Grade 4Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
The Great Sky-Shard Heist
Someone sneaked into the Cloud Tower and took the golden Sky-Shard! Without it, the floating islands of Zephyria might drift away into the fog. We must find the sneaky Sky-Thief before the city floats apart.
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 | Sky Gear | Spy Gadget | Dominant Hand | Hair Style | Secret Fear |
|---|---|---|---|---|---|
| Aviator Abby | Grappling Hook | Night Goggles | uses left hand | messy gold hair | loud honking horns |
| Max Altitude | Turbo Glider | Solar Compass | uses left hand | braided red hair | bubbly soapy water |
| Hattie Hover | Turbo Glider | Signal Whistle | uses right hand | braided red hair | bubbly soapy water |
| Pilot Penny | Cloud Net | Signal Whistle | uses left hand | spiky blue hair | loud honking horns |
| Gemma Glide | Wind Cannon | Night Goggles | uses left hand | messy gold hair | bubbly soapy water |
| Stella Star | Cloud Net | Solar Compass | uses left hand | spiky blue hair | bright flashlights |
| Wendy Wind | Cloud Net | Signal Whistle | uses left hand | braided red hair | loud honking horns |
| Danny Drift | Steam Pack | Night Goggles | uses left hand | braided red hair | bubbly soapy water |
| Rusty Gear | Grappling Hook | Laser Pointer | uses right hand | messy gold hair | bright flashlights |
| Daisy Dare | Steam Pack | Solar Compass | uses right hand | spiky blue hair | bubbly soapy water |
| Captain Barnaby | Steam Pack | Laser Pointer | uses left hand | braided red hair | bubbly soapy water |
| Copper Cody | Grappling Hook | Solar Compass | uses left hand | braided red hair | bubbly soapy water |
| Gale Tempest | Steam Pack | Solar Compass | uses left hand | spiky blue hair | loud honking horns |
| Breezy Betty | Steam Pack | Pocket Radar | uses right hand | braided red hair | loud honking horns |
| Bella Balloon | Grappling Hook | Laser Pointer | uses left hand | braided red hair | loud honking horns |
| Zephyr Zach | Wind Cannon | Solar Compass | uses left hand | braided red hair | bright flashlights |
| Leo Loop | Grappling Hook | Laser Pointer | uses left hand | braided red hair | bubbly soapy water |
| Flight Leader Finn | Grappling Hook | Night Goggles | uses left hand | spiky blue hair | bubbly soapy water |
| Toby Turbo | Grappling Hook | Pocket Radar | uses left hand | messy gold hair | bubbly soapy water |
| Professor Pip | Wind Cannon | Solar Compass | uses right hand | braided red hair | loud honking horns |
| Oliver Orbit | Cloud Net | Laser Pointer | uses left hand | spiky blue hair | bubbly soapy water |
Clue 1
Rounding
We scanned the clouds with our sky-radar. The radar screen is old and only shows rounded numbers. We rounded the signals to track 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
9000
2000
290
T
9000
2000
50
290
700
2900
170
290
5000
200
170
T
9000
3700
5000
290
200
50
30
2000
T
9000
30
170
30
30
4300
290
5000
Round 8,766 to the nearest thousandT
Round 30 to the nearest tenG
Round 4,273 to the nearest hundredL
Round 289 to the nearest tenE
Round 3,739 to the nearest hundredU
Round 169 to the nearest tenO
Round 2,853 to the nearest hundredD
Round 198 to the nearest hundredN
Round 690 to the nearest hundredF
Round 1,849 to the nearest thousandH
Round 4,520 to the nearest thousandS
Round 49 to the nearest tenI
0/12 letters found
Clue 2
Addition
We found some shiny gold screws on a wooden rope bridge. We added up all the screws to see how many tools fell from the thief's belt.
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
3636
7219
5342
7718
8724
4741
4945
T
3636
7718
3068
7202
3068
3061
5342
7087
T
3636
7219
3068
7672
6218
9845
2848
6544
7672
T
3636
1553 + 2083 =T
2402 + 5270 =N
3858 + 3344 =W
4345 + 2742 =F
3707 + 5017 =C
1367 + 1481 =R
2015 + 4529 =I
2617 + 2124 =O
4863 + 2356 =H
4210 + 2008 =D
6429 + 3416 =P
1711 + 1350 =L
2441 + 2901 =E
4763 + 2955 =S
2223 + 2722 =U
1972 + 1096 =A
0/16 letters found
Clue 3
Subtraction
Our fuel tank is leaking after the chase. We subtracted the remaining drops of fuel to find out how far our balloon can fly.
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
5195
3557
2933
8503
5867
6623
4553
T
5195
2853
2933
7068
1234
2933
1234
T
5195
3557
2933
3383
6623
2853
2853
6137
1053
T
5195
3557
8503
6623
7650
6193
3959
6137
7650
T
5195
2933
3532
7597 - 2402 =T
10016 - 1513 =S
4507 - 3454 =I
9669 - 3802 =C
3750 - 193 =H
6417 - 1864 =U
7534 - 4002 =R
11081 - 3431 =A
10149 - 3526 =O
6835 - 642 =P
6836 - 2877 =Y
5472 - 2089 =M
1886 - 652 =D
3234 - 301 =E
11176 - 4108 =N
3139 - 286 =F
9929 - 3792 =W
0/17 letters found
Clue 4
Multiplication facts (1-12)
The thief ran through a grove of giant cloud-berry trees. The trees grow in neat rows. We multiplied the rows to count the berries.
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
81
9
120
24
1
10
36
84
72
7
9
56
9
24
120
49
27
84
7
36
9
36
27
9
36
42
84
7
27
9 × 9 =W
1 × 10 =N
8 × 9 =P
9 × 3 =R
6 × 6 =D
12 × 7 =A
10 × 12 =F
7 × 6 =H
1 × 1 =U
7 × 1 =I
7 × 7 =B
2 × 12 =O
3 × 3 =E
7 × 8 =C
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
We rescued some sky-puppies that the thief scared. We divided our dog treats equally among them so they would bark and show us the trail.
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
100 ÷ 10 = ?
30 ÷ 6 = ?
80 ÷ 10 = ?
77 ÷ 7 = ?
6 ÷ 2 = ?
16 ÷ 4 = ?
66 ÷ 11 = ?
81 ÷ 9 = ?
5 ÷ 5 = ?
22 ÷ 11 = ?
72 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain zoomed off on a turbo glider, then aimed a bright green laser pointer.
2.The villain tangled the guards in a cloud net, then put on some dark night goggles.
3.The villain tangled the guards in a cloud net, then aimed a bright green laser pointer.
4.The villain zoomed off on a turbo glider, then tracked the wind with a pocket radar.
5.The villain swung from a heavy grappling hook, then aimed a bright green laser pointer.
6.The villain zoomed off on a turbo glider, then put on some dark night goggles.
7.The villain zoomed off on a turbo glider, then checked the path with a solar compass.
8.The villain swung from a heavy grappling hook, then checked the path with a solar compass.
9.The villain floated up using a steam pack, then put on some dark night goggles.
10.The villain floated up using a steam pack, then aimed a bright green laser pointer.
11.The villain swung from a heavy grappling hook, then blew a loud signal whistle.
12.The villain floated up using a steam pack, then checked the path with a solar compass.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Sky-Shard Heist
Culprit: Max Altitude (Turbo Glider · Solar Compass · uses left hand · braided red hair · bubbly soapy water)
- Clue 1 (Rounding): "THE THIEF DOES NOT USE NIGHT GOGGLES"Round 8,766 to the nearest thousand = 9000 (T) · Round 30 to the nearest ten = 30 (G) · Round 4,273 to the nearest hundred = 4300 (L) · Round 289 to the nearest ten = 290 (E) · Round 3,739 to the nearest hundred = 3700 (U) · Round 169 to the nearest ten = 170 (O) · Round 2,853 to the nearest hundred = 2900 (D) · Round 198 to the nearest hundred = 200 (N) · Round 690 to the nearest hundred = 700 (F) · Round 1,849 to the nearest thousand = 2000 (H) · Round 4,520 to the nearest thousand = 5000 (S) · Round 49 to the nearest ten = 50 (I)
- Clue 2 (Addition): "THE SCOUT SAW A LEFT HAND PRINT"1553 + 2083 = 3636 (T) · 2402 + 5270 = 7672 (N) · 3858 + 3344 = 7202 (W) · 4345 + 2742 = 7087 (F) · 3707 + 5017 = 8724 (C) · 1367 + 1481 = 2848 (R) · 2015 + 4529 = 6544 (I) · 2617 + 2124 = 4741 (O) · 4863 + 2356 = 7219 (H) · 4210 + 2008 = 6218 (D) · 6429 + 3416 = 9845 (P) · 1711 + 1350 = 3061 (L) · 2441 + 2901 = 5342 (E) · 4763 + 2955 = 7718 (S) · 2223 + 2722 = 4945 (U) · 1972 + 1096 = 3068 (A)
- Clue 3 (Subtraction): "THE SCOUT FENDED THEM OFF WITH SOAPY WATER"7597 - 2402 = 5195 (T) · 10016 - 1513 = 8503 (S) · 4507 - 3454 = 1053 (I) · 9669 - 3802 = 5867 (C) · 3750 - 193 = 3557 (H) · 6417 - 1864 = 4553 (U) · 7534 - 4002 = 3532 (R) · 11081 - 3431 = 7650 (A) · 10149 - 3526 = 6623 (O) · 6835 - 642 = 6193 (P) · 6836 - 2877 = 3959 (Y) · 5472 - 2089 = 3383 (M) · 1886 - 652 = 1234 (D) · 3234 - 301 = 2933 (E) · 11176 - 4108 = 7068 (N) · 3139 - 286 = 2853 (F) · 9929 - 3792 = 6137 (W)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND A PIECE OF BRAIDED RED HAIR"9 × 9 = 81 (W) · 1 × 10 = 10 (N) · 8 × 9 = 72 (P) · 9 × 3 = 27 (R) · 6 × 6 = 36 (D) · 12 × 7 = 84 (A) · 10 × 12 = 120 (F) · 7 × 6 = 42 (H) · 1 × 1 = 1 (U) · 7 × 1 = 7 (I) · 7 × 7 = 49 (B) · 2 × 12 = 24 (O) · 3 × 3 = 9 (E) · 7 × 8 = 56 (C)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Max Altitude100 ÷ 10 = 10 · 30 ÷ 6 = 5 · 80 ÷ 10 = 8 · 77 ÷ 7 = 11 · 6 ÷ 2 = 3 · 16 ÷ 4 = 4 · 66 ÷ 11 = 6 · 81 ÷ 9 = 9 · 5 ÷ 5 = 1 · 22 ÷ 11 = 2 · 72 ÷ 6 = 12
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Great Sky-Shard Heist — set in The Sky-City of Zephyria
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects