Addition - Grade 3 Math Worksheet 2 - Free Printable

Download this free printable Addition worksheet for Grade 3 Math. Perfect for practice, homework, and classroom use.

Grade 3 Math practice

This printable Addition worksheet is part of the free WizKidsHub Grade 3 Math collection. Print it at home or in the classroom for extra practice.

What this worksheet teaches

• Estimate a sum by rounding to the nearest ten or hundred, then check the exact answer against it.
• Solve one- and two-step word problems and write the answer with its unit.
• Use the fact that addition can be done in any order to check a sum a second way.
• Find the missing number in sums such as 34 + __ = 71.

How to use this worksheet

For word problems, ask them to say what the answer will be about - rupees, books, minutes - before they touch the numbers. Most lost marks here come from solving correctly and labelling the wrong thing.

Sample questions from this worksheet

1. 444 + 111 =
2. 510 + 490 =

Frequently asked questions

Is mental addition or the column method expected?

Both. Small sums are meant to be mental, while three-digit sums with regrouping are meant to be written in columns.

Why does the worksheet ask for estimates?

Because estimating is the self-checking habit Grade 3 syllabuses introduce here - it catches answers that are wildly out before the answer key does.

My child knows the facts but still gets sums wrong. Why?

Almost always column alignment or the carry. Squared paper, or one digit per box, fixes more Grade 3 addition errors than extra fact drill.