Math Crackers
🐱 CatsGrade 3Reading: grades 3-4AdditionWord problemsRoundingSubtractionDivision

The Great Tuna Trophy Heist

Oh no! The golden Tuna Trophy has been swiped from the Whisker City Museum! The Meow Bandit left muddy paw prints all over the glass display case. It is up to you and the Purr Patrol to find the sneaky cat who did this!

Suspects

Possible suspects

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

21 of 21 still in play
NameFavorite ToySuper SkillWears CollarFur ColorDistraction
MiloSqueaky MouseWall ClimbingBlue CollarOrange TabbyCardboard Box
SassySqueaky MouseSuper SniffingRed CollarCalico PatchesCardboard Box
MittensFeather WandSilent SneakingRed CollarCalico PatchesCatnip Mist
MarieSqueaky MouseSilent SneakingRed CollarMidnight BlackCatnip Mist
FelixYarn BallSilent SneakingBlue CollarMidnight BlackCatnip Mist
TiggerLaser PointerWall ClimbingRed CollarOrange TabbyCatnip Mist
LunaYarn BallSuper SniffingBlue CollarCalico PatchesCardboard Box
SmokeyYarn BallNight VisionRed CollarMidnight BlackCatnip Mist
FluffyYarn BallSilent SneakingRed CollarMidnight BlackTuna Flakes
OliverLaser PointerNight VisionBlue CollarOrange TabbyTuna Flakes
ChloeSqueaky MouseWall ClimbingRed CollarCalico PatchesTuna Flakes
NalaLaser PointerNight VisionRed CollarMidnight BlackTuna Flakes
CleoCrinkle BallHigh JumpingRed CollarMidnight BlackCatnip Mist
Tom CatYarn BallNight VisionBlue CollarCalico PatchesCardboard Box
SylvesterYarn BallSilent SneakingBlue CollarCalico PatchesTuna Flakes
WhiskersYarn BallWall ClimbingRed CollarMidnight BlackCatnip Mist
DuchessCrinkle BallSilent SneakingBlue CollarOrange TabbyCatnip Mist
SimbaFeather WandHigh JumpingRed CollarOrange TabbyCatnip Mist
FigaroSqueaky MouseSuper SniffingBlue CollarMidnight BlackCatnip Mist
BootsCrinkle BallWall ClimbingRed CollarMidnight BlackCatnip Mist
ShadowYarn BallNight VisionRed CollarCalico PatchesCatnip Mist
Clue 1

Addition

Detective Whiskers counts the muddy pawprints leading to the museum vault. Add the pawprints on the floor to the prints on the wall 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
854
490
551
856
666
737
368
407
T
854
368
757
551
511
737
757
T
854
490
666
907
551
737
407
858
490
T
854
907
407
511
407
757
737
570 + 284 =T
516 + 241 =O
314 + 423 =N
502 + 356 =G
233 + 257 =H
183 + 368 =E
133 + 235 =D
306 + 360 =A
592 + 264 =B
631 + 276 =V
271 + 136 =I
266 + 245 =S
0/12 letters found
Clue 2

Word problems

A friendly alley cat has a puzzle for us. Solve his tricky word problem about stolen fish treats to unlock the next secret paper!

Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.

Awitnesssawthevillainwas
R
53
9
80
51
11
27
27
64
R
53
.
Detective Whiskers found 51 collar bell yesterday and 2 more today. How many collar bell in all?R
There were 39 collar bell. 28 were used up. How many collar bell are left?O
Detective Whiskers found 9 fish treat yesterday and 42 more today. How many fish treat in all?C
Detective Whiskers found 21 yarn ball yesterday and 43 more today. How many yarn ball in all?A
Detective Whiskers found 17 scratching post yesterday and 10 more today. How many scratching post in all?L
Detective Whiskers lined up 10 rows of 8 scratching post. How many scratching post in all?D
Detective Whiskers found 2 yarn ball yesterday and 7 more today. How many yarn ball in all?E
0/7 letters found
Clue 3

Rounding

The museum weight sensor tripped, but it only shows numbers rounded to the nearest ten. Round the weight of the bandit to get the security 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.

U
4000
9000
90
5000
700
20
60
30
2000
80
30
9000
20
20
600
9000
20
600
2000
20
400
90
20
400
30
90
300
Round 4,267 to the nearest thousandU
Round 4,606 to the nearest thousandC
Round 654 to the nearest hundredA
Round 8,776 to the nearest thousandS
Round 79 to the nearest tenM
Round 379 to the nearest hundredH
Round 22 to the nearest tenT
Round 26 to the nearest tenI
Round 644 to the nearest hundredO
Round 61 to the nearest tenN
Round 94 to the nearest tenE
Round 256 to the nearest hundredF
Round 2,321 to the nearest thousandP
0/13 letters found
Clue 4

Subtraction

There were twelve golden fish stickers on the trophy case, but some are gone. Subtract the remaining stickers to find the hidden 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.

W
181
253
895
173
437
673
640
689
126
640
673
126
842
880
433
884
371
478
543
541
895
437
486
237 - 56 =W
962 - 67 =F
686 - 253 =T
703 - 332 =L
798 - 257 =K
837 - 294 =C
1199 - 357 =G
550 - 377 =O
834 - 397 =U
588 - 102 =R
1240 - 356 =B
1191 - 311 =H
192 - 66 =I
541 - 288 =E
836 - 196 =D
844 - 366 =A
1040 - 367 =N
839 - 150 =M
0/18 letters found
Clue 5

Division facts (1-12) — the last clue

The Purr Patrol needs to divide their catnip treats equally among the three search teams. Divide the treats to crack 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
18 ÷ 3 = ?
18 ÷ 9 = ?
56 ÷ 8 = ?
88 ÷ 8 = ?
3 ÷ 3 = ?
15 ÷ 3 = ?
15 ÷ 5 = ?
36 ÷ 9 = ?
63 ÷ 7 = ?
110 ÷ 11 = ?
12 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain patted the crinkle ball, then spotted the trophy in the dark.
2.The villain pounced on the mouse, then crept past the sleepy guard dog.
3.The villain pounced on the mouse, then spotted the trophy in the dark.
4.The villain pounced on the mouse, then sniffed out the secret treats.
5.The villain patted the crinkle ball, then crept past the sleepy guard dog.
6.The villain patted the crinkle ball, then vaulted onto the high shelf.
7.The villain patted the crinkle ball, then scaled the museum wall.
8.The villain rolled the yarn, then scaled the museum wall.
9.The villain patted the crinkle ball, then sniffed out the secret treats.
10.The villain rolled the yarn, then crept past the sleepy guard dog.
11.The villain pounced on the mouse, then scaled the museum wall.
12.The villain chased the laser dot, then sniffed out the secret treats.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Addition, Word problems, Rounding, Subtraction, Division
Reading level
grades 3-4
Theme
The Great Tuna Trophy Heist — set in The Whisker City Museum of Fine Fish
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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