Math Mysteries
🔎 A steamy romance affair betwGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Case of the Ruined Rendezvous

The golden locket of eternal devotion has vanished from Heartbreak Manor! It was stolen right before the big moonlit proposal. The dramatic lovers are in tears, and we must find out who ruined the secret date!

Suspects

Possible suspects

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

21 of 21 still in play
NameFlirting StyleSecret HobbyWitness ReportHair EvidenceRomantic Weakness
Baroness Scarletthand holdingplaying the harpbeautiful ladyflowing blonde locksallergy to roses
Sir Tristanhand holdingplaying the harpbeautiful ladyslicked back blackscared of commitment
Duchess Sophiagift givingplaying the harpbeautiful ladyslicked back blackscared of commitment
Lady Genevievedeep staringbaking strawberry tartsbeautiful ladyslicked back blackallergy to roses
Count Gabrielhand holdingbaking strawberry tartsbeautiful ladyslicked back blackdistracted by chocolate
Lord Charleshand holdingwriting love lettershandsome gentlemanslicked back blackdistracted by chocolate
Duke Julianhand holdingarranging red rosesbeautiful ladyslicked back blackdistracted by chocolate
Sir Rodericksappy poetrywriting sad songsbeautiful ladyflowing blonde locksscared of commitment
Lady Victoriadramatic sighingwriting sad songshandsome gentlemanflowing blonde locksscared of commitment
Baroness Viviennedramatic sighingplaying the harpbeautiful ladycurly red hairscared of commitment
Baroness Gwendolyndramatic sighingarranging red rosesbeautiful ladyslicked back blackallergy to roses
Count Alexandersappy poetryplaying the harpbeautiful ladyflowing blonde locksdistracted by chocolate
Duke Nicholashand holdingwriting love lettersbeautiful ladyslicked back blackdistracted by chocolate
Lady Isabelladramatic sighingplaying the harpbeautiful ladyslicked back blackdistracted by chocolate
Baroness Claradramatic sighingwriting sad songshandsome gentlemanslicked back blackdistracted by chocolate
Count Valentinegift givingarranging red rosesbeautiful ladyslicked back blackdistracted by chocolate
Duchess Penelopegift givingwriting sad songsbeautiful ladyflowing blonde locksallergy to roses
Sir Montgomerydramatic sighingwriting sad songshandsome gentlemanslicked back blackscared of commitment
Duchess Evelyndeep staringwriting love lettersbeautiful ladycurly red hairdistracted by chocolate
Lady Beatricedramatic sighingwriting sad songsbeautiful ladyslicked back blackscared of commitment
Duchess Eleanordeep staringwriting sad songsbeautiful ladycurly red hairscared of commitment
Clue 1

Rounding

The love meter on the garden wall is a bit rusty. It rounds the passion score to the nearest ten. The dial pointed to eighty, which gave us our first 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
90
3000
600
2000
9000
800
40
30
7000
8000
600
80
50
8000
T
90
200
40
400
600
80
T
90
2000
40
700
200
600
2000
2000
4000
T
90
40
2000
T
90
80
Round 92 to the nearest tenT
Round 604 to the nearest hundredE
Round 2,458 to the nearest thousandR
Round 51 to the nearest tenN
Round 748 to the nearest hundredW
Round 41 to the nearest tenA
Round 8,337 to the nearest thousandO
Round 30 to the nearest tenL
Round 797 to the nearest hundredV
Round 4,093 to the nearest thousandY
Round 198 to the nearest hundredB
Round 2,694 to the nearest thousandH
Round 397 to the nearest hundredK
Round 7,423 to the nearest thousandD
Round 8,795 to the nearest thousandI
Round 77 to the nearest tenS
0/16 letters found
Clue 2

Addition

We found a pile of torn love letters. We added the three scraps from the fountain to the four scraps from the bench to find the secret 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
537
648
368
861
268
977
512
676
676
368
348
T
537
512
912
624
368
460
T
537
892
348
348
512
460
624
551
829
368
861
348
347
355
368
283 + 254 =T
210 + 158 =E
123 + 224 =U
278 + 398 =L
235 + 113 =F
359 + 553 =S
297 + 215 =A
250 + 301 =Y
520 + 372 =O
388 + 589 =V
272 + 188 =N
242 + 113 =M
272 + 589 =R
563 + 266 =P
223 + 401 =C
115 + 153 =I
310 + 338 =H
0/17 letters found
Clue 3

Subtraction

The butler started with twelve chocolate truffles on a silver tray. The rival ate some, leaving only five. The missing chocolates pointed to 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
138
783
253
739
324
169
314
241
241
253
324
253
283
253
169
739
T
138
783
622
594
286
744
314
169
846
230
846
594
324
739
778
846
169
360 - 222 =T
858 - 119 =Y
473 - 304 =R
451 - 168 =V
463 - 149 =O
971 - 188 =H
510 - 224 =G
1041 - 195 =A
675 - 81 =N
604 - 363 =P
635 - 382 =E
528 - 204 =D
1089 - 345 =F
931 - 153 =B
931 - 309 =I
292 - 62 =C
0/16 letters found
Clue 4

Multiplication facts (1-12)

The florist delivered boxes of red roses. There were three boxes with six roses in each box. Counting them all up revealed the hair color.

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
48
66
64
15
63
144
121
121
100
36
7
12
100
49
36
15
144
132
12
66
84
49
30
7
45
49
30
30
15
W
48
6 × 8 =W
12 × 11 =T
7 × 7 =I
2 × 6 =H
10 × 3 =L
7 × 1 =K
12 × 7 =S
8 × 8 =F
7 × 9 =U
4 × 9 =R
12 × 12 =N
11 × 11 =D
3 × 5 =O
6 × 11 =E
9 × 5 =P
10 × 10 =A
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

The lovers wanted to share eighteen strawberry tarts equally between their three favorite guests. Sharing them out fairly led us to 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
4 ÷ 2 = ?
6 ÷ 1 = ?
9 ÷ 1 = ?
27 ÷ 9 = ?
16 ÷ 4 = ?
50 ÷ 10 = ?
50 ÷ 5 = ?
84 ÷ 7 = ?
33 ÷ 3 = ?
56 ÷ 7 = ?
5 ÷ 5 = ?
Step 2 — cross out the sentence with each answer
1.The villain held hands near the fountain, then sang a lonely song in the rain.
2.The villain held hands near the fountain, then scattered fresh red roses everywhere.
3.The villain recited a very sappy poem, then sang a lonely song in the rain.
4.The villain gave a giant shiny gift, then sang a lonely song in the rain.
5.The villain recited a very sappy poem, then scattered fresh red roses everywhere.
6.The villain sighed very dramatically, then played a sad tune on the harp.
7.The villain gave a giant shiny gift, then scattered fresh red roses everywhere.
8.The villain sighed very dramatically, then scattered fresh red roses everywhere.
9.The villain held hands near the fountain, then penned a secret love letter.
10.The villain stared deeply into their eyes, then penned a secret love letter.
11.The villain recited a very sappy poem, then baked a batch of sweet strawberry tarts.
12.The villain held hands near the fountain, then played a sad tune on the harp.
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 Case of the Ruined Rendezvous — set in Heartbreak Manor
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects
The Case of the Ruined Rendezvous · Grade 3 Math Mystery — Math Mysteries