🦄 UnicornsGrade 2Reading: grades 1-2AdditionSubtractionPlace valueSkip countingMissing addends
The Case of the Missing Rainbow Crown
Oh no! The magical Rainbow Crown is missing from the Great Crystal Tree. Star the Pixie needs your help to find which unicorn took 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 | Magic Power | Lucky Accessory | Writing Hoof | Mane Style | Dislike |
|---|---|---|---|---|---|
| Twinkle | Rainbow bridge | Star cape | Left-hoofed | Pink mane | Sour apples |
| Pearl | Rainbow bridge | Glow collar | Left-hoofed | Blue mane | Sticky mud |
| Melody | Sparkle blast | Ribbon bow | Right-hoofed | Pink mane | Sour apples |
| Breeze | Cloud walking | Golden shoe | Left-hoofed | Pink mane | Sour apples |
| Daisy | Flower bloom | Ribbon bow | Left-hoofed | Blue mane | Sour apples |
| Whisper | Sparkle blast | Star cape | Right-hoofed | Pink mane | Sour apples |
| Clover | Cloud walking | Glow collar | Left-hoofed | Blue mane | Cold rain |
| Dawn | Sparkle blast | Glow collar | Left-hoofed | Pink mane | Sticky mud |
| Crystal | Cloud walking | Magic tiara | Left-hoofed | Pink mane | Sticky mud |
| Luna | Cloud walking | Ribbon bow | Left-hoofed | Pink mane | Sour apples |
| Jewel | Sparkle blast | Glow collar | Left-hoofed | Pink mane | Sour apples |
| Angel | Flower bloom | Star cape | Right-hoofed | Gold mane | Sour apples |
| Rosie | Glitter storm | Star cape | Right-hoofed | Pink mane | Cold rain |
| Sky | Cloud walking | Ribbon bow | Left-hoofed | Blue mane | Sour apples |
| Sunny | Sparkle blast | Glow collar | Right-hoofed | Blue mane | Cold rain |
| Bella | Rainbow bridge | Golden shoe | Left-hoofed | Blue mane | Sour apples |
| Misty | Cloud walking | Golden shoe | Right-hoofed | Pink mane | Sticky mud |
| Sparkles | Cloud walking | Magic tiara | Left-hoofed | Blue mane | Sour apples |
| Buttercup | Glitter storm | Magic tiara | Right-hoofed | Pink mane | Sour apples |
| Blossom | Cloud walking | Glow collar | Right-hoofed | Blue mane | Sticky mud |
| Nova | Rainbow bridge | Glow collar | Left-hoofed | Pink mane | Sour apples |
Clue 1
Addition
We count the glitter apples on the ground. Let us add the red ones and the green ones together.
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
43
58
93
91
45
96
96
89
45
67
56
72
93
26
67
72
T
43
48
93
89
75
89
66
72
96
56
93
67
26
58
72
93
31 + 12 =T
51 + 42 =E
38 + 34 =O
29 + 37 =G
20 + 38 =H
17 + 39 =D
17 + 31 =W
65 + 31 =L
41 + 26 =N
27 + 62 =A
14 + 12 =S
33 + 58 =V
50 + 25 =R
29 + 16 =I
0/14 letters found
Clue 2
Subtraction
Some sweet rainbow carrots are gone from the garden. We take away the eaten ones to find the rest.
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
30
60
33
45
39
45
84
33
20
T
30
29
28
61
T
30
33
45
29
61
T
30
60
T
30
60
33
61
28
51
33
79
T
30
60
19
19
79
52 - 22 =T
115 - 31 =P
37 - 9 =R
98 - 37 =I
67 - 34 =E
90 - 39 =L
41 - 21 =C
53 - 14 =U
67 - 38 =W
83 - 23 =H
49 - 4 =S
110 - 31 =F
39 - 20 =O
0/13 letters found
Clue 3
Place value
The magic chest has a lock. We must count the tens and ones blocks to open it.
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
80
86
89
87
59
87
51
89
54
T
80
86
27
T
80
89
87
87
62
59
49
16
49
89
89
97
27
51
51
68
89
87
What number has 8 tens and 0 ones?T
What number has 5 tens and 9 ones?U
What number has 8 tens and 9 ones?E
What number has 2 tens and 7 ones?A
What number has 6 tens and 8 ones?L
What number has 8 tens and 6 ones?H
What number has 9 tens and 7 ones?N
What number has 5 tens and 1 one?P
What number has 5 tens and 4 ones?C
What number has 1 ten and 6 ones?G
What number has 6 tens and 2 ones?O
What number has 8 tens and 7 ones?S
What number has 4 tens and 9 ones?R
0/13 letters found
Clue 4
Skip counting
The crafty unicorn left hoofprints on the path. We must skip count by fives to follow them.
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
24
45
14
100
9
42
140
25
20
65
50
42
140
25
100
14
50
35
65
8
55
10
20
80
8
42
26
33
50
42
45
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30W
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55E
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30K
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48N
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75R
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65G
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18F
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160D
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120O
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100P
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45B
0/18 letters found
Clue 5
Missing addends — the last clue
We need ten shiny ribbons to make a ladder. We have six. Let us find how many more 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
7 + ___ = 18
3 + ___ = 7
9 + ___ = 17
3 + ___ = 6
4 + ___ = 14
4 + ___ = 11
10 + ___ = 19
6 + ___ = 8
9 + ___ = 14
8 + ___ = 20
8 + ___ = 14
Step 2 — cross out the sentence with each answer
1.The villain steps softly across a cloud, then ties a pretty ribbon bow.
2.The villain shoots a bright sparkle blast, then polishes a bright golden shoe.
3.The villain conjures a wild glitter storm, then lights up their glow collar.
4.The villain makes a glowing rainbow bridge, then lights up their glow collar.
5.The villain makes a ring of flowers bloom, then adjusts their pink magic tiara.
6.The villain conjures a wild glitter storm, then adjusts their pink magic tiara.
7.The villain makes a ring of flowers bloom, then ties a pretty ribbon bow.
8.The villain makes a glowing rainbow bridge, then puts on a shiny star cape.
9.The villain steps softly across a cloud, then lights up their glow collar.
10.The villain makes a glowing rainbow bridge, then polishes a bright golden shoe.
11.The villain shoots a bright sparkle blast, then lights up their glow collar.
12.The villain makes a glowing rainbow bridge, then adjusts their pink magic tiara.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Rainbow Crown
Culprit: Luna (Cloud walking · Ribbon bow · Left-hoofed · Pink mane · Sour apples)
- Clue 1 (Addition): "THE VILLAIN DOES NOT WEAR A GOLDEN SHOE"31 + 12 = 43 (T) · 51 + 42 = 93 (E) · 38 + 34 = 72 (O) · 29 + 37 = 66 (G) · 20 + 38 = 58 (H) · 17 + 39 = 56 (D) · 17 + 31 = 48 (W) · 65 + 31 = 96 (L) · 41 + 26 = 67 (N) · 27 + 62 = 89 (A) · 14 + 12 = 26 (S) · 33 + 58 = 91 (V) · 50 + 25 = 75 (R) · 29 + 16 = 45 (I)
- Clue 2 (Subtraction): "THE SUSPECT WRITES WITH THEIR LEFT HOOF"52 - 22 = 30 (T) · 115 - 31 = 84 (P) · 37 - 9 = 28 (R) · 98 - 37 = 61 (I) · 67 - 34 = 33 (E) · 90 - 39 = 51 (L) · 41 - 21 = 20 (C) · 53 - 14 = 39 (U) · 67 - 38 = 29 (W) · 83 - 23 = 60 (H) · 49 - 4 = 45 (S) · 110 - 31 = 79 (F) · 39 - 20 = 19 (O)
- Clue 3 (Place value): "THE SUSPECT HATES SOUR GREEN APPLES"What number has 8 tens and 0 ones? = 80 (T) · What number has 5 tens and 9 ones? = 59 (U) · What number has 8 tens and 9 ones? = 89 (E) · What number has 2 tens and 7 ones? = 27 (A) · What number has 6 tens and 8 ones? = 68 (L) · What number has 8 tens and 6 ones? = 86 (H) · What number has 9 tens and 7 ones? = 97 (N) · What number has 5 tens and 1 one? = 51 (P) · What number has 5 tens and 4 ones? = 54 (C) · What number has 1 ten and 6 ones? = 16 (G) · What number has 6 tens and 2 ones? = 62 (O) · What number has 8 tens and 7 ones? = 87 (S) · What number has 4 tens and 9 ones? = 49 (R)
- Clue 4 (Skip counting): "WE FOUND STRANDS OF A BRIGHT PINK MANE"Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (W) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (E) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (K) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (M) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (N) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14 = 10 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60 = 50 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (G) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (F) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (D) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (O) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (P) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (B)
- Clue 5 (Missing addends): surviving statement (box 1) → Luna7 + ___ = 18 = 11 · 3 + ___ = 7 = 4 · 9 + ___ = 17 = 8 · 3 + ___ = 6 = 3 · 4 + ___ = 14 = 10 · 4 + ___ = 11 = 7 · 10 + ___ = 19 = 9 · 6 + ___ = 8 = 2 · 9 + ___ = 14 = 5 · 8 + ___ = 20 = 12 · 8 + ___ = 14 = 6
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Addition, Subtraction, Place value, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Case of the Missing Rainbow Crown — set in The Sparkle Forest
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects