (A) · 7127 - 3521 = 3606 (E) · 8830 - 2687 = 6143 (F) · 8847 - 4605 = 4242 (I) · 8079 - 1977 = 6102 (G)
- Clue 4 (Multiplication facts (1-12)): "AN ELECTRIC BLUE GLOW LIT UP THE AREA"1 × 7 = 7 (A) · 3 × 5 = 15 (O) · 7 × 2 = 14 (B) · 6 × 5 = 30 (H) · 1 × 5 = 5 (I) · 9 × 5 = 45 (C) · 7 × 9 = 63 (P) · 8 × 7 = 56 (T) · 12 × 12 = 144 (E) · 4 × 11 = 44 (U) · 2 × 3 = 6 (L) · 5 × 4 = 20 (G) · 10 × 10 = 100 (R) · 12 × 7 = 84 (W) · 8 × 8 = 64 (N)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Leland Melvin21 ÷ 3 = 7 · 45 ÷ 5 = 9 · 60 ÷ 6 = 10 · 33 ÷ 11 = 3 · 16 ÷ 4 = 4 · 25 ÷ 5 = 5 · 32 ÷ 4 = 8 · 66 ÷ 11 = 6 · 48 ÷ 4 = 12 · 9 ÷ 9 = 1 · 2 ÷ 1 = 2
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Great Space Station Scramble — set in The Zero-G Space Station Alpha
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects