Math Crackers
🔎 Monkey and PencilsGrade 3Reading: grades 3-4AdditionSubtractionRoundingMultiplicationDivision

The Great Pencil Caper of Jungle School

Someone snuck into the Canopy Art Studio and swiped the golden eraser! The suspect left behind messy doodles and jungle tracks. Match the clues to catch the mischievous monkey bandit.

Suspects

Possible suspects

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

21 of 21 still in play
NamePencil TypeJungle GearEyewearFur ColorDistraction
Penny Padcolored pencilbanana launcherwears gogglesdark brown fursqueaky toy
Pip Primatehb lead pencilcoconuts mortarwears visordark brown furbright flashlight
Professor Pawscolored penciltreehouse gliderwears visordark brown furbright flashlight
Graffy Gorillamechanical pencilbanana launcherwears visorsilver furloud whistle
Ellie Etchcarpenter penciltreehouse gliderwears gogglesdark brown furbright flashlight
Buster Brushcolored pencilcoconuts mortarwears visordark brown furbright flashlight
Dexter Drawcharcoal penciltreehouse gliderwears visordark brown furbright flashlight
Gizmo Babooncolored pencilvine lassowears visordark brown furbright flashlight
Felix Canvascarpenter pencilvine lassowears visorgolden furbright flashlight
Momo Scribbleshb lead pencilbanana launcherwears gogglesgolden furbright flashlight
Leonardo Lemurmechanical pencilbanana launcherwears gogglesdark brown fursqueaky toy
Vincent Volecolored pencilvine lassowears visorsilver furbright flashlight
Frida Tailcarpenter pencilbanana launcherwears gogglesdark brown furbright flashlight
Darwin Doodlehb lead pencilbanana launcherwears visordark brown fursqueaky toy
Artie Capuchincolored pencilcoconuts mortarwears visorgolden furloud whistle
Sammy Erasercharcoal penciljungle scooterwears visorsilver furbright flashlight
Pablo Pencilscolored penciljungle scooterwears visorgolden furbright flashlight
Gigi Graphitecharcoal pencilvine lassowears visordark brown furbright flashlight
Coco Sketchercarpenter pencilbanana launcherwears gogglessilver furbright flashlight
Barnaby Beakcharcoal penciljungle scooterwears visordark brown fursqueaky toy
Cleo Crayoncharcoal penciltreehouse gliderwears visorsilver furbright flashlight
Clue 1

Addition

Inspector Chimp adds up all the stray sketchbooks found on the classroom floor to find the first 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
214
935
661
785
429
725
725
423
429
864
682
862
661
220
864
862
T
214
962
220
661
423
T
214
379
661
661
935
862
962
220
661
930
725
429
682
661
379
138 + 76 =T
509 + 453 =U
569 + 366 =H
236 + 143 =R
524 + 340 =N
148 + 275 =A
363 + 362 =L
554 + 308 =O
356 + 574 =G
243 + 542 =V
406 + 255 =E
116 + 104 =S
238 + 444 =D
255 + 174 =I
0/14 letters found
Clue 2

Subtraction

The detective counts the remaining erasers after subtracting the missing ones to uncover another hint.

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
261
268
277
829
594
829
169
277
449
T
261
172
143
829
172
277
143
525
512
700
718
143
829
594
700
272
512
829
275
525
453 - 192 =T
529 - 4 =R
612 - 18 =U
861 - 349 =I
674 - 225 =C
289 - 12 =E
407 - 139 =H
998 - 298 =N
455 - 180 =O
232 - 63 =P
264 - 121 =A
343 - 171 =W
727 - 9 =G
552 - 280 =V
1072 - 243 =S
0/15 letters found
Clue 3

Rounding

A digital pencil counter on the wall rounds the nearby headcount to the nearest ten.

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
90
6000
700
9000
80
3000
800
7000
50
A
90
900
3000
50
9000
80
3000
800
900
800
60
2000
2000
300
200
800
3000
300
600
9000
50
50
A
90
9000
70
Round 94 to the nearest tenA
Round 46 to the nearest tenL
Round 83 to the nearest tenG
Round 5,998 to the nearest thousandB
Round 74 to the nearest tenN
Round 610 to the nearest hundredV
Round 319 to the nearest hundredE
Round 179 to the nearest hundredD
Round 834 to the nearest hundredT
Round 2,983 to the nearest thousandH
Round 9,432 to the nearest thousandI
Round 878 to the nearest hundredS
Round 1,552 to the nearest thousandP
Round 690 to the nearest hundredR
Round 59 to the nearest tenO
Round 6,780 to the nearest thousandF
0/16 letters found
Clue 4

Multiplication facts (1-12)

The team inspects four equal rows of colored pencils lined up on the art table.

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

D
81
56
77
121
80
77
55
72
22
6
4
77
72
56
44
9
48
6
25
22
48
56
77
25
20
48
D
81
48
44
121
9 × 9 =D
11 × 4 =S
2 × 11 =N
8 × 7 =A
5 × 11 =O
6 × 1 =F
7 × 11 =R
5 × 5 =T
9 × 1 =L
8 × 6 =E
11 × 11 =K
2 × 10 =H
1 × 4 =U
12 × 6 =W
10 × 8 =B
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

Inspector Chimp divides a large box of jumbo markers equally among the art tables to spot the final lead.

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
2 ÷ 2 = ?
77 ÷ 7 = ?
72 ÷ 12 = ?
132 ÷ 11 = ?
15 ÷ 3 = ?
14 ÷ 7 = ?
21 ÷ 3 = ?
8 ÷ 1 = ?
30 ÷ 3 = ?
108 ÷ 12 = ?
36 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain draws giant doodles, then fires coconut shells.
2.The villain scribbles blue lines, then launches banana peels.
3.The villain draws giant doodles, then zooms off on a glider.
4.The villain scribbles blue lines, then fires coconut shells.
5.The villain scribbles blue lines, then zooms off on a glider.
6.The villain scribbles blue lines, then swings on jungle vines.
7.The villain draws giant doodles, then swings on jungle vines.
8.The villain shades dark shadows, then zooms off on a glider.
9.The villain draws giant doodles, then zips around on a scooter.
10.The villain shades dark shadows, then zips around on a scooter.
11.The villain shades dark shadows, then swings on jungle vines.
12.The villain sketches secret maps, then fires coconut shells.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Addition, Subtraction, Rounding, Multiplication, Division
Reading level
grades 3-4
Theme
The Great Pencil Caper of Jungle School — set in Canopy Art Studio
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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