Math Crackers
⛏️ MinecraftGrade 2Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends

The Block Castle Mystery

Someone wrecked the giant diamond tower at Pixel Peak Kingdom! The Master Builder needs your help to find the sneaky griefing trapper before more builds are ruined.

Suspects

Possible suspects

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

21 of 21 still in play
NameMining SkillSpecial GearDominant HandPixel HairTrapping Foil
Nico NetherRedstone WiringGlow GlassesLeft HandedCurly PixelsBright Flash
Steve BlockTorch LightingWater HelmetLeft HandedCurly PixelsLoud Bell
Cody CraftSpeed CraftingGlow GlassesLeft HandedCurly PixelsLoud Bell
Timmy TorchRedstone WiringWater HelmetRight HandedBlocky FlatLoud Bell
Miner MaxRedstone WiringGlider WingsRight HandedCurly PixelsLoud Bell
Noah NodeRedstone WiringLava BootsLeft HandedCurly PixelsLoud Bell
Zack ZoneSpeed CraftingGlider WingsLeft HandedSpiky PixelsBright Flash
Tess TileRedstone WiringGlow GlassesLeft HandedBlocky FlatWater Bucket
Crafty CarlRedstone WiringLava BootsLeft HandedCurly PixelsBright Flash
Ruby RedstonePickaxe MiningGlow GlassesLeft HandedSpiky PixelsBright Flash
Builder BobPickaxe MiningLava BootsLeft HandedCurly PixelsBright Flash
Vera VaultSpeed CraftingGlider WingsLeft HandedCurly PixelsLoud Bell
Sammy SlabSpeed CraftingLava BootsLeft HandedBlocky FlatBright Flash
Maya MinerPickaxe MiningGlow GlassesRight HandedSpiky PixelsWater Bucket
Alex StoneSpeed CraftingGlow GlassesRight HandedBlocky FlatWater Bucket
Piper PeakPickaxe MiningEnder PearlLeft HandedCurly PixelsWater Bucket
Leo LapisPickaxe MiningEnder PearlLeft HandedCurly PixelsLoud Bell
Pixel PennySpeed CraftingLava BootsRight HandedCurly PixelsWater Bucket
Ollie OreSpeed CraftingGlider WingsLeft HandedSpiky PixelsLoud Bell
Danny DiggsTorch LightingGlider WingsRight HandedCurly PixelsLoud Bell
Bella BrickTorch LightingWater HelmetRight HandedBlocky FlatLoud Bell
Clue 1

Addition

We count up all the iron blocks found at the scene to uncover a secret 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
73
79
37
26
97
24
24
84
97
60
74
27
37
44
60
27
T
73
78
44
37
24
84
26
84
96
27
27
T
73
44
40 + 33 =T
65 + 32 =I
42 + 54 =B
20 + 17 =E
51 + 23 =D
16 + 8 =L
37 + 23 =N
10 + 17 =O
28 + 50 =U
23 + 56 =H
14 + 12 =V
30 + 54 =A
22 + 22 =S
0/13 letters found
Clue 2

Subtraction

Some shiny diamonds went missing from the chest so we calculate how many were taken.

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
14
44
T
64
50
59
12
32
33
20
44
50
44
53
59
61
44
57
51
59
27
44
39
T
64
14
59
82
61
44
61
57
76
36
27
61
44
50
92 - 28 =T
89 - 13 =U
51 - 1 =R
58 - 22 =I
41 - 21 =W
63 - 6 =B
75 - 22 =M
87 - 5 =N
66 - 15 =Y
25 - 13 =C
35 - 2 =S
45 - 31 =H
93 - 34 =A
73 - 12 =D
59 - 27 =K
60 - 16 =E
52 - 13 =F
47 - 20 =L
0/18 letters found
Clue 3

Skip counting

We count rows of redstone torches by twos to unlock the hidden door.

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
70
42
33
14
60
6
120
42
42
100
33
14
30
60
100
10
A
70
40
120
60
33
20
20
55
35
120
18
50
42
42
A
70
50
30
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80A
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10B
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140E
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14C
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45H
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, ___, 35, 40N
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22V
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18U
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48L
0/16 letters found
Clue 4

Place value

The vault lock shows tens and ones made of lapis 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.

C
34
98
87
32
84
16
52
38
13
32
97
74
52
87
44
74
85
42
58
98
77
43
58
77
36
97
13
25
32
58
C
34
96
What number has 3 tens and 4 ones?C
What number has 3 tens and 2 ones?L
What number has 4 tens and 3 ones?D
What number has 1 ten and 3 ones?E
What number has 9 tens and 6 ones?K
What number has 2 tens and 5 ones?B
What number has 3 tens and 8 ones?X
What number has 1 ten and 6 ones?P
What number has 7 tens and 7 ones?N
What number has 5 tens and 8 ones?O
What number has 4 tens and 2 ones?F
What number has 9 tens and 7 ones?H
What number has 7 tens and 4 ones?A
What number has 8 tens and 5 ones?S
What number has 8 tens and 4 ones?Y
What number has 4 tens and 4 ones?W
What number has 8 tens and 7 ones?R
What number has 5 tens and 2 ones?I
What number has 9 tens and 8 ones?U
What number has 3 tens and 6 ones?T
0/20 letters found
Clue 5

Missing addends — the last clue

We figure out how many extra emeralds are needed to finish repairing the wall.

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
7 + ___ = 17
6 + ___ = 17
10 + ___ = 18
8 + ___ = 10
1 + ___ = 6
6 + ___ = 13
4 + ___ = 5
7 + ___ = 13
10 + ___ = 19
2 + ___ = 6
7 + ___ = 10
Step 2 — cross out the sentence with each answer
1.The villain stacked iron blocks, then glided with wings.
2.The villain lit coal torches, then tossed ender pearls.
3.The villain lit coal torches, then walked on lava.
4.The villain crafted wooden chests, then walked on lava.
5.The villain stacked iron blocks, then swam underwater.
6.The villain mined deep ores, then glided with wings.
7.The villain crafted wooden chests, then swam underwater.
8.The villain lit coal torches, then swam underwater.
9.The villain mined deep ores, then walked on lava.
10.The villain crafted wooden chests, then glided with wings.
11.The villain mined deep ores, then tossed ender pearls.
12.The villain crafted wooden chests, then wore glow glasses.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 2 math
Math topics
Addition, Subtraction, Skip counting, Place value, Missing addends
Reading level
grades 1-2
Theme
The Block Castle Mystery — set in Pixel Peak Kingdom
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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