Digit Detectives Exit Ticket Confidential Case File
Digit Detectives
Bureau of Place Value & Math Investigation
Detective Name:
Date of Mission:
Badge Number (Class #):
Case Briefing: The Six-Digit Code
We have intercepted two mysterious numeric codes. Convert these large numbers into their required forms to crack the vault and complete your mission!
CASE #101
The Word Form Clue
"Our suspect was seen entering a vault with the passcode written as:
A. Write this code in Standard Form (just numbers):
B. Write this code in Expanded Form (stretch it out):
CASE #102
The Expanded Clue
"A hidden ledger contained this expanded sequence:
A. Write this code in Standard Form (watch out for empty places!):
B. Write this code in Word Form (write the number name):
MISSION STATUS: ACTIVE // 4.NBT.A.2
Detective Sign-Off:
Digit Detectives Homework Official Homework Case
Digit Detectives
Bureau of Place Value & Math Investigation // Field Assignment
Agent Name:
Mission Date:
Agent Badge (Class #):
Agent's Field Guide: 6-Digit Place Value
Hundred Thousands
Ten Thousands
Thousands
Hundreds
Tens
Ones
100,000
10,000
1,000
100
10
1
ASSIGNMENT #1
The Locked Safe
An operative locked their vault using the standard code: 603,450 . Complete the reports below to document this code in your case files.
A. Expand the code into its place values (Expanded Form):
B. Write the code in words (Word Form):
ASSIGNMENT #2
The Encrypted Clue
We intercepted a voice message spelling out the passcode: "seven hundred ninety-two thousand, five hundred eight" . Document this finding in your report.
A. Write the code using numbers (Standard Form):
B. Expand the code into its place values (Expanded Form):
HOMEWORK ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Parent/Guardian Sign-off:
Dice Decoders Activity Co-Op Team Station
Dice Decoders
Cooperative Place Value Mission // For Groups of 2–4
Squad Member Names:
Date:
Team Badge Name:
Active Station Protocol
Roll: Player 1 rolls a die 6 times to fill the roll tracker box below.Decode: Every agent in the group writes that number in Standard, Expanded, and Word Form.Verify: Compare your work! If everyone agrees, check the "Verified" box and switch rollers for the next round.
ROUND 1 Roller Name: _________________
Rolls:
Standard Form
Expanded Form
Word Form
Verified by Squad
ROUND 2 Roller Name: _________________
Rolls:
Standard Form
Expanded Form
Word Form
Verified by Squad
Dice Decoders Mission File Page 1 of 2
Secure Investigation
Dice Decoders
Cooperative Place Value Mission // Continued
ROUND 3 Roller Name: _________________
Rolls:
Standard Form
Expanded Form
Word Form
Verified by Squad
ROUND 4 Roller Name: _________________
Rolls:
Standard Form
Expanded Form
Word Form
Verified by Squad
The Final Decoders Showdown (Do Together!)
Review your 4 mission codes from page 1 and page 2. Work as a team to crack these two final puzzles:
1. Arrange all four standard codes from Least to Greatest:
_________________ < _________________ < _________________ < _________________
2. Choose your group's LARGEST number. What is the value of the digit in the Ten Thousands place?
Dice Decoders Mission File Page 2 of 2
Digit Detectives Exit Ticket B Confidential Case File B
Digit Detectives
Bureau of Place Value & Math Investigation // Phase B
Detective Name:
Date of Mission:
Badge Number (Class #):
Case Briefing B: Placeholder Trap
Watch your step, Detective! Today's intercepted numbers contain zero placeholders. Don't let them throw off your calculations as you decode!
CASE #201
The Word Form Clue
"A suspicious signal transmit the following sequence in words:
A. Write this code in Standard Form (just numbers):
B. Write this code in Expanded Form (stretch it out):
CASE #202
The Expanded Clue
"The security key was left in pieces on a hard drive:
A. Write this code in Standard Form (watch out for empty places!):
B. Write this code in Word Form (write the number name):
MISSION STATUS: ACTIVE // 4.NBT.A.2
Detective Sign-Off:
Digit Detectives Exit Ticket C Confidential Case File C
Digit Detectives
Bureau of Place Value & Math Investigation // Phase C
Detective Name:
Date of Mission:
Badge Number (Class #):
Case Briefing C: The Master Safe
Excellent progress, Detective. This is your final exit assignment before field deployment. Demonstrate perfect precision to secure your credentials!
CASE #301
The Standard Clue
"A numeric lock shows the following code in standard format:
A. Write this code in Word Form:
B. Write this code in Expanded Form:
CASE #302
The Expanded Clue
"The security blueprints are encrypted with this formula:
A. Write this code in Standard Form:
B. Write this code in Word Form:
MISSION STATUS: ACTIVE // 4.NBT.A.2
Detective Sign-Off:
Digit Detectives Homework B Official Homework Case B
Digit Detectives
Bureau of Place Value & Math Investigation // Homework B
Agent Name:
Mission Date:
Agent Badge (Class #):
ASSIGNMENT #1
The Night Patrol Locker
An agent secured their equipment locker with the passcode: 370,421 . Convert this code into your case log.
A. Write this code in Expanded Form:
B. Write this code in Word Form:
ASSIGNMENT #2
The Secret Broadcast
We intercepted a broadcast announcing: "five hundred thousand, eighty-two" . Document this finding in standard and expanded forms.
A. Write this code in Standard Form (watch out for zero place holders!):
B. Write this code in Expanded Form:
ASSIGNMENT #3
The Inspector's Blunder
Agent Delta recorded the expanded form of 406,190 as:
A. Explain what error Agent Delta made in their calculation:
B. Write the Correct Expanded Form below:
HOMEWORK ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Parent/Guardian Sign-off:
Digit Detectives Homework C Official Homework Case C
Digit Detectives
Bureau of Place Value & Math Investigation // Homework C
Agent Name:
Mission Date:
Agent Badge (Class #):
ASSIGNMENT #1
The Cold Case Vault
A vintage cold-case ledger lists a suspect's deposit with the standard code: 285,014 . Document this code to complete the file.
A. Expand this code into its separate place values (Expanded Form):
B. Write this code in words (Word Form):
ASSIGNMENT #2
The Blueprint Blueprint
The base blueprints are labeled with this expanded string: 700,000 + 90,000 + 3,000 + 600 + 5 . Convert this to standard and word forms.
A. Write this code in Standard Form (be careful of empty spaces!):
B. Write this code in Word Form:
ASSIGNMENT #3
The Spy's Diary Riddle
An intercepted letter from Agent Omega reads: "My secret passcode has a 5 in the hundred-thousands place, a 2 in the thousands place, a 9 in the ones place, and all other digits are 0 ."
A. Write Agent Omega's passcode in Standard Form:
B. Write Agent Omega's passcode in Word Form:
HOMEWORK ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Parent/Guardian Sign-off:
Dino Weigh Showdown Exit Ticket Fossil Lab Station
Dino Weigh Showdown
Field Paleontology Unit // Comparing Large Digits
Lead Researcher:
Expedition Date:
Sector (Class Period):
Expedition Protocol: Place Value Analysis
Compare fossil weights below using the comparison symbols: < (less than), > (greater than), or = (equal to).
FOSSIL SITE 1
Herbivore Weight Check
Triceratops Fossil 45,820 lbs
Stegosaurus Fossil 45,280 lbs
Explain your comparison reasoning based on place value:
FOSSIL SITE 2
Brachiosaurus Comparison
Fossil Specimen A 128,450 lbs
Fossil Specimen B 128,405 lbs
Which place value determines which fossil is heavier? Explain how you know:
FIELD LOG: PALEONTOLOGY // 4.NBT.A.2
Verified by Supervisor:
Dino Weigh Showdown Exit Ticket B Fossil Lab Station B
Dino Weigh Showdown
Field Paleontology Unit // Comparing Large Digits
Lead Researcher:
Expedition Date:
Sector (Class Period):
Expedition Protocol: Place Value Analysis
Compare predator weights below using the comparison symbols: < (less than), > (greater than), or = (equal to).
FOSSIL SITE 3
Predator Weight Check
Spinosaurus Fossil 15,320 lbs
Tyrannosaurus Rex 15,302 lbs
Explain your comparison reasoning based on place value:
FOSSIL SITE 4
Deep Ocean Giants
Megalodon Jaw Fossil 340,590 lbs
Prehistoric Whale 340,590 lbs
Which place value determines which predator is heavier? Explain how you know:
FIELD LOG: PALEONTOLOGY // 4.NBT.A.2
Verified by Supervisor:
Dino Weigh Showdown Exit Ticket C Fossil Lab Station C
Dino Weigh Showdown
Field Paleontology Unit // Comparing Large Digits
Lead Researcher:
Expedition Date:
Sector (Class Period):
Expedition Protocol: Place Value Analysis
Compare ages and specimen weights below using the comparison symbols: < (less than), > (greater than), or = (equal to).
FOSSIL SITE 5
Fossil Carbon Dating
Fossil Specimen Delta 208,405 years
Fossil Specimen Gamma 208,450 years
Explain your comparison reasoning based on place value:
FOSSIL SITE 6
Fossil Rock Mass
Fossil Encased Rock A 67,890 oz
Fossil Encased Rock B 67,980 oz
Which place value determines which rock has more mass? Explain how you know:
FIELD LOG: PALEONTOLOGY // 4.NBT.A.2
Verified by Supervisor:
Dino Weigh Showdown Exit Ticket D Fossil Lab Station D
Dino Weigh Showdown
Field Paleontology Unit // Comparing Large Digits
Lead Researcher:
Expedition Date:
Sector (Class Period):
Expedition Protocol: Place Value Analysis
Compare wingspans and nest data below using the comparison symbols: < (less than), > (greater than), or = (equal to).
FOSSIL SITE 7
Pterosaur Wing Spans
Quetzalcoatlus Specimen 12,045 in
Pteranodon Specimen 12,405 in
Explain your comparison reasoning based on place value:
FOSSIL SITE 8
Dinosaur Egg Mass
Nest Egg Specimen A 105,300 oz
Nest Egg Specimen B 105,030 oz
Which place value determines which egg is heavier? Explain how you know:
FIELD LOG: PALEONTOLOGY // 4.NBT.A.2
Verified by Supervisor:
Dino Comparison Homework Official Field Task 1
Dino Comparison
Field Paleontology Unit // Expedition Homework
Lead Researcher:
Expedition Date:
Sector (Class Period):
ASSIGNMENT 1
Field Weight Inspections
Compare the following dinosaur fossil weights. Write < , > , or = in the circle to make each math statement true.
54,201 lbs
54,102 lbs
120,405 lbs
120,450 lbs
8,903 lbs
8,903 lbs
ASSIGNMENT 2
Ordering Specimen Files
A lab assistant left three specimen weight cards on the table. Write their weights in order from Least to Greatest on the line below.
Stegosaurus 48,320 lbs
Triceratops 48,230 lbs
Ankylosaurus 48,302 lbs
_____________________ < _____________________ < _____________________
ASSIGNMENT 3
Conceptual Analysis
Junior Assistant Tommy says: "602,999 has three 9s at the end, so it must be bigger than 603,240 which only has smaller digits."
Explain why Tommy is incorrect. Reference specific place value positions to support your proof:
FIELD ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Supervisor Initials:
Dino Comparison Homework B Official Field Task 2
Dino Comparison
Field Paleontology Unit // Expedition Homework B
Lead Researcher:
Expedition Date:
Sector (Class Period):
ASSIGNMENT 1
Prehistoric Height Inspections
Compare the following prehistoric heights and depths. Write < , > , or = in the circle to make each math statement true.
14,502 in
14,052 in
320,400 in
320,400 in
92,810 in
92,801 in
ASSIGNMENT 2
Excavation Site Depths
A surveyor measured three fossilized nest depths in the valley. Write their depths in order from Greatest to Least on the line below.
Nest Alpha 105,420 in
Nest Beta 105,240 in
Nest Gamma 105,402 in
_____________________ > _____________________ > _____________________
ASSIGNMENT 3
Conceptual Analysis
Researcher Maya writes: "We comparison-tested a specimen of 450,000 ounces and one of 45,000 ounces. The first specimen is heavier because it contains an extra place value."
Explain why Maya is correct. Reference specific place values and digits to justify your answer:
FIELD ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Supervisor Initials:
Dino Comparison Homework C Official Field Task 3
Dino Comparison
Field Paleontology Unit // Expedition Homework C
Lead Researcher:
Expedition Date:
Sector (Class Period):
ASSIGNMENT 1
Fossil Carbon Dating Tests
Compare the carbon-dating ages of the fossils below. Write < , > , or = in the circle to make each statement true.
405,300 years
405,030 years
129,880 years
129,880 years
604,010 years
640,010 years
ASSIGNMENT 2
Specimen Mass Logs
A geologist logged three stone samples in the laboratory. Write their weights in order from Least to Greatest on the line below.
Sample A 310,290 oz
Sample B 310,920 oz
Sample C 310,209 oz
_____________________ < _____________________ < _____________________
ASSIGNMENT 3
Missing Data Cipher
A water-damaged ledger shows a comparison statement with a missing digit in the tens place:
What digit(s) can go in the blank to make this statement true? Explain your reasoning:
FIELD ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Supervisor Initials:
Dino Comparison Homework D Official Field Task 4
Dino Comparison
Field Paleontology Unit // Expedition Homework D
Lead Researcher:
Expedition Date:
Sector (Class Period):
ASSIGNMENT 1
Fossil Wingspan & Eggs
Compare the following prehistoric dimensions and weights. Write < , > , or = in the circle to make each math statement true.
12,304 in
12,403 in
809,200 oz
809,020 oz
45,612 oz
45,612 oz
ASSIGNMENT 2
Prehistoric Footprint Tracks
A tracker discovered three fossilized footprints in the canyon bed. Write their sizes in order from Greatest to Least on the line below.
Track X 15,409 in
Track Y 15,049 in
Track Z 15,490 in
_____________________ > _____________________ > _____________________
ASSIGNMENT 3
Lead Researcher Challenge
Now it is your turn to construct an experiment! Create two different 6-digit numbers that have the same digits but in different positions.
Write your numbers as a comparison statement (using < or >) and explain your math reasoning:
FIELD ASSIGNMENT // CCSS.MATH.CONTENT.4.NBT.A.2
Supervisor Initials:
