Grade 8Reading: grades 7-9AdditionMultiplicationRoundingWord problemsDivision
The Lost Temple Sabotage
During an expedition into the Mist Valley Jungle Ruins, someone sabotaged the main camp supply vault and escaped with the golden idol. Examine the evidence to uncover the suspect.
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 Tool | Special Gear | Dominant Hand | Headwear | Vulnerability |
|---|---|---|---|---|---|
| Leo Vance | Machete | Decoder Ring | Right Handed | Bronze Helmet | Bright Lights |
| Lucas Cruz | Grappling Hook | Parachute | Right Handed | Bronze Helmet | Loud Whistles |
| Maya Lin | Pocket Compass | Leather Gloves | Left Handed | Leather Cap | Loud Whistles |
| Chloe Dubois | Machete | Decoder Ring | Left Handed | Bronze Helmet | Loud Whistles |
| Jack Snyder | Smoke Bomb | Leather Gloves | Right Handed | Bronze Helmet | Citrus Juice |
| Sofia Reyes | Grappling Hook | Decoder Ring | Right Handed | Leather Cap | Citrus Juice |
| Ava Patel | Pocket Compass | Parachute | Left Handed | Red Bandana | Loud Whistles |
| Hannah Park | Smoke Bomb | Decoder Ring | Left Handed | Bronze Helmet | Loud Whistles |
| Mia Kowalski | Pocket Compass | Leather Gloves | Left Handed | Bronze Helmet | Bright Lights |
| Kai Tanaka | Grappling Hook | Decoder Ring | Left Handed | Bronze Helmet | Bright Lights |
| Ruby Hayes | Signal Flare | Climbing Spikes | Right Handed | Bronze Helmet | Bright Lights |
| Caleb Diaz | Signal Flare | Parachute | Right Handed | Bronze Helmet | Bright Lights |
| Nora Chen | Grappling Hook | Climbing Spikes | Left Handed | Red Bandana | Bright Lights |
| Eli Thorne | Pocket Compass | Climbing Spikes | Right Handed | Red Bandana | Bright Lights |
| Liam OConnor | Smoke Bomb | Parachute | Right Handed | Leather Cap | Bright Lights |
| Sam Mercer | Grappling Hook | Leather Gloves | Right Handed | Bronze Helmet | Bright Lights |
| Lily Bennett | Machete | Decoder Ring | Right Handed | Leather Cap | Loud Whistles |
| Max Sterling | Grappling Hook | Parachute | Right Handed | Bronze Helmet | Bright Lights |
| Isla Vance | Grappling Hook | Leather Gloves | Left Handed | Bronze Helmet | Loud Whistles |
| Noah Finch | Pocket Compass | Decoder Ring | Right Handed | Leather Cap | Loud Whistles |
| Ethan Cole | Grappling Hook | Decoder Ring | Left Handed | Leather Cap | Citrus Juice |
Clue 1
Addition
We gathered all the supply crates recovered from the jungle trail to total up our remaining expedition 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
7374
9374
6092
5100
2807
6356
4641
T
7374
6092
4888
3851
5993
4641
6092
5100
7994
4641
T
7374
4888
5100
6092
2807
5993
6092
6982
4641
5993
6092
3851
3851
7210
7994
6379
3375 + 3999 =T
4167 + 2189 =B
1655 + 2196 =R
2247 + 2853 =S
2564 + 3429 =D
3097 + 1791 =U
6397 + 2977 =H
1962 + 4130 =E
2769 + 5225 =N
1716 + 1091 =A
2877 + 4105 =C
1952 + 2689 =O
2016 + 4363 =G
4653 + 2557 =I
0/14 letters found
Clue 2
Multiplication facts (1-12)
To calculate the grid area around the ancient temple, we multiplied the survey rows by the sector lengths.
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
60
25
63
42
45
21
15
30
30
25
35
50
T
60
25
63
54
21
35
35
15
50
45
30
21
49
48
25
T
60
25
45
5
56
63
56
10 × 6 =T
6 × 7 =M
9 × 5 =A
7 × 9 =E
5 × 3 =K
3 × 7 =R
6 × 5 =S
8 × 7 =D
1 × 5 =N
5 × 10 =W
4 × 12 =G
5 × 5 =H
7 × 7 =I
6 × 9 =C
7 × 5 =O
0/15 letters found
Clue 3
Rounding
The expedition's altimeter readout only displays values rounded to the nearest hundred meters.
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
430
1700
230
7000
300
9000
50
230
7000
70
300
290
290
T
430
1100
30
30
230
50
370
700
370
7000
9000
3000
1700
T
430
170
9000
3000
1700
T
430
290
Round 433 to the nearest tenT
Round 695 to the nearest hundredY
Round 229 to the nearest tenE
Round 173 to the nearest tenL
Round 53 to the nearest tenD
Round 1,051 to the nearest hundredO
Round 2,618 to the nearest thousandG
Round 1,707 to the nearest hundredH
Round 6,776 to the nearest thousandR
Round 9,276 to the nearest thousandI
Round 29 to the nearest tenP
Round 291 to the nearest tenS
Round 322 to the nearest hundredA
Round 66 to the nearest tenW
Round 373 to the nearest tenB
0/15 letters found
Clue 4
Word problems
We analyzed the field notes to solve word problems about travel times and resource consumption across camps.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
B
62
61
44
27
82
58
35
58
L
M
58
T
Expedition Leader found 57 expedition journals yesterday and 5 more today. How many expedition journals in all?B
There were 88 climbing ropes. 27 were used up. How many climbing ropes are left?R
Expedition Leader lined up 5 rows of 7 climbing ropes. How many climbing ropes in all?H
Expedition Leader lined up 9 rows of 3 climbing ropes. How many climbing ropes in all?N
Expedition Leader found 10 compasses yesterday and 34 more today. How many compasses in all?O
Expedition Leader found 16 field lanterns yesterday and 42 more today. How many field lanterns in all?E
There were 102 field lanterns. 20 were used up. How many field lanterns are left?Z
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
To divide the recovered idol fragments equally among the research teams, we calculated exact distribution ratios.
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
56 ÷ 7 = ?
24 ÷ 6 = ?
33 ÷ 3 = ?
48 ÷ 8 = ?
70 ÷ 7 = ?
12 ÷ 4 = ?
49 ÷ 7 = ?
24 ÷ 12 = ?
8 ÷ 8 = ?
55 ÷ 11 = ?
132 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain vanished into the jungle using a smoke bomb, then cracked the ancient stone locks with a decoder ring.
2.The villain swung across the chasm with a grappling hook, then scaled the slippery temple wall with climbing spikes.
3.The villain cleared a hidden path with a machete, then snuck through the ruined vaults with night vision.
4.The villain swung across the chasm with a grappling hook, then escaped off the cliff using a parachute.
5.The villain navigated the dense brush with a pocket compass, then cracked the ancient stone locks with a decoder ring.
6.The villain signaled accomplices with a signal flare, then snuck through the ruined vaults with night vision.
7.The villain signaled accomplices with a signal flare, then cracked the ancient stone locks with a decoder ring.
8.The villain signaled accomplices with a signal flare, then scaled the slippery temple wall with climbing spikes.
9.The villain swung across the chasm with a grappling hook, then stole the golden idol while wearing leather gloves.
10.The villain vanished into the jungle using a smoke bomb, then stole the golden idol while wearing leather gloves.
11.The villain signaled accomplices with a signal flare, then escaped off the cliff using a parachute.
12.The villain vanished into the jungle using a smoke bomb, then escaped off the cliff using a parachute.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Lost Temple Sabotage
Culprit: Sam Mercer (Grappling Hook · Leather Gloves · Right Handed · Bronze Helmet · Bright Lights)
- Clue 1 (Addition): "THE SABOTEUR DOES NOT USE A DECODER RING"3375 + 3999 = 7374 (T) · 4167 + 2189 = 6356 (B) · 1655 + 2196 = 3851 (R) · 2247 + 2853 = 5100 (S) · 2564 + 3429 = 5993 (D) · 3097 + 1791 = 4888 (U) · 6397 + 2977 = 9374 (H) · 1962 + 4130 = 6092 (E) · 2769 + 5225 = 7994 (N) · 1716 + 1091 = 2807 (A) · 2877 + 4105 = 6982 (C) · 1952 + 2689 = 4641 (O) · 2016 + 4363 = 6379 (G) · 4653 + 2557 = 7210 (I)
- Clue 2 (Multiplication facts (1-12)): "THE MARKS SHOW THE CROOK WAS RIGHT HANDED"10 × 6 = 60 (T) · 6 × 7 = 42 (M) · 9 × 5 = 45 (A) · 7 × 9 = 63 (E) · 5 × 3 = 15 (K) · 3 × 7 = 21 (R) · 6 × 5 = 30 (S) · 8 × 7 = 56 (D) · 1 × 5 = 5 (N) · 5 × 10 = 50 (W) · 4 × 12 = 48 (G) · 5 × 5 = 25 (H) · 7 × 7 = 49 (I) · 6 × 9 = 54 (C) · 7 × 5 = 35 (O)
- Clue 3 (Rounding): "THE RAIDER WAS STOPPED BY BRIGHT LIGHTS"Round 433 to the nearest ten = 430 (T) · Round 695 to the nearest hundred = 700 (Y) · Round 229 to the nearest ten = 230 (E) · Round 173 to the nearest ten = 170 (L) · Round 53 to the nearest ten = 50 (D) · Round 1,051 to the nearest hundred = 1100 (O) · Round 2,618 to the nearest thousand = 3000 (G) · Round 1,707 to the nearest hundred = 1700 (H) · Round 6,776 to the nearest thousand = 7000 (R) · Round 9,276 to the nearest thousand = 9000 (I) · Round 29 to the nearest ten = 30 (P) · Round 291 to the nearest ten = 290 (S) · Round 322 to the nearest hundred = 300 (A) · Round 66 to the nearest ten = 70 (W) · Round 373 to the nearest ten = 370 (B)
- Clue 4 (Word problems): "BRONZE HELMET"Expedition Leader found 57 expedition journals yesterday and 5 more today. How many expedition journals in all? = 62 (B) · There were 88 climbing ropes. 27 were used up. How many climbing ropes are left? = 61 (R) · Expedition Leader lined up 5 rows of 7 climbing ropes. How many climbing ropes in all? = 35 (H) · Expedition Leader lined up 9 rows of 3 climbing ropes. How many climbing ropes in all? = 27 (N) · Expedition Leader found 10 compasses yesterday and 34 more today. How many compasses in all? = 44 (O) · Expedition Leader found 16 field lanterns yesterday and 42 more today. How many field lanterns in all? = 58 (E) · There were 102 field lanterns. 20 were used up. How many field lanterns are left? = 82 (Z)
- Clue 5 (Division facts (1-12)): surviving statement (box 9) → Sam Mercer56 ÷ 7 = 8 · 24 ÷ 6 = 4 · 33 ÷ 3 = 11 · 48 ÷ 8 = 6 · 70 ÷ 7 = 10 · 12 ÷ 4 = 3 · 49 ÷ 7 = 7 · 24 ÷ 12 = 2 · 8 ÷ 8 = 1 · 55 ÷ 11 = 5 · 132 ÷ 11 = 12
About this mystery
- Grade level
- Grade 8 math
- Math topics
- Addition, Multiplication, Rounding, Word problems, Division
- Reading level
- grades 7-9
- Theme
- The Lost Temple Sabotage — set in Mist Valley Jungle Ruins
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects