Math Mysteries
🔎 MarvelGrade 3Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Helicarrier Heist

An intruder has breached the S.H.I.E.L.D. Helicarrier and stolen a glowing vibranium reactor. Nick Fury needs you to scan the clues, solve the puzzles, and identify the thief!

Suspects

Possible suspects

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

21 of 21 still in play
Nameprimary gadgetsecurity clearanceaction stancedisguise hair colorgear vulnerability
Draxlaser gogglesomega clearanceright handed combatjet black wigloud whistle
Carol Danversgravity bootsbeta clearanceright handed combatneon blue wigloud whistle
T Challahologram beltalpha clearanceright handed combatjet black wigwater splash
Danny Randsonic blasteralpha clearanceright handed combatbright red wigmagnet pull
Matt Murdockgravity bootsgamma clearanceright handed combatjet black wigmagnet pull
Wanda Maximoffhologram beltdelta clearanceright handed combatbright red wigwater splash
Sam Wilsonlaser gogglesalpha clearanceleft handed combatneon blue wigmagnet pull
Stephen Strangemagnetic glovesbeta clearanceleft handed combatneon blue wigwater splash
Bucky Barnesmagnetic glovesomega clearanceleft handed combatjet black wigwater splash
Hope van Dynelaser gogglesbeta clearanceleft handed combatbright red wigmagnet pull
Steve Rogershologram beltbeta clearanceleft handed combatbright red wigmagnet pull
Bruce Bannerlaser gogglesgamma clearanceright handed combatneon blue wigloud whistle
Thor Odinsonlaser gogglesdelta clearanceleft handed combatbright red wigloud whistle
Gamoralaser gogglesdelta clearanceright handed combatjet black wigloud whistle
Jessica Jonesmagnetic glovesbeta clearanceleft handed combatbright red wigmagnet pull
Natasha Romanoffsonic blasterdelta clearanceleft handed combatjet black wigmagnet pull
Scott Langhologram beltgamma clearanceleft handed combatbright red wigmagnet pull
Kamala Khangravity bootsalpha clearanceright handed combatbright red wigmagnet pull
Peter Parkerhologram beltalpha clearanceleft handed combatbright red wigmagnet pull
Clint Bartongravity bootsdelta clearanceright handed combatjet black wigwater splash
Tony Starkhologram beltalpha clearanceleft handed combatneon blue wigloud whistle
Clue 1

Rounding

S.H.I.E.L.D. radar detected energy waves, but the screens only show numbers rounded to the nearest ten.

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
9000
80
3000
4000
5000
3000
7000
T
9000
6000
20
3000
60
7000
20
T
9000
80
4000
300
3000
5000
4000
70
70
4000
400
2000
3000
4000
500
4000
7000
400
3000
Round 8,887 to the nearest thousandT
Round 5,875 to the nearest thousandD
Round 73 to the nearest tenM
Round 254 to the nearest hundredV
Round 476 to the nearest hundredR
Round 386 to the nearest hundredC
Round 56 to the nearest tenS
Round 2,436 to the nearest thousandL
Round 5,022 to the nearest thousandG
Round 7,039 to the nearest thousandN
Round 82 to the nearest tenH
Round 23 to the nearest tenO
Round 2,828 to the nearest thousandE
Round 3,545 to the nearest thousandA
0/14 letters found
Clue 2

Addition

We must count all the spare vibranium batteries left in the storage crates to find the missing batch.

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
911
203
575
591
405
575
499
T
911
472
437
575
479
T
911
203
575
522
501
582
575
813
T
911
203
591
499
479
T
911
391
813
522
405
203
T
911
454 + 457 =T
215 + 360 =E
186 + 219 =G
266 + 125 =O
168 + 333 =R
567 + 246 =F
217 + 365 =L
121 + 82 =H
297 + 140 =S
347 + 152 =N
198 + 393 =A
364 + 158 =I
313 + 166 =D
153 + 319 =U
0/14 letters found
Clue 3

Subtraction

The escaping villain dropped some tracking beacon devices, leaving us with fewer signals to follow.

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
788
742
400
186
735
642
819
398
A
788
819
642
895
400
836
637
107
107
400
186
A
788
269
400
760
637
742
631
637
107
107
A
788
637
642
1160 - 372 =A
776 - 16 =H
872 - 230 =N
693 - 293 =T
298 - 29 =P
894 - 58 =W
896 - 1 =E
1062 - 243 =G
965 - 334 =V
444 - 258 =R
661 - 24 =I
1047 - 305 =S
820 - 85 =O
365 - 258 =L
705 - 307 =M
0/15 letters found
Clue 4

Multiplication facts (1-12)

We spotted several identical supply boxes stacked in rows of three, and we must find the total count.

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
4
22
48
64
121
36
84
88
9
70
132
144
54
9
22
84
W
4
70
132
1
54
9
10
36
84
1
70
36
54
144
22
40
22
36
54
4 × 1 =W
9 × 6 =T
12 × 12 =H
4 × 9 =N
2 × 11 =E
8 × 8 =O
11 × 11 =U
7 × 12 =D
4 × 12 =F
7 × 10 =I
1 × 10 =A
8 × 11 =B
1 × 1 =S
12 × 11 =G
5 × 8 =V
9 × 1 =R
0/16 letters found
Clue 5

Division facts (1-12) — the last clue

Tony Stark wants to share the remaining tracking sensors equally among our strike teams.

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
8 ÷ 4 = ?
7 ÷ 7 = ?
24 ÷ 6 = ?
48 ÷ 4 = ?
60 ÷ 6 = ?
15 ÷ 5 = ?
63 ÷ 7 = ?
12 ÷ 2 = ?
22 ÷ 2 = ?
63 ÷ 9 = ?
64 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain melted the thick steel door with laser goggles, then unlocked the beta level control panel.
2.The villain fooled the security cameras with a hologram belt, then unlocked the beta level control panel.
3.The villain floated up to the ceiling with gravity boots, then disabled the delta level alarm grid.
4.The villain climbed the metal walls with magnetic gloves, then unlocked the beta level control panel.
5.The villain fooled the security cameras with a hologram belt, then bypassed the alpha level firewall.
6.The villain fooled the security cameras with a hologram belt, then disabled the delta level alarm grid.
7.The villain shattered the vault window with a sonic blaster, then hacked the omega level mainframe.
8.The villain floated up to the ceiling with gravity boots, then hacked the omega level mainframe.
9.The villain melted the thick steel door with laser goggles, then swiped the gamma level energy core.
10.The villain shattered the vault window with a sonic blaster, then swiped the gamma level energy core.
11.The villain climbed the metal walls with magnetic gloves, then disabled the delta level alarm grid.
12.The villain melted the thick steel door with laser goggles, then hacked the omega level mainframe.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Rounding, Addition, Subtraction, Multiplication, Division
Reading level
grades 3-4
Theme
The Helicarrier Heist — set in S.H.I.E.L.D. Helicarrier
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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