Grade 7Reading: grades 5-6IntegersWord problemsMulti-step word problemsPercentagesMissing addends
The Case of the Missing Golden Sun Stone
During a midnight expedition into the ancient Sunken Canopy ruins, someone bypassed the stone vault traps and stole the Golden Sun Stone. The Head Archaeologist needs your team to analyze field logs, read the trail clues, and identify 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 | Primary Gear | Stolen Artifact | Dominant Hand | Hairstyle | Defense Weakness |
|---|---|---|---|---|---|
| Hazel Thorne | Compass Mask | Opal Charm | Right Handed | Curly Afro | Bright Flash |
| Silas Knight | Rope Dart | Amber Ring | Right Handed | Spiky Buzzcut | Bright Flash |
| Julian Finch | Rope Dart | Amber Ring | Right Handed | Braided Ponytail | Loud Whistle |
| Elena Cruz | Smoke Bomb | Amber Ring | Left Handed | Spiky Buzzcut | Loud Whistle |
| Nora Drake | Torch Shield | Ruby Band | Right Handed | Braided Ponytail | Loud Whistle |
| Xavier Flint | Rope Dart | Jade Medallion | Left Handed | Curly Afro | Bright Flash |
| Ezra Vance | Torch Shield | Pearl Pendant | Right Handed | Spiky Buzzcut | Loud Whistle |
| Gemma Croft | Grappling Hook | Opal Charm | Left Handed | Braided Ponytail | Loud Whistle |
| Ivy Montgomery | Smoke Bomb | Pearl Pendant | Left Handed | Braided Ponytail | Cold Splash |
| Oscar Wilder | Grappling Hook | Pearl Pendant | Right Handed | Spiky Buzzcut | Loud Whistle |
| Clara Bishop | Rope Dart | Jade Medallion | Right Handed | Curly Afro | Loud Whistle |
| Jasper Stone | Grappling Hook | Pearl Pendant | Left Handed | Spiky Buzzcut | Bright Flash |
| Carter Hayes | Smoke Bomb | Ruby Band | Right Handed | Spiky Buzzcut | Loud Whistle |
| Leo Sterling | Torch Shield | Pearl Pendant | Left Handed | Braided Ponytail | Loud Whistle |
| Rowan Wells | Torch Shield | Pearl Pendant | Left Handed | Spiky Buzzcut | Bright Flash |
| Maya Rivers | Grappling Hook | Ruby Band | Left Handed | Braided Ponytail | Loud Whistle |
| Chloe Bennett | Smoke Bomb | Pearl Pendant | Right Handed | Spiky Buzzcut | Cold Splash |
| Ruby Rhodes | Torch Shield | Pearl Pendant | Right Handed | Braided Ponytail | Bright Flash |
| Zoe Mercer | Torch Shield | Ruby Band | Right Handed | Spiky Buzzcut | Loud Whistle |
| Gavin Frost | Smoke Bomb | Opal Charm | Left Handed | Braided Ponytail | Bright Flash |
| Felix Archer | Rope Dart | Jade Medallion | Right Handed | Spiky Buzzcut | Loud Whistle |
Clue 1
Integers
To decode the first vault clue, you must calculate supply distributions across the expedition trucks.
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
16
10
9
8
2
24
24
13
2
4
1
23
9
15
4
23
T
16
10
13
8
9
T
16
10
9
19
13
1
9
21
9
1
13
24
24
2
23
4
1 - (-15) =T
12 - (-9) =M
3 - (-1) =N
3 - (-7) =H
(-11) + 12 =D
(-8) + 21 =A
(-13) + 15 =I
4 - (-4) =V
18 - (-1) =J
(-13) + 22 =E
(-13) + 36 =O
(-6) + 21 =S
(-8) + 32 =L
0/13 letters found
Clue 2
Word problems
Next, analyze the expedition team's travel times along the muddy jungle trails to trace the thief's escape path.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
R
11
22
110
21
117
21
51
58
D
E
D
Explorer found 2 climbing piton yesterday and 9 more today. How many climbing piton in all?R
There were 115 climbing piton. 5 were used up. How many climbing piton are left?G
Explorer lined up 7 rows of 3 canteen. How many canteen in all?H
There were 98 canteen. 40 were used up. How many canteen are left?N
There were 83 climbing piton. 32 were used up. How many climbing piton are left?A
There were 136 climbing piton. 19 were used up. How many climbing piton are left?T
Explorer lined up 11 rows of 2 expedition crate. How many expedition crate in all?I
0/7 letters found
Clue 3
Multi-step word problems
Deep in the underground cavern network, track the elevation changes from sea level to find hidden markers.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Someonescaredthevillainoffwith .
L
12
74
16
50
61
18
31
S
T
L
12
E
Explorer collected 14 expedition crate in the morning and 10 expedition crate in the afternoon, then split them equally among 2 Exploration Squad. How many expedition crate did each get?L
Explorer earned 6 canteen in each of 2 rounds, plus 30 bonus canteen. Then 11 canteen were lost. How many canteen are left?I
Explorer collected 117 climbing piton in the morning and 31 climbing piton in the afternoon, then split them equally among 2 Exploration Squad. How many climbing piton did each get?O
Explorer filled 3 boxes with 9 expedition crate each, then found 34 more expedition crate. How many expedition crate are there in all?W
Explorer filled 2 boxes with 3 map scroll each, then found 10 more map scroll. How many map scroll are there in all?U
Explorer collected 5 canteen in the morning and 31 canteen in the afternoon, then split them equally among 2 Exploration Squad. How many canteen did each get?H
There were 110 canteen in all. 2 Exploration Squad used 5 canteen each. The other 2 Exploration Squad shared the rest equally. How many canteen did each of the other Exploration Squad get?D
0/7 letters found
Clue 4
Percentages
The ancient wall carvings measure trap power levels in percentages; calculate the missing ratios to unlock 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.
S
47
9
46
20
58
43
17
40
40
45
17
36
35
34
46
51
60
34
S
47
S
47
29
34
15
15
33
27
56
29
37
46
29
33
20% of 235 =S
20% of 85 =U
20% of 300 =W
20% of 75 =G
10% of 360 =T
20% of 200 =Z
20% of 280 =O
20% of 100 =K
5% of 540 =D
50% of 68 =A
25% of 172 =B
10% of 90 =P
10% of 460 =I
5% of 700 =H
20% of 290 =Y
25% of 132 =E
25% of 204 =R
5% of 580 =N
10% of 370 =V
10% of 450 =C
0/20 letters found
Clue 5
Missing addends — the last clue
Finally, balance the pressure plates on the vault floor by finding the missing weights needed to trigger the final secret compartment.
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
19 + ___ = 23
33 + ___ = 38
14 + ___ = 16
10 + ___ = 13
16 + ___ = 26
13 + ___ = 22
40 + ___ = 51
6 + ___ = 12
12 + ___ = 24
37 + ___ = 45
19 + ___ = 20
Step 2 — cross out the sentence with each answer
1.The villain zipped up with a grappling hook, then grabbed the opal charm.
2.The villain guarded with a torch shield, then swiped the pearl pendant.
3.The villain scouted with a compass mask, then swiped the pearl pendant.
4.The villain zipped up with a grappling hook, then swiped the pearl pendant.
5.The villain vanished in a smoke bomb, then snatched the ruby band.
6.The villain swung on a rope dart, then grabbed the opal charm.
7.The villain guarded with a torch shield, then snatched the ruby band.
8.The villain swung on a rope dart, then snatched the ruby band.
9.The villain vanished in a smoke bomb, then pocked the amber ring.
10.The villain swung on a rope dart, then swiped the pearl pendant.
11.The villain swung on a rope dart, then stole the jade medallion.
12.The villain scouted with a compass mask, then grabbed the opal charm.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Golden Sun Stone
Culprit: Zoe Mercer (Torch Shield · Ruby Band · Right Handed · Spiky Buzzcut · Loud Whistle)
- Clue 1 (Integers): "THE VILLAIN DOES NOT HAVE THE JADE MEDALLION"1 - (-15) = 16 (T) · 12 - (-9) = 21 (M) · 3 - (-1) = 4 (N) · 3 - (-7) = 10 (H) · (-11) + 12 = 1 (D) · (-8) + 21 = 13 (A) · (-13) + 15 = 2 (I) · 4 - (-4) = 8 (V) · 18 - (-1) = 19 (J) · (-13) + 22 = 9 (E) · (-13) + 36 = 23 (O) · (-6) + 21 = 15 (S) · (-8) + 32 = 24 (L)
- Clue 2 (Word problems): "RIGHT HANDED"Explorer found 2 climbing piton yesterday and 9 more today. How many climbing piton in all? = 11 (R) · There were 115 climbing piton. 5 were used up. How many climbing piton are left? = 110 (G) · Explorer lined up 7 rows of 3 canteen. How many canteen in all? = 21 (H) · There were 98 canteen. 40 were used up. How many canteen are left? = 58 (N) · There were 83 climbing piton. 32 were used up. How many climbing piton are left? = 51 (A) · There were 136 climbing piton. 19 were used up. How many climbing piton are left? = 117 (T) · Explorer lined up 11 rows of 2 expedition crate. How many expedition crate in all? = 22 (I)
- Clue 3 (Multi-step word problems): "LOUD WHISTLE"Explorer collected 14 expedition crate in the morning and 10 expedition crate in the afternoon, then split them equally among 2 Exploration Squad. How many expedition crate did each get? = 12 (L) · Explorer earned 6 canteen in each of 2 rounds, plus 30 bonus canteen. Then 11 canteen were lost. How many canteen are left? = 31 (I) · Explorer collected 117 climbing piton in the morning and 31 climbing piton in the afternoon, then split them equally among 2 Exploration Squad. How many climbing piton did each get? = 74 (O) · Explorer filled 3 boxes with 9 expedition crate each, then found 34 more expedition crate. How many expedition crate are there in all? = 61 (W) · Explorer filled 2 boxes with 3 map scroll each, then found 10 more map scroll. How many map scroll are there in all? = 16 (U) · Explorer collected 5 canteen in the morning and 31 canteen in the afternoon, then split them equally among 2 Exploration Squad. How many canteen did each get? = 18 (H) · There were 110 canteen in all. 2 Exploration Squad used 5 canteen each. The other 2 Exploration Squad shared the rest equally. How many canteen did each of the other Exploration Squad get? = 50 (D)
- Clue 4 (Percentages): "SPIKY BUZZCUT HAIR WAS SNAGGED ON VINE"20% of 235 = 47 (S) · 20% of 85 = 17 (U) · 20% of 300 = 60 (W) · 20% of 75 = 15 (G) · 10% of 360 = 36 (T) · 20% of 200 = 40 (Z) · 20% of 280 = 56 (O) · 20% of 100 = 20 (K) · 5% of 540 = 27 (D) · 50% of 68 = 34 (A) · 25% of 172 = 43 (B) · 10% of 90 = 9 (P) · 10% of 460 = 46 (I) · 5% of 700 = 35 (H) · 20% of 290 = 58 (Y) · 25% of 132 = 33 (E) · 25% of 204 = 51 (R) · 5% of 580 = 29 (N) · 10% of 370 = 37 (V) · 10% of 450 = 45 (C)
- Clue 5 (Missing addends): surviving statement (box 7) → Zoe Mercer19 + ___ = 23 = 4 · 33 + ___ = 38 = 5 · 14 + ___ = 16 = 2 · 10 + ___ = 13 = 3 · 16 + ___ = 26 = 10 · 13 + ___ = 22 = 9 · 40 + ___ = 51 = 11 · 6 + ___ = 12 = 6 · 12 + ___ = 24 = 12 · 37 + ___ = 45 = 8 · 19 + ___ = 20 = 1
About this mystery
- Grade level
- Grade 7 math
- Math topics
- Integers, Word problems, Multi-step word problems, Percentages, Missing addends
- Reading level
- grades 5-6
- Theme
- The Case of the Missing Golden Sun Stone — set in The Lost Ruins of Sunken Canopy
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects