⛏️ MinecraftGrade 7Reading: grades 7-9IntegersMulti-step word problemsPercentagesOrder of operationsMissing addends
The Beacon Grid Sabotage
Someone sabotaged the central Redstone beacon grid at the Crafting Guild Citadel and swapped the nether star for a fake block of dyed quartz. The Guild needs a sharp detective to solve the clues, examine the grid evidence, and uncover the culprit.
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 | Primary Tool | Offhand Gear | Combat Stance | Armor Trim Color | Block Hazard |
|---|---|---|---|---|---|
| PearlescentMoon | Golden Shovel | Totem of Undying | Right Handed | Copper Trim | Potion of Slowness |
| Xisuma | Redstone Wrench | Shield | Right Handed | Amethyst Trim | Potion of Slowness |
| Hypno | Diamond Pickaxe | Fire Charge | Right Handed | Copper Trim | Potion of Slowness |
| GoodTimesWithScar | Redstone Wrench | Totem of Undying | Left Handed | Amethyst Trim | Anvil Drop |
| ImpulseSV | Golden Shovel | Shield | Right Handed | Emerald Trim | Anvil Drop |
| FalseSymmetry | Redstone Wrench | Fireworks | Right Handed | Amethyst Trim | Anvil Drop |
| Smajor | Netherite Sword | Fire Charge | Right Handed | Amethyst Trim | Anvil Drop |
| Rendog | Diamond Pickaxe | Totem of Undying | Right Handed | Amethyst Trim | Splash Lava |
| Grian | Diamond Pickaxe | Fire Charge | Left Handed | Emerald Trim | Splash Lava |
| CaptainSparklez | Netherite Sword | Totem of Undying | Right Handed | Amethyst Trim | Anvil Drop |
| TangoTek | Golden Shovel | Fireworks | Right Handed | Amethyst Trim | Anvil Drop |
| Cubfan | Redstone Wrench | Totem of Undying | Right Handed | Amethyst Trim | Potion of Slowness |
| Docm77 | Diamond Pickaxe | Shield | Right Handed | Emerald Trim | Anvil Drop |
| LDShadowLady | Golden Shovel | Totem of Undying | Left Handed | Copper Trim | Anvil Drop |
| BDoubleO | Enchanted Bow | Ender Pearl | Right Handed | Amethyst Trim | Potion of Slowness |
| GeminiTay | Diamond Pickaxe | Fire Charge | Left Handed | Copper Trim | Potion of Slowness |
| Smallishbeans | Golden Shovel | Fireworks | Right Handed | Copper Trim | Potion of Slowness |
| EthosLab | Golden Shovel | Totem of Undying | Left Handed | Amethyst Trim | Potion of Slowness |
| Stressmonster | Redstone Wrench | Shield | Left Handed | Amethyst Trim | Anvil Drop |
| DanTDM | Diamond Pickaxe | Ender Pearl | Right Handed | Amethyst Trim | Anvil Drop |
| Stampy | Enchanted Bow | Totem of Undying | Left Handed | Copper Trim | Potion of Slowness |
Clue 1
Integers
To track the inventory movements across multiple storage chests in the vault, we must calculate the exact net quantity of items removed during the breach.
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
5
26
16
6
29
8
7
T
5
16
10
25
2
29
6
4
7
T
5
26
7
30
20
22
4
27
29
13
22
25
16
12
26
29
25
27
16
(-5) + 10 =T
(-5) + 9 =N
(-6) + 14 =B
(-4) + 20 =E
(-7) + 20 =F
(-11) + 13 =W
(-7) + 19 =C
25 - (-2) =G
7 - (-3) =U
(-1) + 23 =I
(-7) + 14 =O
26 - (-4) =L
(-7) + 27 =D
17 - (-12) =A
(-14) + 20 =S
(-5) + 31 =H
21 - (-4) =R
0/17 letters found
Clue 2
Multi-step word problems
Analyzing the change in Y coordinate levels between the underground cavern and the high beacon tower reveals the movement trail of the intruder.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
R
18
19
85
77
66
77
23
81
D
E
D
The master builder earned 3 obsidian blocks in each of 5 rounds, plus 11 bonus obsidian blocks. Then 8 obsidian blocks were lost. How many obsidian blocks are left?R
There were 519 ender pearls in all. 9 ender pearls were set aside. The rest were shared equally among 6 the Redstone Corps. How many ender pearls did each get?G
The master builder earned 7 diamonds in each of 3 rounds, plus 12 bonus diamonds. Then 10 diamonds were lost. How many diamonds are left?A
The master builder collected 129 diamonds in the morning and 114 diamonds in the afternoon, then split them equally among 3 the Redstone Corps. How many diamonds did each get?N
The master builder earned 6 glowstone dust in each of 6 rounds, plus 43 bonus glowstone dust. Then 2 glowstone dust were lost. How many glowstone dust are left?H
There were 223 diamonds in all. 1 the Redstone Corps used 25 diamonds each. The other 3 the Redstone Corps shared the rest equally. How many diamonds did each of the other the Redstone Corps get?T
The master builder earned 5 glowstone dust in each of 2 rounds, plus 17 bonus glowstone dust. Then 8 glowstone dust were lost. How many glowstone dust are left?I
0/7 letters found
Clue 3
Percentages
We surveyed the remaining durability percentages on the armor stands left near the crime scene to determine which gear set sustained damage.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
D
3
11
45
11
55
D
3
11
21
17
D
3
21
4
16
16
11
D
3
6
55
6
55
39
43
41
45
21
4
14
6
51
4
39
11
25% of 12 =D
5% of 900 =F
10% of 160 =P
75% of 68 =B
5% of 220 =E
10% of 410 =L
5% of 280 =M
25% of 172 =I
10% of 550 =N
20% of 195 =V
5% of 420 =R
50% of 12 =A
25% of 16 =O
10% of 170 =S
0/14 letters found
Clue 4
Order of operations
Decoding the redstone tick sequence required calculating the order of operations for the complex repeater clock that opened the vault doors.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
P
32
13
51
P
32
17
74
95
13
64
39
68
63
64
17
74
78
39
107
35
39
66
74
31
74
63
119
107
35
20 + 3 × 4 =P
47 + 2 × 2 =R
11 × 11 - 14 =O
9 × 12 - 30 =F
7 × 11 - 3 =E
54 + 2 × 7 =W
80 + 3 × 5 =D
29 + 3 × 2 =N
84 + 5 × 7 =C
7 + 2 × 3 =U
4 × 6 - 7 =L
32 + 8 × 4 =S
47 + 4 × 4 =A
6 × 8 - 9 =T
9 × 9 - 15 =H
10 × 6 - 29 =B
0/16 letters found
Clue 5
Missing addends — the last clue
Calculating the missing block counts needed to restore the damaged defensive wall pinpointed which section the intruder broke through.
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
1 + ___ = 2
37 + ___ = 49
22 + ___ = 29
15 + ___ = 24
33 + ___ = 37
32 + ___ = 34
20 + ___ = 23
13 + ___ = 18
7 + ___ = 18
2 + ___ = 8
19 + ___ = 27
Step 2 — cross out the sentence with each answer
1.The villain dismantled the redstone wiring, then teleported using an ender pearl.
2.The villain pushed through the iron doors, then fled without a fire charge.
3.The villain overloaded the power repeaters, then vanished holding a totem.
4.The villain dug through the obsidian floor, then teleported using an ender pearl.
5.The villain overloaded the power repeaters, then fled without a fire charge.
6.The villain smashed the glass housing, then vanished holding a totem.
7.The villain overloaded the power repeaters, then boosted away using fireworks.
8.The villain smashed the glass housing, then boosted away using fireworks.
9.The villain smashed the glass housing, then fled without a fire charge.
10.The villain pushed through the iron doors, then boosted away using fireworks.
11.The villain smashed the glass housing, then teleported using an ender pearl.
12.The villain dug through the obsidian floor, then vanished holding a totem.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Beacon Grid Sabotage
Culprit: TangoTek (Golden Shovel · Fireworks · Right Handed · Amethyst Trim · Anvil Drop)
- Clue 1 (Integers): "THE SABOTEUR WAS NOT HOLDING A FIRE CHARGE"(-5) + 10 = 5 (T) · (-5) + 9 = 4 (N) · (-6) + 14 = 8 (B) · (-4) + 20 = 16 (E) · (-7) + 20 = 13 (F) · (-11) + 13 = 2 (W) · (-7) + 19 = 12 (C) · 25 - (-2) = 27 (G) · 7 - (-3) = 10 (U) · (-1) + 23 = 22 (I) · (-7) + 14 = 7 (O) · 26 - (-4) = 30 (L) · (-7) + 27 = 20 (D) · 17 - (-12) = 29 (A) · (-14) + 20 = 6 (S) · (-5) + 31 = 26 (H) · 21 - (-4) = 25 (R)
- Clue 2 (Multi-step word problems): "RIGHT HANDED"The master builder earned 3 obsidian blocks in each of 5 rounds, plus 11 bonus obsidian blocks. Then 8 obsidian blocks were lost. How many obsidian blocks are left? = 18 (R) · There were 519 ender pearls in all. 9 ender pearls were set aside. The rest were shared equally among 6 the Redstone Corps. How many ender pearls did each get? = 85 (G) · The master builder earned 7 diamonds in each of 3 rounds, plus 12 bonus diamonds. Then 10 diamonds were lost. How many diamonds are left? = 23 (A) · The master builder collected 129 diamonds in the morning and 114 diamonds in the afternoon, then split them equally among 3 the Redstone Corps. How many diamonds did each get? = 81 (N) · The master builder earned 6 glowstone dust in each of 6 rounds, plus 43 bonus glowstone dust. Then 2 glowstone dust were lost. How many glowstone dust are left? = 77 (H) · There were 223 diamonds in all. 1 the Redstone Corps used 25 diamonds each. The other 3 the Redstone Corps shared the rest equally. How many diamonds did each of the other the Redstone Corps get? = 66 (T) · The master builder earned 5 glowstone dust in each of 2 rounds, plus 17 bonus glowstone dust. Then 8 glowstone dust were lost. How many glowstone dust are left? = 19 (I)
- Clue 3 (Percentages): "DEFENDERS DROPPED AN ANVIL FROM ABOVE"25% of 12 = 3 (D) · 5% of 900 = 45 (F) · 10% of 160 = 16 (P) · 75% of 68 = 51 (B) · 5% of 220 = 11 (E) · 10% of 410 = 41 (L) · 5% of 280 = 14 (M) · 25% of 172 = 43 (I) · 10% of 550 = 55 (N) · 20% of 195 = 39 (V) · 5% of 420 = 21 (R) · 50% of 12 = 6 (A) · 25% of 16 = 4 (O) · 10% of 170 = 17 (S)
- Clue 4 (Order of operations): "PURPLE DUST WAS LEFT ON THE BEACON"20 + 3 × 4 = 32 (P) · 47 + 2 × 2 = 51 (R) · 11 × 11 - 14 = 107 (O) · 9 × 12 - 30 = 78 (F) · 7 × 11 - 3 = 74 (E) · 54 + 2 × 7 = 68 (W) · 80 + 3 × 5 = 95 (D) · 29 + 3 × 2 = 35 (N) · 84 + 5 × 7 = 119 (C) · 7 + 2 × 3 = 13 (U) · 4 × 6 - 7 = 17 (L) · 32 + 8 × 4 = 64 (S) · 47 + 4 × 4 = 63 (A) · 6 × 8 - 9 = 39 (T) · 9 × 9 - 15 = 66 (H) · 10 × 6 - 29 = 31 (B)
- Clue 5 (Missing addends): surviving statement (box 10) → TangoTek1 + ___ = 2 = 1 · 37 + ___ = 49 = 12 · 22 + ___ = 29 = 7 · 15 + ___ = 24 = 9 · 33 + ___ = 37 = 4 · 32 + ___ = 34 = 2 · 20 + ___ = 23 = 3 · 13 + ___ = 18 = 5 · 7 + ___ = 18 = 11 · 2 + ___ = 8 = 6 · 19 + ___ = 27 = 8
About this mystery
- Grade level
- Grade 7 math
- Math topics
- Integers, Multi-step word problems, Percentages, Order of operations, Missing addends
- Reading level
- grades 7-9
- Theme
- The Beacon Grid Sabotage — set in Crafting Guild Citadel
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects