This easy-level worksheet has students fix sentence errors, fill in blanks, and answer true or false questions to practice three-digit addition & subtraction skills.
It includes 10 questions across 3 sections for focused practice.
Style:
Three-Digit Addition and Subtraction
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
716 - 389 = 337.
Rewrite: 716 - 389 = 327 because 11 - 8 = 3 in the tens (after borrowing), not 3 tens remaining as shown.
2. Fix the sentence:
254 + 378 = 622.
Rewrite: 254 + 378 = 632 because 5 + 7 = 12 in the tens place, carry 1 to hundreds, so 2 + 3 + 1 = 6 and the tens digit is 3, not 2.
3. Fix the sentence:
900 - 457 = 553.
Rewrite: 900 - 457 = 443 because you must borrow across zeros: 10 - 7 = 3, 9 - 5 = 4, 8 - 4 = 4.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 463 + 289 = 752.
2. 841 - 567 = 274.
3. 178 + 354 = 532.
4. 605 - 278 = 327.
Part C: True or False?
Read each statement. Circle True or False.
1. 356 + 244 = 600.
True False
2. When you subtract 832 - 519, you do not need to borrow at all.
True False
3. The sum of 199 and 301 is 400.
True False
Three-Digit Addition and Subtraction
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
716 - 389 = 337.
Rewrite: 716 - 389 = 327 because 11 - 8 = 3 in the tens (after borrowing), not 3 tens remaining as shown.
2) Fix the sentence:
254 + 378 = 622.
Rewrite: 254 + 378 = 632 because 5 + 7 = 12 in the tens place, carry 1 to hundreds, so 2 + 3 + 1 = 6 and the tens digit is 3, not 2.
3) Fix the sentence:
900 - 457 = 553.
Rewrite: 900 - 457 = 443 because you must borrow across zeros: 10 - 7 = 3, 9 - 5 = 4, 8 - 4 = 4.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) 463 + 289 = 752.
2) 841 - 567 = 274.
3) 178 + 354 = 532.
4) 605 - 278 = 327.
★ Part C: True or False?
Read each statement. Circle True or False.
1) 356 + 244 = 600.
True
False
2) When you subtract 832 - 519, you do not need to borrow at all.
True
False
3) The sum of 199 and 301 is 400.
True
False
Ready to Practice?
Complete each section carefully.
10 Questions
15-20 minutes
Auto-graded
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