Math Crackers
Grade 3Reading: grades 3-4AdditionSubtractionPlace valueRoundingDivision

The Sky Pirate Airship Mystery

The legendary Golden Compass has vanished from the cockpit of the Wind Runner airship. The Sky Patrol needs you to solve the clues, track down the thief, and save the day!

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameFlying StyleSignature GadgetGoggle StyleHair ColorDefense Weakness
Finnglider wing jacketdecoder monoclewears black gogglesbright blue hairscared by loud horn
Capriglider wing jacketsmoke bomb flaskwears gold gogglesspiky red hairscared by loud horn
Tobygrappling hook beltsonic whistlewears black gogglesbright blue hairsplashed with cold water
Leoglider wing jacketflash powder pouchwears gold gogglesspiky red hairscared by loud horn
Beckgrappling hook beltflash powder pouchwears gold gogglesbright blue hairscared by loud horn
Zeldawind blast glovesflash powder pouchwears gold gogglesbright blue hairscared by loud horn
Ameliagrappling hook beltdecoder monoclewears black gogglesbright blue hairscared by loud horn
Kiraglider wing jacketdecoder monoclewears gold gogglesbright blue hairsplashed with cold water
Pipermagnetic climbing bootssonic whistlewears black gogglesbright blue hairscared by loud horn
Nellieglider wing jacketsonic whistlewears gold gogglesbraided neon green hairscared by loud horn
Marcograppling hook beltelectric net launcherwears gold gogglesbraided neon green hairsplashed with cold water
Sashawind blast glovessmoke bomb flaskwears black gogglesbright blue hairsplashed with cold water
Roxiewind blast glovessonic whistlewears black gogglesbright blue hairsplashed with cold water
Lauragrappling hook beltsmoke bomb flaskwears gold gogglesbright blue hairscared by loud horn
Svenglider wing jacketsonic whistlewears black gogglesbright blue hairsplashed with cold water
Drakemagnetic climbing bootsflash powder pouchwears gold gogglesbright blue hairscared by loud horn
Ottoglider wing jacketsonic whistlewears black gogglesbraided neon green hairscared by loud horn
Gemmarocket booster packdecoder monoclewears gold gogglesbright blue hairscared by loud horn
Hudsongrappling hook beltdecoder monoclewears black gogglesspiky red hairscared by loud horn
Stevemagnetic climbing bootssonic whistlewears gold gogglesbraided neon green hairscared by loud horn
Jacquesmagnetic climbing bootsflash powder pouchwears gold gogglesbraided neon green hairscared by loud horn
Clue 1

Addition

Captain Barnaby counts the crates of heavy iron gear loaded onto the airship. We must add the new cargo to the old stash to find the secret code.

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
724
204
660
461
756
944
944
254
756
699
964
351
254
987
351
660
T
724
756
964
699
779
T
724
254
964
871
779
251
660
554
779
871
554
974
944
254
964
251
452 + 272 =T
296 + 165 =V
130 + 221 =G
248 + 531 =O
624 + 320 =L
386 + 578 =S
263 + 291 =B
175 + 76 =K
105 + 99 =H
341 + 646 =D
223 + 476 =N
349 + 311 =E
371 + 385 =I
484 + 387 =M
332 + 642 =F
170 + 84 =A
0/16 letters found
Clue 2

Subtraction

The sky pirates dropped some supply bags over the Whispering Mountains to fly faster. Subtract the lost weight to 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.

W
161
679
201
598
W
161
757
232
679
201
366
582
201
232
164
582
679
258
440
440
854
258
144
286
679
405
679
W
161
679
598
514
301 - 140 =W
944 - 90 =G
443 - 211 =H
363 - 219 =L
556 - 151 =Y
1059 - 380 =E
765 - 399 =U
273 - 109 =I
827 - 313 =R
762 - 5 =T
801 - 219 =N
617 - 19 =A
304 - 46 =O
581 - 295 =D
453 - 13 =F
386 - 185 =S
0/16 letters found
Clue 3

Place value

We found a locked brass compass. To open the lid, we need to find which digit sits in the tens place of the map coordinates.

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
10
700
400
200
900
50
70
40
1000
90
70
8000
7000
400
800
A
10
6000
400
7000
80
3000
400
800
200
40
90
A
10
2000
A
10
900
What is the value of the 1 in 812?A
What is the value of the 8 in 98,705?I
What is the value of the 4 in 7,749?U
What is the value of the 8 in 9,853?M
What is the value of the 7 in 27,115?S
What is the value of the 9 in 970?Y
What is the value of the 2 in 2,816?W
What is the value of the 7 in 1,179?O
What is the value of the 8 in 3,087?T
What is the value of the 7 in 700?V
What is the value of the 1 in 61,442?D
What is the value of the 4 in 492?E
What is the value of the 2 in 283?R
What is the value of the 6 in 6,158?K
What is the value of the 3 in 3,666?H
What is the value of the 5 in 7,758?L
What is the value of the 9 in 898?N
0/17 letters found
Clue 4

Rounding

Our wind radar screen is fuzzy and only shows rounded numbers. Round the distance to the nearest ten to target 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.

W
7000
60
2000
300
5000
6000
70
8000
4000
900
700
500
400
9000
4000
800
5000
60
40
9000
900
8000
6000
70
300
2000
400
8000
700
900
Round 7,372 to the nearest thousandW
Round 727 to the nearest hundredI
Round 9,153 to the nearest thousandT
Round 1,912 to the nearest thousandF
Round 389 to the nearest hundredH
Round 68 to the nearest tenD
Round 926 to the nearest hundredR
Round 4,879 to the nearest thousandU
Round 36 to the nearest tenS
Round 3,887 to the nearest thousandB
Round 5,806 to the nearest thousandN
Round 7,639 to the nearest thousandA
Round 531 to the nearest hundredG
Round 264 to the nearest hundredO
Round 820 to the nearest hundredL
Round 57 to the nearest tenE
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

We need to share the recovered golden gears equally among our four search crews. Divide the pile to see how many gears each crew gets.

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
8 ÷ 1 = ?
1 ÷ 1 = ?
49 ÷ 7 = ?
5 ÷ 1 = ?
27 ÷ 3 = ?
20 ÷ 10 = ?
12 ÷ 2 = ?
24 ÷ 6 = ?
66 ÷ 6 = ?
108 ÷ 9 = ?
90 ÷ 9 = ?
Step 2 — cross out the sentence with each answer
1.The villain swings across using a grappling hook belt, then throws a flash powder pouch.
2.The villain swoops down in a glider wing jacket, then peeks through a decoder monocle.
3.The villain zooms past on a rocket booster pack, then peeks through a decoder monocle.
4.The villain creates a gale using wind blast gloves, then fires an electric net launcher.
5.The villain swings across using a grappling hook belt, then tweets on a sonic whistle.
6.The villain zooms past on a rocket booster pack, then fires an electric net launcher.
7.The villain scales the hull with magnetic climbing boots, then throws a flash powder pouch.
8.The villain creates a gale using wind blast gloves, then throws a flash powder pouch.
9.The villain scales the hull with magnetic climbing boots, then peeks through a decoder monocle.
10.The villain swings across using a grappling hook belt, then fires an electric net launcher.
11.The villain swings across using a grappling hook belt, then drops a smoke bomb flask.
12.The villain creates a gale using wind blast gloves, then tweets on a sonic whistle.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Addition, Subtraction, Place value, Rounding, Division
Reading level
grades 3-4
Theme
The Sky Pirate Airship Mystery — set in The Whispering Clouds
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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