Math Crackers
🔎 Pig lattinGrade 4Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Case of the Secret Igpay

Someone snuck into the Oinktown Cipher Academy and hid the golden dictionary! Use Pig Latin clues and math skills to track down the sneaky culprit before graduation.

Suspects

Possible suspects

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

21 of 21 still in play
NameSpecial MoveSecret GadgetObservational TellHair StyleSilly Weakness
Polly PorkerConsonant FlipDecoder RingWears Blue ScarfBraided Brown HairLoud Pig Grunts
Penny PigletConsonant FlipGolden MarkerWears Red ScarfBraided Brown HairSilly Rhymes
Sammy SwineVowel ShiftGolden MarkerWears Red ScarfCurly Pink WigLoud Pig Grunts
Hattie HoofWord ReversePiggy BadgeWears Red ScarfSpiky Silver HairSilly Rhymes
Sasha SowVowel ShiftSecret WhistleWears Blue ScarfBraided Brown HairSalty Snacks
Hogarth SnoutVowel ShiftPiggy BadgeWears Red ScarfBraided Brown HairLoud Pig Grunts
Gabe GrunterVowel ShiftPiggy BadgeWears Blue ScarfBraided Brown HairSilly Rhymes
Chloe CurlySyllable SwapSecret WhistleWears Blue ScarfBraided Brown HairSilly Rhymes
Wilbur MuddyConsonant FlipPiggy BadgeWears Blue ScarfSpiky Silver HairSalty Snacks
Barnaby BoarConsonant FlipSnout CompassWears Blue ScarfCurly Pink WigLoud Pig Grunts
Pippa PigSyllable SwapGolden MarkerWears Blue ScarfCurly Pink WigLoud Pig Grunts
Leo LetterSyllable SwapDecoder RingWears Red ScarfCurly Pink WigLoud Pig Grunts
Gideon GlazeConsonant FlipSnout CompassWears Blue ScarfCurly Pink WigSilly Rhymes
Fiona FarmOink BlastPiggy BadgeWears Blue ScarfCurly Pink WigLoud Pig Grunts
Petunia PinkSyllable SwapSecret WhistleWears Blue ScarfCurly Pink WigLoud Pig Grunts
Bella BaconWord ReversePiggy BadgeWears Blue ScarfCurly Pink WigLoud Pig Grunts
Kobe KerfuffleWord ReversePiggy BadgeWears Blue ScarfSpiky Silver HairSalty Snacks
Bruno OinkerWord ReverseGolden MarkerWears Red ScarfSpiky Silver HairSalty Snacks
Jenny JabberWord ReversePiggy BadgeWears Blue ScarfCurly Pink WigSalty Snacks
Toby TrotterVowel ShiftSecret WhistleWears Red ScarfBraided Brown HairSalty Snacks
Oinkly OliverVowel ShiftGolden MarkerWears Blue ScarfSpiky Silver HairSalty Snacks
Clue 1

Rounding

The digital cipher board only displays approximate numbers. Round the code counts to solve the first mystery!

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
200
90
700
2000
3700
2000
370
700
3000
T
200
4300
1100
700
2000
900
1100
T
200
90
2300
110
700
2300
2000
700
3000
130
700
T
200
500
90
300
2000
T
200
1300
700
Round 211 to the nearest hundredT
Round 660 to the nearest hundredE
Round 1,262 to the nearest hundredL
Round 107 to the nearest tenV
Round 3,393 to the nearest thousandC
Round 510 to the nearest hundredW
Round 370 to the nearest tenP
Round 131 to the nearest tenR
Round 89 to the nearest tenH
Round 4,329 to the nearest hundredD
Round 2,305 to the nearest hundredA
Round 3,723 to the nearest hundredU
Round 301 to the nearest hundredI
Round 863 to the nearest hundredN
Round 1,962 to the nearest thousandS
Round 1,104 to the nearest hundredO
0/16 letters found
Clue 2

Addition

We found secret notes scattered in two classrooms. Add all the word counts together to decode 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.

W
4102
6465
5259
7332
7083
8176
8176
7332
2571
5259
6465
4713
7083
8367
8336
8367
8336
8215
8458
2180
4145
7901
7083
8176
4713
8336
8215
3672
1854 + 2248 =W
4270 + 3906 =S
1749 + 3510 =T
3835 + 3248 =E
1735 + 1937 =F
1237 + 1334 =O
2349 + 2364 =C
2761 + 1384 =L
4426 + 3475 =U
4062 + 4396 =K
4076 + 3256 =N
5471 + 2744 =R
2997 + 5370 =D
2848 + 5488 =A
4214 + 2251 =I
1151 + 1029 =B
0/16 letters found
Clue 3

Subtraction

The villain dropped a pouch of secret tokens. Subtract the missing ones from the total 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
7481
1761
7966
8876
4622
1328
1328
7003
4622
5321
1587
7003
5321
7003
1630
7003
3085
3915
1587
2736
2333
1328
2736
2069
3089
8273
4622
2164
2164
1587
2069
5321
T
7481
5099
9446 - 1965 =T
8798 - 1795 =A
2131 - 501 =W
10817 - 1941 =V
6516 - 3780 =O
5346 - 3759 =R
5747 - 3583 =G
5116 - 1201 =F
8002 - 3380 =I
4437 - 1352 =Y
9379 - 1106 =P
6151 - 3062 =D
2425 - 92 =M
7617 - 2296 =N
6460 - 4391 =U
4718 - 2957 =H
10487 - 2521 =E
7723 - 2624 =S
4845 - 3517 =L
0/19 letters found
Clue 4

Multiplication facts (1-12)

The decoder rings are arranged in neat equal rows on the wall. Multiply to count them all up!

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

F
84
90
55
18
36
100
40
90
18
50
64
55
144
40
60
12
4
18
121
2
4
50
3
56
144
100
18
36
12 × 7 =F
1 × 12 =P
11 × 11 =K
1 × 4 =I
10 × 6 =Y
7 × 8 =T
5 × 11 =U
8 × 8 =C
10 × 10 =A
9 × 10 =O
9 × 2 =N
1 × 3 =S
9 × 4 =D
12 × 12 =R
10 × 5 =G
5 × 8 =L
2 × 1 =W
0/17 letters found
Clue 5

Division facts (1-12) — the last clue

The hog club members need to share the pig latin rulebooks equally. Divide the books into groups 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
12 ÷ 2 = ?
90 ÷ 9 = ?
25 ÷ 5 = ?
6 ÷ 3 = ?
21 ÷ 3 = ?
48 ÷ 6 = ?
44 ÷ 11 = ?
54 ÷ 6 = ?
10 ÷ 10 = ?
6 ÷ 2 = ?
121 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain flipped the consonants, then signaled a buddy with a secret whistle.
2.The villain blasted an oink wave, then drew on the map with a golden marker.
3.The villain swapped the syllables, then flashed a shiny piggy badge.
4.The villain swapped the syllables, then signaled a buddy with a secret whistle.
5.The villain flipped the consonants, then checked the path with a snout compass.
6.The villain reversed the whole word, then flashed a shiny piggy badge.
7.The villain shifted every vowel, then drew on the map with a golden marker.
8.The villain reversed the whole word, then signaled a buddy with a secret whistle.
9.The villain shifted every vowel, then checked the path with a snout compass.
10.The villain swapped the syllables, then drew on the map with a golden marker.
11.The villain reversed the whole word, then drew on the map with a golden marker.
12.The villain blasted an oink wave, then flashed a shiny piggy badge.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Rounding, Addition, Subtraction, Multiplication, Division
Reading level
grades 3-4
Theme
The Case of the Secret Igpay — set in Oinktown Cipher Academy
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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