🔎 FishingGrade 2Reading: grades 3-4Place valueSubtractionAdditionSkip countingMissing addends
The Mystery of Golden Lake
Someone snuck into the hatchery at night and scooped up the prize winning rainbow trout! Leave no boat unturned as you solve the clues and catch the rogue angler.
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 | Fishing Style | Gear Choice | Casting Hand | Hair Style | Foil Weakness |
|---|---|---|---|---|---|
| Jeremy Wade | Ice Hole Jigging | Electric Motor | Right Handed Cast | Dark Braided Hair | Slippery Boots |
| Reef Rita | Deep Sea Chugging | Sonar Radar | Left Handed Cast | Salty Gray Beard | Snagged Hooks |
| Sailor Bob | Ice Hole Jigging | Graphite Rod | Left Handed Cast | Dark Braided Hair | Snagged Hooks |
| River Reed | Deep Sea Chugging | Braided Line | Left Handed Cast | Dark Braided Hair | Slippery Boots |
| Captain Ahab | Ice Hole Jigging | Electric Motor | Left Handed Cast | Dark Braided Hair | Snagged Hooks |
| Gill Guy | Bottom Trolling | Heavy Net | Left Handed Cast | Dark Braided Hair | Tangled Lines |
| Hank Parker | Deep Sea Chugging | Braided Line | Right Handed Cast | Salty Gray Beard | Tangled Lines |
| Jimmy Houston | Bottom Trolling | Braided Line | Left Handed Cast | Dark Braided Hair | Slippery Boots |
| Skipper Jack | Fly Casting | Braided Line | Left Handed Cast | Dark Braided Hair | Slippery Boots |
| Marina Mae | Ice Hole Jigging | Heavy Net | Left Handed Cast | Sun Bleached Blonde | Slippery Boots |
| Fisher Finn | Ice Hole Jigging | Heavy Net | Right Handed Cast | Salty Gray Beard | Slippery Boots |
| Lake Louise | Bottom Trolling | Heavy Net | Left Handed Cast | Sun Bleached Blonde | Snagged Hooks |
| Rick Clunn | Bottom Trolling | Sonar Radar | Right Handed Cast | Sun Bleached Blonde | Slippery Boots |
| Stream Sam | Bottom Trolling | Graphite Rod | Left Handed Cast | Dark Braided Hair | Slippery Boots |
| Pier Pete | Bottom Trolling | Electric Motor | Right Handed Cast | Dark Braided Hair | Snagged Hooks |
| Kevin VanDam | Ice Hole Jigging | Sonar Radar | Left Handed Cast | Dark Braided Hair | Snagged Hooks |
| Bill Dance | Bottom Trolling | Sonar Radar | Left Handed Cast | Dark Braided Hair | Snagged Hooks |
| Bay Billy | Deep Sea Chugging | Sonar Radar | Right Handed Cast | Sun Bleached Blonde | Slippery Boots |
| Harbor Hank | Ice Hole Jigging | Heavy Net | Left Handed Cast | Dark Braided Hair | Tangled Lines |
| Angler Amy | Deep Sea Chugging | Heavy Net | Left Handed Cast | Sun Bleached Blonde | Slippery Boots |
| Roland Martin | Deep Sea Chugging | Heavy Net | Left Handed Cast | Dark Braided Hair | Slippery Boots |
Clue 1
Place value
The dock master checked the three digit tag number printed on the boat motor.
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
67
94
99
29
77
29
69
99
96
T
67
33
52
99
29
31
52
T
67
77
29
99
11
27
73
11
69
94
87
T
67
99
73
52
33
What number has 6 tens and 7 ones?T
What number has 9 tens and 6 ones?C
What number has 2 tens and 9 ones?S
What number has 9 tens and 9 ones?E
What number has 5 tens and 2 ones?O
What number has 6 tens and 9 ones?P
What number has 7 tens and 7 ones?U
What number has 3 tens and 1 one?N
What number has 9 tens and 4 ones?H
What number has 3 tens and 3 ones?D
What number has 8 tens and 7 ones?I
What number has 1 ten and 1 one?A
What number has 2 tens and 7 ones?G
What number has 7 tens and 3 ones?R
0/14 letters found
Clue 2
Subtraction
Detective Sam measured how many minnows were missing from the bait bucket.
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
44
80
35
63
54
T
44
30
35
56
56
56
76
63
76
41
35
59
T
44
80
76
30
26
35
26
22
76
56
T
44
59 - 15 =T
115 - 35 =H
43 - 2 =L
34 - 8 =D
86 - 30 =S
100 - 24 =A
86 - 32 =I
43 - 8 =E
51 - 29 =C
74 - 15 =F
74 - 11 =W
54 - 24 =N
0/12 letters found
Clue 3
Addition
The team counted up all the landed bass to narrow down the clues.
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
44
40
38
93
85
25
77
54
42
67
23
42
64
67
38
92
46
69
67
77
25
74
74
38
49
69
46
85
85
T
44
67
14 + 30 =T
31 + 15 =B
55 + 37 =D
25 + 42 =S
11 + 14 =I
27 + 47 =P
25 + 17 =A
45 + 24 =Y
12 + 28 =H
15 + 23 =E
30 + 19 =R
52 + 25 =L
9 + 14 =C
34 + 30 =U
21 + 33 =W
42 + 51 =F
35 + 50 =O
0/17 letters found
Clue 4
Skip counting
The harbor ranger counted buoy markers along the shore in equal jumps.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
H
6
80
70
25
39
24
10
H
6
42
39
80
25
15
80
27
35
80
25
16
80
24
35
26
25
80
70
35
42
35
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45O
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20K
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100A
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45D
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14T
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30B
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35R
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33S
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48E
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25W
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80I
0/13 letters found
Clue 5
Missing addends — the last clue
Sam calculated how many lures remained to uncover the hidden message.
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
3 + ___ = 8
6 + ___ = 7
10 + ___ = 20
9 + ___ = 16
8 + ___ = 11
6 + ___ = 18
2 + ___ = 6
1 + ___ = 3
10 + ___ = 16
2 + ___ = 11
7 + ___ = 18
Step 2 — cross out the sentence with each answer
1.The villain trolls deep along the bottom, then snaps a braided line.
2.The villain trolls deep along the bottom, then scans with sonar radar.
3.The villain jigs through the lake ice, then snaps a braided line.
4.The villain trolls deep along the bottom, then swings a graphite rod.
5.The villain chugs a big lure offshore, then snaps a braided line.
6.The villain casts a heavy fly line, then swings a graphite rod.
7.The villain jigs through the lake ice, then scans with sonar radar.
8.The villain casts a heavy fly line, then snaps a braided line.
9.The villain trolls deep along the bottom, then steers an electric motor.
10.The villain chugs a big lure offshore, then hauls a heavy net.
11.The villain jigs through the lake ice, then steers an electric motor.
12.The villain pops a noisy surface plug, then steers an electric motor.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of Golden Lake
Culprit: Skipper Jack (Fly Casting · Braided Line · Left Handed Cast · Dark Braided Hair · Slippery Boots)
- Clue 1 (Place value): "THE SUSPECT DOES NOT USE A GRAPHITE ROD"What number has 6 tens and 7 ones? = 67 (T) · What number has 9 tens and 6 ones? = 96 (C) · What number has 2 tens and 9 ones? = 29 (S) · What number has 9 tens and 9 ones? = 99 (E) · What number has 5 tens and 2 ones? = 52 (O) · What number has 6 tens and 9 ones? = 69 (P) · What number has 7 tens and 7 ones? = 77 (U) · What number has 3 tens and 1 one? = 31 (N) · What number has 9 tens and 4 ones? = 94 (H) · What number has 3 tens and 3 ones? = 33 (D) · What number has 8 tens and 7 ones? = 87 (I) · What number has 1 ten and 1 one? = 11 (A) · What number has 2 tens and 7 ones? = 27 (G) · What number has 7 tens and 3 ones? = 73 (R)
- Clue 2 (Subtraction): "THE WITNESS SAW A LEFT HANDED CAST"59 - 15 = 44 (T) · 115 - 35 = 80 (H) · 43 - 2 = 41 (L) · 34 - 8 = 26 (D) · 86 - 30 = 56 (S) · 100 - 24 = 76 (A) · 86 - 32 = 54 (I) · 43 - 8 = 35 (E) · 51 - 29 = 22 (C) · 74 - 15 = 59 (F) · 74 - 11 = 63 (W) · 54 - 24 = 30 (N)
- Clue 3 (Addition): "THE FOIL WAS CAUSED BY SLIPPERY BOOTS"14 + 30 = 44 (T) · 31 + 15 = 46 (B) · 55 + 37 = 92 (D) · 25 + 42 = 67 (S) · 11 + 14 = 25 (I) · 27 + 47 = 74 (P) · 25 + 17 = 42 (A) · 45 + 24 = 69 (Y) · 12 + 28 = 40 (H) · 15 + 23 = 38 (E) · 30 + 19 = 49 (R) · 52 + 25 = 77 (L) · 9 + 14 = 23 (C) · 34 + 30 = 64 (U) · 21 + 33 = 54 (W) · 42 + 51 = 93 (F) · 35 + 50 = 85 (O)
- Clue 4 (Skip counting): "HAIR ON THE OAR WAS DARK AND BRAIDED"Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (O) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (K) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (A) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28 = 24 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (D) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14 = 10 (T) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (B) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (R) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (S) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (E) · Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (W) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (I)
- Clue 5 (Missing addends): surviving statement (box 8) → Skipper Jack3 + ___ = 8 = 5 · 6 + ___ = 7 = 1 · 10 + ___ = 20 = 10 · 9 + ___ = 16 = 7 · 8 + ___ = 11 = 3 · 6 + ___ = 18 = 12 · 2 + ___ = 6 = 4 · 1 + ___ = 3 = 2 · 10 + ___ = 16 = 6 · 2 + ___ = 11 = 9 · 7 + ___ = 18 = 11
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Subtraction, Addition, Skip counting, Missing addends
- Reading level
- grades 3-4
- Theme
- The Mystery of Golden Lake — set in Whispering Pines Fishery
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects