🐉 Ninjago Dragons RisingGrade 4Reading: grades 3-4MultiplicationRoundingPlace valueFractions of a numberDivision
The Cross-World Energy Heist
A mysterious rogue fighter has stolen a glowing dragon egg from the Crossroads Market! Lloyd and the team of new heroes need your math skills to track down the culprit before the egg hatches in the wrong hands.
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 | Elemental Power | Mech Gear | Combat Stance | Ninja Headgear | Critical Weakness |
|---|---|---|---|---|---|
| Lobbo | Lightning Spin | Invisibility | Right-handed grip | Spiky red hair | Lava dragon juice |
| Zane | Tech-Build | Chrono-Slow | Right-handed grip | Silver metal mask | Sora tech tracker |
| Sora | Lightning Spin | Chrono-Slow | Right-handed grip | Spiky red hair | Lava dragon juice |
| Wyldfyre | Earth Quake | Chrono-Slow | Right-handed grip | Spiky red hair | Sora tech tracker |
| Riyu | Earth Quake | Invisibility | Right-handed grip | Silver metal mask | Lava dragon juice |
| Nya | Heatwave Flame | Shockwave Blast | Right-handed grip | Silver metal mask | Lava dragon juice |
| Nokt | Tech-Build | Invisibility | Left-handed grip | Spiky red hair | Lava dragon juice |
| Galt | Earth Quake | Gravity Grapple | Right-handed grip | Silver metal mask | Sora tech tracker |
| Arin | Heatwave Flame | Glider Wings | Left-handed grip | Spiky red hair | High pitch whistle |
| Rapton | Water Torrent | Invisibility | Right-handed grip | Silver metal mask | High pitch whistle |
| Zehra | Heatwave Flame | Chrono-Slow | Right-handed grip | Silver metal mask | Lava dragon juice |
| Cinder | Heatwave Flame | Invisibility | Right-handed grip | Spiky red hair | Sora tech tracker |
| Ras | Water Torrent | Chrono-Slow | Right-handed grip | Silver metal mask | Lava dragon juice |
| Bonzle | Heatwave Flame | Shockwave Blast | Left-handed grip | Horned green hood | Sora tech tracker |
| Kreel | Lightning Spin | Gravity Grapple | Right-handed grip | Silver metal mask | High pitch whistle |
| Cole | Tech-Build | Gravity Grapple | Right-handed grip | Silver metal mask | Lava dragon juice |
| Kai | Earth Quake | Glider Wings | Left-handed grip | Spiky red hair | Lava dragon juice |
| Taz | Water Torrent | Invisibility | Right-handed grip | Horned green hood | High pitch whistle |
| Beatrix | Tech-Build | Glider Wings | Left-handed grip | Silver metal mask | Lava dragon juice |
| Geo | Tech-Build | Shockwave Blast | Left-handed grip | Silver metal mask | Lava dragon juice |
| Frak | Water Torrent | Gravity Grapple | Right-handed grip | Horned green hood | Sora tech tracker |
Clue 1
Multiplication facts (1-12)
Arin counts rows of Photac energy cores in the imperial ship. Each row has the same number of cores. Multiply them to find the total power level and unlock the first 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.
T
108
3
4
100
144
18
18
24
144
54
66
88
4
80
54
88
T
108
3
24
100
4
144
54
100
144
80
144
44
144
18
144
T
108
36
12 × 9 =T
8 × 10 =S
2 × 9 =L
1 × 4 =E
11 × 4 =B
10 × 10 =V
12 × 12 =I
3 × 1 =H
8 × 11 =O
6 × 11 =D
9 × 6 =N
4 × 6 =A
9 × 4 =Y
0/13 letters found
Clue 2
Rounding
Sora checks her mech radar screen. The distant signal jumps quickly, so she rounds the power number to the nearest ten to pinpoint the enemy location and read the trace.
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
2000
230
30
3000
500
4300
4300
90
500
200
130
170
30
170
90
300
500
900
230
T
2000
230
90
200
9000
30
9000
900
300
500
1300
Round 2,256 to the nearest thousandT
Round 229 to the nearest tenH
Round 854 to the nearest hundredG
Round 242 to the nearest hundredN
Round 272 to the nearest hundredR
Round 28 to the nearest tenE
Round 1,252 to the nearest hundredP
Round 2,669 to the nearest thousandV
Round 4,319 to the nearest hundredL
Round 9,072 to the nearest thousandD
Round 529 to the nearest hundredI
Round 90 to the nearest tenA
Round 134 to the nearest tenU
Round 170 to the nearest tenS
0/14 letters found
Clue 3
Place value
Inside the ancient Dragon Temple, a locked panel demands a specific security code. Lloyd looks at the digit in the hundreds place to crack the lock and find this 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.
L
4000
7000
600
7000
20
6000
7000
50
9000
30
400
10
700
90
100
8000
700
L
4000
L
4000
5000
500
9000
800
500
60
100
40
9000
100
What is the value of the 4 in 14,928?L
What is the value of the 6 in 768?H
What is the value of the 9 in 691?C
What is the value of the 4 in 9,412?J
What is the value of the 2 in 7,025?D
What is the value of the 7 in 1,738?I
What is the value of the 5 in 8,547?T
What is the value of the 5 in 85,426?S
What is the value of the 1 in 128?E
What is the value of the 4 in 6,749?F
What is the value of the 8 in 8,213?W
What is the value of the 1 in 4,013?U
What is the value of the 8 in 853?P
What is the value of the 3 in 431?N
What is the value of the 9 in 9,276?O
What is the value of the 5 in 4,850?G
What is the value of the 6 in 36,280?R
What is the value of the 6 in 682?V
What is the value of the 7 in 97,343?A
0/19 letters found
Clue 4
Fractions of a number
Wyldfyre gathers a bunch of glowing heat crystals. She needs a specific fraction of the total bunch to power up her gauntlet and melt the shield hiding a 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.
S
18
20
31
8
32
35
22
32
13
17
31
22
17
S
18
10
40
25
20
24
S
18
37
32
35
32
12
16
5
23
36
3/4 of 24 =S
2/8 of 124 =L
3/6 of 80 =C
7/10 of 50 =R
2/6 of 39 =T
1/10 of 170 =A
8/10 of 25 =I
8/10 of 40 =E
3/10 of 40 =F
5/10 of 46 =N
4/6 of 36 =P
1/8 of 80 =K
4/8 of 72 =D
5/10 of 50 =H
1/5 of 185 =W
2/6 of 15 =U
5/10 of 32 =O
2/10 of 40 =V
4/10 of 55 =M
0/19 letters found
Clue 5
Division facts (1-12) — the last clue
Riyu has a bundle of sweet star-fruit. He wants to divide them equally among his ninja friends. Help him share the treats to reveal the final piece of the mystery!
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
60 ÷ 5 = ?
48 ÷ 6 = ?
16 ÷ 4 = ?
24 ÷ 4 = ?
30 ÷ 6 = ?
35 ÷ 5 = ?
3 ÷ 3 = ?
55 ÷ 5 = ?
90 ÷ 10 = ?
33 ÷ 11 = ?
90 ÷ 9 = ?
Step 2 — cross out the sentence with each answer
1.The villain creates a massive lightning tornado, then slows down time to slip past the lasers.
2.The villain summons a heavy wave of glowing water, then slows down time to slip past the lasers.
3.The villain summons a heavy wave of glowing water, then flies away on sleek silver glider wings.
4.The villain shoots a blast of pure fire, then slows down time to slip past the lasers.
5.The villain creates a massive lightning tornado, then escapes using a magnetic gravity grapple.
6.The villain builds a giant metal defense wall, then knocks back the guards with a shockwave blast.
7.The villain cracks the ground with raw earth force, then slows down time to slip past the lasers.
8.The villain builds a giant metal defense wall, then escapes using a magnetic gravity grapple.
9.The villain summons a heavy wave of glowing water, then blends into the shadows with active camouflage.
10.The villain cracks the ground with raw earth force, then blends into the shadows with active camouflage.
11.The villain builds a giant metal defense wall, then flies away on sleek silver glider wings.
12.The villain shoots a blast of pure fire, then knocks back the guards with a shockwave blast.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Cross-World Energy Heist
Culprit: Ras (Water Torrent · Chrono-Slow · Right-handed grip · Silver metal mask · Lava dragon juice)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT HAVE INVISIBILITY"12 × 9 = 108 (T) · 8 × 10 = 80 (S) · 2 × 9 = 18 (L) · 1 × 4 = 4 (E) · 11 × 4 = 44 (B) · 10 × 10 = 100 (V) · 12 × 12 = 144 (I) · 3 × 1 = 3 (H) · 8 × 11 = 88 (O) · 6 × 11 = 66 (D) · 9 × 6 = 54 (N) · 4 × 6 = 24 (A) · 9 × 4 = 36 (Y)
- Clue 2 (Rounding): "THE VILLAIN USES A RIGHT HANDED GRIP"Round 2,256 to the nearest thousand = 2000 (T) · Round 229 to the nearest ten = 230 (H) · Round 854 to the nearest hundred = 900 (G) · Round 242 to the nearest hundred = 200 (N) · Round 272 to the nearest hundred = 300 (R) · Round 28 to the nearest ten = 30 (E) · Round 1,252 to the nearest hundred = 1300 (P) · Round 2,669 to the nearest thousand = 3000 (V) · Round 4,319 to the nearest hundred = 4300 (L) · Round 9,072 to the nearest thousand = 9000 (D) · Round 529 to the nearest hundred = 500 (I) · Round 90 to the nearest ten = 90 (A) · Round 134 to the nearest ten = 130 (U) · Round 170 to the nearest ten = 170 (S)
- Clue 3 (Place value): "LAVA DRAGON JUICE WILL STOP THE FOE"What is the value of the 4 in 14,928? = 4000 (L) · What is the value of the 6 in 768? = 60 (H) · What is the value of the 9 in 691? = 90 (C) · What is the value of the 4 in 9,412? = 400 (J) · What is the value of the 2 in 7,025? = 20 (D) · What is the value of the 7 in 1,738? = 700 (I) · What is the value of the 5 in 8,547? = 500 (T) · What is the value of the 5 in 85,426? = 5000 (S) · What is the value of the 1 in 128? = 100 (E) · What is the value of the 4 in 6,749? = 40 (F) · What is the value of the 8 in 8,213? = 8000 (W) · What is the value of the 1 in 4,013? = 10 (U) · What is the value of the 8 in 853? = 800 (P) · What is the value of the 3 in 431? = 30 (N) · What is the value of the 9 in 9,276? = 9000 (O) · What is the value of the 5 in 4,850? = 50 (G) · What is the value of the 6 in 36,280? = 6000 (R) · What is the value of the 6 in 682? = 600 (V) · What is the value of the 7 in 97,343? = 7000 (A)
- Clue 4 (Fractions of a number): "SILVER METAL MASK CHIPS WERE FOUND"3/4 of 24 = 18 (S) · 2/8 of 124 = 31 (L) · 3/6 of 80 = 40 (C) · 7/10 of 50 = 35 (R) · 2/6 of 39 = 13 (T) · 1/10 of 170 = 17 (A) · 8/10 of 25 = 20 (I) · 8/10 of 40 = 32 (E) · 3/10 of 40 = 12 (F) · 5/10 of 46 = 23 (N) · 4/6 of 36 = 24 (P) · 1/8 of 80 = 10 (K) · 4/8 of 72 = 36 (D) · 5/10 of 50 = 25 (H) · 1/5 of 185 = 37 (W) · 2/6 of 15 = 5 (U) · 5/10 of 32 = 16 (O) · 2/10 of 40 = 8 (V) · 4/10 of 55 = 22 (M)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Ras60 ÷ 5 = 12 · 48 ÷ 6 = 8 · 16 ÷ 4 = 4 · 24 ÷ 4 = 6 · 30 ÷ 6 = 5 · 35 ÷ 5 = 7 · 3 ÷ 3 = 1 · 55 ÷ 5 = 11 · 90 ÷ 10 = 9 · 33 ÷ 11 = 3 · 90 ÷ 9 = 10
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Multiplication, Rounding, Place value, Fractions of a number, Division
- Reading level
- grades 3-4
- Theme
- The Cross-World Energy Heist — set in Crossroads Market
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects