Math Mysteries
⛏️ MinecraftGrade 7Reading: grades 3-4Place valueMultiplicationRoundingSkip countingDivision

The Lava Grief Mystery

A sneaky griefer poured lava all over the grand spawn castle! The Server Admin needs your help to decode the clues, track down the culprit, and save the server backup files.

Suspects

Possible suspects

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

21 of 21 still in play
NameActive ModSpawned PetActive HandShelmet ColorFear
RanbooFly ToggleTamed WolfRight HandedRed ShelmetRaw Fish
JoelTNT LauncherBlue ParrotRight HandedBlue ShelmetSplash Water
Docm77Fly ToggleRed AxolotlLeft HandedGreen ShelmetSplash Water
MumboInsta-MineTamed WolfLeft HandedRed ShelmetRaw Fish
HermitTNT LauncherBaby ZombieLeft HandedGreen ShelmetRaw Fish
GrianCreative ModeRed AxolotlLeft HandedBlue ShelmetMilk Bucket
CaptainSparklezInsta-MineIron GolemLeft HandedRed ShelmetRaw Fish
TechnoInsta-MineBlue ParrotLeft HandedGreen ShelmetRaw Fish
TubboInsta-MineRed AxolotlLeft HandedRed ShelmetMilk Bucket
SparkyCreative ModeBaby ZombieLeft HandedGreen ShelmetMilk Bucket
DreamSpeed HackBaby ZombieLeft HandedRed ShelmetRaw Fish
LizzieCreative ModeRed AxolotlRight HandedGreen ShelmetRaw Fish
DanTDMSpeed HackIron GolemLeft HandedRed ShelmetSplash Water
StampyCreative ModeRed AxolotlLeft HandedRed ShelmetMilk Bucket
BadBoyHaloTNT LauncherIron GolemLeft HandedGreen ShelmetMilk Bucket
GeorgeSpeed HackBlue ParrotLeft HandedRed ShelmetRaw Fish
SteveSpeed HackBaby ZombieRight HandedBlue ShelmetMilk Bucket
EthoInsta-MineBaby ZombieLeft HandedRed ShelmetRaw Fish
SapnapTNT LauncherTamed WolfRight HandedRed ShelmetMilk Bucket
SkeppySpeed HackRed AxolotlRight HandedBlue ShelmetSplash Water
AntFrostCreative ModeIron GolemRight HandedRed ShelmetSplash Water
Clue 1

Place value

We found a coordinate code on a signpost, but the numbers are scrambled by place value. If we group the tens and ones correctly, we can unlock 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
80
3000
600
300
1000
800
800
7000
1000
40
900
60
600
9000
40
60
T
80
9000
500
7000
30
40
7000
40
1000
700
60
40
70
60
800
600
6000
What is the value of the 8 in 21,682?T
What is the value of the 3 in 21,930?W
What is the value of the 8 in 62,802?L
What is the value of the 9 in 479,780?S
What is the value of the 9 in 544,954?D
What is the value of the 7 in 181,743?R
What is the value of the 4 in 32,045?N
What is the value of the 6 in 56,390?M
What is the value of the 6 in 59,643?E
What is the value of the 7 in 434,974?G
What is the value of the 3 in 64,319?V
What is the value of the 7 in 47,450?A
What is the value of the 3 in 463,927?H
What is the value of the 6 in 59,760?O
What is the value of the 1 in 21,600?I
What is the value of the 5 in 40,504?P
0/16 letters found
Clue 2

Multiplication facts (1-12)

The griefer left stacks of blocks in a neat grid pattern. Multiplying the rows and columns of redstone torches will reveal where they went next.

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
49
24
22
4
72
22
45
77
121
12
8
54
22
15
22
8
4
25
54
72
12
4
25
54
T
49
24
T
49
24
22
63
22
15
T
49
24
45
72
42
7 × 7 =T
5 × 9 =A
5 × 5 =W
5 × 3 =F
11 × 7 =K
6 × 9 =I
12 × 2 =H
2 × 4 =R
2 × 6 =G
7 × 9 =L
2 × 2 =S
11 × 11 =Y
6 × 7 =D
11 × 2 =E
8 × 9 =N
0/15 letters found
Clue 3

Rounding

A nearby compass is spinning wildly, only giving us approximate, rounded numbers. Rounding the signals to the nearest ten helps us steady the needle.

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

Y
200
290
130
3000
2000
370
900
110
290
70
110
9000
170
30
3700
1700
1700
2000
3700
370
1300
3700
110
9000
2000
300
2000
1300
4300
3700
900
9000
Round 215 to the nearest hundredY
Round 3,221 to the nearest thousandC
Round 8,940 to the nearest thousandH
Round 174 to the nearest tenE
Round 858 to the nearest hundredS
Round 325 to the nearest hundredR
Round 369 to the nearest tenN
Round 1,261 to the nearest hundredW
Round 4,275 to the nearest hundredF
Round 293 to the nearest tenO
Round 1,696 to the nearest hundredL
Round 2,043 to the nearest thousandA
Round 3,710 to the nearest hundredI
Round 31 to the nearest tenV
Round 74 to the nearest tenP
Round 106 to the nearest tenT
Round 132 to the nearest tenU
0/17 letters found
Clue 4

Skip counting

To climb up the stone tower, we must jump on specific blocks. Counting by fives along the pressure plates lets us reach the top safely.

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
15
12
25
6
10
140
140
55
10
33
22
35
130
9
9
25
22
55
35
25
22
16
12
25
140
21
25
T
15
9
10
25
120
25
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39N
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15P
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10V
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140C
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150O
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18H
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160L
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27M
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45R
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

We recovered a chest of stolen diamonds. Sharing them equally among the villagers will make them happy enough to point out 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
50 ÷ 5 = ?
30 ÷ 6 = ?
6 ÷ 6 = ?
9 ÷ 3 = ?
4 ÷ 2 = ?
60 ÷ 5 = ?
72 ÷ 9 = ?
36 ÷ 6 = ?
132 ÷ 12 = ?
63 ÷ 7 = ?
28 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain uses speed hacks to run fast, then lets a blue parrot sit on their shoulder.
2.The villain insta-mines a deep dark tunnel, then carries a red axolotl in a bucket.
3.The villain uses speed hacks to run fast, then orders an iron golem to attack.
4.The villain uses speed hacks to run fast, then rides a baby zombie through doors.
5.The villain insta-mines a deep dark tunnel, then rides a baby zombie through doors.
6.The villain launches tnt at the village, then rides a baby zombie through doors.
7.The villain launches tnt at the village, then summons a tamed wolf to help.
8.The villain insta-mines a deep dark tunnel, then orders an iron golem to attack.
9.The villain uses creative mode to break bedrock, then lets a blue parrot sit on their shoulder.
10.The villain insta-mines a deep dark tunnel, then summons a tamed wolf to help.
11.The villain insta-mines a deep dark tunnel, then lets a blue parrot sit on their shoulder.
12.The villain uses creative mode to break bedrock, then rides a baby zombie through doors.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 7 math
Math topics
Place value, Multiplication, Rounding, Skip counting, Division
Reading level
grades 3-4
Theme
The Lava Grief Mystery — set in The Overworld Server
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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