Grade 4Reading: grades 3-4Place valueAdditionSubtractionMulti-step word problemsDivision
The Mystery of Cloud Peak
The golden compass of Pine Valley has gone missing from the ranger station. Someone sneaked into headquarters during the evening trail check. Solve the math clues to figure out who took the compass.
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 | Specialist Gear | Gadget Tool | Dominant Hand | Hair Style | Trail Weakness |
|---|---|---|---|---|---|
| Milo Branch | Glider Wings | Laser Pen | Right-handed | Braided hair | Whistle blast |
| Ian Summit | Glider Wings | Map Scanner | Right-handed | Curly hair | Compass spin |
| Cody Ridge | Glider Wings | Night Goggles | Left-handed | Braided hair | Flashlight shine |
| Julia Creek | Grappling Hook | Map Scanner | Left-handed | Curly hair | Whistle blast |
| Tina Valley | Flash Powder | Night Goggles | Right-handed | Spiky hair | Compass spin |
| Owen Field | Glider Wings | Map Scanner | Left-handed | Spiky hair | Compass spin |
| Wyatt Trail | Climbing Claws | Map Scanner | Left-handed | Curly hair | Compass spin |
| Ulysses Rock | Smoke Pellets | Signal Horn | Left-handed | Spiky hair | Compass spin |
| Bella Forest | Grappling Hook | Laser Pen | Left-handed | Spiky hair | Compass spin |
| Sam Timber | Grappling Hook | Map Scanner | Left-handed | Spiky hair | Compass spin |
| Zoe Grove | Glider Wings | Night Goggles | Right-handed | Curly hair | Compass spin |
| Alex River | Climbing Claws | Track Finder | Left-handed | Braided hair | Flashlight shine |
| Riley Peak | Glider Wings | Track Finder | Left-handed | Braided hair | Compass spin |
| Nora Cliff | Smoke Pellets | Track Finder | Right-handed | Curly hair | Whistle blast |
| Fiona Frost | Glider Wings | Night Goggles | Left-handed | Braided hair | Compass spin |
| Laura Meadow | Glider Wings | Laser Pen | Left-handed | Spiky hair | Whistle blast |
| Vera Stream | Grappling Hook | Signal Horn | Right-handed | Curly hair | Flashlight shine |
| Kevin Pines | Smoke Pellets | Laser Pen | Left-handed | Spiky hair | Compass spin |
| Ethan Birch | Flash Powder | Map Scanner | Left-handed | Curly hair | Compass spin |
| Hannah Lake | Climbing Claws | Signal Horn | Right-handed | Braided hair | Flashlight shine |
| Quinn Marsh | Grappling Hook | Track Finder | Left-handed | Curly hair | Flashlight shine |
Clue 1
Place value
Ranger Rick inspected the electronic lock where place value digits revealed a clue about the thief.
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
9000
10
100
600
10
3000
7000
8000
60
8000
600
90
T
70
20
100
10
3000
100
60
700
600
3000
500
9000
90
6000
600
What is the value of the 7 in 672?T
What is the value of the 3 in 3,266?A
What is the value of the 9 in 2,397?O
What is the value of the 1 in 126?S
What is the value of the 1 in 715?E
What is the value of the 5 in 508?L
What is the value of the 6 in 26,240?R
What is the value of the 2 in 420?U
What is the value of the 9 in 9,067?H
What is the value of the 7 in 3,700?G
What is the value of the 7 in 7,099?K
What is the value of the 6 in 1,680?N
What is the value of the 6 in 1,565?I
What is the value of the 8 in 98,422?D
0/14 letters found
Clue 2
Addition
Ranger Rick added up all the tracks found near the supply shed to learn more.
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
5563
4616
8302
6057
2787
6057
8131
8302
5354
T
5563
2787
6057
8302
9169
T
5563
4616
8302
9684
9767
5302
8302
6040
T
5563
4616
7547
2818
9169
1970 + 3593 =T
3348 + 5821 =D
2211 + 3846 =S
5874 + 3893 =R
3557 + 4574 =P
3664 + 1638 =L
1436 + 3180 =H
2266 + 3774 =F
1553 + 1234 =U
3836 + 5848 =I
2784 + 4763 =A
1266 + 1552 =N
3259 + 5043 =E
2354 + 3000 =C
0/14 letters found
Clue 3
Subtraction
Ranger Rick subtracted the remaining supplies from total inventory to find a hidden detail.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
4134
8650
2083
1630
8425
8425
1630
8425
2615
5433
5759
5644
2083
A
4134
8650
8650
5433
5759
8425
2522
8503
8650
3848
5313
3556
2978
3848
5644
5637 - 1503 =A
9758 - 4114 =M
12623 - 4198 =N
6379 - 2531 =E
8502 - 2743 =O
8926 - 3613 =D
2749 - 1119 =I
3305 - 783 =F
4186 - 630 =T
6851 - 4236 =G
4324 - 1346 =H
8043 - 2610 =C
5015 - 2932 =P
10475 - 1825 =S
12443 - 3940 =U
0/15 letters found
Clue 4
Multi-step word problems
Ranger Rick solved a multi step puzzle about trail markers 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.
S
11
47
87
81
80
6
57
87
R
Ranger Rick collected 12 climbing ropes in the morning and 10 climbing ropes in the afternoon, then split them equally among 2 Pine Valley Explorers. How many climbing ropes did each get?S
There were 187 canteen cups in all. 16 canteen cups were set aside. The rest were shared equally among 3 Pine Valley Explorers. How many canteen cups did each get?A
Ranger Rick filled 5 boxes with 6 trail badges each, then found 17 more trail badges. How many trail badges are there in all?P
Ranger Rick collected 9 compasses in the morning and 27 compasses in the afternoon, then split them equally among 6 Pine Valley Explorers. How many compasses did each get?H
Ranger Rick collected 110 lantern bulbs in the morning and 210 lantern bulbs in the afternoon, then split them equally among 4 Pine Valley Explorers. How many lantern bulbs did each get?Y
Ranger Rick earned 4 trail badges in each of 6 rounds, plus 67 bonus trail badges. Then 4 trail badges were lost. How many trail badges are left?I
There were 671 lantern bulbs in all. 23 lantern bulbs were set aside. The rest were shared equally among 8 Pine Valley Explorers. How many lantern bulbs did each get?K
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
Ranger Rick divided the recovered camp tokens into equal groups to reveal the final lead.
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
16 ÷ 8 = ?
48 ÷ 6 = ?
25 ÷ 5 = ?
81 ÷ 9 = ?
60 ÷ 10 = ?
70 ÷ 10 = ?
22 ÷ 2 = ?
24 ÷ 6 = ?
6 ÷ 2 = ?
60 ÷ 6 = ?
5 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain vanished behind smoke pellets, then scanned the area with a map scanner.
2.The villain vanished behind smoke pellets, then cut the ropes with a laser pen.
3.The villain scaled the cliff with climbing claws, then alerted the team with a signal horn.
4.The villain vanished behind smoke pellets, then followed the path with a track finder.
5.The villain swung past using a grappling hook, then scanned the area with a map scanner.
6.The villain blinded the guard with flash powder, then scanned the area with a map scanner.
7.The villain blinded the guard with flash powder, then cut the ropes with a laser pen.
8.The villain swung past using a grappling hook, then cut the ropes with a laser pen.
9.The villain swung past using a grappling hook, then spotted the target using night goggles.
10.The villain soared down with glider wings, then followed the path with a track finder.
11.The villain swung past using a grappling hook, then alerted the team with a signal horn.
12.The villain soared down with glider wings, then scanned the area with a map scanner.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of Cloud Peak
Culprit: Owen Field (Glider Wings · Map Scanner · Left-handed · Spiky hair · Compass spin)
- Clue 1 (Place value): "THE SNEAK DID NOT USE A SIGNAL HORN"What is the value of the 7 in 672? = 70 (T) · What is the value of the 3 in 3,266? = 3000 (A) · What is the value of the 9 in 2,397? = 90 (O) · What is the value of the 1 in 126? = 100 (S) · What is the value of the 1 in 715? = 10 (E) · What is the value of the 5 in 508? = 500 (L) · What is the value of the 6 in 26,240? = 6000 (R) · What is the value of the 2 in 420? = 20 (U) · What is the value of the 9 in 9,067? = 9000 (H) · What is the value of the 7 in 3,700? = 700 (G) · What is the value of the 7 in 7,099? = 7000 (K) · What is the value of the 6 in 1,680? = 600 (N) · What is the value of the 6 in 1,565? = 60 (I) · What is the value of the 8 in 98,422? = 8000 (D)
- Clue 2 (Addition): "THE SUSPECT USED THEIR LEFT HAND"1970 + 3593 = 5563 (T) · 3348 + 5821 = 9169 (D) · 2211 + 3846 = 6057 (S) · 5874 + 3893 = 9767 (R) · 3557 + 4574 = 8131 (P) · 3664 + 1638 = 5302 (L) · 1436 + 3180 = 4616 (H) · 2266 + 3774 = 6040 (F) · 1553 + 1234 = 2787 (U) · 3836 + 5848 = 9684 (I) · 2784 + 4763 = 7547 (A) · 1266 + 1552 = 2818 (N) · 3259 + 5043 = 8302 (E) · 2354 + 3000 = 5354 (C)
- Clue 3 (Subtraction): "A SPINNING COMPASS CONFUSED THEM"5637 - 1503 = 4134 (A) · 9758 - 4114 = 5644 (M) · 12623 - 4198 = 8425 (N) · 6379 - 2531 = 3848 (E) · 8502 - 2743 = 5759 (O) · 8926 - 3613 = 5313 (D) · 2749 - 1119 = 1630 (I) · 3305 - 783 = 2522 (F) · 4186 - 630 = 3556 (T) · 6851 - 4236 = 2615 (G) · 4324 - 1346 = 2978 (H) · 8043 - 2610 = 5433 (C) · 5015 - 2932 = 2083 (P) · 10475 - 1825 = 8650 (S) · 12443 - 3940 = 8503 (U)
- Clue 4 (Multi-step word problems): "SPIKY HAIR"Ranger Rick collected 12 climbing ropes in the morning and 10 climbing ropes in the afternoon, then split them equally among 2 Pine Valley Explorers. How many climbing ropes did each get? = 11 (S) · There were 187 canteen cups in all. 16 canteen cups were set aside. The rest were shared equally among 3 Pine Valley Explorers. How many canteen cups did each get? = 57 (A) · Ranger Rick filled 5 boxes with 6 trail badges each, then found 17 more trail badges. How many trail badges are there in all? = 47 (P) · Ranger Rick collected 9 compasses in the morning and 27 compasses in the afternoon, then split them equally among 6 Pine Valley Explorers. How many compasses did each get? = 6 (H) · Ranger Rick collected 110 lantern bulbs in the morning and 210 lantern bulbs in the afternoon, then split them equally among 4 Pine Valley Explorers. How many lantern bulbs did each get? = 80 (Y) · Ranger Rick earned 4 trail badges in each of 6 rounds, plus 67 bonus trail badges. Then 4 trail badges were lost. How many trail badges are left? = 87 (I) · There were 671 lantern bulbs in all. 23 lantern bulbs were set aside. The rest were shared equally among 8 Pine Valley Explorers. How many lantern bulbs did each get? = 81 (K)
- Clue 5 (Division facts (1-12)): surviving statement (box 12) → Owen Field16 ÷ 8 = 2 · 48 ÷ 6 = 8 · 25 ÷ 5 = 5 · 81 ÷ 9 = 9 · 60 ÷ 10 = 6 · 70 ÷ 10 = 7 · 22 ÷ 2 = 11 · 24 ÷ 6 = 4 · 6 ÷ 2 = 3 · 60 ÷ 6 = 10 · 5 ÷ 5 = 1
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Addition, Subtraction, Multi-step word problems, Division
- Reading level
- grades 3-4
- Theme
- The Mystery of Cloud Peak — set in Pine Valley Wilderness Reserve
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects