Number Vault Practice Worksheet
SYS_SEC_V4.0
MISSION BRIEF: LEVEL 4
Number Vault Decoder
Place value conversions up to 1,000,000 (Standard, Expanded, & Word form).
Agent:
Date: Code:
Lock 01
Standard to Expanded Form
Crack each lock code by expanding the multi-digit numbers into their place values.
43,085
=
209,740
=
856,003
=
Lock 02
Word to Standard Form
Translate the written security phrases into standard digits.
Five hundred twelve thousand, six hundred eight
=
Seventy-three thousand, four hundred ninety-two
=
Nine hundred thousand, fifty-four
=
Lock 03
Vault Connection
Connect each standard digital code on the left to its matching representation on the right.
A 605,012
B 65,012
C 605,120
D 65,120
1 600,000 + 5,000 + 10 + 2
2 Sixty-five thousand, twelve
3 600,000 + 5,000 + 100 + 20
4 Sixty-five thousand, one hundred twenty
Lock 04
Master Decoder Challenge
Construct the final security keys based on the encrypted place value specifications.
Security Puzzle Alpha
"A security code consists of 5 hundred-thousands, 3 ten-thousands, 8 hundreds, and 2 ones."
Standard Form:
Word Form:
Security Puzzle Beta
"A security code consists of 7 hundred-thousands, 1 ten-thousand, 4 thousands, 6 tens, and 9 ones."
Standard Form:
Expanded Form:
VAULT CONVERT LEVEL-04
SECURE ENCRYPTION PROTOCOL
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Number Vault Answer Key
MASTER ANSWER KEY
EVALUATION METRIC: LEVEL 4
Number Vault Decoder Key
Completed solutions for multi-digit whole numbers up to 1,000,000.
Agent: OFFICIAL ANSWER KEY
Date: IMMEDIATE Code: V-04
Lock 01
Standard to Expanded Form
Crack each lock code by expanding the multi-digit numbers into their place values.
43,085
= 40,000 + 3,000 + 80 + 5
209,740
= 200,000 + 9,000 + 700 + 40
856,003
= 800,000 + 50,000 + 6,000 + 3
Lock 02
Word to Standard Form
Translate the written security phrases into standard digits.
Five hundred twelve thousand, six hundred eight
=
512,608
Seventy-three thousand, four hundred ninety-two
=
73,492
Nine hundred thousand, fifty-four
=
900,054
Lock 03
Vault Connection
Connect each standard digital code on the left to its matching representation on the right.
A 605,012
B 65,012
C 605,120
D 65,120
1 600,000 + 5,000 + 10 + 2 [ MATCHES A ]
2 Sixty-five thousand, twelve [ MATCHES B ]
3 600,000 + 5,000 + 100 + 20 [ MATCHES C ]
4 Sixty-five thousand, one hundred twenty [ MATCHES D ]
Lock 04
Master Decoder Challenge
Construct the final security keys based on the encrypted place value specifications.
Security Puzzle Alpha
"A security code consists of 5 hundred-thousands, 3 ten-thousands, 8 hundreds, and 2 ones."
Standard Form:
530,802
Word Form:
Five hundred thirty thousand, eight hundred two
Security Puzzle Beta
"A security code consists of 7 hundred-thousands, 1 ten-thousand, 4 thousands, 6 tens, and 9 ones."
Standard Form:
714,069
Expanded Form:
700,000 + 10,000 + 4,000 + 60 + 9
VAULT DECODER KEY LEVEL-04
SECURE ENCRYPTION KEY
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