Grade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Golden Banana Chase
The Golden Banana is gone! The Head Ranger needs your help. A Cheeky Monkey took it and hid in the jungle. Use your math skills to find the right monkey!
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 | Jungle Gear | Favorite Item | Paw Prints | Fur Color | Secret Weakness |
|---|---|---|---|---|---|
| Pip | talks on a radio | wears a hat | right paw print | golden fur | tickles |
| Lulu | shines a light | loves bananas | left paw print | golden fur | tickles |
| Joy | uses a map | carries a coconut | left paw print | golden fur | tickles |
| Zoe | uses a map | wears a hat | left paw print | black fur | tickles |
| Finn | uses a map | has a compass | left paw print | brown fur | tickles |
| Gus | uses a map | has a parrot | left paw print | black fur | shiny mirrors |
| Ben | wears big boots | has a compass | right paw print | golden fur | shiny mirrors |
| Rex | shines a light | has a compass | left paw print | golden fur | tickles |
| Mia | uses a map | loves bananas | right paw print | black fur | tickles |
| Ned | shines a light | loves bananas | left paw print | golden fur | shiny mirrors |
| Leo | swings on ropes | carries a coconut | left paw print | brown fur | loud whistles |
| Toby | uses a map | wears a hat | right paw print | golden fur | loud whistles |
| Kai | wears big boots | loves bananas | left paw print | black fur | tickles |
| Amy | swings on ropes | wears a hat | left paw print | golden fur | tickles |
| Sam | shines a light | has a parrot | left paw print | black fur | shiny mirrors |
| Ruby | wears big boots | wears a hat | left paw print | golden fur | tickles |
| Jake | uses a map | loves bananas | right paw print | black fur | loud whistles |
| Otis | shines a light | wears a hat | left paw print | golden fur | loud whistles |
| Dan | swings on ropes | has a compass | right paw print | brown fur | loud whistles |
| Eli | uses a map | carries a coconut | right paw print | black fur | shiny mirrors |
| Roy | wears big boots | carries a coconut | left paw print | black fur | tickles |
Clue 1
Addition
We need to pack our bags for the trip. Count the maps we have to see if we are ready. Add them up!
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
15
9
17
16
13
2
4
17
19
7
13
17
6
2
13
T
15
9
12
20
17
12
5
13
5
13
2
18
T
15
9 + 6 =T
7 + 5 =A
1 + 3 =K
6 + 7 =O
13 + 7 =V
4 + 3 =D
9 + 10 =Y
1 + 1 =N
4 + 1 =C
5 + 4 =H
12 + 5 =E
11 + 7 =U
6 + 10 =M
5 + 1 =S
0/14 letters found
Clue 2
Subtraction
Oh no, some supplies fell into the river! Subtract the lost boots to find out what we have left.
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
4
8
19
17
9
16
1
19
13
2
19
15
12
19
11
15
2
19
7
T
4
10
15
3
10
5
18
16
T
4
13 - 9 =T
17 - 9 =H
11 - 6 =R
20 - 1 =E
16 - 1 =A
10 - 9 =K
10 - 1 =O
10 - 3 =F
16 - 4 =V
19 - 1 =I
17 - 1 =N
13 - 2 =S
11 - 8 =W
17 - 4 =Y
16 - 6 =P
10 - 8 =L
19 - 2 =M
0/17 letters found
Clue 3
Skip counting
Look at the big mud steps on the path. Let us skip count by twos to climb up the steep hill.
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
22
24
140
27
60
130
40
140
65
21
8
15
18
35
15
21
100
60
18
T
22
21
45
40
10
140
8
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26T
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27I
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75Y
Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60K
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55C
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14L
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45R
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22F
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80O
0/16 letters found
Clue 4
Place value
We found some shiny gold coins in a box. Group them into tens and ones to see our score.
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
17
14
64
34
85
62
97
49
31
14
77
14
79
34
64
15
34
84
97
14
62
64
85
26
What number has 1 ten and 7 ones?W
What number has 6 tens and 4 ones?F
What number has 8 tens and 5 ones?U
What number has 9 tens and 7 ones?D
What number has 3 tens and 4 ones?O
What number has 1 ten and 4 ones?E
What number has 1 ten and 5 ones?G
What number has 7 tens and 9 ones?S
What number has 3 tens and 1 one?I
What number has 6 tens and 2 ones?N
What number has 4 tens and 9 ones?P
What number has 8 tens and 4 ones?L
What number has 2 tens and 6 ones?R
What number has 7 tens and 7 ones?C
0/14 letters found
Clue 5
Missing addends — the last clue
We need ten total keys to open the gate. We have some now. How many more keys do we need?
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
9 + ___ = 19
2 + ___ = 14
3 + ___ = 6
9 + ___ = 17
3 + ___ = 10
6 + ___ = 7
8 + ___ = 13
6 + ___ = 17
6 + ___ = 12
10 + ___ = 19
2 + ___ = 6
Step 2 — cross out the sentence with each answer
1.The villain digs a sandy hole, then points to the hidden path.
2.The villain climbs the tall vine, then laughs with a cheeky grin.
3.The villain digs a sandy hole, then laughs with a cheeky grin.
4.The villain digs a sandy hole, then drops a yellow banana peel.
5.The villain crosses the old bridge, then points to the hidden path.
6.The villain crosses the old bridge, then shakes the leafy branches.
7.The villain swings through the trees, then makes a loud happy squeak.
8.The villain digs a sandy hole, then shakes the leafy branches.
9.The villain digs a sandy hole, then makes a loud happy squeak.
10.The villain runs past the river, then points to the hidden path.
11.The villain climbs the tall vine, then drops a yellow banana peel.
12.The villain runs past the river, then drops a yellow banana peel.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Golden Banana Chase
Culprit: Ruby (wears big boots · wears a hat · left paw print · golden fur · tickles)
- Clue 1 (Addition): "THE MONKEY DOES NOT HAVE A COCONUT"9 + 6 = 15 (T) · 7 + 5 = 12 (A) · 1 + 3 = 4 (K) · 6 + 7 = 13 (O) · 13 + 7 = 20 (V) · 4 + 3 = 7 (D) · 9 + 10 = 19 (Y) · 1 + 1 = 2 (N) · 4 + 1 = 5 (C) · 5 + 4 = 9 (H) · 12 + 5 = 17 (E) · 11 + 7 = 18 (U) · 6 + 10 = 16 (M) · 5 + 1 = 6 (S)
- Clue 2 (Subtraction): "THE MONKEY LEAVES A LEFT PAW PRINT"13 - 9 = 4 (T) · 17 - 9 = 8 (H) · 11 - 6 = 5 (R) · 20 - 1 = 19 (E) · 16 - 1 = 15 (A) · 10 - 9 = 1 (K) · 10 - 1 = 9 (O) · 10 - 3 = 7 (F) · 16 - 4 = 12 (V) · 19 - 1 = 18 (I) · 17 - 1 = 16 (N) · 13 - 2 = 11 (S) · 11 - 8 = 3 (W) · 17 - 4 = 13 (Y) · 16 - 6 = 10 (P) · 10 - 8 = 2 (L) · 19 - 2 = 17 (M)
- Clue 3 (Skip counting): "THE MONKEY IS AFRAID OF TICKLES"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (T) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (M) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (I) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (Y) · Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60 = 40 (K) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (C) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14 = 10 (L) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, ___, 18, 21 = 15 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22 = 18 (F) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (O)
- Clue 4 (Place value): "WE FOUND PIECES OF GOLDEN FUR"What number has 1 ten and 7 ones? = 17 (W) · What number has 6 tens and 4 ones? = 64 (F) · What number has 8 tens and 5 ones? = 85 (U) · What number has 9 tens and 7 ones? = 97 (D) · What number has 3 tens and 4 ones? = 34 (O) · What number has 1 ten and 4 ones? = 14 (E) · What number has 1 ten and 5 ones? = 15 (G) · What number has 7 tens and 9 ones? = 79 (S) · What number has 3 tens and 1 one? = 31 (I) · What number has 6 tens and 2 ones? = 62 (N) · What number has 4 tens and 9 ones? = 49 (P) · What number has 8 tens and 4 ones? = 84 (L) · What number has 2 tens and 6 ones? = 26 (R) · What number has 7 tens and 7 ones? = 77 (C)
- Clue 5 (Missing addends): surviving statement (box 2) → Ruby9 + ___ = 19 = 10 · 2 + ___ = 14 = 12 · 3 + ___ = 6 = 3 · 9 + ___ = 17 = 8 · 3 + ___ = 10 = 7 · 6 + ___ = 7 = 1 · 8 + ___ = 13 = 5 · 6 + ___ = 17 = 11 · 6 + ___ = 12 = 6 · 10 + ___ = 19 = 9 · 2 + ___ = 6 = 4
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Addition, Subtraction, Skip counting, Place value, Missing addends
- Reading level
- grades 1-2
- Theme
- The Golden Banana Chase — set in the Sunny Island Jungle
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects