Grade 5Reading: grades 1-2SubtractionMultiplicationRoundingAdditionDivision

The Great Treehouse Rescue

Someone took the Golden Compass from the Chief Explorer! We must find the Treehouse Thief. Look for clues along the jungle trail.

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	Jungle Gear	Secret Tool	Watch Wrist	Hair Color	Jungle Fear
Roald	Grappling Hook	Snack Pack	Left Watch	Bright Yellow Hair	Fear Of Frogs
Marco	Binocular Strap	Spy Glass	Right Watch	Deep Black Hair	Fear Of Buzzing Bees
Annie	Map Scroll	Walkie Talkie	Left Watch	Deep Black Hair	Fear Of Spiders
Maya	Flashlight Glow	Walkie Talkie	Right Watch	Deep Black Hair	Fear Of Frogs
Mia	Binocular Strap	Snack Pack	Left Watch	Bright Yellow Hair	Fear Of Spiders
Charles	Binocular Strap	Snack Pack	Left Watch	Bright Red Hair	Fear Of Frogs
Jack	Binocular Strap	Walkie Talkie	Left Watch	Deep Black Hair	Fear Of Frogs
Ben	Flashlight Glow	Glider Wings	Left Watch	Bright Yellow Hair	Fear Of Frogs
Buzz	Binocular Strap	Snack Pack	Left Watch	Deep Black Hair	Fear Of Spiders
Abby	Map Scroll	Spy Glass	Right Watch	Bright Red Hair	Fear Of Spiders
Neil	Grappling Hook	Laser Pointer	Left Watch	Deep Black Hair	Fear Of Spiders
Amelia	Grappling Hook	Snack Pack	Left Watch	Deep Black Hair	Fear Of Frogs
Sally	Map Scroll	Glider Wings	Left Watch	Deep Black Hair	Fear Of Spiders
Indiana	Map Scroll	Walkie Talkie	Right Watch	Bright Red Hair	Fear Of Spiders
Sam	Flashlight Glow	Laser Pointer	Right Watch	Deep Black Hair	Fear Of Frogs
Toby	Grappling Hook	Spy Glass	Right Watch	Bright Red Hair	Fear Of Buzzing Bees
Cody	Map Scroll	Walkie Talkie	Left Watch	Bright Yellow Hair	Fear Of Frogs
Bindi	Map Scroll	Spy Glass	Right Watch	Deep Black Hair	Fear Of Spiders
Ernest	Flashlight Glow	Spy Glass	Left Watch	Bright Red Hair	Fear Of Spiders
Zoe	Binocular Strap	Glider Wings	Left Watch	Bright Red Hair	Fear Of Buzzing Bees
Max	Pocket Compass	Laser Pointer	Left Watch	Deep Black Hair	Fear Of Spiders

Clue 1

Subtraction

Explorer Pip drops some rope coils. Subtract the lost ropes to see what is left. This will open the first chest!

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

1757

5380

8688

5250

8885

8230

3078

8885

1347

8481

3677

8688

3352

1347

3677

1757

5380

3078

5250

8688

5808

8230

8885

8481

8688

8873

1315

8885

1347

5808

3352

2911 - 1154 =T

6063 - 4716 =N

10757 - 1872 =I

9409 - 1179 =L

13473 - 4785 =E

6334 - 2982 =S

8807 - 3427 =H

5559 - 309 =V

9283 - 3475 =G

3590 - 2275 =W

7394 - 3717 =O

5532 - 2454 =A

13085 - 4212 =R

10204 - 1723 =D

0/14 letters found

Clue 2

Multiplication facts (1-12)

Look at these neat rows of pineapples. Let us multiply the rows to count them. A hidden map is inside!

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

144

120

144

1 × 8 =T

12 × 10 =S

2 × 11 =E

9 × 1 =L

1 × 4 =W

9 × 3 =R

8 × 11 =N

5 × 11 =I

12 × 12 =A

12 × 8 =F

1 × 3 =O

7 × 12 =H

8 × 10 =C

0/13 letters found

Clue 3

Rounding

The old radar screen is blurry. It only shows rounded numbers. Round the distance to find the next path.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

500

1700

3700

5000

3700

900

370

5000

170

500

370

900

1700

2900

900

1700

2900

3700

900

170

230

7000

Round 489 to the nearest hundredA

Round 167 to the nearest tenC

Round 1,656 to the nearest hundredT

Round 3,688 to the nearest hundredI

Round 234 to the nearest tenO

Round 366 to the nearest tenR

Round 2,907 to the nearest hundredH

Round 7,187 to the nearest thousandL

Round 93 to the nearest tenY

Round 22 to the nearest tenN

Round 71 to the nearest tenD

Round 5,233 to the nearest thousandS

Round 49 to the nearest tenF

Round 925 to the nearest hundredE

Round 32 to the nearest tenP

0/15 letters found

Clue 4

Addition

We found some shiny gems on the dirt path. Add them all up to see how many we collected.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

2068

5818

8404

3408

7043

5093

8506

3809

8846

9783

7608

3581

8790

9783

9633

2082

3408

5093

5002

8790

5818

3809

2082

9783

5093

7608

8790

1025 + 1043 =W

2068 + 2934 =T

953 + 1129 =R

4944 + 3902 =L

2880 + 4728 =C

4270 + 4236 =D

5848 + 2556 =F

2339 + 1069 =O

5373 + 3417 =H

6283 + 3350 =I

3690 + 2128 =E

1585 + 2224 =B

2221 + 2872 =N

3785 + 3258 =U

2278 + 1303 =K

3215 + 6568 =A

0/16 letters found

Clue 5

Division facts (1-12) — the last clue

We need to share our juice boxes equally. Divide the boxes among our friends to get the final 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

56 ÷ 8 = ?

64 ÷ 8 = ?

33 ÷ 11 = ?

55 ÷ 11 = ?

44 ÷ 11 = ?

2 ÷ 1 = ?

3 ÷ 3 = ?

36 ÷ 4 = ?

36 ÷ 3 = ?

6 ÷ 1 = ?

99 ÷ 9 = ?

Step 2 — cross out the sentence with each answer

1.The villain climbs the tall vine, then zips up their backpack.

2.The villain splashes through the stream, then drops a banana peel.

3.The villain crawls under the giant leaf, then loses a shiny coin.

4.The villain crawls under the giant leaf, then hides behind a bush.

5.The villain swings from a branch, then wipes away some mud.

6.The villain climbs the tall vine, then hides behind a bush.

7.The villain swings from a branch, then hides behind a bush.

8.The villain climbs the tall vine, then drops a banana peel.

9.The villain crosses the rope bridge, then loses a shiny coin.

10.The villain crosses the rope bridge, then drops a banana peel.

11.The villain swings from a branch, then zips up their backpack.

12.The villain crawls under the giant leaf, then wipes away some mud.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Great Treehouse Rescue

Culprit: Max (Pocket Compass · Laser Pointer · Left Watch · Deep Black Hair · Fear Of Spiders)

Clue 1 (Subtraction): "THE VILLAIN DOES NOT HAVE GLIDER WINGS"
2911 - 1154 = 1757 (T) · 6063 - 4716 = 1347 (N) · 10757 - 1872 = 8885 (I) · 9409 - 1179 = 8230 (L) · 13473 - 4785 = 8688 (E) · 6334 - 2982 = 3352 (S) · 8807 - 3427 = 5380 (H) · 5559 - 309 = 5250 (V) · 9283 - 3475 = 5808 (G) · 3590 - 2275 = 1315 (W) · 7394 - 3717 = 3677 (O) · 5532 - 2454 = 3078 (A) · 13085 - 4212 = 8873 (R) · 10204 - 1723 = 8481 (D)
Clue 2 (Multiplication facts (1-12)): "THE THIEF WEARS A WATCH ON THE LEFT"
1 × 8 = 8 (T) · 12 × 10 = 120 (S) · 2 × 11 = 22 (E) · 9 × 1 = 9 (L) · 1 × 4 = 4 (W) · 9 × 3 = 27 (R) · 8 × 11 = 88 (N) · 5 × 11 = 55 (I) · 12 × 12 = 144 (A) · 12 × 8 = 96 (F) · 1 × 3 = 3 (O) · 7 × 12 = 84 (H) · 8 × 10 = 80 (C)
Clue 3 (Rounding): "A TINY SPIDER SCARED THE THIEF COLD"
Round 489 to the nearest hundred = 500 (A) · Round 167 to the nearest ten = 170 (C) · Round 1,656 to the nearest hundred = 1700 (T) · Round 3,688 to the nearest hundred = 3700 (I) · Round 234 to the nearest ten = 230 (O) · Round 366 to the nearest ten = 370 (R) · Round 2,907 to the nearest hundred = 2900 (H) · Round 7,187 to the nearest thousand = 7000 (L) · Round 93 to the nearest ten = 90 (Y) · Round 22 to the nearest ten = 20 (N) · Round 71 to the nearest ten = 70 (D) · Round 5,233 to the nearest thousand = 5000 (S) · Round 49 to the nearest ten = 50 (F) · Round 925 to the nearest hundred = 900 (E) · Round 32 to the nearest ten = 30 (P)
Clue 4 (Addition): "WE FOUND BLACK HAIR ON THE BRANCH"
1025 + 1043 = 2068 (W) · 2068 + 2934 = 5002 (T) · 953 + 1129 = 2082 (R) · 4944 + 3902 = 8846 (L) · 2880 + 4728 = 7608 (C) · 4270 + 4236 = 8506 (D) · 5848 + 2556 = 8404 (F) · 2339 + 1069 = 3408 (O) · 5373 + 3417 = 8790 (H) · 6283 + 3350 = 9633 (I) · 3690 + 2128 = 5818 (E) · 1585 + 2224 = 3809 (B) · 2221 + 2872 = 5093 (N) · 3785 + 3258 = 7043 (U) · 2278 + 1303 = 3581 (K) · 3215 + 6568 = 9783 (A)
Clue 5 (Division facts (1-12)): surviving statement (box 10) → Max
56 ÷ 8 = 7 · 64 ÷ 8 = 8 · 33 ÷ 11 = 3 · 55 ÷ 11 = 5 · 44 ÷ 11 = 4 · 2 ÷ 1 = 2 · 3 ÷ 3 = 1 · 36 ÷ 4 = 9 · 36 ÷ 3 = 12 · 6 ÷ 1 = 6 · 99 ÷ 9 = 11

About this mystery

Grade level: Grade 5 math
Math topics: Subtraction, Multiplication, Rounding, Addition, Division
Reading level: grades 1-2
Theme: The Great Treehouse Rescue — set in The Great Treehouse Jungle
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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