Addition and Subtraction Worksheets Within 1,000

Teaching notes for parents and teachers

How to teach it

Break an addend into hundreds, tens, and ones. For subtraction across a zero, show each exchange and record the renamed number.

Example to work through together

Use the model below as you explain the example. Have your student point to the quantities as you discuss them.

Ask your student

How can we rename this number without changing its value?

If your student needs help

If a regrouped digit is overlooked, rebuild the starting number and match each change to the written work.

Choosing and using the worksheet

These twelve horizontal questions allow room for working. The set can include zero and one-, two-, or three-digit numbers, and a quantity can reach 1,000. “Within 1,000” is an upper limit; this is not a set in which every number has exactly three digits. Use addition to check subtraction and compare the result with a rough estimate.

Make a practice set

Select the worksheet, answer key, or both. When both are selected, the answer key prints after the questions. Keep it separate if you want your student to work independently.

After your student finishes

Look at the working as well as the answer. If exchanges are unclear, model one calculation with hundreds, tens, and ones. When calculation is secure, use the word-problem set to connect those same operations to a situation.

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  Calculation practice

  2 Digit Subtraction With Regrouping

  Exchange one ten for ten ones and subtract within 100.

  15 problems · Answer key included
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  Calculation practice

  2 Digit Addition With Regrouping

  Exchange ten ones for a ten and keep the total within 100.

  15 problems · Answer key included
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  Word problems

  Addition and Subtraction Word Problems Within 1,000

  Explain a joining or taking-away situation and check the calculation with place value.

  6 problems · Answer key included

More about addition · Grade 3 worksheets

Grade 3 selected skill connection: 3.NBT.A.2 (addition and subtraction practice). See the Common Core standards for this grade. This worksheet does not cover every requirement in the standard.