Grade 5Reading: grades 3-4MultiplicationFractions of a numberOrder of operationsRoundingDivision
The Sky Island Caper
The golden compass has been swiped from the Headmaster's desk high above the clouds! We need to follow the clues, use our math gear, and track down the culprit before they fly away forever.
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 | Special Gear | Secondary Skill | Dominant Hand | Hair Style | Foil |
|---|---|---|---|---|---|
| Finn Falcon | glider wings | rope swinging | left handed | braided green hair | sticky bubblegum |
| Leo Launch | grappling hook | lock picking | left handed | braided green hair | sticky bubblegum |
| Zane Zeppelin | rocket boots | lock picking | right handed | curly blue hair | loud whistles |
| Maya Mapmaker | climbing claws | map decoding | right handed | braided green hair | sticky bubblegum |
| Rusty Rotor | glider wings | rope swinging | right handed | spiky red hair | sticky bubblegum |
| Val Velocity | rocket boots | stealthy crawling | left handed | braided green hair | sticky bubblegum |
| Barnaby Blast | rocket boots | cloud hiding | left handed | curly blue hair | loud whistles |
| Captain Cody | climbing claws | rope swinging | left handed | braided green hair | sticky bubblegum |
| Dash Daring | grappling hook | stealthy crawling | right handed | braided green hair | sticky bubblegum |
| Clara Compass | glider wings | stealthy crawling | right handed | spiky red hair | loud whistles |
| Jet Jackson | glider wings | rope swinging | left handed | spiky red hair | sticky bubblegum |
| Stormy Sam | climbing claws | cloud hiding | left handed | spiky red hair | loud whistles |
| Skye Spinner | smoke bombs | map decoding | right handed | spiky red hair | sticky bubblegum |
| Gale Gordon | grappling hook | stealthy crawling | left handed | spiky red hair | loud whistles |
| Ace Altitude | grappling hook | cloud hiding | left handed | braided green hair | sticky bubblegum |
| Piper Prop | smoke bombs | stealthy crawling | left handed | spiky red hair | bright flashlights |
| Rex Radar | grappling hook | lock picking | left handed | braided green hair | bright flashlights |
| Sunny Sarah | smoke bombs | rope swinging | right handed | curly blue hair | sticky bubblegum |
| Gemma Glider | smoke bombs | rope swinging | left handed | braided green hair | bright flashlights |
| Aero Andy | smoke bombs | lock picking | left handed | spiky red hair | sticky bubblegum |
| Breezy Bella | glider wings | map decoding | right handed | braided green hair | loud whistles |
Clue 1
Multiplication facts (1-12)
To unlock the secure hangar, we need to count the rows of sky bikes parked in the grid.
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
108
88
77
24
7
66
25
6
T
108
25
120
77
90
66
120
T
108
70
90
77
28
1
120
70
25
88
6
25
6
66
50
12 × 9 =T
7 × 11 =E
12 × 10 =O
2 × 12 =B
11 × 6 =N
10 × 5 =G
1 × 1 =L
4 × 7 =C
7 × 1 =A
9 × 10 =S
5 × 5 =D
8 × 11 =H
2 × 3 =I
10 × 7 =U
0/14 letters found
Clue 2
Fractions of a number
A fraction of the compass fuel cells have been drained, and we must find the exact amount.
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
30
31
10
25
10
38
T
30
31
40
27
11
10
11
23
25
8
21
10
32
40
29
11
17
8
26
26
10
11
3/10 of 100 =T
2/10 of 190 =F
4/10 of 25 =E
1/8 of 88 =D
7/8 of 24 =V
1/4 of 108 =N
2/4 of 34 =R
4/10 of 80 =W
4/5 of 50 =A
1/5 of 130 =P
2/6 of 93 =H
3/6 of 58 =S
3/6 of 50 =L
1/8 of 184 =G
1/8 of 64 =O
0/15 letters found
Clue 3
Order of operations
We found a scrap of paper with a multi-step formula used to program the airship's auto-pilot.
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
29
60
46
57
25
65
T
29
23
T
29
41
18
70
52
22
23
T
29
52
18
70
57
8
41
8
8
35
46
25
41
20
12 × 3 - 7 =T
11 × 5 - 14 =U
10 × 4 - 5 =L
8 × 4 - 24 =B
9 × 4 - 13 =S
6 + 8 × 5 =E
5 × 7 - 15 =M
33 + 4 × 6 =Y
11 × 8 - 18 =K
6 × 12 - 20 =I
8 + 2 × 5 =C
2 + 5 × 4 =N
44 + 2 × 8 =H
17 + 4 × 2 =G
47 + 6 × 3 =O
0/15 letters found
Clue 4
Rounding
The sky radar only shows the bandit's distance rounded to the nearest ten miles.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
20
3700
430
290
50
2000
2900
230
1100
900
70
2900
3700
2900
1300
1100
3700
3700
2000
30
900
70
1100
290
2000
200
30
3700
2900
3700
7000
170
Round 21 to the nearest tenW
Round 935 to the nearest hundredA
Round 170 to the nearest tenK
Round 157 to the nearest hundredT
Round 1,276 to the nearest hundredG
Round 66 to the nearest tenI
Round 6,955 to the nearest thousandS
Round 1,081 to the nearest hundredR
Round 54 to the nearest tenU
Round 2,934 to the nearest hundredD
Round 3,718 to the nearest hundredE
Round 1,844 to the nearest thousandN
Round 427 to the nearest tenF
Round 34 to the nearest tenH
Round 294 to the nearest tenO
Round 229 to the nearest tenB
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
To split the rescue crew into equal search teams, we have to divide the remaining academy maps.
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
144 ÷ 12 = ?
30 ÷ 3 = ?
45 ÷ 5 = ?
24 ÷ 4 = ?
45 ÷ 9 = ?
132 ÷ 12 = ?
9 ÷ 3 = ?
24 ÷ 3 = ?
2 ÷ 1 = ?
20 ÷ 5 = ?
2 ÷ 2 = ?
Step 2 — cross out the sentence with each answer
1.The villain zipped away with a grappling hook, then swung to safety with rope swinging.
2.The villain zoomed off using rocket boots, then fled after map decoding.
3.The villain zoomed off using rocket boots, then escaped into the sky via cloud hiding.
4.The villain soared off on glider wings, then fled after map decoding.
5.The villain soared off on glider wings, then crept away using stealthy crawling.
6.The villain vanished inside a cloud of smoke bombs, then fled after map decoding.
7.The villain zipped away with a grappling hook, then escaped by quickly lock picking.
8.The villain soared off on glider wings, then escaped by quickly lock picking.
9.The villain soared off on glider wings, then swung to safety with rope swinging.
10.The villain scaled the wall with climbing claws, then swung to safety with rope swinging.
11.The villain scaled the wall with climbing claws, then escaped by quickly lock picking.
12.The villain zoomed off using rocket boots, then crept away using stealthy crawling.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Sky Island Caper
Culprit: Leo Launch (grappling hook · lock picking · left handed · braided green hair · sticky bubblegum)
- Clue 1 (Multiplication facts (1-12)): "THE BANDIT DOES NOT USE CLOUD HIDING"12 × 9 = 108 (T) · 7 × 11 = 77 (E) · 12 × 10 = 120 (O) · 2 × 12 = 24 (B) · 11 × 6 = 66 (N) · 10 × 5 = 50 (G) · 1 × 1 = 1 (L) · 4 × 7 = 28 (C) · 7 × 1 = 7 (A) · 9 × 10 = 90 (S) · 5 × 5 = 25 (D) · 8 × 11 = 88 (H) · 2 × 3 = 6 (I) · 10 × 7 = 70 (U)
- Clue 2 (Fractions of a number): "THE LEFT HANDED GLOVE WAS DROPPED"3/10 of 100 = 30 (T) · 2/10 of 190 = 38 (F) · 4/10 of 25 = 10 (E) · 1/8 of 88 = 11 (D) · 7/8 of 24 = 21 (V) · 1/4 of 108 = 27 (N) · 2/4 of 34 = 17 (R) · 4/10 of 80 = 32 (W) · 4/5 of 50 = 40 (A) · 1/5 of 130 = 26 (P) · 2/6 of 93 = 31 (H) · 3/6 of 58 = 29 (S) · 3/6 of 50 = 25 (L) · 1/8 of 184 = 23 (G) · 1/8 of 64 = 8 (O)
- Clue 3 (Order of operations): "THEY GOT STUCK IN STICKY BUBBLEGUM"12 × 3 - 7 = 29 (T) · 11 × 5 - 14 = 41 (U) · 10 × 4 - 5 = 35 (L) · 8 × 4 - 24 = 8 (B) · 9 × 4 - 13 = 23 (S) · 6 + 8 × 5 = 46 (E) · 5 × 7 - 15 = 20 (M) · 33 + 4 × 6 = 57 (Y) · 11 × 8 - 18 = 70 (K) · 6 × 12 - 20 = 52 (I) · 8 + 2 × 5 = 18 (C) · 2 + 5 × 4 = 22 (N) · 44 + 2 × 8 = 60 (H) · 17 + 4 × 2 = 25 (G) · 47 + 6 × 3 = 65 (O)
- Clue 4 (Rounding): "WE FOUND BRAIDED GREEN HAIR ON THE DESK"Round 21 to the nearest ten = 20 (W) · Round 935 to the nearest hundred = 900 (A) · Round 170 to the nearest ten = 170 (K) · Round 157 to the nearest hundred = 200 (T) · Round 1,276 to the nearest hundred = 1300 (G) · Round 66 to the nearest ten = 70 (I) · Round 6,955 to the nearest thousand = 7000 (S) · Round 1,081 to the nearest hundred = 1100 (R) · Round 54 to the nearest ten = 50 (U) · Round 2,934 to the nearest hundred = 2900 (D) · Round 3,718 to the nearest hundred = 3700 (E) · Round 1,844 to the nearest thousand = 2000 (N) · Round 427 to the nearest ten = 430 (F) · Round 34 to the nearest ten = 30 (H) · Round 294 to the nearest ten = 290 (O) · Round 229 to the nearest ten = 230 (B)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Leo Launch144 ÷ 12 = 12 · 30 ÷ 3 = 10 · 45 ÷ 5 = 9 · 24 ÷ 4 = 6 · 45 ÷ 9 = 5 · 132 ÷ 12 = 11 · 9 ÷ 3 = 3 · 24 ÷ 3 = 8 · 2 ÷ 1 = 2 · 20 ÷ 5 = 4 · 2 ÷ 2 = 1
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Multiplication, Fractions of a number, Order of operations, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Sky Island Caper — set in Sky Island Academy
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects