This sheet keeps the focus on regrouping but pushes into harder zero territory. In Part A, third graders fix problems like 716 − 389 = 337 and the classic 900 − 457 = 553, talking through how to borrow across two zeros. Part B mixes carries and borrows with 463 + 289, 841 − 567, and 605 − 278. Part C closes with true-or-false items about whether 832 − 519 needs any borrowing and whether 199 + 301 really makes 400.
Practicing both carrying and borrow-across-zero side by side keeps either skill from getting rusty.
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
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