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Grade 3

Addition Within 1000 (No Regrouping) Worksheets

Three-digit addition place by place, without carrying.

Free printable PDF · answer key included · new problems every time

Print worksheet (PDF)

Preview · page 1

  1. 1.190 + 163 =
  2. 2.130 + 826 =
  3. 3.190 + 293 =
  4. 4.291 + 365 =
  5. 5.310 + 470 =
  6. 6.310 + 189 =
  7. 7.713 + 202 =
Show answers

1) 353 · 2) 956 · 3) 483 · 4) 656 · 5) 780 · 6) 499 · 7) 915

How to explain it to your child

Work place by place: hundreds, tens, ones — no carrying needed.

  1. Split both numbers into hundreds, tens and ones. — 320 + 145
  2. Add the hundreds. — 300 + 100 = 400
  3. Add the tens, then the ones. — 20 + 40 = 60; 0 + 5 = 5
  4. Put it all together. — 400 + 60 + 5 = 465

Example: 320 + 145: 300+100=400; 20+40=60; 0+5=5; makes 465.

Every sheet has a QR code: if your child gets stuck, they scan it and get this explanation step by step — without giving the answer away.

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Questions parents ask

Are these addition within 1000 (no regrouping) worksheets really free?

Yes. Your first three downloads need no sign-up; after that a free account lets you print as many as you like. No subscription. Every PDF has an answer key at the back.

Can I get new problems once my child has done this sheet?

Yes. “New problems” makes a fresh sheet on the same topic every time — different numbers, same level.

How do I know which topic my child should practise?

Take the free 5-minute check: your child solves a few problems on the phone, and you get a printable workbook built for exactly their gaps.

Addition Within 1000 (No Regrouping) Worksheets, Grade 3 – Free PDF with Answers