🔎 The little moon prinsesGrade 1Reading: grades 1-2Fractions of a numberMultiplicationRoundingSkip countingDivision
The Mystery of the Moon Pearls
The royal crown of the Moon Princess has lost its magical glow. A sneaky star snatcher has taken the Moon Pearls! Detective, we must find the thief and save the night sky!
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 | Lunar Power | Space Gear | Staff Hand | Hair Color | Lullaby Weakness |
|---|---|---|---|---|---|
| Gigi Glow | comet jumping | bubble helmet | holds staff in left hand | pink hair | soft music |
| Willa Wish | cloud hiding | rocket belt | holds staff in left hand | silver hair | star bells |
| Glowy Grace | star throwing | bubble helmet | holds staff in right hand | golden hair | star bells |
| Princess Clara | star throwing | star goggles | holds staff in right hand | golden hair | sweet tea |
| Zoe Zenith | star throwing | silver boots | holds staff in left hand | silver hair | sweet tea |
| Nova Nora | cloud hiding | bubble helmet | holds staff in right hand | pink hair | sweet tea |
| Bella Sparkle | star throwing | bubble helmet | holds staff in right hand | pink hair | sweet tea |
| Danny Dust | glow flying | bubble helmet | holds staff in right hand | golden hair | star bells |
| Princess Luna | glow flying | rocket belt | holds staff in right hand | golden hair | soft music |
| Robby Rocket | moon walking | silver boots | holds staff in right hand | silver hair | sweet tea |
| Penny Planet | star throwing | rocket belt | holds staff in right hand | pink hair | sweet tea |
| Skyler Star | moon walking | silver boots | holds staff in right hand | golden hair | soft music |
| Starlight Stella | glow flying | star goggles | holds staff in right hand | pink hair | sweet tea |
| Comet Cody | moon walking | star goggles | holds staff in left hand | pink hair | sweet tea |
| Prince Oliver | star throwing | glitter cape | holds staff in right hand | pink hair | star bells |
| Prince Leo | cloud hiding | glitter cape | holds staff in right hand | pink hair | sweet tea |
| Sunny Sam | star throwing | glitter cape | holds staff in right hand | golden hair | soft music |
| Benny Beam | moon walking | glitter cape | holds staff in left hand | golden hair | soft music |
| Felix Float | cloud hiding | bubble helmet | holds staff in left hand | pink hair | soft music |
| Pip the Pixie | glow flying | bubble helmet | holds staff in right hand | silver hair | soft music |
| Moony Mia | cloud hiding | star goggles | holds staff in left hand | pink hair | sweet tea |
Clue 1
Fractions of a number
Princess Clara has six star cookies. She gives half of them to a space bunny. In return, the bunny gives us a note.
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
34
24
26
T
34
24
28
26
36
37
2
26
39
4
2
T
34
25
26
35
10
35
10
2
30
21
26
T
34
33
26
15
T
34
1/2 of 68 =T
3/6 of 42 =K
4/8 of 70 =A
2/10 of 120 =H
1/5 of 20 =N
4/8 of 52 =E
6/8 of 52 =S
2/10 of 185 =D
1/2 of 50 =W
8/10 of 35 =I
3/5 of 25 =L
1/8 of 16 =O
3/4 of 44 =B
5/8 of 48 =C
4/5 of 45 =F
4/8 of 20 =R
0/16 letters found
Clue 2
Multiplication facts (1-12)
We find rows of glowing moon plants. Counting them in groups helps us unlock a hidden star box.
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
20
32
90
T
20
32
30
90
2
32
90
100
81
T
20
32
90
50
T
20
22
2
2
30
6
T
20
32
90
48
30
24
32
T
20
32
22
6
81
5 × 4 =T
10 × 9 =E
10 × 10 =L
8 × 4 =H
2 × 11 =A
10 × 3 =I
9 × 9 =D
2 × 1 =F
8 × 6 =R
2 × 12 =G
5 × 10 =S
3 × 2 =N
0/12 letters found
Clue 3
Rounding
The moon ship radar only shows numbers rounded to the nearest ten. Read the screen to spot 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.
T
200
20
500
900
80
600
600
90
80
60
700
90
T
200
300
800
40
60
30
800
400
700
40
500
500
T
200
600
70
60
90
400
T
200
500
90
Round 182 to the nearest hundredT
Round 76 to the nearest tenI
Round 90 to the nearest tenA
Round 849 to the nearest hundredO
Round 911 to the nearest hundredV
Round 541 to the nearest hundredE
Round 594 to the nearest hundredL
Round 23 to the nearest tenH
Round 444 to the nearest hundredR
Round 39 to the nearest tenW
Round 303 to the nearest hundredD
Round 29 to the nearest tenF
Round 69 to the nearest tenU
Round 61 to the nearest tenN
Round 731 to the nearest hundredS
0/15 letters found
Clue 4
Skip counting
To cross the star bridge, we must step on every second star. Follow the pattern to find the clue.
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
15
36
24
130
140
9
6
39
40
10
12
65
18
26
21
26
10
39
9
6
130
24
30
12
9
120
18
39
12
10
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160U
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36P
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30F
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42E
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75G
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50B
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16I
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140K
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14R
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45A
0/17 letters found
Clue 5
Division facts (1-12) — the last clue
We have twelve magic moon stones. We share them equally among three space friends to hear their secret.
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
36 ÷ 12 = ?
9 ÷ 9 = ?
40 ÷ 5 = ?
70 ÷ 10 = ?
144 ÷ 12 = ?
32 ÷ 8 = ?
88 ÷ 8 = ?
63 ÷ 7 = ?
55 ÷ 11 = ?
14 ÷ 7 = ?
72 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain flies with a soft glow, then adjusts their star goggles.
2.The villain hides in the pink clouds, then boosts away with a rocket belt.
3.The villain hides in the pink clouds, then swishes their glitter cape.
4.The villain walks slowly on the moon dust, then boosts away with a rocket belt.
5.The villain jumps from comet to comet, then adjusts their star goggles.
6.The villain flies with a soft glow, then taps their bubble helmet.
7.The villain hides in the pink clouds, then adjusts their star goggles.
8.The villain throws glowing stars, then taps their bubble helmet.
9.The villain hides in the pink clouds, then leaves silver boot prints.
10.The villain hides in the pink clouds, then taps their bubble helmet.
11.The villain flies with a soft glow, then leaves silver boot prints.
12.The villain walks slowly on the moon dust, then swishes their glitter cape.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Moon Pearls
Culprit: Nova Nora (cloud hiding · bubble helmet · holds staff in right hand · pink hair · sweet tea)
- Clue 1 (Fractions of a number): "THE THIEF DOES NOT WEAR A ROCKET BELT"1/2 of 68 = 34 (T) · 3/6 of 42 = 21 (K) · 4/8 of 70 = 35 (A) · 2/10 of 120 = 24 (H) · 1/5 of 20 = 4 (N) · 4/8 of 52 = 26 (E) · 6/8 of 52 = 39 (S) · 2/10 of 185 = 37 (D) · 1/2 of 50 = 25 (W) · 8/10 of 35 = 28 (I) · 3/5 of 25 = 15 (L) · 1/8 of 16 = 2 (O) · 3/4 of 44 = 33 (B) · 5/8 of 48 = 30 (C) · 4/5 of 45 = 36 (F) · 4/8 of 20 = 10 (R)
- Clue 2 (Multiplication facts (1-12)): "THE THIEF HELD THE STAFF IN THE RIGHT HAND"5 × 4 = 20 (T) · 10 × 9 = 90 (E) · 10 × 10 = 100 (L) · 8 × 4 = 32 (H) · 2 × 11 = 22 (A) · 10 × 3 = 30 (I) · 9 × 9 = 81 (D) · 2 × 1 = 2 (F) · 8 × 6 = 48 (R) · 2 × 12 = 24 (G) · 5 × 10 = 50 (S) · 3 × 2 = 6 (N)
- Clue 3 (Rounding): "THE VILLAIN SAT DOWN FOR SWEET LUNAR TEA"Round 182 to the nearest hundred = 200 (T) · Round 76 to the nearest ten = 80 (I) · Round 90 to the nearest ten = 90 (A) · Round 849 to the nearest hundred = 800 (O) · Round 911 to the nearest hundred = 900 (V) · Round 541 to the nearest hundred = 500 (E) · Round 594 to the nearest hundred = 600 (L) · Round 23 to the nearest ten = 20 (H) · Round 444 to the nearest hundred = 400 (R) · Round 39 to the nearest ten = 40 (W) · Round 303 to the nearest hundred = 300 (D) · Round 29 to the nearest ten = 30 (F) · Round 69 to the nearest ten = 70 (U) · Round 61 to the nearest ten = 60 (N) · Round 731 to the nearest hundred = 700 (S)
- Clue 4 (Skip counting): "WE FOUND A BRIGHT STRAND OF PINK HAIR"Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (W) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (U) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, ___, 33, 36 = 30 (P) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, ___, 27, 30 = 24 (F) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (E) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, ___, 21, 24 = 18 (H) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (G) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50 = 40 (B) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (N) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, ___, 14, 16 = 12 (I) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (K) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14 = 10 (R) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (A)
- Clue 5 (Division facts (1-12)): surviving statement (box 10) → Nova Nora36 ÷ 12 = 3 · 9 ÷ 9 = 1 · 40 ÷ 5 = 8 · 70 ÷ 10 = 7 · 144 ÷ 12 = 12 · 32 ÷ 8 = 4 · 88 ÷ 8 = 11 · 63 ÷ 7 = 9 · 55 ÷ 11 = 5 · 14 ÷ 7 = 2 · 72 ÷ 12 = 6
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Fractions of a number, Multiplication, Rounding, Skip counting, Division
- Reading level
- grades 1-2
- Theme
- The Mystery of the Moon Pearls — set in The Sparkling Moon Kingdom
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects