Grade 5Reading: grades 3-4Fractions of a numberAdditionSubtractionSkip counting
The Canopy Kingdom Mystery
The legendary Golden Acorn has been snatched from the Counselor's cabin! The Treehouse Thief is trying to escape through the rope bridges. Solve the puzzles to find who did it!
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 | climbing tool | adventure gear | dominant hand | headwear | scared by |
|---|---|---|---|---|---|
| Noah | climbing boots | canteen | left handed | blue cap | whistle blast |
| Max | rope ladder | climbing harness | left handed | red bandana | whistle blast |
| Pete | grappling hook | spyglass | right handed | red bandana | sparklers |
| Ivy | slingshot | climbing harness | right handed | red bandana | water balloons |
| Zoe | glider wings | climbing harness | left handed | blue cap | sparklers |
| Mia | climbing boots | canteen | left handed | blue cap | sparklers |
| Jake | climbing boots | brass compass | left handed | red bandana | sparklers |
| Kate | glider wings | spyglass | left handed | red bandana | sparklers |
| Danny | slingshot | canteen | left handed | blue cap | sparklers |
| Finn | climbing boots | climbing harness | left handed | blue cap | water balloons |
| Grace | slingshot | climbing harness | right handed | blue cap | water balloons |
| Ruby | climbing boots | map scroll | right handed | blue cap | sparklers |
| Ben | slingshot | canteen | right handed | green helmet | water balloons |
| Quinn | slingshot | map scroll | left handed | blue cap | sparklers |
| Ella | grappling hook | map scroll | right handed | green helmet | whistle blast |
| Jack | slingshot | map scroll | left handed | red bandana | water balloons |
| Charlie | glider wings | canteen | right handed | green helmet | water balloons |
| Leo | rope ladder | climbing harness | left handed | blue cap | sparklers |
| Olivia | slingshot | climbing harness | right handed | blue cap | sparklers |
| Toby | rope ladder | canteen | left handed | green helmet | water balloons |
| Sam | rope ladder | map scroll | left handed | blue cap | sparklers |
Clue 1
Fractions of a number
We found a torn list of the thief's gear. Only a small fraction of the list is readable, but it shows us what they did not bring.
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
27
9
33
T
27
9
2
33
11
6
18
33
7
14
18
T
27
8
10
19
19
39
10
8
10
14
T
27
33
33
14
3/5 of 45 =T
3/6 of 22 =F
2/6 of 6 =I
1/2 of 20 =A
2/4 of 16 =C
1/8 of 72 =H
4/8 of 38 =R
1/6 of 108 =O
2/8 of 56 =N
1/8 of 48 =D
3/4 of 52 =Y
3/5 of 55 =E
2/8 of 28 =S
0/13 letters found
Clue 2
Addition
To find the thief's escape path, we must add up all the footprints left on the muddy trail.
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
5507
6210
9863
T
5507
6210
7101
9863
5022
6210
9863
9186
3529
T
5507
6210
9863
8839
5207
2147
9863
7101
2371
T
5507
6210
9863
7101
8839
9186
9863
5022
T
5507
6210
2426
2371
3529
2095 + 3412 =T
960 + 1466 =A
2467 + 1062 =D
3970 + 5216 =L
3431 + 5408 =R
2730 + 4371 =I
1016 + 1131 =P
1750 + 3272 =F
6894 + 2969 =E
1545 + 826 =N
2849 + 3361 =H
1783 + 3424 =O
0/12 letters found
Clue 3
Subtraction
The thief dropped some stolen supplies along the way. Let us subtract what we found from the total to see what they have 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
1030
2098
6589
T
1030
2098
7519
6589
5800
5834
2098
1273
8110
5100
6929
8253
5169
8253
3101
5800
1273
2045
4158
6900
1273
7519
4867
2098
T
1030
5834
7656
8253
1273
6929
5305
6589
1273
5834
4768 - 3738 =T
10268 - 3368 =B
7206 - 277 =K
6500 - 700 =F
10110 - 2454 =P
8584 - 2750 =S
10529 - 2276 =A
11482 - 4893 =E
4256 - 1155 =Y
5956 - 4683 =R
4927 - 2882 =O
6744 - 1644 =N
10915 - 2805 =U
4358 - 2260 =H
10528 - 3009 =I
5637 - 332 =L
5180 - 11 =W
7700 - 3542 =M
8779 - 3912 =G
0/19 letters found
Clue 4
Skip counting
The thief escaped by jumping across the wood steps. If we count the steps by threes, we can find where they landed.
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
70
24
22
12
60
18
A
70
20
35
A
70
25
22
60
100
40
27
140
40
30
60
65
6
20
22
6
140
60
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80A
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24P
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30B
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45W
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160N
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33O
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16U
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26L
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75Z
Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50H
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22C
Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120F
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35S
0/16 letters found
Clue 5
Fractions of a number — the last clue
The camp kitchen was raided for snacks. A fraction of the juice boxes is missing, showing us which path the thief took.
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
2/8 of 16 = ?
1/8 of 88 = ?
8/10 of 10 = ?
1/10 of 50 = ?
2/5 of 25 = ?
2/10 of 30 = ?
2/10 of 35 = ?
1/5 of 15 = ?
1/3 of 36 = ?
4/8 of 4 = ?
9/10 of 10 = ?
Step 2 — cross out the sentence with each answer
1.The villain climbs a rope ladder, then unrolls a map scroll.
2.The villain shoots a slingshot, then tightens a climbing harness.
3.The villain leaps in climbing boots, then checks their brass compass.
4.The villain shoots a slingshot, then unrolls a map scroll.
5.The villain shoots a slingshot, then takes a sip from a canteen.
6.The villain swings on a grappling hook, then checks their brass compass.
7.The villain climbs a rope ladder, then peers through a spyglass.
8.The villain climbs a rope ladder, then tightens a climbing harness.
9.The villain swings on a grappling hook, then tightens a climbing harness.
10.The villain sails with glider wings, then unrolls a map scroll.
11.The villain sails with glider wings, then tightens a climbing harness.
12.The villain sails with glider wings, then checks their brass compass.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Canopy Kingdom Mystery
Culprit: Sam (rope ladder · map scroll · left handed · blue cap · sparklers)
- Clue 1 (Fractions of a number): "THE THIEF DOES NOT CARRY A CANTEEN"3/5 of 45 = 27 (T) · 3/6 of 22 = 11 (F) · 2/6 of 6 = 2 (I) · 1/2 of 20 = 10 (A) · 2/4 of 16 = 8 (C) · 1/8 of 72 = 9 (H) · 4/8 of 38 = 19 (R) · 1/6 of 108 = 18 (O) · 2/8 of 56 = 14 (N) · 1/8 of 48 = 6 (D) · 3/4 of 52 = 39 (Y) · 3/5 of 55 = 33 (E) · 2/8 of 28 = 7 (S)
- Clue 2 (Addition): "THE THIEF HELD THE ROPE IN THEIR LEFT HAND"2095 + 3412 = 5507 (T) · 960 + 1466 = 2426 (A) · 2467 + 1062 = 3529 (D) · 3970 + 5216 = 9186 (L) · 3431 + 5408 = 8839 (R) · 2730 + 4371 = 7101 (I) · 1016 + 1131 = 2147 (P) · 1750 + 3272 = 5022 (F) · 6894 + 2969 = 9863 (E) · 1545 + 826 = 2371 (N) · 2849 + 3361 = 6210 (H) · 1783 + 3424 = 5207 (O)
- Clue 3 (Subtraction): "THE THIEF SHRUNK AWAY FROM BRIGHT SPARKLERS"4768 - 3738 = 1030 (T) · 10268 - 3368 = 6900 (B) · 7206 - 277 = 6929 (K) · 6500 - 700 = 5800 (F) · 10110 - 2454 = 7656 (P) · 8584 - 2750 = 5834 (S) · 10529 - 2276 = 8253 (A) · 11482 - 4893 = 6589 (E) · 4256 - 1155 = 3101 (Y) · 5956 - 4683 = 1273 (R) · 4927 - 2882 = 2045 (O) · 6744 - 1644 = 5100 (N) · 10915 - 2805 = 8110 (U) · 4358 - 2260 = 2098 (H) · 10528 - 3009 = 7519 (I) · 5637 - 332 = 5305 (L) · 5180 - 11 = 5169 (W) · 7700 - 3542 = 4158 (M) · 8779 - 3912 = 4867 (G)
- Clue 4 (Skip counting): "A BLUE CAP WAS LEFT ON THE ZIPLINE"Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (A) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, ___, 22, 24 = 20 (P) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (B) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (W) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (N) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (O) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (U) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (L) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (Z) · Skip-count by 10s. Fill the blank: 10, 20, ___, 40, 50 = 30 (H) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22 = 18 (C) · Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60 = 40 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (F) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (S)
- Clue 5 (Fractions of a number): surviving statement (box 1) → Sam2/8 of 16 = 4 · 1/8 of 88 = 11 · 8/10 of 10 = 8 · 1/10 of 50 = 5 · 2/5 of 25 = 10 · 2/10 of 30 = 6 · 2/10 of 35 = 7 · 1/5 of 15 = 3 · 1/3 of 36 = 12 · 4/8 of 4 = 2 · 9/10 of 10 = 9
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Fractions of a number, Addition, Subtraction, Skip counting
- Reading level
- grades 3-4
- Theme
- The Canopy Kingdom Mystery — set in Pinecone Island Camp
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects