# Worksheet: Column Subtraction of Three-Digit Numbers: Partial Differences

In this worksheet, we will practice using place value blocks and tables to subtract three-digit numbers by subtracting the hundreds, tens, and ones separately before finding the sum of these partial differences.

Q1:

Use the partial differences method to solve .

Q2:

Use the partial differences method to solve .

Q3:

Use the partial differences method to solve .

Q4:

Jacob is subtracting using partial differences. Find the missing numbers in his calculation: .

• A4, 846
• B50, 800
• C5, 855
• D5, 845

Q5:

Use the partial differences method to complete the following: .

• A100, 460
• B10, 370
• C0, 360
• D1, 361

Q6:

Benjamin is subtracting using partial differences. Find the missing numbers in his calculation: .

• A20, 260
• B2, 162
• C2, 242
• D20, 180

Q7:

Amelia is subtracting using partial differences.

Find the missing numbers in her calculation: .

• A11, 79
• B1, 89
• C10, 80
• D1, 91

Q8:

Use the partial difference method to complete the following:

• A60, 100
• B6, 154
• C70, 90
• D7, 153

Q9:

Using the partial difference method to complete the following:

• A30, 375
• B20, 385
• C20, 425
• D2, 403

Q10:

Using the partial difference method to complete the following:

• A9, 639
• B8, 638
• C7, 637
• D80, 710