The Mystery of the Missing Monster Egg
Someone took the rare glowing monster egg right before the big battle tournament. Help the Ranger Squad solve the math clues to find out who did it.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Monster Type | Battle Gear | Watch Wrist | Cap Color | Favorite Berry |
|---|---|---|---|---|---|
| Maya | Grass Leaf | Magic Cloak | Wears Watch On Left | Red Cap | Sour Lemon Berry |
| Misty | Water Splash | Power Band | Wears Watch On Left | Green Cap | Sour Lemon Berry |
| Leo | Water Splash | Power Band | Wears Watch On Left | Blue Cap | Spicy Pepper Berry |
| Clemont | Electric Zap | Power Band | Wears Watch On Right | Blue Cap | Sour Lemon Berry |
| Ruby | Grass Leaf | Magic Cloak | Wears Watch On Left | Blue Cap | Sour Lemon Berry |
| Dawn | Fire Flame | Speedy Boots | Wears Watch On Right | Green Cap | Spicy Pepper Berry |
| Iris | Fire Flame | Magic Cloak | Wears Watch On Right | Green Cap | Spicy Pepper Berry |
| Nora | Electric Zap | Magic Cloak | Wears Watch On Right | Green Cap | Spicy Pepper Berry |
| Brock | Electric Zap | Shield Badge | Wears Watch On Right | Red Cap | Spicy Pepper Berry |
| Luna | Fire Flame | Feather Charm | Wears Watch On Left | Red Cap | Sour Lemon Berry |
| Zoe | Grass Leaf | Power Band | Wears Watch On Right | Blue Cap | Sour Lemon Berry |
| Rex | Psychic Glow | Feather Charm | Wears Watch On Left | Red Cap | Sour Lemon Berry |
| Flora | Psychic Glow | Shield Badge | Wears Watch On Left | Green Cap | Sour Lemon Berry |
| May | Electric Zap | Speedy Boots | Wears Watch On Left | Green Cap | Sour Lemon Berry |
| Toby | Psychic Glow | Power Band | Wears Watch On Left | Green Cap | Sour Lemon Berry |
| Cinder | Electric Zap | Magic Cloak | Wears Watch On Right | Blue Cap | Sweet Peach Berry |
| Ash | Psychic Glow | Power Band | Wears Watch On Left | Green Cap | Spicy Pepper Berry |
| Serena | Fire Flame | Power Band | Wears Watch On Right | Green Cap | Sour Lemon Berry |
| Sparky | Fire Flame | Feather Charm | Wears Watch On Left | Green Cap | Spicy Pepper Berry |
| River | Psychic Glow | Feather Charm | Wears Watch On Right | Blue Cap | Sour Lemon Berry |
| Kai | Fire Flame | Magic Cloak | Wears Watch On Left | Green Cap | Sour Lemon Berry |
Addition
Ranger Sam found monster footprints in two yards and added them together to read the 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.
Subtraction
The caretaker dropped some monster snacks from her bag and subtracted the lost ones to find a 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.
Multiplication facts (1-12)
The team lined up monster cards in equal rows to decode 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.
Skip counting
The kids counted glowing monster eggs by twos to reveal a secret note.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Missing addends — the last clue
The ranger checked the total badge count to figure out the missing badges and unlock 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!
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Missing Monster Egg
- Clue 1 (Addition): "THE SNEAKY TRAINER DOES NOT USE MAGIC CLOAK"17 + 7 = 24 (T) · 37 + 60 = 97 (N) · 17 + 19 = 36 (E) · 49 + 47 = 96 (R) · 52 + 29 = 81 (K) · 21 + 34 = 55 (D) · 22 + 24 = 46 (I) · 31 + 57 = 88 (Y) · 29 + 18 = 47 (A) · 16 + 6 = 22 (U) · 16 + 12 = 28 (O) · 34 + 35 = 69 (L) · 43 + 34 = 77 (S) · 19 + 19 = 38 (C) · 42 + 47 = 89 (H) · 29 + 16 = 45 (M) · 44 + 21 = 65 (G)
- Clue 2 (Subtraction): "WITNESS SAW A WATCH ON THE LEFT WRIST"48 - 28 = 20 (W) · 115 - 37 = 78 (I) · 92 - 18 = 74 (A) · 55 - 40 = 15 (F) · 70 - 24 = 46 (E) · 85 - 29 = 56 (N) · 30 - 14 = 16 (H) · 69 - 31 = 38 (T) · 83 - 13 = 70 (O) · 42 - 21 = 21 (L) · 84 - 2 = 82 (R) · 89 - 34 = 55 (C) · 80 - 21 = 59 (S)
- Clue 3 (Multiplication facts (1-12)): "THE VILLAIN FED THE PET SOUR LEMON BERRY"2 × 5 = 10 (T) · 2 × 8 = 16 (N) · 4 × 3 = 12 (S) · 4 × 10 = 40 (U) · 1 × 3 = 3 (P) · 9 × 10 = 90 (F) · 6 × 9 = 54 (O) · 1 × 2 = 2 (Y) · 3 × 10 = 30 (L) · 10 × 7 = 70 (B) · 11 × 2 = 22 (V) · 1 × 8 = 8 (H) · 1 × 11 = 11 (E) · 8 × 11 = 88 (M) · 5 × 5 = 25 (R) · 8 × 9 = 72 (A) · 5 × 4 = 20 (I) · 11 × 12 = 132 (D)
- Clue 4 (Skip counting): "DETECTIVES FOUND A NEAT GREEN CAP AT SITE"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 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24 = 20 (P) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (N) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (F) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (O) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (R) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (A) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (T) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (C) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (E) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (U) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (G) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (V) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (I)
- Clue 5 (Missing addends): surviving statement (box 5) → May7 + ___ = 13 = 6 · 4 + ___ = 12 = 8 · 1 + ___ = 3 = 2 · 4 + ___ = 8 = 4 · 7 + ___ = 18 = 11 · 2 + ___ = 5 = 3 · 2 + ___ = 3 = 1 · 4 + ___ = 14 = 10 · 9 + ___ = 16 = 7 · 9 + ___ = 18 = 9 · 8 + ___ = 20 = 12
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Addition, Subtraction, Multiplication, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Mystery of the Missing Monster Egg — set in Starling Island Monster Gym
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects
