Math Crackers
Grade 3Reading: grades 3-4SubtractionRoundingAdditionMultiplicationDivision

The Jungle Basecamp Mystery

Someone snuck into the camp and snatched the golden sun dial! Help Scout Leader Sam solve the clues, clear the innocent camp members, and find out who took it!

Suspects

Possible suspects

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

21 of 21 still in play
NameMain ToolSide GearHandednessHairstyleSecret Weakness
Eli Hayesshield glidenet trapright handedblonde buzzcutbright flashlight
Chloe Bennettshield glideglint mirrorright handedred braiditchy pepper dust
Finn Walkershield glideglint mirrorleft handedred braidbright flashlight
Sienna Colegrapple hooksmoke bombright handedblonde buzzcutbright flashlight
Ruby Stonetorch flaresmoke bombright handedred braidloud whistle
Nora Pateltorch flaredecoy whistleleft handedblonde buzzcutitchy pepper dust
Wren Pricetorch flaredecoy whistleleft handedred braiditchy pepper dust
Hugo Blackvine swingdecoy whistleleft handedblonde buzzcutitchy pepper dust
Jasper Kingtorch flaresmoke bombleft handedred braiditchy pepper dust
Zoe Chengrapple hookrope dartleft handedblack ponytailitchy pepper dust
Cleo Youngshield gliderope dartleft handedred braiditchy pepper dust
Freya Rossgrapple hooknet trapleft handedred braiditchy pepper dust
Ivy Zhangshield glideglint mirrorright handedred braidloud whistle
Benji Fordgrapple hooksmoke bombleft handedred braiditchy pepper dust
Toby Brooksshield glideglint mirrorleft handedblonde buzzcutbright flashlight
Leo Vancevine swingdecoy whistleleft handedred braiditchy pepper dust
Sam Riverashield glidesmoke bombright handedblack ponytailbright flashlight
Felix Shawgrapple hooknet trapleft handedblonde buzzcutitchy pepper dust
Maya Cruzshield glidedecoy whistleright handedblonde buzzcutbright flashlight
Ezra Knighttorch flarenet trapleft handedblack ponytailloud whistle
Gemma Hilltorch flarerope dartleft handedblonde buzzcutbright flashlight
Clue 1

Subtraction

You count the trail maps before and after the camp raid to see how many were taken.

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
558
429
252
536
460
294
294
347
460
825
844
637
252
246
825
637
T
558
247
246
252
347
844
252
457
637
816
596
429
460
246
T
558
294
252
599 - 41 =T
542 - 296 =S
858 - 42 =Y
864 - 39 =N
300 - 53 =U
597 - 250 =A
953 - 109 =D
742 - 206 =V
847 - 390 =C
1006 - 369 =O
253 - 1 =E
910 - 314 =W
564 - 104 =I
522 - 228 =L
789 - 360 =H
0/15 letters found
Clue 2

Rounding

The radio scanner rounds the bandit jump distance to the nearest ten yards.

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
40
80
9000
400
4000
700
20
20
20
A
40
80
A
40
8000
700
500
400
5000
A
40
4000
6000
700
6000
500
300
300
400
900
30
9000
4000
400
Round 37 to the nearest tenA
Round 687 to the nearest hundredE
Round 18 to the nearest tenS
Round 3,733 to the nearest thousandN
Round 7,612 to the nearest thousandL
Round 6,113 to the nearest thousandD
Round 452 to the nearest hundredF
Round 855 to the nearest hundredP
Round 83 to the nearest tenW
Round 435 to the nearest hundredT
Round 340 to the nearest hundredO
Round 26 to the nearest tenR
Round 4,993 to the nearest thousandH
Round 9,461 to the nearest thousandI
0/14 letters found
Clue 3

Addition

You add up the gold coins dropped near the riverbank to find 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.

T
348
959
476
400
225
673
673
747
225
472
968
472
476
476
512
476
921
934
683
313
405
415
476
415
415
476
683
921
824
968
T
348
115 + 233 =T
155 + 317 =N
465 + 359 =U
253 + 259 =Z
409 + 264 =L
129 + 96 =I
226 + 250 =E
216 + 184 =V
278 + 405 =R
525 + 409 =F
381 + 366 =A
100 + 213 =O
246 + 159 =M
281 + 640 =D
361 + 607 =S
626 + 333 =H
231 + 184 =P
0/17 letters found
Clue 4

Multiplication facts (1-12)

The footprints are lined up in equal rows across the muddy trail.

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
12
48
132
84
22
A
12
66
48
121
144
48
A
12
25
84
77
A
12
121
50
132
70
144
55
25
144
22
132
42
66
25
132
12 × 1 =A
7 × 10 =F
4 × 12 =R
5 × 11 =O
11 × 12 =E
2 × 11 =H
6 × 7 =V
12 × 12 =T
5 × 5 =N
11 × 11 =S
11 × 6 =I
10 × 5 =L
7 × 12 =D
11 × 7 =W
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

You share the remaining supply crates equally among the scout huts.

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
24 ÷ 4 = ?
16 ÷ 2 = ?
9 ÷ 9 = ?
9 ÷ 1 = ?
44 ÷ 4 = ?
18 ÷ 6 = ?
72 ÷ 6 = ?
55 ÷ 11 = ?
40 ÷ 10 = ?
50 ÷ 5 = ?
28 ÷ 4 = ?
Step 2 — cross out the sentence with each answer
1.The villain flared a bright torch, then tossed a smoke bomb.
2.The villain glided on a shield, then snapped a rope dart.
3.The villain fired a grapple hook, then snapped a rope dart.
4.The villain flared a bright torch, then snapped a rope dart.
5.The villain swung on a vine, then blew a decoy whistle.
6.The villain fired a grapple hook, then tossed a smoke bomb.
7.The villain swung on a vine, then snapped a rope dart.
8.The villain fired a grapple hook, then threw a net trap.
9.The villain dashed with a compass, then snapped a rope dart.
10.The villain flared a bright torch, then flashed a glint mirror.
11.The villain swung on a vine, then flashed a glint mirror.
12.The villain swung on a vine, then threw a net trap.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

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

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