About this worksheet
Twenty three-digit addition sentences written across the page, like 324 + 152, with a line for each sum. No column ever adds up to 10 or more.
The instruction asks children to add the hundreds, the tens and the ones, which is the place value way to do it in your head: 300 + 100, then 20 + 50, then 4 + 2. It makes a good bridge between mental math and the column method.
What students will practice
- Add three-digit numbers written across
- Add hundreds, tens and ones separately
- Work within 1000 without regrouping
Details
- Grade level
- Grade 2
- Subject
- Math · Addition
- Standard
- CCSS 2.NBT.B.7
- Pages
- 1
- Format
- PDF · US Letter and A4 included
- License
- Free for classroom use · Attribution appreciated
- Last updated
- October 13, 2026
