Math Mysteries
🚀 SpaceGrade 5Reading: grades 5-6RoundingFractions of a numberOrder of operationsMultiplicationDivision

The Nebula Station Sabotage

Someone has swiped the Hyper-Drive Core from Nebula Station Seven, leaving the entire base running on emergency solar sails! The culprit is one of twenty-four rookie astronauts. Detectives, we need to analyze the telemetry logs, decode the clues, and find the real Space Bandit before they warp out of the sector.

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameSpacesuit ClassThruster PackOxygen DialHelmet GlowSystem Vulnerability
Mark KellyCargo SuitSolar WingRight Hand GaugeNeon Green GlowSolar Flares
Kalpana ChawlaPilot SuitIon BoostRight Hand GaugeNeon Green GlowSpace Dust
Victor GloverCargo SuitWarp GlideLeft Hand GaugeNeon Green GlowEMP Waves
James LovellCargo SuitPlasma JetLeft Hand GaugeCosmic Blue GlowEMP Waves
Fred HaiseTech SuitSolar WingRight Hand GaugeCosmic Blue GlowSolar Flares
Alan ShepardTech SuitSolar WingRight Hand GaugeCrimson Red GlowSpace Dust
John GlennPilot SuitQuark DriveRight Hand GaugeCosmic Blue GlowSolar Flares
Neil ArmstrongTech SuitSolar WingRight Hand GaugeCosmic Blue GlowSpace Dust
Jack SwigertRanger SuitWarp GlideRight Hand GaugeCrimson Red GlowSpace Dust
Valentina TereshkovaScience SuitSolar WingRight Hand GaugeCosmic Blue GlowSolar Flares
Michael CollinsTech SuitQuark DriveRight Hand GaugeNeon Green GlowSpace Dust
Scott KellyRanger SuitIon BoostRight Hand GaugeCosmic Blue GlowSolar Flares
Christina KochTech SuitWarp GlideRight Hand GaugeCosmic Blue GlowSolar Flares
Yuri GagarinRanger SuitIon BoostRight Hand GaugeCosmic Blue GlowSpace Dust
Jessica MeirCargo SuitIon BoostRight Hand GaugeNeon Green GlowSpace Dust
Sally RidePilot SuitPlasma JetRight Hand GaugeCosmic Blue GlowEMP Waves
Guion BlufordTech SuitSolar WingRight Hand GaugeNeon Green GlowSolar Flares
Buzz AldrinPilot SuitIon BoostLeft Hand GaugeNeon Green GlowEMP Waves
Gene CernanPilot SuitWarp GlideRight Hand GaugeCosmic Blue GlowSpace Dust
Mae JemisonCargo SuitQuark DriveLeft Hand GaugeNeon Green GlowEMP Waves
Pete ConradRanger SuitIon BoostLeft Hand GaugeCosmic Blue GlowSolar Flares
Clue 1

Rounding

The dock radar registered a blurry ship speed. We must round this number to the nearest ten to clear up the sensor feed.

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
370
5000
90
9000
2300
30
230
4300
T
370
230
430
90
3000
30
430
T
370
900
3000
90
T
370
5000
90
50
900
2300
290
700
230
290
4300
110
90
Round 373 to the nearest tenT
Round 3,252 to the nearest thousandS
Round 53 to the nearest tenQ
Round 293 to the nearest tenR
Round 9,266 to the nearest thousandB
Round 4,272 to the nearest hundredI
Round 234 to the nearest tenD
Round 5,160 to the nearest thousandH
Round 723 to the nearest hundredK
Round 917 to the nearest hundredU
Round 111 to the nearest tenV
Round 29 to the nearest tenN
Round 431 to the nearest tenO
Round 86 to the nearest tenE
Round 2,293 to the nearest hundredA
0/15 letters found
Clue 2

Fractions of a number

The thief jammed the control console. To reboot it, we must calculate a specific fraction of the remaining backup batteries.

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
6
5
17
19
36
6
T
11
6
16
40
34
36
16
8
36
5
3
16
26
28
35
16
26
6
19
40
36
2/8 of 44 =T
1/10 of 170 =R
2/10 of 130 =S
5/6 of 6 =E
1/4 of 112 =F
2/3 of 51 =D
3/6 of 6 =W
1/2 of 16 =U
1/6 of 96 =A
2/4 of 80 =N
4/10 of 15 =H
2/10 of 180 =G
2/6 of 105 =L
1/5 of 95 =I
0/14 letters found
Clue 3

Order of operations

We found a locked data pad containing flight logs. Solve the multi step formula in the correct order to crack the 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
10
77
78
22
19
37
47
80
T
10
56
39
78
47
56
52
14
25
79
14
39
19
52
56
39
19
52
78
79
4 + 3 × 2 =T
60 + 6 × 3 =E
8 × 11 - 11 =H
10 × 4 - 15 =M
8 × 4 - 10 =B
6 × 11 - 10 =F
7 × 6 - 23 =A
4 + 5 × 2 =O
4 × 10 - 1 =L
9 × 12 - 29 =S
7 × 9 - 26 =N
11 + 9 × 4 =D
9 × 12 - 28 =I
9 × 9 - 29 =R
0/14 letters found
Clue 4

Multiplication facts (1-12)

The crew needs to count the emergency rations left in the storage bays. Multiply the crates by the packs inside each one.

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
7
10
15
48
W
7
48
81
25
15
99
50
81
2
120
72
10
35
120
25
W
7
48
132
132
28
10
15
81
10
40
10
7 × 1 =W
5 × 7 =G
6 × 12 =U
12 × 11 =T
8 × 6 =A
9 × 9 =C
4 × 7 =H
1 × 10 =E
10 × 4 =N
3 × 5 =S
5 × 10 =I
12 × 10 =L
11 × 9 =M
5 × 5 =O
2 × 1 =B
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

To keep the station steady, we must distribute the remaining fuel equally among the surviving thruster pods.

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
28 ÷ 7 = ?
55 ÷ 5 = ?
50 ÷ 10 = ?
60 ÷ 5 = ?
84 ÷ 12 = ?
9 ÷ 1 = ?
90 ÷ 9 = ?
6 ÷ 6 = ?
36 ÷ 12 = ?
72 ÷ 9 = ?
48 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain scrambled the radar array, then hid in the cargo pod.
2.The villain bypassed the airlock, then escaped in a scout ship.
3.The villain hacked the bridge console, then drifted past the orbital ring.
4.The villain scrambled the radar array, then drifted past the orbital ring.
5.The villain scrambled the radar array, then warped through an asteroid belt.
6.The villain bypassed the airlock, then drifted past the orbital ring.
7.The villain bypassed the airlock, then hid in the cargo pod.
8.The villain unlocked the hangar bay, then zipped away on a space walk.
9.The villain scrambled the radar array, then zipped away on a space walk.
10.The villain drained the power grid, then zipped away on a space walk.
11.The villain unlocked the hangar bay, then warped through an asteroid belt.
12.The villain hacked the bridge console, then hid in the cargo pod.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 5 math
Math topics
Rounding, Fractions of a number, Order of operations, Multiplication, Division
Reading level
grades 5-6
Theme
The Nebula Station Sabotage — set in Nebula Station Seven
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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