🔎 Spooky haunted house with ghGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
The Phantom of Whispering Pines
Someone has stolen the Grand Phantom's glowing green ectoplasm jar from the parlor! Without it, the ghosts will lose their spooky glow. As the junior detective, you must find out which of the manor's resident ghouls took it before the clock strikes midnight.
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | spooky spell | haunting gear | ghost form | ectoplasm trail | scare limit |
|---|---|---|---|---|---|
| Beatrice | glowing freeze | broken clock | phantom girl | glowing green mist | loud vacuums |
| Barnaby | poltergeist toss | floating lantern | phantom boy | foggy white smoke | loud vacuums |
| Jasper | slime splash | broken clock | phantom girl | foggy white smoke | salty crackers |
| Giddy | glowing freeze | dusty chains | phantom boy | foggy white smoke | loud vacuums |
| Thaddeus | glowing freeze | floating lantern | phantom girl | glowing green mist | bright flashlights |
| Rufus | shadow warp | floating lantern | phantom boy | dusty grey cobwebs | salty crackers |
| Felix | slime splash | floating lantern | phantom boy | dusty grey cobwebs | salty crackers |
| Tabitha | chilling howl | rusty key | phantom girl | foggy white smoke | salty crackers |
| Hattie | glowing freeze | creaky boots | phantom girl | foggy white smoke | loud vacuums |
| Simon | glowing freeze | rusty key | phantom boy | glowing green mist | salty crackers |
| Oliver | shadow warp | floating lantern | phantom boy | glowing green mist | bright flashlights |
| Prudence | chilling howl | creaky boots | phantom boy | foggy white smoke | loud vacuums |
| Pip | poltergeist toss | creaky boots | phantom girl | dusty grey cobwebs | salty crackers |
| Casper | glowing freeze | rusty key | phantom boy | foggy white smoke | loud vacuums |
| Gideon | poltergeist toss | dusty chains | phantom boy | foggy white smoke | salty crackers |
| Millicent | glowing freeze | floating lantern | phantom girl | glowing green mist | salty crackers |
| Silas | chilling howl | broken clock | phantom boy | glowing green mist | loud vacuums |
| Martha | chilling howl | broken clock | phantom girl | dusty grey cobwebs | salty crackers |
| Montgomery | shadow warp | floating lantern | phantom boy | foggy white smoke | salty crackers |
| Clara | shadow warp | creaky boots | phantom girl | glowing green mist | salty crackers |
| Penny | glowing freeze | creaky boots | phantom boy | foggy white smoke | loud vacuums |
Clue 1
Rounding
The manor's radar screen flashes with blurry numbers. It only shows the ghost's speed if you round the distance 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.
T
5000
600
400
T
5000
600
60
400
500
200
7000
400
300
700
7000
T
5000
600
3000
20
400
3000
2000
8000
300
T
5000
50
6000
400
50
Round 4,916 to the nearest thousandT
Round 54 to the nearest tenY
Round 3,454 to the nearest thousandA
Round 19 to the nearest tenV
Round 359 to the nearest hundredE
Round 1,623 to the nearest thousandR
Round 702 to the nearest hundredN
Round 6,178 to the nearest thousandK
Round 6,942 to the nearest thousandO
Round 58 to the nearest tenI
Round 8,385 to the nearest thousandU
Round 299 to the nearest hundredS
Round 508 to the nearest hundredF
Round 572 to the nearest hundredH
Round 245 to the nearest hundredD
0/15 letters found
Clue 2
Addition
You find dusty footprints in the hallway. You must add the tallies on the left wall to the ones on the right wall to count them all.
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
232
270
632
760
371
T
232
619
632
312
312
312
677
760
677
416
270
677
619
T
232
898
939
869
898
954
601
561
619
107 + 125 =T
538 + 401 =M
382 + 219 =R
398 + 234 =E
182 + 130 =S
248 + 429 =A
302 + 652 =Y
240 + 379 =N
207 + 354 =U
192 + 224 =P
314 + 584 =O
81 + 189 =H
170 + 201 =I
573 + 296 =B
370 + 390 =W
0/15 letters found
Clue 3
Subtraction
The grand grandfather clock is chiming loudly. You subtract the quiet chimes from the extra loud chimes to stop the noise and hear 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
197
398
581
724
398
586
703
T
197
852
247
316
173
852
586
653
431
586
654
766
692
247
816
654
654
653
703
285 - 88 =T
773 - 7 =D
450 - 19 =L
767 - 369 =H
509 - 262 =A
502 - 329 =F
401 - 85 =N
834 - 248 =O
848 - 267 =E
960 - 257 =S
1023 - 299 =G
964 - 112 =R
824 - 8 =C
906 - 253 =M
844 - 190 =U
833 - 141 =V
0/16 letters found
Clue 4
Multiplication facts (1-12)
The floating candelabras are arranged in neat rows. Multiply the number of rows by the candles in each row to light up the dark cellar.
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
144
60
32
70
49
25
7
32
70
77
77
42
W
144
120
121
22
60
15
45
70
20
60
12 × 12 =W
4 × 5 =K
11 × 7 =G
5 × 5 =N
10 × 7 =O
1 × 7 =D
5 × 3 =S
7 × 6 =Y
8 × 4 =F
6 × 10 =E
10 × 12 =H
11 × 11 =I
7 × 7 =U
5 × 9 =M
11 × 2 =T
0/15 letters found
Clue 5
Division facts (1-12) — the last clue
The ghosts left behind a pile of glowing candy corn. Divide the sweet treats equally among the jars to open the secret closet.
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
15 ÷ 3 = ?
30 ÷ 10 = ?
18 ÷ 2 = ?
77 ÷ 11 = ?
36 ÷ 3 = ?
121 ÷ 11 = ?
24 ÷ 6 = ?
24 ÷ 12 = ?
66 ÷ 11 = ?
88 ÷ 11 = ?
70 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain uses glowing freeze to lock the door, then rattles some dusty chains.
2.The villain creates a slime splash on the carpet, then rattles some dusty chains.
3.The villain triggers a poltergeist toss of books, then waves a floating lantern.
4.The villain uses glowing freeze to lock the door, then drops a rusty key.
5.The villain uses glowing freeze to lock the door, then stomps in creaky boots.
6.The villain triggers a poltergeist toss of books, then winds up a broken clock.
7.The villain uses glowing freeze to lock the door, then waves a floating lantern.
8.The villain performs a shadow warp through the wall, then stomps in creaky boots.
9.The villain makes a chilling howl to scare the cats, then stomps in creaky boots.
10.The villain makes a chilling howl to scare the cats, then winds up a broken clock.
11.The villain creates a slime splash on the carpet, then stomps in creaky boots.
12.The villain triggers a poltergeist toss of books, then rattles some dusty chains.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Phantom of Whispering Pines
Culprit: Giddy (glowing freeze · dusty chains · phantom boy · foggy white smoke · loud vacuums)
- Clue 1 (Rounding): "THE THIEF DOES NOT HAVE A RUSTY KEY"Round 4,916 to the nearest thousand = 5000 (T) · Round 54 to the nearest ten = 50 (Y) · Round 3,454 to the nearest thousand = 3000 (A) · Round 19 to the nearest ten = 20 (V) · Round 359 to the nearest hundred = 400 (E) · Round 1,623 to the nearest thousand = 2000 (R) · Round 702 to the nearest hundred = 700 (N) · Round 6,178 to the nearest thousand = 6000 (K) · Round 6,942 to the nearest thousand = 7000 (O) · Round 58 to the nearest ten = 60 (I) · Round 8,385 to the nearest thousand = 8000 (U) · Round 299 to the nearest hundred = 300 (S) · Round 508 to the nearest hundred = 500 (F) · Round 572 to the nearest hundred = 600 (H) · Round 245 to the nearest hundred = 200 (D)
- Clue 2 (Addition): "THE WITNESS SAW A PHANTOM BOY RUN"107 + 125 = 232 (T) · 538 + 401 = 939 (M) · 382 + 219 = 601 (R) · 398 + 234 = 632 (E) · 182 + 130 = 312 (S) · 248 + 429 = 677 (A) · 302 + 652 = 954 (Y) · 240 + 379 = 619 (N) · 207 + 354 = 561 (U) · 192 + 224 = 416 (P) · 314 + 584 = 898 (O) · 81 + 189 = 270 (H) · 170 + 201 = 371 (I) · 573 + 296 = 869 (B) · 370 + 390 = 760 (W)
- Clue 3 (Subtraction): "THE GHOST RAN FROM LOUD VACUUMS"285 - 88 = 197 (T) · 773 - 7 = 766 (D) · 450 - 19 = 431 (L) · 767 - 369 = 398 (H) · 509 - 262 = 247 (A) · 502 - 329 = 173 (F) · 401 - 85 = 316 (N) · 834 - 248 = 586 (O) · 848 - 267 = 581 (E) · 960 - 257 = 703 (S) · 1023 - 299 = 724 (G) · 964 - 112 = 852 (R) · 824 - 8 = 816 (C) · 906 - 253 = 653 (M) · 844 - 190 = 654 (U) · 833 - 141 = 692 (V)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND FOGGY WHITE SMOKE"12 × 12 = 144 (W) · 4 × 5 = 20 (K) · 11 × 7 = 77 (G) · 5 × 5 = 25 (N) · 10 × 7 = 70 (O) · 1 × 7 = 7 (D) · 5 × 3 = 15 (S) · 7 × 6 = 42 (Y) · 8 × 4 = 32 (F) · 6 × 10 = 60 (E) · 10 × 12 = 120 (H) · 11 × 11 = 121 (I) · 7 × 7 = 49 (U) · 5 × 9 = 45 (M) · 11 × 2 = 22 (T)
- Clue 5 (Division facts (1-12)): surviving statement (box 1) → Giddy15 ÷ 3 = 5 · 30 ÷ 10 = 3 · 18 ÷ 2 = 9 · 77 ÷ 11 = 7 · 36 ÷ 3 = 12 · 121 ÷ 11 = 11 · 24 ÷ 6 = 4 · 24 ÷ 12 = 2 · 66 ÷ 11 = 6 · 88 ÷ 11 = 8 · 70 ÷ 7 = 10
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Phantom of Whispering Pines — set in Whispering Pines Manor, a dusty old house full of creaking floors and floating candelabras
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects