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🦄 UnicornsGrade 5Reading: grades 5-6Fractions of a numberOrder of operationsMultiplicationRoundingDivision

The Great Prism Valley Capers

The peaceful meadows of Prism Valley are in a panic! A rogue unicorn has snuck into the royal stables and stolen the mythical Starstone. As lead detective of the Glitter Guard, you must track down the culprit before the valley loses its beautiful rainbows forever.

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameMagic SpecialtyInherent GiftSparkle BiasMane ColorSecret Fear
Jubileerainbow-blastingglitter teleportationleft-hooved sparklerneon pink manemarshmallow bait
Zephyrrainbow-blastingrainbow shieldingright-hooved sparklerglittering silver manerustling plastic bags
Holohorn-glowingcrystal conjuringright-hooved sparklerneon pink manesour lemon drops
Velvetsparkle-dustingstarlight levitationright-hooved sparklerglittering silver manesour lemon drops
Utopiacloud-shapingrainbow shieldingleft-hooved sparklerglittering silver manesour lemon drops
Mistysparkle-dustingdream weavingleft-hooved sparklerglittering silver manerustling plastic bags
Lunacloud-shapingrainbow shieldingright-hooved sparklerpastel purple manemarshmallow bait
Dapplerainbow-blastingcrystal conjuringleft-hooved sparklerglittering silver manemarshmallow bait
Raindropsparkle-dustingstarlight levitationleft-hooved sparklerglittering silver manerustling plastic bags
Quartzhorn-glowingcrystal conjuringleft-hooved sparklerglittering silver manerustling plastic bags
Barnabysparkle-dustingstarlight levitationright-hooved sparklerglittering silver manemarshmallow bait
Iriscloud-shapingrainbow shieldingleft-hooved sparklerneon pink manemarshmallow bait
Stardustcloud-shapingrainbow shieldingleft-hooved sparklerpastel purple manemarshmallow bait
Twinklehorn-glowingglitter teleportationleft-hooved sparklerneon pink manemarshmallow bait
Opalcloud-shapingdream weavingleft-hooved sparklerpastel purple manerustling plastic bags
Celestiahorn-glowingstarlight levitationleft-hooved sparklerneon pink manerustling plastic bags
Fluttermelody-hummingcrystal conjuringleft-hooved sparklerglittering silver manerustling plastic bags
Glimmerrainbow-blastingrainbow shieldingright-hooved sparklerpastel purple manesour lemon drops
Nebulasparkle-dustingrainbow shieldingleft-hooved sparklerglittering silver manerustling plastic bags
Eclipsehorn-glowingstarlight levitationright-hooved sparklerneon pink manemarshmallow bait
Amethystrainbow-blastingcrystal conjuringright-hooved sparklerglittering silver manerustling plastic bags
Clue 1

Fractions of a number

We found a torn recipe for magic cloud-bread near the scene. Only a fraction of the golden flour was used, and we need to calculate that portion to find our first lead.

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
10
39
3
26
37
15
15
8
37
33
7
28
3
31
33
28
T
10
11
3
8
26
3
7
17
3
8
6
31
2/6 of 30 =T
2/6 of 117 =H
2/10 of 185 =I
1/8 of 136 =R
2/8 of 44 =W
6/10 of 55 =N
1/6 of 48 =A
5/10 of 56 =O
1/6 of 42 =D
1/4 of 12 =E
3/4 of 8 =M
4/8 of 30 =L
2/4 of 62 =S
2/6 of 78 =V
0/14 letters found
Clue 2

Order of operations

A magical combination lock blocks the star-gate. To crack the code and trace the culprit, we must solve a tricky sequence of symbols using the strict order of operations.

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
8
27
61
26
29
63
27
T
8
29
73
63
26
26
27
76
53
28
19
61
25
T
8
27
76
76
25
61
75
26
39
28
45
50
19
61
2 + 2 × 3 =T
10 × 8 - 27 =W
13 + 5 × 3 =A
58 + 2 × 9 =O
8 × 11 - 25 =G
9 × 11 - 26 =N
5 × 10 - 5 =R
5 × 10 - 23 =H
8 × 6 - 23 =F
6 × 6 - 7 =I
6 × 10 - 10 =K
34 + 3 × 9 =E
9 × 10 - 15 =D
3 + 6 × 6 =P
2 + 8 × 3 =S
11 + 4 × 2 =L
0/16 letters found
Clue 3

Multiplication facts (1-12)

The stables keep neat rows of glowing star-carrots. Counting these equal groups will help us figure out how many rations the thief swiped for their escape.

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
3
25
T
80
10
24
72
25
T
80
24
77
20
5
64
24
60
11
24
77
5
T
80
56
32
20
72
96
56
10
5
T
80
32
28
8 × 10 =T
8 × 9 =G
8 × 12 =P
1 × 11 =M
11 × 7 =U
1 × 5 =S
5 × 5 =E
1 × 3 =H
10 × 2 =N
4 × 7 =C
8 × 8 =F
6 × 10 =O
4 × 8 =I
2 × 12 =R
7 × 8 =L
1 × 10 =A
0/16 letters found
Clue 4

Rounding

Our magic radar screen is blurry from glitter interference. It only shows the villain's flight path rounded to the nearest ten leagues, so we have to estimate carefully.

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
700
900
1700
50
1300
290
170
4300
300
1300
2900
4300
900
290
30
4300
S
700
290
1300
110
2000
50
1300
290
1300
3000
Round 738 to the nearest hundredS
Round 2,013 to the nearest thousandO
Round 863 to the nearest hundredI
Round 47 to the nearest tenV
Round 286 to the nearest tenR
Round 2,879 to the nearest hundredH
Round 4,285 to the nearest hundredA
Round 167 to the nearest tenM
Round 349 to the nearest hundredN
Round 28 to the nearest tenW
Round 1,680 to the nearest hundredL
Round 3,063 to the nearest thousandD
Round 1,293 to the nearest hundredE
Round 108 to the nearest tenC
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

We recovered a sack of sparkling star-gems dropped during the escape. Sharing them equally among our tracking squads will reveal the exact coordinates of the hideout.

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
18 ÷ 6 = ?
24 ÷ 4 = ?
64 ÷ 8 = ?
4 ÷ 2 = ?
42 ÷ 6 = ?
30 ÷ 3 = ?
110 ÷ 10 = ?
99 ÷ 11 = ?
48 ÷ 4 = ?
32 ÷ 8 = ?
9 ÷ 9 = ?
Step 2 — cross out the sentence with each answer
1.The villain swiped the magic horn-polish, then galloped through the star-gate.
2.The villain shattered the prisma-crystal, then hopped onto a storm cloud.
3.The villain swiped the magic horn-polish, then sprinted into the whispering woods.
4.The villain swiped the magic horn-polish, then vanished in a pink puff.
5.The villain nicked the silver bridle, then hopped onto a storm cloud.
6.The villain stole the golden clover, then sprinted into the whispering woods.
7.The villain stole the golden clover, then vanished in a pink puff.
8.The villain nicked the silver bridle, then galloped through the star-gate.
9.The villain scrambled the stardust map, then galloped through the star-gate.
10.The villain shattered the prisma-crystal, then vanished in a pink puff.
11.The villain nicked the silver bridle, then sprinted into the whispering woods.
12.The villain scrambled the stardust map, then dashed down the rainbow path.
Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Great Prism Valley Capers

Culprit: Nebula (sparkle-dusting · rainbow shielding · left-hooved sparkler · glittering silver mane · rustling plastic bags)
  1. Clue 1 (Fractions of a number): "THE VILLAIN DOES NOT WEAVE DREAMS"
    2/6 of 30 = 10 (T) · 2/6 of 117 = 39 (H) · 2/10 of 185 = 37 (I) · 1/8 of 136 = 17 (R) · 2/8 of 44 = 11 (W) · 6/10 of 55 = 33 (N) · 1/6 of 48 = 8 (A) · 5/10 of 56 = 28 (O) · 1/6 of 42 = 7 (D) · 1/4 of 12 = 3 (E) · 3/4 of 8 = 6 (M) · 4/8 of 30 = 15 (L) · 2/4 of 62 = 31 (S) · 2/6 of 78 = 26 (V)
  2. Clue 2 (Order of operations): "THE SIGHTINGS SHOW A LEFT HOOFED SPARKLE"
    2 + 2 × 3 = 8 (T) · 10 × 8 - 27 = 53 (W) · 13 + 5 × 3 = 28 (A) · 58 + 2 × 9 = 76 (O) · 8 × 11 - 25 = 63 (G) · 9 × 11 - 26 = 73 (N) · 5 × 10 - 5 = 45 (R) · 5 × 10 - 23 = 27 (H) · 8 × 6 - 23 = 25 (F) · 6 × 6 - 7 = 29 (I) · 6 × 10 - 10 = 50 (K) · 34 + 3 × 9 = 61 (E) · 9 × 10 - 15 = 75 (D) · 3 + 6 × 6 = 39 (P) · 2 + 8 × 3 = 26 (S) · 11 + 4 × 2 = 19 (L)
  3. Clue 3 (Multiplication facts (1-12)): "THE TARGET RUNS FROM RUSTLING PLASTIC"
    8 × 10 = 80 (T) · 8 × 9 = 72 (G) · 8 × 12 = 96 (P) · 1 × 11 = 11 (M) · 11 × 7 = 77 (U) · 1 × 5 = 5 (S) · 5 × 5 = 25 (E) · 1 × 3 = 3 (H) · 10 × 2 = 20 (N) · 4 × 7 = 28 (C) · 8 × 8 = 64 (F) · 6 × 10 = 60 (O) · 4 × 8 = 32 (I) · 2 × 12 = 24 (R) · 7 × 8 = 56 (L) · 1 × 10 = 10 (A)
  4. Clue 4 (Rounding): "SILVER MANE HAIR WAS RECOVERED"
    Round 738 to the nearest hundred = 700 (S) · Round 2,013 to the nearest thousand = 2000 (O) · Round 863 to the nearest hundred = 900 (I) · Round 47 to the nearest ten = 50 (V) · Round 286 to the nearest ten = 290 (R) · Round 2,879 to the nearest hundred = 2900 (H) · Round 4,285 to the nearest hundred = 4300 (A) · Round 167 to the nearest ten = 170 (M) · Round 349 to the nearest hundred = 300 (N) · Round 28 to the nearest ten = 30 (W) · Round 1,680 to the nearest hundred = 1700 (L) · Round 3,063 to the nearest thousand = 3000 (D) · Round 1,293 to the nearest hundred = 1300 (E) · Round 108 to the nearest ten = 110 (C)
  5. Clue 5 (Division facts (1-12)): surviving statement (box 5) → Nebula
    18 ÷ 6 = 3 · 24 ÷ 4 = 6 · 64 ÷ 8 = 8 · 4 ÷ 2 = 2 · 42 ÷ 6 = 7 · 30 ÷ 3 = 10 · 110 ÷ 10 = 11 · 99 ÷ 11 = 9 · 48 ÷ 4 = 12 · 32 ÷ 8 = 4 · 9 ÷ 9 = 1

About this mystery

Grade level
Grade 5 math
Math topics
Fractions of a number, Order of operations, Multiplication, Rounding, Division
Reading level
grades 5-6
Theme
The Great Prism Valley Capers — set in Prism Valley
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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