Math Crackers
🚀 Haunted space craft and horrGrade 5Reading: grades 5-6Place valueAdditionSubtractionMultiplicationDivision

The Phantom Bovine of Barnstar Nine

A spectral mutant cow is haunting the darkened decks of Barnstar Nine and spooking the astronaut crew. Decode the evidence logs to track down the galactic ghost!

Suspects

Possible suspects

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

21 of 21 still in play
NameGhostly AbilityAlien GearHoof PreferenceSpectral FurStation Trap
Pilot CloverEcho Spooky Moo SoundsMagnetic Laser CollarRight HoofedGhostly WhiteFresh Grass
Commander DaisyTeleport Behind DoorsAnti Gravity SaddleRight HoofedGhostly WhiteFresh Grass
Agent GuernseyTeleport Behind DoorsMagnetic Laser CollarRight HoofedMidnight BlackFresh Grass
Officer BluebellLevitate In Zero GravityStarlight JetpackLeft HoofedGhostly WhiteHeavy Gravity
Navigator OtisPhase Through BulkheadsMagnetic Laser CollarLeft HoofedMidnight BlackHeavy Gravity
Specialist MeadowPhase Through BulkheadsGlowing Plasma BellRight HoofedMidnight BlackFresh Grass
Scout BrambleTeleport Behind DoorsStarlight JetpackLeft HoofedMidnight BlackHeavy Gravity
Lieutenant FerdinandLevitate In Zero GravityCybernetic Horn RingLeft HoofedGhostly WhiteFresh Grass
Cadet ClarabellePhase Through BulkheadsGlowing Plasma BellRight HoofedGhostly WhiteFresh Grass
Cadet DexterLevitate In Zero GravityMagnetic Laser CollarRight HoofedCosmic PurpleFresh Grass
Pilot GallowayLevitate In Zero GravityMagnetic Laser CollarRight HoofedGhostly WhiteFresh Grass
Warden BossyEcho Spooky Moo SoundsStarlight JetpackRight HoofedGhostly WhiteFresh Grass
Chief JerseyEcho Spooky Moo SoundsStarlight JetpackRight HoofedMidnight BlackHeavy Gravity
Captain BessieEcho Spooky Moo SoundsStarlight JetpackRight HoofedMidnight BlackFresh Grass
Major ButtercupTeleport Behind DoorsMagnetic Laser CollarLeft HoofedGhostly WhiteHeavy Gravity
Marshal HolsteinEcho Spooky Moo SoundsCybernetic Horn RingLeft HoofedGhostly WhiteHeavy Gravity
Gunner NormanLevitate In Zero GravityStarlight JetpackRight HoofedMidnight BlackHeavy Gravity
Agent DevonPhase Through BulkheadsGlowing Plasma BellRight HoofedGhostly WhiteHeavy Gravity
Trooper HerefordEcho Spooky Moo SoundsMagnetic Laser CollarRight HoofedMidnight BlackHeavy Gravity
Officer AngusLevitate In Zero GravityAnti Gravity SaddleRight HoofedCosmic PurpleHeavy Gravity
Commander AstroCreate Cosmic FogCybernetic Horn RingLeft HoofedCosmic PurpleFresh Grass
Clue 1

Place value

The station scanner picks up a scrambled numeric code from the ghost cow. Look at the digit in the tens place to decode the first observation log.

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
700
60
10
60
90
9000
T
5000
600
8000
60
9000
400
8000
T
5000
50
60
90
4000
90
400
90
400
T
5000
2000
7000
4000
90
500
2000
T
5000
300
9000
90
600
600
100
60
What is the value of the 5 in 45,341?T
What is the value of the 7 in 247,303?G
What is the value of the 5 in 424,571?V
What is the value of the 6 in 83,164?E
What is the value of the 8 in 68,554?O
What is the value of the 9 in 559,658?S
What is the value of the 1 in 93,150?L
What is the value of the 9 in 31,497?A
What is the value of the 4 in 34,236?R
What is the value of the 2 in 32,881?I
What is the value of the 7 in 21,755?H
What is the value of the 6 in 82,619?D
What is the value of the 1 in 854,815?B
What is the value of the 3 in 650,366?Y
What is the value of the 4 in 785,411?N
What is the value of the 5 in 607,353?W
0/16 letters found
Clue 2

Addition

To count total thermal sightings across both station decks, the security officer adds the sensor counts together.

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
7092
7052
4049
7349
5901
4049
2614
T
7092
5772
5901
4049
4195
T
7092
5772
7349
6744
5809
T
7092
4195
5901
5809
2491
7052
T
7092
7052
7075
7075
7841
5809
4658
T
7092
7052
4049
7052
2614
T
7092
7349
7052
2172 + 4920 =T
3182 + 3870 =H
2888 + 2884 =U
5420 + 2421 =F
2763 + 1895 =N
2848 + 3053 =R
3315 + 2494 =I
1579 + 1035 =A
1809 + 2240 =E
1376 + 1115 =G
2591 + 4153 =K
2289 + 5060 =C
3610 + 3465 =O
1597 + 2598 =S
0/14 letters found
Clue 3

Subtraction

The engineering crew measures how much power dropped after the specter floated through the main circuit breaker.

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
3015
6238
4205
4265
7393
4356
3629
1618
4205
7356
4731
1430
T
3015
6937
4731
8978
8978
4205
4315
4265
2701
4551
6937
4205
1430
6238
8822
6937
4731
1430
1430
6601 - 3586 =T
12149 - 4793 =W
10439 - 3046 =O
7638 - 3087 =F
9522 - 3284 =H
6878 - 2147 =A
3087 - 1469 =N
12618 - 3640 =P
7507 - 3192 =D
6617 - 2988 =I
6860 - 2595 =B
2124 - 694 =S
3399 - 698 =Y
5545 - 1340 =E
11208 - 2386 =G
4800 - 444 =V
9845 - 2908 =R
0/17 letters found
Clue 4

Multiplication facts (1-12)

The hydroponic farm deck stores space hay in identical equal rows. Multiply the pods per row to unlock the camera file.

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
20
32
4
28
55
1
S
20
8
9
72
15
8
S
20
32
56
90
12
15
6
32
77
9
108
4
12
77
4
77
8
55
32
15
77
1
8
8
4
2 × 10 =S
7 × 8 =L
9 × 8 =G
9 × 12 =U
4 × 1 =R
6 × 2 =W
11 × 5 =N
4 × 8 =T
11 × 7 =E
8 × 1 =O
5 × 3 =H
3 × 2 =I
7 × 4 =A
1 × 1 =D
9 × 10 =Y
3 × 3 =F
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

The astro patrol team splits their remaining flashlight batteries equally among all search squads to enter the dark cargo bay.

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
110 ÷ 11 = ?
32 ÷ 8 = ?
72 ÷ 12 = ?
90 ÷ 10 = ?
12 ÷ 6 = ?
49 ÷ 7 = ?
88 ÷ 11 = ?
60 ÷ 12 = ?
84 ÷ 7 = ?
36 ÷ 12 = ?
132 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain levitates in zero gravity, then activates its magnetic laser collar.
2.The villain teleports behind doors, then rings its glowing plasma bell.
3.The villain echoes spooky moo sounds, then rings its glowing plasma bell.
4.The villain echoes spooky moo sounds, then activates its magnetic laser collar.
5.The villain creates cosmic fog, then rings its glowing plasma bell.
6.The villain phases through bulkheads, then rings its glowing plasma bell.
7.The villain levitates in zero gravity, then fires its starlight jetpack.
8.The villain teleports behind doors, then activates its magnetic laser collar.
9.The villain echoes spooky moo sounds, then adjusts its anti gravity saddle.
10.The villain echoes spooky moo sounds, then fires its starlight jetpack.
11.The villain creates cosmic fog, then charges its cybernetic horn ring.
12.The villain echoes spooky moo sounds, then charges its cybernetic horn ring.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 5 math
Math topics
Place value, Addition, Subtraction, Multiplication, Division
Reading level
grades 5-6
Theme
The Phantom Bovine of Barnstar Nine — set in The abandoned orbital livestock station Barnstar Nine
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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