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:
527 + 346 = 863.
Rewrite: 527 + 346 = 873 because 2 + 4 = 6 in the tens place, but carrying 1 from the ones (7 + 6 = 13) makes it 7, not 6.
2. Fix the sentence:
682 - 345 = 347.
Rewrite: 682 - 345 = 337 because 8 - 4 = 4 in the tens place, but borrowing 1 for the ones (12 - 5 = 7) makes it 3, not 4.
3. Fix the sentence:
438 + 295 = 623.
Rewrite: 438 + 295 = 733 because 8 + 5 = 13, carry 1, then 3 + 9 + 1 = 13, carry 1, then 4 + 2 + 1 = 7.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 361 + 429 = 790.
2. 574 - 238 = 336.
3. 285 + 147 = 432.
4. 803 - 456 = 347.
Part C: True or False?
Read each statement. Circle True or False.
1. When subtracting 500 - 263, you need to borrow from the hundreds place.
True False
2. 194 + 306 = 500.
True False
3. The difference between 750 and 425 is 335.
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:
527 + 346 = 863.
Rewrite: 527 + 346 = 873 because 2 + 4 = 6 in the tens place, but carrying 1 from the ones (7 + 6 = 13) makes it 7, not 6.
2) Fix the sentence:
682 - 345 = 347.
Rewrite: 682 - 345 = 337 because 8 - 4 = 4 in the tens place, but borrowing 1 for the ones (12 - 5 = 7) makes it 3, not 4.
3) Fix the sentence:
438 + 295 = 623.
Rewrite: 438 + 295 = 733 because 8 + 5 = 13, carry 1, then 3 + 9 + 1 = 13, carry 1, then 4 + 2 + 1 = 7.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) 361 + 429 = 790.
2) 574 - 238 = 336.
3) 285 + 147 = 432.
4) 803 - 456 = 347.
★ Part C: True or False?
Read each statement. Circle True or False.
1) When subtracting 500 - 263, you need to borrow from the hundreds place.
True
False
2) 194 + 306 = 500.
True
False
3) The difference between 750 and 425 is 335.
True
False
Ready to Practice?
Complete each section carefully.
10 Questions
15-20 minutes
Auto-graded
Retry anytime
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