Math Crackers
⛏️ MinecraftGrade 6Reading: grades 5-6MultiplicationSkip countingMulti-step word problemsPercentagesDivision

The Obsidian Vault Heist

A mysterious griefer broke into the master diamond vault, disabled the spawn shields, and scattered rare server blocks across the realm. The Head Realm Architect needs your deduction skills to identify the suspect.

Suspects

Possible suspects

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

21 of 21 still in play
NamePrimary ToolEnchantmentStanceHelmet TypeBan Trigger
Zombie CleoNetherite PickaxeFeather FallingLeft Hand DominantLeather CapSplash Potion of Harming
Stampy CatDiamond SwordLoyaltyRight Hand DominantLeather CapMusic Disc Eleven
Grian RedstoneNetherite PickaxeFire AspectLeft Hand DominantLeather CapMusic Disc Eleven
Tango TekNetherite PickaxeFeather FallingRight Hand DominantTurtle ShellSplash Potion of Harming
Iskall EightyIron AxeSilk TouchRight Hand DominantLeather CapGolden Apple
Captain SparkGolden ShovelFeather FallingLeft Hand DominantNetherite HelmetSplash Potion of Harming
Gem InitTridentLoyaltyLeft Hand DominantLeather CapSplash Potion of Harming
Cub FanaticGolden ShovelFeather FallingLeft Hand DominantLeather CapSplash Potion of Harming
Alex CraftIron AxeFire AspectLeft Hand DominantNetherite HelmetSplash Potion of Harming
Docm SeventyIron AxeBlast ProtectionLeft Hand DominantNetherite HelmetSplash Potion of Harming
False SymmetryTridentSilk TouchLeft Hand DominantNetherite HelmetSplash Potion of Harming
Scar GoodtimeDiamond SwordFeather FallingLeft Hand DominantNetherite HelmetMusic Disc Eleven
Rendog BarkNetherite PickaxeSilk TouchRight Hand DominantNetherite HelmetSplash Potion of Harming
Bdouble ONetherite PickaxeFeather FallingRight Hand DominantLeather CapMusic Disc Eleven
Keralis EyesGolden ShovelFire AspectLeft Hand DominantTurtle ShellSplash Potion of Harming
Etho SlabIron AxeSilk TouchLeft Hand DominantTurtle ShellSplash Potion of Harming
Aphmau SunGolden ShovelBlast ProtectionLeft Hand DominantLeather CapSplash Potion of Harming
Mumbo JumboNetherite PickaxeFeather FallingRight Hand DominantLeather CapSplash Potion of Harming
Skelo KingIron AxeFeather FallingLeft Hand DominantNetherite HelmetSplash Potion of Harming
Xisuma VoidTridentSilk TouchRight Hand DominantNetherite HelmetGolden Apple
Steve BlockTridentSilk TouchLeft Hand DominantLeather CapSplash Potion of Harming
Clue 1

Multiplication facts (1-12)

The griefer placed stacks of obsidian blocks in grid formation near spawn. Calculating the total blocks reveals the first clue signal.

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
64
120
18
40
81
22
22
77
81
16
36
32
18
4
16
32
T
64
27
4
18
25
22
77
4
T
64
63
66
32
T
64
18
3
T
64
81
32
16
8 × 8 =T
11 × 2 =L
3 × 6 =E
3 × 9 =U
4 × 9 =D
7 × 11 =A
8 × 2 =N
4 × 8 =O
9 × 7 =P
4 × 10 =V
12 × 10 =H
2 × 2 =S
5 × 5 =B
1 × 3 =C
11 × 6 =R
9 × 9 =I
0/16 letters found
Clue 2

Skip counting

Redstone repeater torches pulse at set intervals down the dark tunnel. Counting each jump in the sequence uncovers a hidden server 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.

W
45
130
15
16
30
70
70
30
70
70
26
W
45
26
28
30
50
15
60
26
16
140
140
80
12
130
16
26
16
15
100
24
130
28
140
30
18
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80H
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120B
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16M
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80S
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70F
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20N
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32L
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28U
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150I
0/16 letters found
Clue 3

Multi-step word problems

To clear the trapped portal, players gathered ingredients, crafted potions, and traded with piglins. Working through the steps shows where the suspect fled.

Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.

Someonescaredthevillainoffwith
S
33
13
16
83
S
33
70
13
74
36
I
 
74
N
 
74
F
 
70
83
R
 
M
 
I
 
N
 
G
 
.
There were 301 golden apples in all. 37 golden apples were set aside. The rest were shared equally among 8 guild. How many golden apples did each get?S
Builder filled 7 boxes with 9 diamond ores each, then found 7 more diamond ores. How many diamond ores are there in all?H
Builder filled 5 boxes with 6 diamond ores each, then found 6 more diamond ores. How many diamond ores are there in all?T
There were 696 golden apples in all. 32 golden apples were set aside. The rest were shared equally among 8 guild. How many golden apples did each get?A
Builder filled 3 boxes with 2 redstone dust each, then found 7 more redstone dust. How many redstone dust are there in all?P
There were 105 emerald blocks in all. 25 emerald blocks were set aside. The rest were shared equally among 5 guild. How many emerald blocks did each get?L
Builder earned 7 emerald blocks in each of 6 rounds, plus 34 bonus emerald blocks. Then 2 emerald blocks were lost. How many emerald blocks are left?O
0/7 letters found
Clue 4

Percentages

The server terminal shows what percentage of emerald stores were raided from each village vault. Solving this pinpoints the griefer signature.

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
13
41
10
15
19
7
10
41
38
17
11
A
13
41
25
38
3
25
7
10
38
25
3
25
35
15
25
38
21
A
13
12
12
25
25
41
20% of 65 =A
10% of 30 =H
25% of 40 =I
60% of 35 =W
50% of 30 =M
25% of 68 =O
10% of 110 =F
20% of 95 =P
50% of 82 =N
10% of 250 =E
5% of 700 =L
5% of 760 =T
75% of 16 =S
5% of 140 =R
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

The admin split the remaining inventory chests equally among five server guards. Dividing the loot uncovers the final clue.

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
3 ÷ 1 = ?
45 ÷ 9 = ?
36 ÷ 9 = ?
48 ÷ 8 = ?
72 ÷ 8 = ?
14 ÷ 7 = ?
3 ÷ 3 = ?
120 ÷ 12 = ?
60 ÷ 5 = ?
77 ÷ 11 = ?
55 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain chopped the wooden supports, then placed lava everywhere.
2.The villain sliced the spawn gates, then placed lava everywhere.
3.The villain threw water buckets around, then summoned phantom swarms.
4.The villain mined through obsidian walls, then glided away with elytra.
5.The villain threw water buckets around, then gathered emerald blocks.
6.The villain sliced the spawn gates, then glided away with elytra.
7.The villain dug under the chest room, then set off TNT traps.
8.The villain dug under the chest room, then glided away with elytra.
9.The villain mined through obsidian walls, then set off TNT traps.
10.The villain sliced the spawn gates, then set off TNT traps.
11.The villain sliced the spawn gates, then summoned phantom swarms.
12.The villain dug under the chest room, then summoned phantom swarms.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 6 math
Math topics
Multiplication, Skip counting, Multi-step word problems, Percentages, Division
Reading level
grades 5-6
Theme
The Obsidian Vault Heist — set in The Overworld Realm
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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