Third Grade Subtraction Worksheets - Free Printable

I need to complete this subtraction worksheet. Let me work through each row systematically, calculating the missing values by subtracting 1, 10, 100, and 1000 from the given numbers.

Let me start by understanding the pattern:
- Column "-1": Subtract 1 from the NUMBER
- Column "-10": Subtract 10 from the previous number (which is in the -1 column)
- Column "-100": Subtract 100 from the previous number (which is in the -10 column)
- Column "-1000": Subtract 1000 from the previous number (which is in the -100 column)

Wait, let me check the first row to understand the pattern better:
- NUMBER: 3728
- -1: 3727 (3728 - 1 = 3727) ✓
- -10: 3717 (3727 - 10 = 3717) ✓
- -100: 3617 (3717 - 100 = 3617) ✓
- -1000: 2617 (3617 - 1000 = 2617) ✓

So the pattern is: each column subtracts from the value in the previous column.

Now let me fill in all the missing values:

Row 2: NUMBER = 4592
- -1: 4592 - 1 = 4591 ✓
- -10: 4591 - 10 = 4581 ✓
- -100: 4581 - 100 = 4481
- -1000: 4481 - 1000 = 3481 ✓

Row 3: NUMBER = 7923
- -1: 7923 - 1 = 7922
- -10: 7922 - 10 = 7912
- -100: 7812 ✓
- -1000: 7812 - 1000 = 6812

Wait, let me verify row 3. If -100 = 7812, then working backwards:
- -10 should be: 7812 + 100 = 7912
- -1 should be: 7912 + 10 = 7922
- NUMBER should be: 7922 + 1 = 7923 ✓

So:
- -1: 7922
- -10: 7912
- -1000: 7812 - 1000 = 6812

Row 4: NUMBER = 5607
- -1: 5607 - 1 = 5606
- -10: 5596 ✓
- -100: 5496 ✓
- -1000: 5496 - 1000 = 4496

Let me verify: if -10 = 5596, then -1 = 5596 + 10 = 5606, and NUMBER = 5606 + 1 = 5607 ✓

Row 5: NUMBER = 2124
- -1: 2123 ✓
- -10: 2123 - 10 = 2113
- -100: 2113 - 100 = 2013
- -1000: 2013 - 1000 = 1013

Row 6: NUMBER = 8203
- -1: 8203 - 1 = 8202
- -10: 8202 - 10 = 8192
- -100: 8192 - 100 = 8092
- -1000: 8092 - 1000 = 7092

Row 7: NUMBER = 7096
- -1: 7096 - 1 = 7095
- -10: 7095 - 10 = 7085
- -100: 7085 - 100 = 6985
- -1000: 6985 - 1000 = 5985

Row 8: NUMBER = 6123
- -1: 6123 - 1 = 6122
- -10: 6122 - 10 = 6112
- -100: 6112 - 100 = 6012
- -1000: 6012 - 1000 = 5012

Row 9: NUMBER = 3000
- -1: 3000 - 1 = 2999
- -10: 2999 - 10 = 2989
- -100: 2989 - 100 = 2889
- -1000: 2889 - 1000 = 1889

Row 10: We have -1 = 2741
Working backwards:
- NUMBER = 2741 + 1 = 2742
- -10 = 2741 - 10 = 2731
- -100 = 2731 - 100 = 2631
- -1000 = 2631 - 1000 = 1631

Row 11: We have -100 = 8265
Working backwards:
- -10 = 8265 + 100 = 8365
- -1 = 8365 + 10 = 8375
- NUMBER = 8375 + 1 = 8376
- -1000 = 8265 - 1000 = 7265

Row 12: We have -1 = 5303 and -10 = 5293
Checking: 5303 - 10 = 5293 ✓
- NUMBER = 5303 + 1 = 5304
- -100 = 5293 - 100 = 5193
- -1000 = 5193 - 1000 = 4193

Row 13: We have -1000 = 3000
Working backwards:
- -100 = 3000 + 1000 = 4000
- -10 = 4000 + 100 = 4100
- -1 = 4100 + 10 = 4110
- NUMBER = 4110 + 1 = 4111

Row 14: We have -100 = 4989 and -1000 = 3989
Checking: 4989 - 1000 = 3989 ✓
Working backwards:
- -10 = 4989 + 100 = 5089
- -1 = 5089 + 10 = 5099
- NUMBER = 5099 + 1 = 5100

Row 15: We have -10 = 3071
Working backwards:
- -1 = 3071 + 10 = 3081
- NUMBER = 3081 + 1 = 3082
- -100 = 3071 - 100 = 2971
- -1000 = 2971 - 1000 = 1971

Row 16: We have -1000 = 7109
Working backwards:
- -100 = 7109 + 1000 = 8109
- -10 = 8109 + 100 = 8209
- -1 = 8209 + 10 = 8219
- NUMBER = 8219 + 1 = 8220

Let me double-check my calculations by verifying a few rows:

Row 2 verification:
- NUMBER: 4592
- -1: 4591 ✓
- -10: 4581 ✓
- -100: 4481 (calculated)
- -1000: 3481 ✓
Check: 4481 - 1000 = 3481 ✓

Row 11 verification:
- NUMBER: 8376 (calculated)
- -1: 8375 (calculated)
- -10: 8365 (calculated)
- -100: 8265 ✓
- -1000: 7265 (calculated)
Check: 8376 - 1 = 8375 ✓, 8375 - 10 = 8365 ✓, 8365 - 100 = 8265 ✓, 8265 - 1000 = 7265 ✓

All calculations look correct!

Final Answer:
Here are all the missing values to complete the worksheet:

Row 2: -100 = 4481
Row 3: -1 = 7922, -10 = 7912, -1000 = 6812
Row 4: -1 = 5606, -1000 = 4496
Row 5: -10 = 2113, -100 = 2013, -1000 = 1013
Row 6: -1 = 8202, -10 = 8192, -100 = 8092, -1000 = 7092
Row 7: -1 = 7095, -10 = 7085, -100 = 6985, -1000 = 5985
Row 8: -1 = 6122, -10 = 6112, -100 = 6012, -1000 = 5012
Row 9: -1 = 2999, -10 = 2989, -100 = 2889, -1000 = 1889
Row 10: NUMBER = 2742, -10 = 2731, -100 = 2631, -1000 = 1631
Row 11: NUMBER = 8376, -1 = 8375, -10 = 8365, -1000 = 7265
Row 12: NUMBER = 5304, -100 = 5193, -1000 = 4193
Row 13: NUMBER = 4111, -1 = 4110, -10 = 4100, -100 = 4000
Row 14: NUMBER = 5100, -1 = 5099, -10 = 5089
Row 15: NUMBER = 3082, -1 = 3081, -100 = 2971, -1000 = 1971
Row 16: NUMBER = 8220, -1 = 8219, -10 = 8209, -100 = 8109