🌊 Suriname, jaguar, posion darGrade 2Reading: grades 1-2SubtractionWord problemsPlace valueAdditionMissing addends
The Great Suriname River Mystery
Someone took the silver whistle from the park ranger hut! Search the rainforest and find out who did it.
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 | Trick | Gear | Dominant Hand | Headwear | Weakness |
|---|---|---|---|---|---|
| Hugo Hike | Jaguar Prowl | River Map | Left Handed | Leaf Helmet | Splash Water |
| Iguana Ian | Dart Cannon | Tree Net | Left Handed | Feather Cap | Bright Flash |
| Ranger Roy | Iguana Camo | Berry Pouch | Left Handed | Feather Cap | Bright Flash |
| Tia Tree | Iguana Camo | River Map | Right Handed | Feather Cap | Splash Water |
| Cleo Club | Dolphin Leap | Jungle Whistle | Right Handed | Leaf Helmet | Bright Flash |
| Ibis Iris | Ibis Glider | Berry Pouch | Right Handed | Leaf Helmet | Loud Bell |
| Froggy Fred | Jaguar Prowl | Berry Pouch | Left Handed | Feather Cap | Loud Bell |
| Benny Berry | Dart Cannon | River Map | Left Handed | Feather Cap | Splash Water |
| Ruby Red | Iguana Camo | Golden Compass | Left Handed | Feather Cap | Splash Water |
| Tara Trail | Jaguar Prowl | Jungle Whistle | Left Handed | Feather Cap | Splash Water |
| Dolphin Dave | Dart Cannon | Jungle Whistle | Left Handed | Feather Cap | Splash Water |
| Maya Moon | Dart Cannon | Jungle Whistle | Right Handed | Feather Cap | Splash Water |
| Gabe Green | Dart Cannon | Golden Compass | Right Handed | Feather Cap | Loud Bell |
| Finn Fish | Dolphin Leap | Golden Compass | Right Handed | Straw Hat | Loud Bell |
| Nico Net | Iguana Camo | Berry Pouch | Left Handed | Leaf Helmet | Splash Water |
| Leo Leaf | Dart Cannon | Berry Pouch | Right Handed | Leaf Helmet | Loud Bell |
| Jaguar Jack | Ibis Glider | Golden Compass | Left Handed | Leaf Helmet | Splash Water |
| Kira Kayak | Dolphin Leap | Berry Pouch | Left Handed | Feather Cap | Splash Water |
| Suri Sam | Dart Cannon | Tree Net | Left Handed | Straw Hat | Splash Water |
| Milo Mud | Dart Cannon | Tree Net | Left Handed | Feather Cap | Loud Bell |
| Otto Ocean | Dolphin Leap | Tree Net | Left Handed | Leaf Helmet | Splash Water |
Clue 1
Subtraction
We took away some fallen fruit to count what was left near the river.
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
85
69
50
67
73
28
28
75
73
53
34
56
50
31
53
56
T
85
60
75
84
84
74
75
19
56
28
34
50
53
60
56
36
39
75
31
31
112 - 27 =T
71 - 2 =H
101 - 17 =R
65 - 31 =D
84 - 10 =Y
48 - 17 =S
91 - 16 =A
107 - 34 =I
44 - 8 =M
75 - 8 =V
28 - 9 =G
73 - 13 =C
63 - 10 =N
61 - 33 =L
51 - 1 =E
74 - 35 =P
91 - 35 =O
0/17 letters found
Clue 2
Word problems
The park ranger solved story clues about animals seen on the trail.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Awitnesssawthevillainwas .
L
27
26
24
23
29
40
20
D
26
D
Scout lined up 9 rows of 3 juicy mangoes. How many juicy mangoes in all?L
There were 36 river stones. 10 were used up. How many river stones are left?E
Scout lined up 10 rows of 2 juicy mangoes. How many juicy mangoes in all?N
Scout found 5 tree frogs yesterday and 18 more today. How many tree frogs in all?T
Scout lined up 12 rows of 2 tree frogs. How many tree frogs in all?F
Scout lined up 4 rows of 10 tree frogs. How many tree frogs in all?A
There were 31 bright feathers. 2 were used up. How many bright feathers are left?H
0/7 letters found
Clue 3
Place value
We checked the tens and ones on the jungle outpost gate code.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
30
54
57
97
S
30
47
39
97
59
73
93
39
97
S
30
24
S
30
73
43
59
16
S
30
59
16
54
59
47
73
S
30
31
73
97
50
What number has 3 tens and 0 ones?S
What number has 3 tens and 9 ones?W
What number has 4 tens and 7 ones?H
What number has 1 ten and 6 ones?O
What number has 5 tens and 9 ones?T
What number has 5 tens and 4 ones?P
What number has 4 tens and 3 ones?D
What number has 3 tens and 1 one?N
What number has 5 tens and 7 ones?L
What number has 9 tens and 3 ones?R
What number has 9 tens and 7 ones?A
What number has 5 tens and 0 ones?K
What number has 2 tens and 4 ones?U
What number has 7 tens and 3 ones?E
0/14 letters found
Clue 4
Addition
We put together all the animal tracks found in the mud.
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
51
67
47
40
55
67
78
60
36
67
78
67
62
78
59
81
81
67
62
47
40
40
55
67
60
88
67
37
67
33 + 18 =F
24 + 35 =O
57 + 31 =C
10 + 26 =W
41 + 21 =D
15 + 32 =A
32 + 28 =S
22 + 15 =N
40 + 38 =R
26 + 14 =T
35 + 32 =E
31 + 50 =P
35 + 20 =H
0/13 letters found
Clue 5
Missing addends — the last clue
We found how many missing seeds were needed to fill the pouch.
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
10 + ___ = 19
2 + ___ = 10
4 + ___ = 6
10 + ___ = 11
2 + ___ = 8
10 + ___ = 21
3 + ___ = 13
2 + ___ = 14
5 + ___ = 8
1 + ___ = 5
9 + ___ = 14
Step 2 — cross out the sentence with each answer
1.The villain used an ibis glider, then dropped a river map.
2.The villain shot a dart cannon, then dropped a river map.
3.The villain made a dolphin leap, then lost a golden compass.
4.The villain turned on iguana camo, then blew a jungle whistle.
5.The villain used jaguar prowl, then tangled a tree net.
6.The villain used an ibis glider, then lost a golden compass.
7.The villain used jaguar prowl, then blew a jungle whistle.
8.The villain made a dolphin leap, then spilled a berry pouch.
9.The villain shot a dart cannon, then blew a jungle whistle.
10.The villain used jaguar prowl, then spilled a berry pouch.
11.The villain used an ibis glider, then tangled a tree net.
12.The villain made a dolphin leap, then blew a jungle whistle.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Suriname River Mystery
Culprit: Tara Trail (Jaguar Prowl · Jungle Whistle · Left Handed · Feather Cap · Splash Water)
- Clue 1 (Subtraction): "THE VILLAIN DOES NOT CARRY A GOLDEN COMPASS"112 - 27 = 85 (T) · 71 - 2 = 69 (H) · 101 - 17 = 84 (R) · 65 - 31 = 34 (D) · 84 - 10 = 74 (Y) · 48 - 17 = 31 (S) · 91 - 16 = 75 (A) · 107 - 34 = 73 (I) · 44 - 8 = 36 (M) · 75 - 8 = 67 (V) · 28 - 9 = 19 (G) · 73 - 13 = 60 (C) · 63 - 10 = 53 (N) · 61 - 33 = 28 (L) · 51 - 1 = 50 (E) · 74 - 35 = 39 (P) · 91 - 35 = 56 (O)
- Clue 2 (Word problems): "LEFT HANDED"Scout lined up 9 rows of 3 juicy mangoes. How many juicy mangoes in all? = 27 (L) · There were 36 river stones. 10 were used up. How many river stones are left? = 26 (E) · Scout lined up 10 rows of 2 juicy mangoes. How many juicy mangoes in all? = 20 (N) · Scout found 5 tree frogs yesterday and 18 more today. How many tree frogs in all? = 23 (T) · Scout lined up 12 rows of 2 tree frogs. How many tree frogs in all? = 24 (F) · Scout lined up 4 rows of 10 tree frogs. How many tree frogs in all? = 40 (A) · There were 31 bright feathers. 2 were used up. How many bright feathers are left? = 29 (H)
- Clue 3 (Place value): "SPLASH WATER WAS USED TO STOP THE SNEAK"What number has 3 tens and 0 ones? = 30 (S) · What number has 3 tens and 9 ones? = 39 (W) · What number has 4 tens and 7 ones? = 47 (H) · What number has 1 ten and 6 ones? = 16 (O) · What number has 5 tens and 9 ones? = 59 (T) · What number has 5 tens and 4 ones? = 54 (P) · What number has 4 tens and 3 ones? = 43 (D) · What number has 3 tens and 1 one? = 31 (N) · What number has 5 tens and 7 ones? = 57 (L) · What number has 9 tens and 3 ones? = 93 (R) · What number has 9 tens and 7 ones? = 97 (A) · What number has 5 tens and 0 ones? = 50 (K) · What number has 2 tens and 4 ones? = 24 (U) · What number has 7 tens and 3 ones? = 73 (E)
- Clue 4 (Addition): "FEATHERS WERE DROPPED AT THE SCENE"33 + 18 = 51 (F) · 24 + 35 = 59 (O) · 57 + 31 = 88 (C) · 10 + 26 = 36 (W) · 41 + 21 = 62 (D) · 15 + 32 = 47 (A) · 32 + 28 = 60 (S) · 22 + 15 = 37 (N) · 40 + 38 = 78 (R) · 26 + 14 = 40 (T) · 35 + 32 = 67 (E) · 31 + 50 = 81 (P) · 35 + 20 = 55 (H)
- Clue 5 (Missing addends): surviving statement (box 7) → Tara Trail10 + ___ = 19 = 9 · 2 + ___ = 10 = 8 · 4 + ___ = 6 = 2 · 10 + ___ = 11 = 1 · 2 + ___ = 8 = 6 · 10 + ___ = 21 = 11 · 3 + ___ = 13 = 10 · 2 + ___ = 14 = 12 · 5 + ___ = 8 = 3 · 1 + ___ = 5 = 4 · 9 + ___ = 14 = 5
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Subtraction, Word problems, Place value, Addition, Missing addends
- Reading level
- grades 1-2
- Theme
- The Great Suriname River Mystery — set in Coppename River Jungle
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects