Add 3-Digit Numbers (No Regrouping) Worksheets for 2nd Grade
Add two 3-digit numbers in columns when no column makes 10 or more. 15 free printable worksheets, each with an answer key.
Save to PinterestFree Add 3-Digit Numbers (No Regrouping) Worksheets
Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
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Worksheet #15
Add 3-Digit Numbers (No Regrouping): what children learn
With no regrouping, each column adds to less than 10, so the digits can be added one column at a time from the ones to the hundreds.
Add 3-Digit Numbers (No Regrouping): worked example
243 + 135 = 378
3 + 5 = 8 ones, 4 + 3 = 7 tens, and 2 + 1 = 3 hundreds. So 243 + 135 = 378.
Add 3-Digit Numbers (No Regrouping): a common mistake to watch for
Kids sometimes misalign the columns when the numbers have different digits.
Add 3-Digit Numbers (No Regrouping): how to help at home or in class
Give your child three colored pencils and write each place in its own color: ones in one, tens in another, hundreds in a third. The colors keep columns apart even when numbers are close in size. Then check by estimating: round 412 and 356 to 400 and 400, so the answer should be near 800. When estimates and answers agree on most of a page, they are ready to meet problems where a column makes ten or more.
What is on these Add 3-Digit Numbers (No Regrouping) worksheets
This set has 15 different worksheets for 2nd grade, with 15 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Add the numbers in columns and write the sum.”
Example questions like the ones on these worksheets, with their answers:
- 212 + 762 = 974974
- 467 + 122 = 589589
- 153 + 720 = 873873
- 524 + 372 = 896896
- 201 + 278 = 479479
- 462 + 334 = 796796
- 110 + 117 = 227227
- 635 + 302 = 937937
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers