Grade 3Reading: grades 3-4Place valueRoundingAdditionSubtractionDivision
The Canopy Vault Caper
The Golden Acorn of Destiny is missing from the treehouse vault! The Jungle Scouts need your help to track down the culprit before the great jungle storm begins.
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 | Explorer Gear | Animal Companion | Grip Style | Hat Color | Fear |
|---|---|---|---|---|---|
| Gabe Grove | climbing spikes | pygmy owl | left handed grip | brown safari hat | hates smelly fruit |
| Penny Pod | glide suit | pet parrot | right handed grip | red bandana | scared of spiders |
| Ollie Orchid | glide suit | pocket squirrel | left handed grip | red bandana | scared of spiders |
| Finn Fern | jungle machete | pygmy owl | left handed grip | red bandana | scared of spiders |
| Jack Wilder | grappling hook | pet parrot | left handed grip | red bandana | ticklish toes |
| Annie Wilder | grappling hook | pygmy owl | right handed grip | brown safari hat | hates smelly fruit |
| Daisy Dahlia | laser flashlight | pocket squirrel | left handed grip | green cap | scared of spiders |
| Sammy Sloth | climbing spikes | baby chameleon | left handed grip | red bandana | hates smelly fruit |
| Indiana Jones | grappling hook | pocket squirrel | right handed grip | red bandana | scared of spiders |
| Jane Goodall | jungle machete | pocket squirrel | left handed grip | brown safari hat | scared of spiders |
| Diego Marquez | climbing spikes | pocket squirrel | right handed grip | brown safari hat | ticklish toes |
| Leo Leaf | jungle machete | pygmy owl | left handed grip | brown safari hat | scared of spiders |
| Dora Marquez | jungle machete | helper monkey | left handed grip | brown safari hat | scared of spiders |
| Rusty Ridge | laser flashlight | pet parrot | left handed grip | red bandana | scared of spiders |
| Sallie Spruce | jungle machete | baby chameleon | left handed grip | red bandana | scared of spiders |
| Maya Moss | grappling hook | helper monkey | left handed grip | red bandana | hates smelly fruit |
| Benny Barnacle | climbing spikes | pygmy owl | left handed grip | red bandana | scared of spiders |
| Zoe Zip | grappling hook | helper monkey | right handed grip | brown safari hat | hates smelly fruit |
| Charles Darwin | climbing spikes | baby chameleon | right handed grip | red bandana | scared of spiders |
| Steve Irwin | glide suit | helper monkey | right handed grip | green cap | scared of spiders |
| Toby Twig | jungle machete | baby chameleon | left handed grip | green cap | ticklish toes |
Clue 1
Place value
We found a digit lock on the vault door. The glowing lights show numbers in the hundreds place.
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
100
80
40
T
100
80
1000
40
50
800
10
40
200
3000
10
T
100
80
500
70
40
500
200
600
8000
1000
6000
6000
40
7000
What is the value of the 1 in 2,145?T
What is the value of the 7 in 572?V
What is the value of the 3 in 23,805?N
What is the value of the 8 in 3,819?D
What is the value of the 5 in 518?A
What is the value of the 8 in 68,347?U
What is the value of the 8 in 1,386?H
What is the value of the 6 in 36,024?R
What is the value of the 2 in 257?S
What is the value of the 5 in 953?F
What is the value of the 1 in 712?O
What is the value of the 4 in 246?E
What is the value of the 6 in 8,670?Q
What is the value of the 1 in 41,403?I
What is the value of the 7 in 7,944?L
0/15 letters found
Clue 2
Rounding
A broken GPS tracker blinks on the floor. It only shows the distance rounded to the nearest ten.
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
4000
800
5000
30
5000
40
T
4000
800
20
8000
7000
5000
7000
T
4000
60
60
30
80
20
700
6000
400
600
5000
700
5000
30
5000
40
T
4000
200
5000
800
300
8000
7000
Round 3,936 to the nearest thousandT
Round 5,484 to the nearest thousandE
Round 6,632 to the nearest thousandD
Round 808 to the nearest hundredH
Round 436 to the nearest hundredS
Round 601 to the nearest hundredW
Round 76 to the nearest tenM
Round 44 to the nearest tenF
Round 218 to the nearest hundredB
Round 61 to the nearest tenO
Round 5,994 to the nearest thousandK
Round 720 to the nearest hundredR
Round 260 to the nearest hundredI
Round 8,165 to the nearest thousandN
Round 16 to the nearest tenA
Round 26 to the nearest tenL
0/16 letters found
Clue 3
Addition
We need to count all the footprint tracks in the mud. Let us add the totals from both paths.
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
471
543
450
452
867
452
760
450
626
T
471
499
405
337
982
499
229
350
405
T
471
735
337
479
724
867
337
552
412
450
452
760
735
227
450
499
263 + 208 =T
247 + 203 =E
254 + 198 =S
239 + 166 =A
262 + 150 =L
213 + 266 =Y
325 + 410 =I
130 + 207 =N
348 + 204 =G
305 + 194 =R
122 + 105 =D
346 + 280 =C
68 + 161 =O
461 + 406 =U
371 + 172 =H
194 + 156 =M
686 + 296 =F
347 + 413 =P
507 + 217 =J
0/19 letters found
Clue 4
Subtraction
The thief dropped some supplies from their pack. We must subtract what remains from the original count.
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
747
235
120
158
811
A
747
130
158
A
747
130
A
747
544
173
235
120
A
747
158
173
427
130
809
216
235
350
624
544
173
120
235
350
116
120
823 - 76 =A
213 - 97 =P
735 - 308 =U
1006 - 195 =B
161 - 31 =N
365 - 245 =E
276 - 118 =D
615 - 380 =R
295 - 122 =H
1155 - 346 =G
671 - 127 =T
423 - 207 =F
946 - 322 =M
428 - 78 =O
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
We found a box of stolen bananas. If we share them equally among the monkeys we can find the clue.
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
36 ÷ 12 = ?
35 ÷ 7 = ?
50 ÷ 5 = ?
12 ÷ 6 = ?
8 ÷ 1 = ?
24 ÷ 6 = ?
35 ÷ 5 = ?
36 ÷ 4 = ?
12 ÷ 2 = ?
36 ÷ 3 = ?
6 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain soared down using a glide suit, then escaped as their pet parrot squawked.
2.The villain swung in on a grappling hook, then sneaked out with a baby chameleon on their arm.
3.The villain scaled the tree with climbing spikes, then slipped off as their pygmy owl hooted.
4.The villain shined a bright laser flashlight, then ran away with a pocket squirrel on their shoulder.
5.The villain shined a bright laser flashlight, then escaped as their pet parrot squawked.
6.The villain swung in on a grappling hook, then fled while their helper monkey threw fruit.
7.The villain scaled the tree with climbing spikes, then ran away with a pocket squirrel on their shoulder.
8.The villain scaled the tree with climbing spikes, then fled while their helper monkey threw fruit.
9.The villain swung in on a grappling hook, then slipped off as their pygmy owl hooted.
10.The villain chopped vines with a jungle machete, then slipped off as their pygmy owl hooted.
11.The villain chopped vines with a jungle machete, then sneaked out with a baby chameleon on their arm.
12.The villain shined a bright laser flashlight, then fled while their helper monkey threw fruit.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Canopy Vault Caper
Culprit: Sallie Spruce (jungle machete · baby chameleon · left handed grip · red bandana · scared of spiders)
- Clue 1 (Place value): "THE THIEF DOES NOT HAVE A SQUIRREL"What is the value of the 1 in 2,145? = 100 (T) · What is the value of the 7 in 572? = 70 (V) · What is the value of the 3 in 23,805? = 3000 (N) · What is the value of the 8 in 3,819? = 800 (D) · What is the value of the 5 in 518? = 500 (A) · What is the value of the 8 in 68,347? = 8000 (U) · What is the value of the 8 in 1,386? = 80 (H) · What is the value of the 6 in 36,024? = 6000 (R) · What is the value of the 2 in 257? = 200 (S) · What is the value of the 5 in 953? = 50 (F) · What is the value of the 1 in 712? = 10 (O) · What is the value of the 4 in 246? = 40 (E) · What is the value of the 6 in 8,670? = 600 (Q) · What is the value of the 1 in 41,403? = 1000 (I) · What is the value of the 7 in 7,944? = 7000 (L)
- Clue 2 (Rounding): "THE LEFT HANDED TOOL MARKS WERE LEFT BEHIND"Round 3,936 to the nearest thousand = 4000 (T) · Round 5,484 to the nearest thousand = 5000 (E) · Round 6,632 to the nearest thousand = 7000 (D) · Round 808 to the nearest hundred = 800 (H) · Round 436 to the nearest hundred = 400 (S) · Round 601 to the nearest hundred = 600 (W) · Round 76 to the nearest ten = 80 (M) · Round 44 to the nearest ten = 40 (F) · Round 218 to the nearest hundred = 200 (B) · Round 61 to the nearest ten = 60 (O) · Round 5,994 to the nearest thousand = 6000 (K) · Round 720 to the nearest hundred = 700 (R) · Round 260 to the nearest hundred = 300 (I) · Round 8,165 to the nearest thousand = 8000 (N) · Round 16 to the nearest ten = 20 (A) · Round 26 to the nearest ten = 30 (L)
- Clue 3 (Addition): "THE SUSPECT RAN FROM A TINY JUNGLE SPIDER"263 + 208 = 471 (T) · 247 + 203 = 450 (E) · 254 + 198 = 452 (S) · 239 + 166 = 405 (A) · 262 + 150 = 412 (L) · 213 + 266 = 479 (Y) · 325 + 410 = 735 (I) · 130 + 207 = 337 (N) · 348 + 204 = 552 (G) · 305 + 194 = 499 (R) · 122 + 105 = 227 (D) · 346 + 280 = 626 (C) · 68 + 161 = 229 (O) · 461 + 406 = 867 (U) · 371 + 172 = 543 (H) · 194 + 156 = 350 (M) · 686 + 296 = 982 (F) · 347 + 413 = 760 (P) · 507 + 217 = 724 (J)
- Clue 4 (Subtraction): "A RED BANDANA THREAD HUNG FROM THE ROPE"823 - 76 = 747 (A) · 213 - 97 = 116 (P) · 735 - 308 = 427 (U) · 1006 - 195 = 811 (B) · 161 - 31 = 130 (N) · 365 - 245 = 120 (E) · 276 - 118 = 158 (D) · 615 - 380 = 235 (R) · 295 - 122 = 173 (H) · 1155 - 346 = 809 (G) · 671 - 127 = 544 (T) · 423 - 207 = 216 (F) · 946 - 322 = 624 (M) · 428 - 78 = 350 (O)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Sallie Spruce36 ÷ 12 = 3 · 35 ÷ 7 = 5 · 50 ÷ 5 = 10 · 12 ÷ 6 = 2 · 8 ÷ 1 = 8 · 24 ÷ 6 = 4 · 35 ÷ 5 = 7 · 36 ÷ 4 = 9 · 12 ÷ 2 = 6 · 36 ÷ 3 = 12 · 6 ÷ 6 = 1
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Place value, Rounding, Addition, Subtraction, Division
- Reading level
- grades 3-4
- Theme
- The Canopy Vault Caper — set in The Whispering Canopy
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects