🦄 UnicornsGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Case of the Missing Star Sparkles
Someone snatched the glowing star sprinkles from Crystal Meadow! Help Detective Sparkle Hoof trace the clues and catch the sneaky unicorn.
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 | Charm Accessory | Hoof Tapper | Mane Color | Weakness |
|---|---|---|---|---|---|
| Sunbeam | Rainbow Blast | Pink Ribbon | Left Hoof Tapper | Blue Mane | Loud Whistles |
| Jewel | Crystal Glow | Jewel Crown | Left Hoof Tapper | Blue Mane | Loud Whistles |
| Prance | Star Shine | Star Badge | Left Hoof Tapper | Purple Mane | Sweet Apples |
| Pippin | Cloud Dash | Golden Bell | Right Hoof Tapper | Purple Mane | Loud Whistles |
| Starlight | Star Shine | Silver Charm | Left Hoof Tapper | Purple Mane | Loud Whistles |
| Petal | Cloud Dash | Jewel Crown | Left Hoof Tapper | Pink Mane | Sweet Apples |
| Flutter | Crystal Glow | Pink Ribbon | Left Hoof Tapper | Purple Mane | Loud Whistles |
| Cloudy | Cloud Dash | Star Badge | Right Hoof Tapper | Pink Mane | Shiny Mirrors |
| Breeze | Rainbow Blast | Pink Ribbon | Right Hoof Tapper | Pink Mane | Sweet Apples |
| Sunny | Flower Growth | Golden Bell | Right Hoof Tapper | Purple Mane | Loud Whistles |
| Rainbow | Rainbow Blast | Golden Bell | Left Hoof Tapper | Purple Mane | Loud Whistles |
| Sparky | Flower Growth | Golden Bell | Right Hoof Tapper | Pink Mane | Shiny Mirrors |
| Sky | Flower Growth | Silver Charm | Left Hoof Tapper | Pink Mane | Sweet Apples |
| Meadow | Cloud Dash | Pink Ribbon | Left Hoof Tapper | Pink Mane | Loud Whistles |
| Dazzle | Cloud Dash | Jewel Crown | Left Hoof Tapper | Blue Mane | Shiny Mirrors |
| Shimmer | Flower Growth | Jewel Crown | Left Hoof Tapper | Purple Mane | Shiny Mirrors |
| Twinkle | Cloud Dash | Star Badge | Left Hoof Tapper | Pink Mane | Sweet Apples |
| Velvet | Rainbow Blast | Jewel Crown | Left Hoof Tapper | Pink Mane | Shiny Mirrors |
| Nova | Cloud Dash | Jewel Crown | Left Hoof Tapper | Purple Mane | Loud Whistles |
| Glimmer | Cloud Dash | Silver Charm | Left Hoof Tapper | Purple Mane | Loud Whistles |
| Buttercup | Star Shine | Star Badge | Left Hoof Tapper | Pink Mane | Loud Whistles |
Clue 1
Addition
Detective Sparkle Hoof finds two piles of glittering gems. Add them together to see how many gems were saved.
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
9
8
5
13
12
20
20
11
12
10
18
7
5
6
10
7
T
9
17
5
11
4
11
16
12
10
14
4
12
3
3
7
10
4 + 5 =T
10 + 7 =W
2 + 1 =B
6 + 2 =H
5 + 11 =P
3 + 10 =V
7 + 5 =I
4 + 1 =E
5 + 6 =A
11 + 7 =D
3 + 4 =O
4 + 6 =N
8 + 12 =L
1 + 3 =R
6 + 8 =K
5 + 1 =S
0/16 letters found
Clue 2
Subtraction
The thief dropped several glowing crystals along the path. Subtract to find out how many crystals remain.
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
6
3
2
19
8
T
6
17
2
10
10
10
18
19
18
16
2
4
T
6
3
11
11
4
T
6
18
14
14
2
9
9 - 3 =T
11 - 1 =S
20 - 3 =N
11 - 9 =E
6 - 2 =F
18 - 7 =O
17 - 1 =L
20 - 1 =W
17 - 9 =I
20 - 2 =A
13 - 4 =R
4 - 1 =H
20 - 6 =P
0/13 letters found
Clue 3
Skip counting
A trail of tiny hoofprints counts by twos across the soft grass. Skip count to follow the path!
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
16
25
90
80
20
24
60
70
35
22
25
8
42
A
16
20
8
22
60
8
39
70
25
25
A
16
70
55
36
80
55
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20A
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30D
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80I
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45V
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42R
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48M
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35L
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26T
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70H
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28W
0/15 letters found
Clue 4
Place value
A magic clue chest is locked with tens and ones blocks. Match the place values to open the lock.
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
58
35
99
49
35
11
77
56
A
58
24
77
39
63
49
A
58
24
59
36
A
58
39
62
93
99
24
59
What number has 5 tens and 8 ones?A
What number has 7 tens and 7 ones?E
What number has 9 tens and 3 ones?O
What number has 2 tens and 4 ones?N
What number has 3 tens and 9 ones?S
What number has 4 tens and 9 ones?R
What number has 9 tens and 9 ones?U
What number has 6 tens and 2 ones?F
What number has 3 tens and 5 ones?P
What number has 3 tens and 6 ones?W
What number has 5 tens and 9 ones?D
What number has 6 tens and 3 ones?T
What number has 1 ten and 1 one?L
What number has 5 tens and 6 ones?M
0/14 letters found
Clue 5
Missing addends — the last clue
Some star sprinkles are missing from the magic jar. Find the missing number to fill the jar back up!
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
6 + ___ = 17
2 + ___ = 12
9 + ___ = 18
2 + ___ = 6
9 + ___ = 11
1 + ___ = 8
3 + ___ = 15
5 + ___ = 8
9 + ___ = 17
5 + ___ = 11
1 + ___ = 6
Step 2 — cross out the sentence with each answer
1.The villain blasted rainbows everywhere, then dropped a golden bell.
2.The villain grew giant magic flowers, then lost a silver charm.
3.The villain dashed across cloud paths, then untied a pink ribbon.
4.The villain lit up crystal rocks, then pinned a star badge.
5.The villain lit up crystal rocks, then lost a silver charm.
6.The villain grew giant magic flowers, then pinned a star badge.
7.The villain lit up crystal rocks, then dropped a golden bell.
8.The villain lit up crystal rocks, then untied a pink ribbon.
9.The villain shined star energy around, then lost a silver charm.
10.The villain dashed across cloud paths, then polished a jewel crown.
11.The villain dashed across cloud paths, then lost a silver charm.
12.The villain blasted rainbows everywhere, then lost a silver charm.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Star Sparkles
Culprit: Rainbow (Rainbow Blast · Golden Bell · Left Hoof Tapper · Purple Mane · Loud Whistles)
- Clue 1 (Addition): "THE VILLAIN DOES NOT WEAR A PINK RIBBON"4 + 5 = 9 (T) · 10 + 7 = 17 (W) · 2 + 1 = 3 (B) · 6 + 2 = 8 (H) · 5 + 11 = 16 (P) · 3 + 10 = 13 (V) · 7 + 5 = 12 (I) · 4 + 1 = 5 (E) · 5 + 6 = 11 (A) · 11 + 7 = 18 (D) · 3 + 4 = 7 (O) · 4 + 6 = 10 (N) · 8 + 12 = 20 (L) · 1 + 3 = 4 (R) · 6 + 8 = 14 (K) · 5 + 1 = 6 (S)
- Clue 2 (Subtraction): "THE WITNESS SAW A LEFT HOOF TAPPER"9 - 3 = 6 (T) · 11 - 1 = 10 (S) · 20 - 3 = 17 (N) · 11 - 9 = 2 (E) · 6 - 2 = 4 (F) · 18 - 7 = 11 (O) · 17 - 1 = 16 (L) · 20 - 1 = 19 (W) · 17 - 9 = 8 (I) · 20 - 2 = 18 (A) · 13 - 4 = 9 (R) · 4 - 1 = 3 (H) · 20 - 6 = 14 (P)
- Clue 3 (Skip counting): "A LOUD WHISTLE MADE THE VILLAIN RUN"Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (D) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (I) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (V) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (R) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (M) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, ___, 40, 45 = 35 (S) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (L) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (T) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (H) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28 = 24 (W)
- Clue 4 (Place value): "A PURPLE MANE STRAND WAS FOUND"What number has 5 tens and 8 ones? = 58 (A) · What number has 7 tens and 7 ones? = 77 (E) · What number has 9 tens and 3 ones? = 93 (O) · What number has 2 tens and 4 ones? = 24 (N) · What number has 3 tens and 9 ones? = 39 (S) · What number has 4 tens and 9 ones? = 49 (R) · What number has 9 tens and 9 ones? = 99 (U) · What number has 6 tens and 2 ones? = 62 (F) · What number has 3 tens and 5 ones? = 35 (P) · What number has 3 tens and 6 ones? = 36 (W) · What number has 5 tens and 9 ones? = 59 (D) · What number has 6 tens and 3 ones? = 63 (T) · What number has 1 ten and 1 one? = 11 (L) · What number has 5 tens and 6 ones? = 56 (M)
- Clue 5 (Missing addends): surviving statement (box 1) → Rainbow6 + ___ = 17 = 11 · 2 + ___ = 12 = 10 · 9 + ___ = 18 = 9 · 2 + ___ = 6 = 4 · 9 + ___ = 11 = 2 · 1 + ___ = 8 = 7 · 3 + ___ = 15 = 12 · 5 + ___ = 8 = 3 · 9 + ___ = 17 = 8 · 5 + ___ = 11 = 6 · 1 + ___ = 6 = 5
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 Case of the Missing Star Sparkles — set in Crystal Meadow
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects