🔎 Lost Colony of RoanokeGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision
The Secret of Roanoke Island
Governor John White has returned to Roanoke Island, but the colony's master map is missing from the fort! Someone left hidden carved clues and snuck into the coastal fog. Help the settlement solve the mystery and identify the shadowy rogue!
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 | Specialty Skill | Scouting Tool | Stance | Feather Color | Distraction |
|---|---|---|---|---|---|
| John Sampson | Reading Maps | Iron Key | Right Handed | Brown Feather | Fresh Bread |
| Manteo | Carving Trees | Pocket Sundial | Right Handed | Black Feather | Bright Flash |
| George Howe | Carving Trees | Spyglass | Right Handed | Brown Feather | Bright Flash |
| Jane Jones | Tracking Footprints | Brass Compass | Left Handed | Brown Feather | Bright Flash |
| Thomas Stevens | Rigging Sails | Leather Journal | Right Handed | Brown Feather | Bright Flash |
| Robert Hole | Reading Maps | Spyglass | Right Handed | Brown Feather | Bright Flash |
| James Platt | Carving Trees | Leather Journal | Right Handed | Brown Feather | Bright Flash |
| Thomas Smart | Signaling Lanterns | Spyglass | Left Handed | Grey Feather | Bright Flash |
| Eleanor Dare | Carving Trees | Spyglass | Left Handed | Grey Feather | Bright Flash |
| Simon Fernandes | Tracking Footprints | Pocket Sundial | Right Handed | Grey Feather | Bright Flash |
| Margaret Lawrence | Rigging Sails | Leather Journal | Left Handed | Black Feather | Sea Shanty |
| Joyce Archard | Reading Maps | Pocket Sundial | Left Handed | Black Feather | Bright Flash |
| Elizabeth Viccars | Carving Trees | Pocket Sundial | Right Handed | Brown Feather | Bright Flash |
| Ananias Dare | Carving Trees | Spyglass | Left Handed | Grey Feather | Sea Shanty |
| Roger Prat | Reading Maps | Leather Journal | Right Handed | Grey Feather | Sea Shanty |
| Cuthbert Howe | Signaling Lanterns | Brass Compass | Right Handed | Grey Feather | Sea Shanty |
| Richard Berry | Rigging Sails | Spyglass | Left Handed | Grey Feather | Fresh Bread |
| Wanchese | Reading Maps | Leather Journal | Right Handed | Grey Feather | Fresh Bread |
| Dionyse Harvie | Rigging Sails | Pocket Sundial | Right Handed | Black Feather | Bright Flash |
| Alice Chapman | Reading Maps | Pocket Sundial | Right Handed | Black Feather | Bright Flash |
| John White | Tracking Footprints | Iron Key | Right Handed | Brown Feather | Bright Flash |
Clue 1
Rounding
Governor White reads a weather log where all tide levels were rounded to the nearest ten feet.
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
700
3000
400
500
200
4000
30
400
90
200
400
20
80
200
T
700
9000
600
500
500
8000
600
20
300
8000
4000
70
600
20
20
Round 706 to the nearest hundredT
Round 601 to the nearest hundredA
Round 8,851 to the nearest thousandC
Round 292 to the nearest hundredP
Round 214 to the nearest hundredO
Round 82 to the nearest tenN
Round 29 to the nearest tenU
Round 72 to the nearest tenL
Round 474 to the nearest hundredR
Round 19 to the nearest tenS
Round 86 to the nearest tenD
Round 4,253 to the nearest thousandG
Round 8,227 to the nearest thousandY
Round 375 to the nearest hundredE
Round 3,252 to the nearest thousandH
0/15 letters found
Clue 2
Addition
The settlers count extra timber logs brought to repair the outer palisade wall.
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
862
841
573
327
536
316
536
A
862
276
988
688
988
276
643
316
540
536
829
A
862
722
340
688
244
316
643
276
316
536
688
327
A
862
316
688
564 + 298 =A
325 + 663 =D
529 + 312 =R
283 + 253 =H
378 + 451 =W
326 + 396 =S
150 + 190 =L
342 + 301 =O
465 + 223 =E
120 + 156 =N
93 + 151 =F
126 + 201 =G
341 + 232 =I
370 + 170 =C
204 + 112 =T
0/15 letters found
Clue 3
Subtraction
The lookout calculates how many food barrels remain after subtracting what was used.
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
408
268
685
524
319
712
179
341
845
A
408
736
712
736
507
854
854
508
151
718
179
712
151
685
854
319
326
151
A
408
752
A
408
843
478 - 70 =A
354 - 203 =E
776 - 252 =I
1110 - 267 =Y
1022 - 168 =O
978 - 293 =R
1037 - 285 =W
724 - 6 =D
621 - 280 =F
325 - 6 =G
740 - 28 =H
975 - 130 =L
264 - 85 =T
536 - 268 =B
891 - 384 =P
750 - 14 =S
891 - 383 =K
583 - 257 =U
0/18 letters found
Clue 4
Multiplication facts (1-12)
The carpenter counts the total nails stored in equal boxes along the dock.
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
3
49
121
56
110
60
36
21
A
3
18
80
21
121
110
A
3
90
36
56
35
60
28
49
44
18
80
21
4
56
54
90
3 × 1 =A
9 × 10 =S
6 × 6 =F
5 × 7 =U
7 × 4 =D
6 × 9 =G
7 × 3 =E
11 × 11 =R
6 × 3 =T
11 × 10 =W
7 × 7 =B
4 × 11 =Y
4 × 1 =L
8 × 10 =H
7 × 8 =O
6 × 10 =N
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The crew divides a fresh batch of hardtack biscuits equally among the watch guards.
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
120 ÷ 10 = ?
120 ÷ 12 = ?
12 ÷ 4 = ?
24 ÷ 4 = ?
40 ÷ 10 = ?
54 ÷ 6 = ?
9 ÷ 9 = ?
8 ÷ 4 = ?
16 ÷ 2 = ?
77 ÷ 7 = ?
14 ÷ 2 = ?
Step 2 — cross out the sentence with each answer
1.The villain swung a lantern from the watchtower, then unlocked the chest with an iron key.
2.The villain swung a lantern from the watchtower, then read the pocket sundial.
3.The villain followed tracks across the sandy shore, then unlocked the chest with an iron key.
4.The villain followed tracks across the sandy shore, then checked the brass compass.
5.The villain carved marks into the tree trunk, then read the pocket sundial.
6.The villain swung a lantern from the watchtower, then scribbled notes in the leather journal.
7.The villain hid the map inside a hollow log, then scribbled notes in the leather journal.
8.The villain followed tracks across the sandy shore, then read the pocket sundial.
9.The villain followed tracks across the sandy shore, then looked through the spyglass.
10.The villain untied the ropes on the harbor sailboat, then scribbled notes in the leather journal.
11.The villain untied the ropes on the harbor sailboat, then read the pocket sundial.
12.The villain carved marks into the tree trunk, then scribbled notes in the leather journal.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Secret of Roanoke Island
Culprit: Elizabeth Viccars (Carving Trees · Pocket Sundial · Right Handed · Brown Feather · Bright Flash)
- Clue 1 (Rounding): "THE ROGUE DOES NOT CARRY A SPYGLASS"Round 706 to the nearest hundred = 700 (T) · Round 601 to the nearest hundred = 600 (A) · Round 8,851 to the nearest thousand = 9000 (C) · Round 292 to the nearest hundred = 300 (P) · Round 214 to the nearest hundred = 200 (O) · Round 82 to the nearest ten = 80 (N) · Round 29 to the nearest ten = 30 (U) · Round 72 to the nearest ten = 70 (L) · Round 474 to the nearest hundred = 500 (R) · Round 19 to the nearest ten = 20 (S) · Round 86 to the nearest ten = 90 (D) · Round 4,253 to the nearest thousand = 4000 (G) · Round 8,227 to the nearest thousand = 8000 (Y) · Round 375 to the nearest hundred = 400 (E) · Round 3,252 to the nearest thousand = 3000 (H)
- Clue 2 (Addition): "A RIGHT HANDED NOTCH WAS LEFT ON THE GATE"564 + 298 = 862 (A) · 325 + 663 = 988 (D) · 529 + 312 = 841 (R) · 283 + 253 = 536 (H) · 378 + 451 = 829 (W) · 326 + 396 = 722 (S) · 150 + 190 = 340 (L) · 342 + 301 = 643 (O) · 465 + 223 = 688 (E) · 120 + 156 = 276 (N) · 93 + 151 = 244 (F) · 126 + 201 = 327 (G) · 341 + 232 = 573 (I) · 370 + 170 = 540 (C) · 204 + 112 = 316 (T)
- Clue 3 (Subtraction): "A BRIGHT FLASH SPOOKED THE ROGUE AWAY"478 - 70 = 408 (A) · 354 - 203 = 151 (E) · 776 - 252 = 524 (I) · 1110 - 267 = 843 (Y) · 1022 - 168 = 854 (O) · 978 - 293 = 685 (R) · 1037 - 285 = 752 (W) · 724 - 6 = 718 (D) · 621 - 280 = 341 (F) · 325 - 6 = 319 (G) · 740 - 28 = 712 (H) · 975 - 130 = 845 (L) · 264 - 85 = 179 (T) · 536 - 268 = 268 (B) · 891 - 384 = 507 (P) · 750 - 14 = 736 (S) · 891 - 383 = 508 (K) · 583 - 257 = 326 (U)
- Clue 4 (Multiplication facts (1-12)): "A BROWN FEATHER WAS FOUND BY THE LOGS"3 × 1 = 3 (A) · 9 × 10 = 90 (S) · 6 × 6 = 36 (F) · 5 × 7 = 35 (U) · 7 × 4 = 28 (D) · 6 × 9 = 54 (G) · 7 × 3 = 21 (E) · 11 × 11 = 121 (R) · 6 × 3 = 18 (T) · 11 × 10 = 110 (W) · 7 × 7 = 49 (B) · 4 × 11 = 44 (Y) · 4 × 1 = 4 (L) · 8 × 10 = 80 (H) · 7 × 8 = 56 (O) · 6 × 10 = 60 (N)
- Clue 5 (Division facts (1-12)): surviving statement (box 5) → Elizabeth Viccars120 ÷ 10 = 12 · 120 ÷ 12 = 10 · 12 ÷ 4 = 3 · 24 ÷ 4 = 6 · 40 ÷ 10 = 4 · 54 ÷ 6 = 9 · 9 ÷ 9 = 1 · 8 ÷ 4 = 2 · 16 ÷ 2 = 8 · 77 ÷ 7 = 11 · 14 ÷ 2 = 7
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Secret of Roanoke Island — set in Fort Roanoke, 1590
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects