Math Crackers
🦕 Dinosaurs, MinecraftGrade 2Reading: grades 5-6Place valueAdditionSubtractionSkip countingMissing addends

The Great Dino Block Heist

A rare fossilized egg was stolen from the central dig site in Prehistoric Craft Valley. The thief used trained dinos and blocky tools to break into the vault. Inspect the clues left at the camp to catch the culprit before they escape into the Nether.

Suspects

Possible suspects

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

21 of 21 still in play
NameDino CompanionMining ToolHandednessHelmet ColorFear
Parker SlateStegosaurusGold HoeRight HandedRed HelmetCreeper Hiss
Rowan ScaleStegosaurusDiamond PickaxeRight HandedGreen HelmetCreeper Hiss
Sam FossilAnkylosaurusNetherite ShovelLeft HandedGreen HelmetLava Blocks
Reese TalonVelociraptorObsidian AxeLeft HandedGreen HelmetCreeper Hiss
Sage EmeraldPterodactylGold HoeLeft HandedGreen HelmetCreeper Hiss
Finley GridAnkylosaurusGold HoeRight HandedGreen HelmetCreeper Hiss
Peyton SpikeTriceratopsGold HoeRight HandedBlue HelmetCreeper Hiss
Emerson RockPterodactylRedstone DrillRight HandedBlue HelmetTNT Blast
Tatum FangStegosaurusRedstone DrillRight HandedBlue HelmetTNT Blast
Avery RedstoneAnkylosaurusDiamond PickaxeLeft HandedRed HelmetLava Blocks
Taylor DiggsVelociraptorRedstone DrillLeft HandedBlue HelmetTNT Blast
Casey BoneAnkylosaurusRedstone DrillRight HandedGreen HelmetCreeper Hiss
Alex BlockStegosaurusDiamond PickaxeRight HandedRed HelmetTNT Blast
River PixelAnkylosaurusObsidian AxeLeft HandedBlue HelmetTNT Blast
Dakota MinerStegosaurusGold HoeRight HandedGreen HelmetCreeper Hiss
Jordan CraftStegosaurusObsidian AxeRight HandedRed HelmetTNT Blast
Logan LapisAnkylosaurusGold HoeLeft HandedGreen HelmetCreeper Hiss
Riley QuartzAnkylosaurusRedstone DrillLeft HandedGreen HelmetLava Blocks
Quinn AmberStegosaurusRedstone DrillRight HandedGreen HelmetTNT Blast
Skyler CubedVelociraptorNetherite ShovelRight HandedGreen HelmetCreeper Hiss
Hayden BedrockTriceratopsGold HoeRight HandedRed HelmetLava Blocks
Clue 1

Place value

The fossil security terminal displays digits based on tens and ones to 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
67
62
19
72
57
92
92
81
57
42
88
44
19
63
42
44
T
67
26
63
19
81
42
19
T
67
62
19
69
57
T
67
19
63
62
44
72
19
92
What number has 6 tens and 7 ones?T
What number has 6 tens and 2 ones?H
What number has 9 tens and 2 ones?L
What number has 4 tens and 2 ones?N
What number has 1 ten and 9 ones?E
What number has 4 tens and 4 ones?O
What number has 2 tens and 6 ones?U
What number has 8 tens and 1 one?A
What number has 5 tens and 7 ones?I
What number has 7 tens and 2 ones?V
What number has 6 tens and 9 ones?R
What number has 8 tens and 8 ones?D
What number has 6 tens and 3 ones?S
0/13 letters found
Clue 2

Addition

You tally the mined obsidian blocks together to reveal the next 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.

F
24
46
46
82
69
78
90
21
82
61
61
70
46
59
48
78
90
75
70
82
70
48
21
60
41
60
61
59
90
21
75
10 + 14 =F
23 + 23 =O
16 + 32 =A
63 + 27 =I
36 + 46 =T
44 + 25 =P
6 + 15 =N
28 + 13 =E
49 + 29 =R
41 + 18 =W
23 + 38 =S
21 + 39 =D
51 + 24 =G
47 + 23 =H
0/14 letters found
Clue 3

Subtraction

You calculate how many craft items remain in the chest to narrow down the suspect file.

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
64
89
52
44
78
A
64
53
78
47
43
57
57
62
57
43
23
52
44
44
44
47
A
64
43
57
89
78
23
57
60
A
64
41
A
64
61
74 - 10 =A
86 - 25 =Y
67 - 14 =N
80 - 39 =W
83 - 36 =C
91 - 39 =I
110 - 32 =T
122 - 33 =D
54 - 31 =H
99 - 37 =P
68 - 8 =M
75 - 18 =E
81 - 38 =R
74 - 30 =S
0/14 letters found
Clue 4

Skip counting

Following a sequence of dino tracks spaced in equal steps reveals another secret.

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

G
9
16
42
42
24
70
42
20
39
42
100
26
65
27
100
10
40
27
12
90
65
24
26
90
24
100
70
42
130
20
90
15
33
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15G
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21C
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75U
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28N
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14W
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50A
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30L
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39K
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16F
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150B
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20R
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, ___, 80, 90H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120T
0/18 letters found
Clue 5

Missing addends — the last clue

Figuring out how many missing redstone dust piles are needed to complete the circuit gives 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
10 + ___ = 17
5 + ___ = 10
3 + ___ = 5
6 + ___ = 7
9 + ___ = 12
6 + ___ = 14
8 + ___ = 20
3 + ___ = 12
10 + ___ = 20
2 + ___ = 13
5 + ___ = 11
Step 2 — cross out the sentence with each answer
1.The villain flew in on a pterodactyl, then plowed with a gold hoe.
2.The villain marched with an ankylosaurus, then plowed with a gold hoe.
3.The villain tamed a triceratops, then chopped with an obsidian axe.
4.The villain marched with an ankylosaurus, then powered up a redstone drill.
5.The villain saddled up a stegosaurus, then plowed with a gold hoe.
6.The villain saddled up a stegosaurus, then dug with a netherite shovel.
7.The villain saddled up a stegosaurus, then swung a diamond pickaxe.
8.The villain tamed a triceratops, then swung a diamond pickaxe.
9.The villain marched with an ankylosaurus, then swung a diamond pickaxe.
10.The villain marched with an ankylosaurus, then dug with a netherite shovel.
11.The villain whistled for a velociraptor, then powered up a redstone drill.
12.The villain whistled for a velociraptor, then chopped with an obsidian axe.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 2 math
Math topics
Place value, Addition, Subtraction, Skip counting, Missing addends
Reading level
grades 5-6
Theme
The Great Dino Block Heist — set in Prehistoric Craft Valley
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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