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Add and subtract 3-digit whole numbers · Grade 3 · B2.1

Name: ______________________

Date: ______________________

1
395 + 293 = ?
Warm-up
Answer:
2
131 + 178 = ?
Warm-up
Answer:
3
374 + 139 = ?
Warm-up
Answer:
4
637 − 146 = ?
On level
Answer:
5
526 − 370 = ?
On level
Answer:
6
824 − 378 = ?
On level
Answer:
7
496 + 740 = ?
Challenge
Answer:
8
743 + 659 = ?
Challenge
Answer:
9
649 + 885 = ?
Challenge
Answer:

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Worksheet code: eyJzIjoibnVtYmVyLWFkZC1zdWJ0cmFjdC0zZGlnaXQiLCJkIjpbMTkyNTExMTk3MywxMzY3MTI2OTMzLDI4Mjg1MjE5OCw4MzE5NjU1NCw0NTMzNzQyMzgsMTM3Mzg5ODkwNywxNjgxMTU4NzQ4LDk1OTQ5NjIxNywyMDkyNjYwODAyXSwidiI6MX0.4b5b7c8faef0

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Answer key · Add and subtract 3-digit whole numbers

1.
688 — Add the hundreds, tens, and ones: 395 + 293 = 688.
2.
309 — Add the hundreds, tens, and ones: 131 + 178 = 309.
3.
513 — Add the hundreds, tens, and ones: 374 + 139 = 513.
4.
491 — Subtract 146 from 637 to get 491.
5.
156 — Subtract 370 from 526 to get 156.
6.
446 — Subtract 378 from 824 to get 446.
7.
1236 — Line up the digits and regroup as you add: 496 + 740 = 1236.
8.
1402 — Line up the digits and regroup as you add: 743 + 659 = 1402.
9.
1534 — Line up the digits and regroup as you add: 649 + 885 = 1534.