Math Mysteries
Grade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Sky Bandit of Nimbus

Someone has stolen the Golden Sunstone from the floating temple! Without it, the clouds will sink and the islands will fall. The Chief Cloud Keeper needs your help. Look for clues, solve the puzzles, and help the Sky Patrol catch the bandit before sunset!

Suspects

Possible suspects

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

21 of 21 still in play
NameGearArtifactDominant HandHeadgearDistraction
Uma Upwindsmoke bombbronze spyglassleft-handedblue gogglesloud whistle
Hazel Hoversmoke bombruby lanternright-handedblue gogglesloud whistle
Peggy Pilotgrappling hookruby lanternright-handedgreen captickle feather
Barnaby Blueglider wingsbronze spyglassleft-handedblue gogglesloud whistle
Sky Skyesmoke bombbronze spyglassright-handedgreen capbright flash
Explorer Emmagrappling hookcopper mapright-handedblue gogglesloud whistle
Olivia Oceangrappling hookgold compassright-handedgreen captickle feather
Daring Dannymagnet glovecopper mapleft-handedblue gogglesloud whistle
Leo Latitudemagnet glovebronze spyglassleft-handedgreen capbright flash
Toby Travelermagnet glovecopper mapleft-handedred bandanatickle feather
Flynn Feathersmoke bombcopper mapleft-handedblue gogglesbright flash
Marina Mapgrappling hooksilver whistleleft-handedblue gogglesloud whistle
Val Valleymagnet glovesilver whistleright-handedgreen captickle feather
Xavier Zensmoke bombruby lanternleft-handedred bandanaloud whistle
Jet Jacksongrappling hookruby lanternleft-handedred bandanabright flash
Rider Rustywind blowerbronze spyglassright-handedred bandanaloud whistle
Gale Glidergrappling hookgold compassright-handedblue gogglesloud whistle
Navigator Nategrappling hookruby lanternleft-handedblue gogglesbright flash
Zoe Zeppelinwind blowergold compassleft-handedblue gogglesbright flash
Isla Islandglider wingsruby lanternleft-handedblue gogglesloud whistle
Windy Wyattsmoke bombcopper mapright-handedred bandanabright flash
Clue 1

Rounding

We found the bandit's broken radar screen. The screen only shows distance rounded to the nearest ten. Round this number to find the clue!

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
300
8000
3000
2000
60
90
20
400
T
300
20
30
3000
6000
90
30
T
300
800
6000
3000
60
7000
30
500
500
3000
600
4000
60
500
Round 259 to the nearest hundredT
Round 413 to the nearest hundredI
Round 761 to the nearest hundredU
Round 630 to the nearest hundredR
Round 24 to the nearest tenD
Round 1,608 to the nearest thousandB
Round 8,445 to the nearest thousandH
Round 32 to the nearest tenO
Round 59 to the nearest tenA
Round 91 to the nearest tenN
Round 3,428 to the nearest thousandE
Round 7,447 to the nearest thousandC
Round 3,520 to the nearest thousandM
Round 5,706 to the nearest thousandS
Round 523 to the nearest hundredP
0/15 letters found
Clue 2

Addition

To find where the bandit went, we need to total up the stolen cargo. Add these supply boxes together to unlock the next lead!

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
323
277
915
886
567
619
216
490
490
216
987
T
323
546
423
987
546
898
464
915
490
546
898
T
323
277
T
323
277
915
567
915
411
T
323
277
423
810
490
147 + 176 =T
110 + 106 =U
312 + 603 =E
375 + 192 =L
367 + 179 =W
221 + 398 =O
194 + 270 =P
453 + 433 =C
253 + 158 =F
510 + 477 =S
157 + 120 =H
264 + 226 =D
153 + 270 =A
522 + 376 =I
277 + 533 =N
0/15 letters found
Clue 3

Subtraction

The sky bandit dropped some heavy sandbags to float away. Subtract the lost weight from the total weight to read the next clue!

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
341
131
756
453
477
588
588
756
453
453
870
878
400
131
756
878
T
341
131
756
400
131
283
668
T
341
128
756
588
128
756
400
128
477
643
163
572 - 231 =T
367 - 204 =D
717 - 240 =O
647 - 4 =U
996 - 126 =A
1111 - 355 =E
970 - 92 =N
541 - 258 =I
888 - 300 =B
357 - 229 =L
344 - 213 =H
851 - 398 =R
993 - 325 =S
560 - 160 =W
0/14 letters found
Clue 4

Multiplication facts (1-12)

We found rows of mysterious sky crystals left behind. Multiply the rows by the columns to count them and get a clue!

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

S
36
12
42
121
132
S
36
120
42
77
54
10
27
1
110
3
77
3
3
27
110
S
36
66
110
42
110
27
110
120
12
10
110
15
80
90
45
9 × 4 =S
11 × 11 =A
3 × 5 =H
11 × 6 =W
11 × 7 =O
9 × 6 =M
12 × 10 =F
11 × 12 =P
6 × 7 =R
5 × 9 =D
1 × 1 =U
12 × 1 =T
8 × 10 =I
1 × 3 =G
3 × 9 =L
11 × 10 =E
10 × 9 =N
1 × 10 =B
0/18 letters found
Clue 5

Division facts (1-12) — the last clue

The rescue team needs to split the recovered energy cells evenly. Divide the cells among the crew 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
32 ÷ 4 = ?
12 ÷ 6 = ?
36 ÷ 12 = ?
9 ÷ 9 = ?
60 ÷ 5 = ?
6 ÷ 1 = ?
28 ÷ 4 = ?
15 ÷ 3 = ?
90 ÷ 9 = ?
55 ÷ 5 = ?
90 ÷ 10 = ?
Step 2 — cross out the sentence with each answer
1.The villain swung on a grappling hook, then unrolled the copper map.
2.The villain soared on glider wings, then peered through the bronze spyglass.
3.The villain swung on a grappling hook, then blew the silver whistle.
4.The villain soared on glider wings, then lit up the ruby lantern.
5.The villain blasted a wind blower, then lit up the ruby lantern.
6.The villain soared on glider wings, then blew the silver whistle.
7.The villain tossed a smoke bomb, then unrolled the copper map.
8.The villain tossed a smoke bomb, then peered through the bronze spyglass.
9.The villain tossed a smoke bomb, then followed the gold compass.
10.The villain swung on a grappling hook, then lit up the ruby lantern.
11.The villain tossed a smoke bomb, then blew the silver whistle.
12.The villain blasted a wind blower, then peered through the bronze spyglass.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Rounding, Addition, Subtraction, Multiplication, Division
Reading level
grades 3-4
Theme
The Sky Bandit of Nimbus — set in The Floating Isles of Nimbus
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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