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

Name: ______________________

Date: ______________________

1
275 + 196 = ?
Warm-up
Answer:
2
447 + 301 = ?
Warm-up
Answer:
3
150 + 270 = ?
Warm-up
Answer:
4
583 − 149 = ?
On level
Answer:
5
535 − 310 = ?
On level
Answer:
6
745 − 337 = ?
On level
Answer:
7
606 + 894 = ?
Challenge
Answer:
8
620 + 854 = ?
Challenge
Answer:
9
657 + 503 = ?
Challenge
Answer:

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Worksheet code: eyJzIjoibnVtYmVyLWFkZC1zdWJ0cmFjdC0zZGlnaXQiLCJkIjpbMjAxNTc3NjYwOCwxMjMxMTQzNzM0LDIwMTI0MTQwOTIsMTEyNjY2ODc5NCw2MjI1OTgyMiwxMTc4MjI3Miw3Mzc4ODUwMDksMjAwMzA4MjY3OSwxMzUzMTM3Njg3XSwidiI6MX0.cecd31ab5613

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Answer key · Add and subtract 3-digit whole numbers

1.
471 — Add the hundreds, tens, and ones: 275 + 196 = 471.
2.
748 — Add the hundreds, tens, and ones: 447 + 301 = 748.
3.
420 — Add the hundreds, tens, and ones: 150 + 270 = 420.
4.
434 — Subtract 149 from 583 to get 434.
5.
225 — Subtract 310 from 535 to get 225.
6.
408 — Subtract 337 from 745 to get 408.
7.
1500 — Line up the digits and regroup as you add: 606 + 894 = 1500.
8.
1474 — Line up the digits and regroup as you add: 620 + 854 = 1474.
9.
1160 — Line up the digits and regroup as you add: 657 + 503 = 1160.