⛏️ MinecraftGrade 4Reading: grades 3-4Place valueAdditionSubtractionRoundingMissing addends

The Case of the Missing Diamond Block

Someone snuck into the town square and griefed the giant diamond statue! The Lead Builder needs your help. We must trace the blocky footprints, crack the redstone codes, and find the sneaky griefer before they ruin the whole server!

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	Super Ability	Survival Gear	Swinging Hand	Helmet Choice	Greatest Fear
Steve	redstone hacking	trident throwing	right handed swings	iron helmet	splash water
Dream	lava walking	trident throwing	right handed swings	iron helmet	splash water
Stampy	lava walking	trident throwing	right handed swings	iron helmet	milk buckets
Sb737	taming wolves	ender pearling	right handed swings	gold helmet	milk buckets
Pearlescent	speed bridging	elytra flying	right handed swings	gold helmet	splash water
Gemini	brewing potions	totem holding	right handed swings	iron helmet	soul sand
Alex	lava walking	elytra flying	left handed swings	iron helmet	splash water
Mumbo	speed bridging	totem holding	right handed swings	iron helmet	splash water
Joel	brewing potions	trident throwing	right handed swings	iron helmet	splash water
Tommy	taming wolves	shield blocking	left handed swings	gold helmet	soul sand
Sapnap	speed bridging	trident throwing	right handed swings	gold helmet	splash water
Skeppy	speed bridging	ender pearling	left handed swings	gold helmet	milk buckets
Ranboo	lava walking	shield blocking	left handed swings	diamond helmet	splash water
Lizzie	taming wolves	trident throwing	left handed swings	iron helmet	milk buckets
Grian	lava walking	elytra flying	right handed swings	iron helmet	splash water
Etho	taming wolves	ender pearling	left handed swings	iron helmet	soul sand
Hermit	brewing potions	elytra flying	right handed swings	diamond helmet	splash water
CaptainSparklez	taming wolves	elytra flying	left handed swings	gold helmet	splash water
Techno	speed bridging	shield blocking	right handed swings	gold helmet	splash water
BadBoyHalo	speed bridging	elytra flying	right handed swings	diamond helmet	soul sand
George	taming wolves	totem holding	left handed swings	iron helmet	milk buckets

Clue 1

Place value

We found a locked chest with a digital display. The numbers on the screen show the exact place values of the block count used to build the statue.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

300

5000

4000

6000

4000

400

4000

600

1000

4000

1000

300

5000

2000

200

4000

2000

300

1000

300

4000

100

What is the value of the 3 in 7,389?T

What is the value of the 5 in 252?R

What is the value of the 2 in 82,048?A

What is the value of the 1 in 615?S

What is the value of the 5 in 95,624?H

What is the value of the 6 in 16,853?I

What is the value of the 6 in 4,618?D

What is the value of the 7 in 6,372?G

What is the value of the 1 in 1,285?O

What is the value of the 2 in 290?V

What is the value of the 9 in 591?N

What is the value of the 4 in 492?F

What is the value of the 1 in 2,130?M

What is the value of the 4 in 4,037?E

0/14 letters found

Clue 2

Addition

To unlock the next clue, we have to count all the cobblestone and oak wood blocks the griefer dropped and add them 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.

9599

4735

7841

2188

2612

2188

9687

6328

4137

3127

4137

3922

7475

4735

6328

7841

3922

4376

9599

2322

7851

3127

2612

2188

3127

7841

9529

9687

3922

4259 + 5340 =R

2713 + 2022 =I

1675 + 1452 =E

1556 + 2581 =D

6245 + 3442 =A

6601 + 2928 =L

5119 + 2732 =K

3800 + 3675 =W

1170 + 1018 =H

3800 + 2528 =N

5300 + 2541 =G

1842 + 2534 =B

2290 + 1632 =S

1043 + 1279 =O

1252 + 1360 =T

0/15 letters found

Clue 3

Subtraction

A sneaky creeper blew up near the supply chest! We must subtract the ruined iron ingots from our total to see what remains.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

5580

6914

5355

7671

5580

2878

6211

7671

1160

3881

7403

5580

5355

1126

6211

3881

1984

1160

2878

3881

4973

1984

1126

6211

4080

5623 - 43 =S

7374 - 3294 =N

2747 - 1621 =O

7632 - 4754 =H

8840 - 3485 =L

5549 - 4389 =T

9579 - 2176 =R

7971 - 2998 =M

11022 - 4811 =W

2230 - 246 =D

7901 - 4020 =E

11118 - 4204 =P

11922 - 4251 =A

0/13 letters found

Clue 4

Rounding

Our coordinates tracker is fuzzy. We have to round the broken numbers to the nearest ten to find the griefer's escape path.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

3000

700

2300

2000

170

9000

7000

230

3700

230

700

9000

370

3700

2000

500

370

700

230

700

7000

Round 3,197 to the nearest thousandW

Round 742 to the nearest hundredE

Round 74 to the nearest tenH

Round 93 to the nearest tenN

Round 2,312 to the nearest hundredF

Round 9,217 to the nearest thousandD

Round 31 to the nearest tenT

Round 368 to the nearest tenI

Round 3,707 to the nearest hundredR

Round 174 to the nearest tenU

Round 6,953 to the nearest thousandS

Round 473 to the nearest hundredP

Round 226 to the nearest tenC

Round 21 to the nearest tenA

Round 2,490 to the nearest thousandO

0/15 letters found

Clue 5

Missing addends — the last clue

The redstone repeater needs more dust to power up. We know the total charge needed, so we must calculate the missing amount to fix it.

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

16 + ___ = 19

31 + ___ = 38

11 + ___ = 19

29 + ___ = 35

26 + ___ = 35

40 + ___ = 44

10 + ___ = 20

11 + ___ = 16

30 + ___ = 31

34 + ___ = 46

18 + ___ = 29

Step 2 — cross out the sentence with each answer

1.The villain brewed a splash potion of speed, then soared away using an elytra.

2.The villain hacked the redstone door open, then threw a loyalty trident.

3.The villain brewed a splash potion of speed, then threw a loyalty trident.

4.The villain built a bridge over the lava, then teleported with an ender pearl.

5.The villain brewed a splash potion of speed, then teleported with an ender pearl.

6.The villain built a bridge over the lava, then soared away using an elytra.

7.The villain walked right across the lava lake, then threw a loyalty trident.

8.The villain walked right across the lava lake, then soared away using an elytra.

9.The villain hacked the redstone door open, then teleported with an ender pearl.

10.The villain hacked the redstone door open, then blocked an arrow with a shield.

11.The villain walked right across the lava lake, then teleported with an ender pearl.

12.The villain tamed a pack of wild wolves, then teleported with an ender pearl.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Case of the Missing Diamond Block

Culprit: Steve (redstone hacking · trident throwing · right handed swings · iron helmet · splash water)

Clue 1 (Place value): "THE GRIEFER DOES NOT HAVE A TOTEM"
What is the value of the 3 in 7,389? = 300 (T) · What is the value of the 5 in 252? = 50 (R) · What is the value of the 2 in 82,048? = 2000 (A) · What is the value of the 1 in 615? = 10 (S) · What is the value of the 5 in 95,624? = 5000 (H) · What is the value of the 6 in 16,853? = 6000 (I) · What is the value of the 6 in 4,618? = 600 (D) · What is the value of the 7 in 6,372? = 70 (G) · What is the value of the 1 in 1,285? = 1000 (O) · What is the value of the 2 in 290? = 200 (V) · What is the value of the 9 in 591? = 90 (N) · What is the value of the 4 in 492? = 400 (F) · What is the value of the 1 in 2,130? = 100 (M) · What is the value of the 4 in 4,037? = 4000 (E)
Clue 2 (Addition): "RIGHT HANDED SWINGS BROKE THE GLASS"
4259 + 5340 = 9599 (R) · 2713 + 2022 = 4735 (I) · 1675 + 1452 = 3127 (E) · 1556 + 2581 = 4137 (D) · 6245 + 3442 = 9687 (A) · 6601 + 2928 = 9529 (L) · 5119 + 2732 = 7851 (K) · 3800 + 3675 = 7475 (W) · 1170 + 1018 = 2188 (H) · 3800 + 2528 = 6328 (N) · 5300 + 2541 = 7841 (G) · 1842 + 2534 = 4376 (B) · 2290 + 1632 = 3922 (S) · 1043 + 1279 = 2322 (O) · 1252 + 1360 = 2612 (T)
Clue 3 (Subtraction): "SPLASH WATER SLOWED THEM DOWN"
5623 - 43 = 5580 (S) · 7374 - 3294 = 4080 (N) · 2747 - 1621 = 1126 (O) · 7632 - 4754 = 2878 (H) · 8840 - 3485 = 5355 (L) · 5549 - 4389 = 1160 (T) · 9579 - 2176 = 7403 (R) · 7971 - 2998 = 4973 (M) · 11022 - 4811 = 6211 (W) · 2230 - 246 = 1984 (D) · 7901 - 4020 = 3881 (E) · 11118 - 4204 = 6914 (P) · 11922 - 4251 = 7671 (A)
Clue 4 (Rounding): "WE FOUND SCRATCHED IRON PIECES"
Round 3,197 to the nearest thousand = 3000 (W) · Round 742 to the nearest hundred = 700 (E) · Round 74 to the nearest ten = 70 (H) · Round 93 to the nearest ten = 90 (N) · Round 2,312 to the nearest hundred = 2300 (F) · Round 9,217 to the nearest thousand = 9000 (D) · Round 31 to the nearest ten = 30 (T) · Round 368 to the nearest ten = 370 (I) · Round 3,707 to the nearest hundred = 3700 (R) · Round 174 to the nearest ten = 170 (U) · Round 6,953 to the nearest thousand = 7000 (S) · Round 473 to the nearest hundred = 500 (P) · Round 226 to the nearest ten = 230 (C) · Round 21 to the nearest ten = 20 (A) · Round 2,490 to the nearest thousand = 2000 (O)
Clue 5 (Missing addends): surviving statement (box 2) → Steve
16 + ___ = 19 = 3 · 31 + ___ = 38 = 7 · 11 + ___ = 19 = 8 · 29 + ___ = 35 = 6 · 26 + ___ = 35 = 9 · 40 + ___ = 44 = 4 · 10 + ___ = 20 = 10 · 11 + ___ = 16 = 5 · 30 + ___ = 31 = 1 · 34 + ___ = 46 = 12 · 18 + ___ = 29 = 11

About this mystery

Grade level: Grade 4 math
Math topics: Place value, Addition, Subtraction, Rounding, Missing addends
Reading level: grades 3-4
Theme: The Case of the Missing Diamond Block — set in a blocky Minecraft world filled with tall oak trees and deep caves
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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