⛏️ MinecraftGrade 4Reading: grades 3-4MultiplicationBar modelsWord problemsRoundingDivision
The Mystery of the Griefed Fortress
Someone destroyed the Great Block Citadel right before the annual Crafting Contest! Work with Master Builder Sam to solve the math clues and uncover which suspect griefed the citadel.
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 | Potion Gear | Mining Hand | Headwear | Scare Factor |
|---|---|---|---|---|---|
| ZombieZack | Diamond Pick | Totem of Undying | Right Handed | Ender Helmet | Splash Potion |
| BlockyBob | Nether Star | Swiftness Potion | Right Handed | Creeperskin Cap | Splash Potion |
| BuilderBen | Nether Star | Night Vision | Right Handed | Ender Helmet | Splash Potion |
| Steve | Elytra Wings | Totem of Undying | Left Handed | Ender Helmet | Splash Potion |
| Stampy | Nether Star | Fire Resistance | Right Handed | Ender Helmet | Water Bucket |
| Alex | Elytra Wings | Night Vision | Right Handed | Ender Helmet | Loud Bell |
| CobbleSam | Elytra Wings | Night Vision | Right Handed | Creeperskin Cap | Water Bucket |
| RedstoneRita | Nether Star | Totem of Undying | Right Handed | Ender Helmet | Loud Bell |
| PixelPete | Elytra Wings | Turtle Helmet | Right Handed | Pumpkin Mask | Loud Bell |
| CreeperChris | Redstone Torch | Night Vision | Right Handed | Creeperskin Cap | Water Bucket |
| Aphmau | Golden Apple | Swiftness Potion | Right Handed | Creeperskin Cap | Splash Potion |
| MinerMike | Diamond Pick | Totem of Undying | Right Handed | Creeperskin Cap | Water Bucket |
| Grian | Redstone Torch | Swiftness Potion | Left Handed | Creeperskin Cap | Loud Bell |
| DiamondDaisy | Nether Star | Turtle Helmet | Right Handed | Ender Helmet | Splash Potion |
| LavaLucy | Diamond Pick | Turtle Helmet | Right Handed | Creeperskin Cap | Splash Potion |
| Mumbo | Golden Apple | Swiftness Potion | Left Handed | Pumpkin Mask | Water Bucket |
| VoxelViolet | Redstone Torch | Totem of Undying | Left Handed | Creeperskin Cap | Splash Potion |
| CaptainSparklez | Golden Apple | Swiftness Potion | Right Handed | Pumpkin Mask | Water Bucket |
| EnderEmma | Golden Apple | Turtle Helmet | Right Handed | Creeperskin Cap | Water Bucket |
| CraftyClaire | Diamond Pick | Turtle Helmet | Right Handed | Ender Helmet | Splash Potion |
| GravelGreg | Redstone Torch | Swiftness Potion | Right Handed | Ender Helmet | Splash Potion |
Clue 1
Multiplication facts (1-12)
We found neat rows of iron blocks dropped near the damaged wall. Multiply the rows to decode the first clue.
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
70
132
48
88
20
22
22
45
20
36
99
63
48
2
36
63
T
70
25
2
48
36
20
54
132
T
70
88
20
2
20
63
36
10 × 7 =T
11 × 12 =H
2 × 11 =L
9 × 5 =A
5 × 5 =U
9 × 6 =G
12 × 3 =N
1 × 2 =S
8 × 11 =V
8 × 6 =E
5 × 4 =I
9 × 11 =D
9 × 7 =O
0/13 letters found
Clue 2
Bar model word problems
The detective drew bar models to compare two long lines of redstone dust found on the path.
Draw a bar model to solve each word problem. Its answer reveals a letter — write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
R
8
130
142
118
124
118
15
111
D
E
D
Pixel Builder has 96 iron ingots, packed 12 to a bag. How many bags can be filled?
draw a bar model
Answer:→R
One group collected 51 iron ingots and another group collected 67 iron ingots. How many iron ingots in all?
draw a bar model
Answer:→H
Pixel Builder used 1/2 of the golden carrots on the first day. The other 62 golden carrots were used the next day. How many golden carrots were there in all?
draw a bar model
Answer:→T
Pixel Builder has 5 times as many diamonds as a teammate. The teammate has 3 diamonds. How many diamonds does Pixel Builder have?
draw a bar model
Answer:→A
Pixel Builder used 2/5 of the iron ingots on the first day. The other 78 iron ingots were used the next day. How many iron ingots were there in all?
draw a bar model
Answer:→I
There were 164 redstone dust in all. 22 redstone dust were used. How many redstone dust are left?
draw a bar model
Answer:→G
The red team has 133 redstone dust and the blue team has 22 redstone dust. How many more redstone dust does the red team have?
draw a bar model
Answer:→N
0/7 letters found
Clue 3
Word problems
The town merchant lost craft supplies during the raid. Solve these word problems to figure out what was taken.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
S
61
12
40
60
S
61
73
12
39
65
I
39
N
There were 93 redstone dust. 32 were used up. How many redstone dust are left?S
Pixel Builder found 12 diamonds yesterday and 28 more today. How many diamonds in all?L
Pixel Builder found 2 iron ingots yesterday and 10 more today. How many iron ingots in all?P
Pixel Builder found 38 golden carrots yesterday and 35 more today. How many golden carrots in all?H
There were 68 golden carrots. 29 were used up. How many golden carrots are left?O
Pixel Builder lined up 10 rows of 6 diamonds. How many diamonds in all?A
There were 96 golden carrots. 31 were used up. How many golden carrots are left?T
0/7 letters found
Clue 4
Rounding
The server minimap only displays player distances rounded to the nearest ten blocks.
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
2300
500
170
1100
900
230
90
20
70
900
200
70
370
500
500
230
90
500
200
1300
500
370
7000
500
3700
20
3700
3700
1300
500
110
50
3700
500
Round 2,266 to the nearest hundredW
Round 456 to the nearest hundredE
Round 158 to the nearest hundredR
Round 17 to the nearest tenA
Round 231 to the nearest tenN
Round 1,279 to the nearest hundredH
Round 53 to the nearest tenI
Round 6,895 to the nearest thousandM
Round 66 to the nearest tenP
Round 371 to the nearest tenL
Round 1,098 to the nearest hundredO
Round 107 to the nearest tenS
Round 882 to the nearest hundredU
Round 3,675 to the nearest hundredT
Round 88 to the nearest tenD
Round 168 to the nearest tenF
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
We gathered all the recovered chest loot and divided it into equal piles to decode 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 ÷ 3 = ?
12 ÷ 3 = ?
14 ÷ 2 = ?
12 ÷ 6 = ?
99 ÷ 11 = ?
60 ÷ 10 = ?
60 ÷ 12 = ?
12 ÷ 1 = ?
132 ÷ 12 = ?
110 ÷ 11 = ?
56 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain swung a diamond pick, then donned a turtle helmet.
2.The villain placed a redstone torch, then turned on night vision.
3.The villain swung a diamond pick, then held a totem of undying.
4.The villain activated a nether star, then donned a turtle helmet.
5.The villain swung a diamond pick, then turned on night vision.
6.The villain glided with elytra wings, then donned a turtle helmet.
7.The villain placed a redstone torch, then drank swiftness potion.
8.The villain activated a nether star, then turned on night vision.
9.The villain activated a nether star, then applied fire resistance.
10.The villain activated a nether star, then drank swiftness potion.
11.The villain placed a redstone torch, then applied fire resistance.
12.The villain ate a golden apple, then held a totem of undying.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Griefed Fortress
Culprit: ZombieZack (Diamond Pick · Totem of Undying · Right Handed · Ender Helmet · Splash Potion)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT USE NIGHT VISION"10 × 7 = 70 (T) · 11 × 12 = 132 (H) · 2 × 11 = 22 (L) · 9 × 5 = 45 (A) · 5 × 5 = 25 (U) · 9 × 6 = 54 (G) · 12 × 3 = 36 (N) · 1 × 2 = 2 (S) · 8 × 11 = 88 (V) · 8 × 6 = 48 (E) · 5 × 4 = 20 (I) · 9 × 11 = 99 (D) · 9 × 7 = 63 (O)
- Clue 2 (Bar model word problems): "RIGHT HANDED"Pixel Builder has 96 iron ingots, packed 12 to a bag. How many bags can be filled? = 8 (R) · One group collected 51 iron ingots and another group collected 67 iron ingots. How many iron ingots in all? = 118 (H) · Pixel Builder used 1/2 of the golden carrots on the first day. The other 62 golden carrots were used the next day. How many golden carrots were there in all? = 124 (T) · Pixel Builder has 5 times as many diamonds as a teammate. The teammate has 3 diamonds. How many diamonds does Pixel Builder have? = 15 (A) · Pixel Builder used 2/5 of the iron ingots on the first day. The other 78 iron ingots were used the next day. How many iron ingots were there in all? = 130 (I) · There were 164 redstone dust in all. 22 redstone dust were used. How many redstone dust are left? = 142 (G) · The red team has 133 redstone dust and the blue team has 22 redstone dust. How many more redstone dust does the red team have? = 111 (N)
- Clue 3 (Word problems): "SPLASH POTION"There were 93 redstone dust. 32 were used up. How many redstone dust are left? = 61 (S) · Pixel Builder found 12 diamonds yesterday and 28 more today. How many diamonds in all? = 40 (L) · Pixel Builder found 2 iron ingots yesterday and 10 more today. How many iron ingots in all? = 12 (P) · Pixel Builder found 38 golden carrots yesterday and 35 more today. How many golden carrots in all? = 73 (H) · There were 68 golden carrots. 29 were used up. How many golden carrots are left? = 39 (O) · Pixel Builder lined up 10 rows of 6 diamonds. How many diamonds in all? = 60 (A) · There were 96 golden carrots. 31 were used up. How many golden carrots are left? = 65 (T)
- Clue 4 (Rounding): "WE FOUND A PURPLE ENDER HELMET AT THE SITE"Round 2,266 to the nearest hundred = 2300 (W) · Round 456 to the nearest hundred = 500 (E) · Round 158 to the nearest hundred = 200 (R) · Round 17 to the nearest ten = 20 (A) · Round 231 to the nearest ten = 230 (N) · Round 1,279 to the nearest hundred = 1300 (H) · Round 53 to the nearest ten = 50 (I) · Round 6,895 to the nearest thousand = 7000 (M) · Round 66 to the nearest ten = 70 (P) · Round 371 to the nearest ten = 370 (L) · Round 1,098 to the nearest hundred = 1100 (O) · Round 107 to the nearest ten = 110 (S) · Round 882 to the nearest hundred = 900 (U) · Round 3,675 to the nearest hundred = 3700 (T) · Round 88 to the nearest ten = 90 (D) · Round 168 to the nearest ten = 170 (F)
- Clue 5 (Division facts (1-12)): surviving statement (box 3) → ZombieZack3 ÷ 3 = 1 · 12 ÷ 3 = 4 · 14 ÷ 2 = 7 · 12 ÷ 6 = 2 · 99 ÷ 11 = 9 · 60 ÷ 10 = 6 · 60 ÷ 12 = 5 · 12 ÷ 1 = 12 · 132 ÷ 12 = 11 · 110 ÷ 11 = 10 · 56 ÷ 7 = 8
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Multiplication, Bar models, Word problems, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Mystery of the Griefed Fortress — set in Pixel Craft World
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects