Digit Detective Review Worksheet
Grade 4 Math Place Value Review
Digit Detective Review
Name:
Date: Score:
1
Identify Digits: Place & Value
Standard 4.NBT.1
Place: Position of digit (e.g. Ten Thousands). | Value: Worth of digit (e.g. 50,000). | 10× greater with each left shift
| Number | Digit | Place Name | Value of Digit |
|---|
| 4,728 | 7 | | |
| | | |
|
| 63,105 | 6 |
|
|
| 294,310 | 9 |
|
|
| 81,592 | 5 |
|
|
B. Place Value Pattern: In the number 55,200, how many times greater is the 5 in the ten-thousands place than the 5 in the thousands place?
Answer: It is
times greater because
2
Build & Decompose Numbers
Standard 4.NBT.2
A. Base-Ten Group Model
Thousands 3 Cubes (3 × 1,000)
Hundreds 4 Flats (4 × 100)
Tens 2 Rods (2 × 10)
Ones 7 Units (7 × 1)
Standard Form:
Expanded Form:
B. Write in Standard Form
1. 50,000 + 4,000 + 300 + 80 + 2 =
2. 700,000 + 20,000 + 600 + 9 =
3. (6 × 10,000) + (3 × 1,000) + (5 × 10) =
C. Flexible Decomposition
Decompose 4,500:
•
hundreds
• 4 thousands +
tens
Rename Units:
14 tens + 6 ones =
25 hundreds =
Digit Detective Place Value Mastery • Page 1 of 2 Turn over for Part 2: Comparing & Rounding →
Part 2
Comparing & Rounding Workshop
Student Name:
3
Compare Numbers
Use < , > , or =
48,291
48,921
306,450
306,405
99,899
100,001
540,219
542,019
70,000 + 500
70,500
80 Thousands
800,000
B. Order from Least to Greatest: 62,408 • 62,840 • 64,208 • 62,048
<
<
<
C.
Detective Reasoning: Maya claims that 9,820 is greater than 12,100 because 9 is greater than 1 or 2. Is Maya correct? Explain her place value mistake.
4
Round Numbers
Standard 4.NBT.3
A. Round 3,460 to the nearest thousand
3,000 3,500 (Mid) 4,000 3,460
3,460 rounds to:
B. Round 67,820 to the nearest ten-thousand
60,000 65,000 (Mid) 70,000 67,820
67,820 rounds to:
C. Multi-Digit Rounding Grid
| Number | Nearest 10 | Nearest 100 | Nearest 1,000 |
|---|
| 4,738 | | | |
| | | |
|
|
| 52,465 |
|
|
|
D.
Real-World Attendance Challenge:
An arena reported an attendance of 36,000 fans when rounded to the nearest thousand.
Least possible actual attendance:
Greatest possible actual attendance:
Digit Detective Place Value Mastery • Page 2 of 2 Detective Mission Completed ✓
