Numbers climb closer to 1,000 here. The fill-in-the-blank section runs through 438 + 275, 962 − 487, the borrow-from-zero problem 710 − 364, and 845 − 568, plus rounding warm-ups for 387 + 214 and 919 − 503. Part B is a matching exercise where 467 + 356, 853 − 478, and 701 − 265 each need to find their correct sum or difference.
Switching between computed answers and estimates gives third graders a built-in way to spot regrouping slips.
Style:
Three-Digit Addition and Subtraction
Part A: Fill in the Blank
Write the missing word or number on each line.
1. 438 + 275 = 713.
2. 962 - 487 = 475.
3. 156 + 678 = 834.
4. 710 - 364 = 346.
5. 583 + 249 = 832.
6. 845 - 568 = 277.
7. About how much is 387 + 214 when you round each to the nearest hundred? 600.
8. 731 - 456 = 275.
9. About how much is 919 - 503 when you round each to the nearest hundred? 400.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
467 + 356
→ 823
753
853 - 478
→ 375
436
219 + 534
→ 753
375
701 - 265
→ 436
823
Three-Digit Addition and Subtraction
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) 438 + 275 = 713.
2) 962 - 487 = 475.
3) 156 + 678 = 834.
4) 710 - 364 = 346.
5) 583 + 249 = 832.
6) 845 - 568 = 277.
7) About how much is 387 + 214 when you round each to the nearest hundred? 600.
8) 731 - 456 = 275.
9) About how much is 919 - 503 when you round each to the nearest hundred? 400.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
467 + 356
→ 823
753
853 - 478
→ 375
436
219 + 534
→ 753
375
701 - 265
→ 436
823
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