🦕 Dinosaurs, MinecraftGrade 2Reading: grades 5-6Place valueAdditionSubtractionSkip countingMissing addends
The Great Fossil Biome Heist
Someone smashed open the obsidian fossil vault and stole the priceless golden Tyrannosaurus skull!
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 | Dino Companion | Block Gear | Dominant Hand | Helmet Style | Trap Weakness |
|---|---|---|---|---|---|
| Dennis Nedry | Raptor Companion | Redstone Launcher | Left Handed | Iron Helmet | Anvil Traps |
| Stampy Cat | Triceratops Guard | Slime Boots | Left Handed | Chainmail Hood | Lava Pits |
| Steve Miner | T-Rex Pet | Netherite Sword | Right Handed | Chainmail Hood | Anvil Traps |
| Claire Dearing | Triceratops Guard | Netherite Sword | Left Handed | Iron Helmet | Anvil Traps |
| Ellie Sattler | Triceratops Guard | Netherite Sword | Right Handed | Leather Cap | Lava Pits |
| Dr Grant | T-Rex Pet | Netherite Sword | Right Handed | Iron Helmet | Cactus Barriers |
| Kayla Watts | Triceratops Guard | Enchanted Bow | Left Handed | Iron Helmet | Cactus Barriers |
| Ramsay Cole | Triceratops Guard | Redstone Launcher | Right Handed | Iron Helmet | Lava Pits |
| Redstone Rick | Stegosaurus Mount | Slime Boots | Left Handed | Iron Helmet | Anvil Traps |
| Ian Malcolm | Pterodactyl Drone | Redstone Launcher | Right Handed | Iron Helmet | Anvil Traps |
| Diamond Dan | T-Rex Pet | Netherite Sword | Left Handed | Leather Cap | Lava Pits |
| Franklin Webb | Triceratops Guard | Enchanted Bow | Right Handed | Leather Cap | Anvil Traps |
| Sarah Harding | Stegosaurus Mount | Diamond Pickaxe | Left Handed | Chainmail Hood | Cactus Barriers |
| Captain Spark | Stegosaurus Mount | Slime Boots | Left Handed | Chainmail Hood | Anvil Traps |
| Jens Bergen | Raptor Companion | Redstone Launcher | Right Handed | Chainmail Hood | Lava Pits |
| Notch Block | Triceratops Guard | Slime Boots | Right Handed | Iron Helmet | Anvil Traps |
| Alex Craft | Stegosaurus Mount | Diamond Pickaxe | Left Handed | Chainmail Hood | Lava Pits |
| Owen Grady | T-Rex Pet | Enchanted Bow | Left Handed | Iron Helmet | Anvil Traps |
| Henry Wu | Triceratops Guard | Enchanted Bow | Left Handed | Iron Helmet | Anvil Traps |
| Cubey Chris | T-Rex Pet | Netherite Sword | Left Handed | Leather Cap | Anvil Traps |
| Eric Kirby | T-Rex Pet | Enchanted Bow | Left Handed | Chainmail Hood | Lava Pits |
Clue 1
Place value
We examined the place value grid on the security terminal at the fossil vault to rule out one piece of gear.
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
76
94
35
42
61
44
44
11
61
43
47
84
35
65
43
84
T
76
23
65
35
11
98
35
47
65
T
76
84
43
35
44
11
23
43
95
94
35
98
What number has 7 tens and 6 ones?T
What number has 2 tens and 3 ones?U
What number has 9 tens and 5 ones?C
What number has 8 tens and 4 ones?O
What number has 9 tens and 4 ones?H
What number has 4 tens and 2 ones?V
What number has 1 ten and 1 one?A
What number has 4 tens and 4 ones?L
What number has 6 tens and 5 ones?S
What number has 3 tens and 5 ones?E
What number has 4 tens and 7 ones?D
What number has 6 tens and 1 one?I
What number has 4 tens and 3 ones?N
What number has 9 tens and 8 ones?R
0/14 letters found
Clue 2
Addition
Adding up all the scattered bone blocks near the biome enclosure gives us a vital clue about the suspect.
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
83
32
73
77
62
77
93
73
98
T
83
62
77
73
70
T
83
32
73
91
92
71
73
67
T
83
32
39
68
70
T
83
81
93
92
47
71
81
81
77
73
36 + 47 =T
49 + 49 =C
10 + 22 =H
30 + 47 =S
33 + 37 =D
30 + 17 =Y
28 + 34 =U
25 + 48 =E
42 + 39 =O
66 + 27 =P
30 + 37 =F
36 + 56 =R
30 + 41 =L
34 + 34 =N
15 + 24 =A
33 + 58 =I
0/16 letters found
Clue 3
Subtraction
Subtracting the destroyed obsidian blocks from the total vault wall reveals evidence about their defense.
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
24
29
85
31
70
85
80
21
50
80
31
31
T
24
86
41
41
85
60
68
49
29
85
80
46
49
80
70
46
32
47
T
24
62
80
41
31
48 - 24 =T
48 - 2 =V
39 - 7 =I
85 - 35 =W
125 - 39 =O
69 - 28 =P
81 - 13 =B
82 - 22 =D
75 - 5 =N
115 - 35 =A
86 - 1 =E
40 - 11 =H
44 - 23 =K
45 - 14 =S
48 - 1 =L
72 - 23 =Y
92 - 30 =R
0/17 letters found
Clue 4
Skip counting
We counted the claw prints along the craft grid by twos and fives to identify the helmet dropped near the site.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
28
70
50
140
65
S
28
39
14
50
24
35
140
39
24
70
21
27
60
21
110
30
21
140
21
14
39
15
24
65
50
110
110
70
21
65
35
8
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160R
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45I
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33L
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21U
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, ___, 35, 40W
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80H
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18F
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12G
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70A
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45O
0/16 letters found
Clue 5
Missing addends — the last clue
Solving the missing resource count on the craft table unlocks the final record about the culprit.
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
1 + ___ = 11
1 + ___ = 4
10 + ___ = 21
10 + ___ = 22
6 + ___ = 14
5 + ___ = 11
5 + ___ = 10
4 + ___ = 8
9 + ___ = 16
8 + ___ = 17
9 + ___ = 11
Step 2 — cross out the sentence with each answer
1.The villain steered a heavy triceratops guard, then swung a glowing netherite sword.
2.The villain flew a pterodactyl reconnaissance drone, then mined through obsidian walls with a diamond pickaxe.
3.The villain tamed a giant blocky T-Rex, then shot an enchanted bow across the canyon.
4.The villain tamed a giant blocky T-Rex, then bounced over the security fences with slime boots.
5.The villain flew a pterodactyl reconnaissance drone, then shot an enchanted bow across the canyon.
6.The villain flew a pterodactyl reconnaissance drone, then fired an explosive redstone launcher.
7.The villain steered a heavy triceratops guard, then mined through obsidian walls with a diamond pickaxe.
8.The villain rode an armored stegosaurus, then mined through obsidian walls with a diamond pickaxe.
9.The villain rode an armored stegosaurus, then swung a glowing netherite sword.
10.The villain rode an armored stegosaurus, then bounced over the security fences with slime boots.
11.The villain steered a heavy triceratops guard, then shot an enchanted bow across the canyon.
12.The villain leaded a swift hunting raptor, then shot an enchanted bow across the canyon.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Fossil Biome Heist
Culprit: Claire Dearing (Triceratops Guard · Netherite Sword · Left Handed · Iron Helmet · Anvil Traps)
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE A REDSTONE LAUNCHER"What number has 7 tens and 6 ones? = 76 (T) · What number has 2 tens and 3 ones? = 23 (U) · What number has 9 tens and 5 ones? = 95 (C) · What number has 8 tens and 4 ones? = 84 (O) · What number has 9 tens and 4 ones? = 94 (H) · What number has 4 tens and 2 ones? = 42 (V) · What number has 1 ten and 1 one? = 11 (A) · What number has 4 tens and 4 ones? = 44 (L) · What number has 6 tens and 5 ones? = 65 (S) · What number has 3 tens and 5 ones? = 35 (E) · What number has 4 tens and 7 ones? = 47 (D) · What number has 6 tens and 1 one? = 61 (I) · What number has 4 tens and 3 ones? = 43 (N) · What number has 9 tens and 8 ones? = 98 (R)
- Clue 2 (Addition): "THE SUSPECT USED THEIR LEFT HAND TO PRY LOOSE"36 + 47 = 83 (T) · 49 + 49 = 98 (C) · 10 + 22 = 32 (H) · 30 + 47 = 77 (S) · 33 + 37 = 70 (D) · 30 + 17 = 47 (Y) · 28 + 34 = 62 (U) · 25 + 48 = 73 (E) · 42 + 39 = 81 (O) · 66 + 27 = 93 (P) · 30 + 37 = 67 (F) · 36 + 56 = 92 (R) · 30 + 41 = 71 (L) · 34 + 34 = 68 (N) · 15 + 24 = 39 (A) · 33 + 58 = 91 (I)
- Clue 3 (Subtraction): "THE SNEAK WAS STOPPED BY HEAVY ANVIL TRAPS"48 - 24 = 24 (T) · 48 - 2 = 46 (V) · 39 - 7 = 32 (I) · 85 - 35 = 50 (W) · 125 - 39 = 86 (O) · 69 - 28 = 41 (P) · 81 - 13 = 68 (B) · 82 - 22 = 60 (D) · 75 - 5 = 70 (N) · 115 - 35 = 80 (A) · 86 - 1 = 85 (E) · 40 - 11 = 29 (H) · 44 - 23 = 21 (K) · 45 - 14 = 31 (S) · 48 - 1 = 47 (L) · 72 - 23 = 49 (Y) · 92 - 30 = 62 (R)
- Clue 4 (Skip counting): "SHARDS OF AN IRON HELMET WERE FOUND AT THE DIG"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (R) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (I) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (M) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21 = 15 (U) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, ___, 35, 40 = 30 (W) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (H) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (F) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (G) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (A) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (O)
- Clue 5 (Missing addends): surviving statement (box 1) → Claire Dearing1 + ___ = 11 = 10 · 1 + ___ = 4 = 3 · 10 + ___ = 21 = 11 · 10 + ___ = 22 = 12 · 6 + ___ = 14 = 8 · 5 + ___ = 11 = 6 · 5 + ___ = 10 = 5 · 4 + ___ = 8 = 4 · 9 + ___ = 16 = 7 · 8 + ___ = 17 = 9 · 9 + ___ = 11 = 2
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 Fossil Biome Heist — set in The Pixelated Dig Site
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects