Grade 6Reading: grades 3-4SubtractionAdditionMultiplicationWord problemsDivision
The Lost Emerald of Jungle Island
An emergency at the camp! Someone broke into the main tent and snatched the legendary Golden Emerald. The Chief Archeologist is stranded at the ruins without their map. We need to find which rogue explorer did it before they escape the island!
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 | Primary Gear | Backup Tool | Dominant Hand | Hair Color | Known Phobia |
|---|---|---|---|---|---|
| Lara | Laser Torch | Rope Ladder | Right Handed | Bright Red Hair | Afraid of Heights |
| Penny | Laser Torch | Walkie Talkie | Right Handed | Bright Red Hair | Scared of Spiders |
| Leo | Laser Torch | Rope Ladder | Right Handed | Dusty Brown Hair | Hates Thick Mud |
| Marcus | Grappling Hook | Walkie Talkie | Right Handed | Sandy Blonde Hair | Afraid of Heights |
| Maya | Laser Torch | Rope Ladder | Right Handed | Dusty Brown Hair | Afraid of Heights |
| Diego | Metal Detector | Handy Binoculars | Right Handed | Bright Red Hair | Afraid of Heights |
| Toby | Decoder Ring | Rope Ladder | Right Handed | Bright Red Hair | Afraid of Heights |
| Zack | Metal Detector | Rope Ladder | Right Handed | Bright Red Hair | Scared of Spiders |
| Indiana | Laser Torch | Rope Ladder | Left Handed | Dusty Brown Hair | Scared of Spiders |
| Cleo | Decoder Ring | Smoke Bomb | Left Handed | Bright Red Hair | Afraid of Heights |
| Ben | Metal Detector | Handy Binoculars | Left Handed | Bright Red Hair | Scared of Spiders |
| Sam | Grappling Hook | Handy Binoculars | Right Handed | Bright Red Hair | Scared of Spiders |
| Annie | Grappling Hook | Walkie Talkie | Left Handed | Bright Red Hair | Afraid of Heights |
| Hazel | Decoder Ring | Walkie Talkie | Right Handed | Dusty Brown Hair | Afraid of Heights |
| Carter | Decoder Ring | Old Map Scroll | Left Handed | Dusty Brown Hair | Scared of Spiders |
| Cody | Decoder Ring | Walkie Talkie | Right Handed | Sandy Blonde Hair | Afraid of Heights |
| Sadie | Laser Torch | Smoke Bomb | Left Handed | Bright Red Hair | Scared of Spiders |
| Abigail | Metal Detector | Walkie Talkie | Right Handed | Bright Red Hair | Afraid of Heights |
| Flint | Decoder Ring | Old Map Scroll | Right Handed | Bright Red Hair | Hates Thick Mud |
| Sally | Decoder Ring | Smoke Bomb | Right Handed | Bright Red Hair | Afraid of Heights |
| Rusty | Grappling Hook | Rope Ladder | Left Handed | Sandy Blonde Hair | Hates Thick Mud |
Clue 1
Subtraction
We found the rogue's supply pack, but some gear fell out. Let's subtract the lost items to see what is left.
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
6844
5891
3735
4888
4381
6169
6169
5284
4381
3344
3903
8375
3735
1084
3344
8375
T
6844
5891
5284
4888
3735
1143
4381
3344
8375
5277
1513
6169
5284
2674
1084
9524 - 2680 =T
3999 - 96 =D
4534 - 1860 =R
1378 - 294 =S
7516 - 3135 =I
5564 - 4051 =U
6602 - 711 =H
7008 - 839 =L
9332 - 4055 =C
5396 - 112 =A
5369 - 1634 =E
3104 - 1961 =B
5362 - 474 =V
3889 - 545 =N
9689 - 1314 =O
0/15 letters found
Clue 2
Addition
To open the temple gate, we must add up the total number of golden stone blocks found by our team.
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
7802
7645
8129
5516
5334
4361
5559
T
7802
5773
8129
3794
8668
5559
4715
8376
8129
8376
5334
3425
8129
3425
T
7802
7645
8129
4361
8376
8376
4361
5516
7645
T
7802
7645
5869
5745
2403
2461 + 5341 =T
1181 + 2244 =S
4442 + 4226 =P
2338 + 3221 =L
2901 + 2844 =N
3432 + 2084 =G
2125 + 1669 =X
1818 + 3955 =Y
4420 + 3956 =R
2858 + 1857 =O
3283 + 2051 =U
2584 + 1777 =I
3339 + 2530 =A
3040 + 4605 =H
1107 + 1296 =D
3524 + 4605 =E
0/16 letters found
Clue 3
Multiplication facts (1-12)
The temple floor has a grid of skull tiles. We can multiply the rows and columns to find the safe path.
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
3
96
121
70
14
70
55
121
7
T
3
T
3
50
121
33
49
48
121
8
18
T
3
T
3
96
121
T
3
18
48
48
7
48
5
54
54
3 × 1 =T
11 × 11 =E
7 × 10 =S
11 × 3 =M
1 × 7 =C
5 × 10 =R
9 × 2 =A
1 × 5 =I
7 × 7 =B
7 × 2 =U
8 × 1 =D
5 × 11 =P
6 × 9 =F
6 × 8 =L
12 × 8 =H
0/15 letters found
Clue 4
Word problems
We found a page from the rogue's notebook. Solve the riddle about their journey to unlock the next clue.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
B
50
113
109
84
58
102
113
66
D
58
A
109
113
There were 80 ancient maps. 30 were used up. How many ancient maps are left?B
There were 140 bronze keys. 27 were used up. How many bronze keys are left?R
There were 76 torch batteries. 10 were used up. How many torch batteries are left?E
Explorer Sam found 63 golden coins yesterday and 21 more today. How many golden coins in all?G
Explorer Sam found 89 torch batteries yesterday and 13 more today. How many torch batteries in all?T
Explorer Sam found 18 bronze keys yesterday and 40 more today. How many bronze keys in all?H
There were 144 jungle vines. 35 were used up. How many jungle vines are left?I
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
The local monkeys will only let us pass if we share our bananas equally. Divide them up to get 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
45 ÷ 9 = ?
30 ÷ 10 = ?
44 ÷ 4 = ?
36 ÷ 6 = ?
96 ÷ 8 = ?
30 ÷ 3 = ?
28 ÷ 7 = ?
9 ÷ 9 = ?
64 ÷ 8 = ?
9 ÷ 1 = ?
77 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain decoded the ancient wall symbols, then spotted a shortcut through the trees.
2.The villain melted the locked iron gate, then climbed up a tall stone wall.
3.The villain found the hidden trapdoor, then called a getaway helicopter.
4.The villain melted the locked iron gate, then called a getaway helicopter.
5.The villain decoded the ancient wall symbols, then vanished in a cloud of grey smoke.
6.The villain navigated the dark maze, then vanished in a cloud of grey smoke.
7.The villain swung across the crocodile pit, then vanished in a cloud of grey smoke.
8.The villain found the hidden trapdoor, then spotted a shortcut through the trees.
9.The villain melted the locked iron gate, then vanished in a cloud of grey smoke.
10.The villain decoded the ancient wall symbols, then called a getaway helicopter.
11.The villain decoded the ancient wall symbols, then climbed up a tall stone wall.
12.The villain navigated the dark maze, then spotted a shortcut through the trees.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Lost Emerald of Jungle Island
Culprit: Lara (Laser Torch · Rope Ladder · Right Handed · Bright Red Hair · Afraid of Heights)
- Clue 1 (Subtraction): "THE VILLAIN DOES NOT HAVE BINOCULARS"9524 - 2680 = 6844 (T) · 3999 - 96 = 3903 (D) · 4534 - 1860 = 2674 (R) · 1378 - 294 = 1084 (S) · 7516 - 3135 = 4381 (I) · 5564 - 4051 = 1513 (U) · 6602 - 711 = 5891 (H) · 7008 - 839 = 6169 (L) · 9332 - 4055 = 5277 (C) · 5396 - 112 = 5284 (A) · 5369 - 1634 = 3735 (E) · 3104 - 1961 = 1143 (B) · 5362 - 474 = 4888 (V) · 3889 - 545 = 3344 (N) · 9689 - 1314 = 8375 (O)
- Clue 2 (Addition): "THE GUILTY EXPLORER USES THEIR RIGHT HAND"2461 + 5341 = 7802 (T) · 1181 + 2244 = 3425 (S) · 4442 + 4226 = 8668 (P) · 2338 + 3221 = 5559 (L) · 2901 + 2844 = 5745 (N) · 3432 + 2084 = 5516 (G) · 2125 + 1669 = 3794 (X) · 1818 + 3955 = 5773 (Y) · 4420 + 3956 = 8376 (R) · 2858 + 1857 = 4715 (O) · 3283 + 2051 = 5334 (U) · 2584 + 1777 = 4361 (I) · 3339 + 2530 = 5869 (A) · 3040 + 4605 = 7645 (H) · 1107 + 1296 = 2403 (D) · 3524 + 4605 = 8129 (E)
- Clue 3 (Multiplication facts (1-12)): "THE SUSPECT TREMBLED AT THE TALL CLIFF"3 × 1 = 3 (T) · 11 × 11 = 121 (E) · 7 × 10 = 70 (S) · 11 × 3 = 33 (M) · 1 × 7 = 7 (C) · 5 × 10 = 50 (R) · 9 × 2 = 18 (A) · 1 × 5 = 5 (I) · 7 × 7 = 49 (B) · 7 × 2 = 14 (U) · 8 × 1 = 8 (D) · 5 × 11 = 55 (P) · 6 × 9 = 54 (F) · 6 × 8 = 48 (L) · 12 × 8 = 96 (H)
- Clue 4 (Word problems): "BRIGHT RED HAIR"There were 80 ancient maps. 30 were used up. How many ancient maps are left? = 50 (B) · There were 140 bronze keys. 27 were used up. How many bronze keys are left? = 113 (R) · There were 76 torch batteries. 10 were used up. How many torch batteries are left? = 66 (E) · Explorer Sam found 63 golden coins yesterday and 21 more today. How many golden coins in all? = 84 (G) · Explorer Sam found 89 torch batteries yesterday and 13 more today. How many torch batteries in all? = 102 (T) · Explorer Sam found 18 bronze keys yesterday and 40 more today. How many bronze keys in all? = 58 (H) · There were 144 jungle vines. 35 were used up. How many jungle vines are left? = 109 (I)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Lara45 ÷ 9 = 5 · 30 ÷ 10 = 3 · 44 ÷ 4 = 11 · 36 ÷ 6 = 6 · 96 ÷ 8 = 12 · 30 ÷ 3 = 10 · 28 ÷ 7 = 4 · 9 ÷ 9 = 1 · 64 ÷ 8 = 8 · 9 ÷ 1 = 9 · 77 ÷ 11 = 7
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Subtraction, Addition, Multiplication, Word problems, Division
- Reading level
- grades 3-4
- Theme
- The Lost Emerald of Jungle Island — set in The ancient Temple of Doom-Shroom in the deep jungle
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects