Grade 6Reading: grades 5-6Fractions of a numberWord problemsRoundingMultiplication
The Lost Emerald of Temple Island
The Golden Monkey Statue has been snatched from the central altar of Temple Island! The Chief Curator needs your team of junior archeologists to track down the culprit before they escape the jungle.
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 | Adventure Tool | Animal Companion | Compass Grip | Hairstyle | Jungle Distraction |
|---|---|---|---|---|---|
| Sally Lockhart | magnifying lens | helpful gecko | right handed compass | curly hair | tickle curse |
| Lara Croft | grappling hook | sneaky capybara | left handed compass | spiky crewcut | pollen sneeze |
| Cam Jansen | pocket sonar | clever monkey | right handed compass | spiky crewcut | tickle curse |
| Julius Stone | laser pointer | sneaky capybara | left handed compass | spiky crewcut | pollen sneeze |
| Sadie Kane | grappling hook | trained parrot | right handed compass | messy ponytail | fear of frogs |
| Leo Cruz | pocket sonar | trained parrot | left handed compass | spiky crewcut | fear of frogs |
| Carter Kane | magnifying lens | helpful gecko | left handed compass | spiky crewcut | pollen sneeze |
| Ben Gates | pocket sonar | sneaky capybara | left handed compass | curly hair | pollen sneeze |
| Nancy Drew | pocket sonar | tiny tree frog | left handed compass | spiky crewcut | pollen sneeze |
| Percy Jackson | decoder ring | helpful gecko | right handed compass | spiky crewcut | fear of frogs |
| Grover Underwood | grappling hook | clever monkey | right handed compass | curly hair | fear of frogs |
| Minerva Keen | pocket sonar | sneaky capybara | left handed compass | messy ponytail | tickle curse |
| Encyclopedia Brown | decoder ring | trained parrot | right handed compass | curly hair | pollen sneeze |
| Indiana Jones | laser pointer | trained parrot | left handed compass | spiky crewcut | fear of frogs |
| Hazel Levesque | decoder ring | clever monkey | left handed compass | spiky crewcut | pollen sneeze |
| Nellie Bly | magnifying lens | helpful gecko | right handed compass | spiky crewcut | fear of frogs |
| Frank Hardy | decoder ring | sneaky capybara | right handed compass | spiky crewcut | pollen sneeze |
| Cody Zambrano | laser pointer | tiny tree frog | left handed compass | curly hair | tickle curse |
| Joe Hardy | magnifying lens | helpful gecko | right handed compass | messy ponytail | fear of frogs |
| Alex Rider | decoder ring | clever monkey | right handed compass | messy ponytail | tickle curse |
| Annabelle Chase | laser pointer | sneaky capybara | left handed compass | messy ponytail | fear of frogs |
Clue 1
Fractions of a number
To unlock the temple's outer gate, we must count a specific fraction of the carved sun tiles on the floor.
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
20
37
22
30
18
31
31
9
18
16
25
8
22
15
16
8
T
20
37
9
30
22
9
34
31
22
30
22
28
19
8
16
10
22
17
1/8 of 160 =T
2/4 of 34 =Y
7/8 of 32 =R
1/8 of 80 =K
1/6 of 114 =M
1/6 of 150 =D
2/5 of 85 =C
1/6 of 132 =E
3/8 of 80 =V
3/6 of 74 =H
3/6 of 36 =I
9/10 of 10 =A
1/6 of 96 =N
5/6 of 18 =S
2/4 of 62 =L
2/10 of 40 =O
0/16 letters found
Clue 2
Word problems
We found a discarded supply crate. Let us solve the word problem to figure out how many juice boxes the thief drank.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
L
117
39
41
99
69
38
86
D
39
D
C
O
M
P
38
S
S
Explorer found 88 pith helmets yesterday and 29 more today. How many pith helmets in all?L
Explorer found 39 golden coins yesterday and 30 more today. How many golden coins in all?H
There were 122 golden coins. 36 were used up. How many golden coins are left?N
There were 104 ancient maps. 5 were used up. How many ancient maps are left?T
There were 56 golden coins. 17 were used up. How many golden coins are left?E
There were 81 pith helmets. 40 were used up. How many pith helmets are left?F
Explorer found 10 crystal shards yesterday and 28 more today. How many crystal shards in all?A
0/7 letters found
Clue 3
Rounding
The pressure plate on the pedestal is broken and only shows a rounded number of total grams.
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
70
900
50
2300
200
4300
4300
370
200
130
20
130
50
50
2900
50
90
4300
3000
290
90
4300
230
130
50
370
2000
T
70
900
50
430
4300
3000
500
50
2000
20
Round 74 to the nearest tenT
Round 879 to the nearest hundredH
Round 1,958 to the nearest thousandR
Round 431 to the nearest tenF
Round 549 to the nearest hundredW
Round 4,292 to the nearest hundredL
Round 367 to the nearest tenA
Round 2,879 to the nearest hundredZ
Round 133 to the nearest tenN
Round 92 to the nearest tenD
Round 293 to the nearest tenU
Round 222 to the nearest hundredI
Round 231 to the nearest tenY
Round 21 to the nearest tenS
Round 50 to the nearest tenE
Round 3,491 to the nearest thousandO
Round 2,262 to the nearest hundredV
0/17 letters found
Clue 4
Multiplication facts (1-12)
We need to count the columns of stone pillars in the grand hall to find the correct 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.
W
9
20
144
3
48
4
132
54
6
3
8
40
6
72
44
8
54
144
8
3
12
72
54
110
44
45
70
18
8
20
W
9
18
48
40
3 × 3 =W
9 × 5 =K
2 × 6 =M
12 × 4 =U
9 × 8 =A
11 × 12 =D
8 × 1 =R
8 × 5 =T
3 × 1 =O
11 × 10 =P
1 × 4 =N
6 × 1 =H
6 × 9 =S
11 × 4 =I
7 × 10 =Y
12 × 12 =F
5 × 4 =E
2 × 9 =C
0/18 letters found
Clue 5
Fractions of a number — the last clue
To split our water supplies evenly, we have to calculate the exact fraction of canteens left in our packs.
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
5/8 of 8 = ?
1/4 of 4 = ?
1/10 of 120 = ?
1/4 of 36 = ?
1/5 of 35 = ?
5/10 of 12 = ?
5/10 of 6 = ?
1/3 of 6 = ?
5/10 of 22 = ?
1/8 of 64 = ?
4/10 of 10 = ?
Step 2 — cross out the sentence with each answer
1.The villain grabbed the ancient crown, then fled through a secret tunnel.
2.The villain pocketed the diamond key, then escaped on a zipline.
3.The villain stole the golden monkey statue, then hopped onto a river raft.
4.The villain snatched the sacred scroll, then fled through a secret tunnel.
5.The villain stole the golden monkey statue, then swung away on a jungle vine.
6.The villain pocketed the diamond key, then fled through a secret tunnel.
7.The villain grabbed the ancient crown, then hopped onto a river raft.
8.The villain stole the golden monkey statue, then escaped on a zipline.
9.The villain snatched the sacred scroll, then hopped onto a river raft.
10.The villain swiped the ruby map, then hopped onto a river raft.
11.The villain snatched the sacred scroll, then dashed into the thick mist.
12.The villain pocketed the diamond key, then swung away on a jungle vine.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Lost Emerald of Temple Island
Culprit: Nancy Drew (pocket sonar · tiny tree frog · left handed compass · spiky crewcut · pollen sneeze)
- Clue 1 (Fractions of a number): "THE VILLAIN DOES NOT HAVE A CLEVER MONKEY"1/8 of 160 = 20 (T) · 2/4 of 34 = 17 (Y) · 7/8 of 32 = 28 (R) · 1/8 of 80 = 10 (K) · 1/6 of 114 = 19 (M) · 1/6 of 150 = 25 (D) · 2/5 of 85 = 34 (C) · 1/6 of 132 = 22 (E) · 3/8 of 80 = 30 (V) · 3/6 of 74 = 37 (H) · 3/6 of 36 = 18 (I) · 9/10 of 10 = 9 (A) · 1/6 of 96 = 16 (N) · 5/6 of 18 = 15 (S) · 2/4 of 62 = 31 (L) · 2/10 of 40 = 8 (O)
- Clue 2 (Word problems): "LEFT HANDED COMPASS"Explorer found 88 pith helmets yesterday and 29 more today. How many pith helmets in all? = 117 (L) · Explorer found 39 golden coins yesterday and 30 more today. How many golden coins in all? = 69 (H) · There were 122 golden coins. 36 were used up. How many golden coins are left? = 86 (N) · There were 104 ancient maps. 5 were used up. How many ancient maps are left? = 99 (T) · There were 56 golden coins. 17 were used up. How many golden coins are left? = 39 (E) · There were 81 pith helmets. 40 were used up. How many pith helmets are left? = 41 (F) · Explorer found 10 crystal shards yesterday and 28 more today. How many crystal shards in all? = 38 (A)
- Clue 3 (Rounding): "THE VILLAIN SNEEZED LOUDLY NEAR THE FLOWERS"Round 74 to the nearest ten = 70 (T) · Round 879 to the nearest hundred = 900 (H) · Round 1,958 to the nearest thousand = 2000 (R) · Round 431 to the nearest ten = 430 (F) · Round 549 to the nearest hundred = 500 (W) · Round 4,292 to the nearest hundred = 4300 (L) · Round 367 to the nearest ten = 370 (A) · Round 2,879 to the nearest hundred = 2900 (Z) · Round 133 to the nearest ten = 130 (N) · Round 92 to the nearest ten = 90 (D) · Round 293 to the nearest ten = 290 (U) · Round 222 to the nearest hundred = 200 (I) · Round 231 to the nearest ten = 230 (Y) · Round 21 to the nearest ten = 20 (S) · Round 50 to the nearest ten = 50 (E) · Round 3,491 to the nearest thousand = 3000 (O) · Round 2,262 to the nearest hundred = 2300 (V)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND SHORT HAIRS FROM A SPIKY CREWCUT"3 × 3 = 9 (W) · 9 × 5 = 45 (K) · 2 × 6 = 12 (M) · 12 × 4 = 48 (U) · 9 × 8 = 72 (A) · 11 × 12 = 132 (D) · 8 × 1 = 8 (R) · 8 × 5 = 40 (T) · 3 × 1 = 3 (O) · 11 × 10 = 110 (P) · 1 × 4 = 4 (N) · 6 × 1 = 6 (H) · 6 × 9 = 54 (S) · 11 × 4 = 44 (I) · 7 × 10 = 70 (Y) · 12 × 12 = 144 (F) · 5 × 4 = 20 (E) · 2 × 9 = 18 (C)
- Clue 5 (Fractions of a number): surviving statement (box 10) → Nancy Drew5/8 of 8 = 5 · 1/4 of 4 = 1 · 1/10 of 120 = 12 · 1/4 of 36 = 9 · 1/5 of 35 = 7 · 5/10 of 12 = 6 · 5/10 of 6 = 3 · 1/3 of 6 = 2 · 5/10 of 22 = 11 · 1/8 of 64 = 8 · 4/10 of 10 = 4
About this mystery
- Grade level
- Grade 6 math
- Math topics
- Fractions of a number, Word problems, Rounding, Multiplication
- Reading level
- grades 5-6
- Theme
- The Lost Emerald of Temple Island — set in The ancient, vine-covered ruins of Temple Island deep in the jungle
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects