Grades 2–3
Open Number Line: Jump by Tens and Ones
Six problems within 100 with an empty number line. Kids jump by tens, then ones, and write where they land.
Math worksheet · Addition and subtraction practice
Two-Digit Addition with Base-Ten Blocks
Six problems drawn as tens rods and ones cubes. Kids put the tens together, then the ones, and write the sum.
- Grade level
- Grades 1–2
- Time
- About 20 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Addition and subtraction facts, Regrouping, Mental math strategies, Checking with the inverse
What kids do
“Count all the tens. Count all the ones. Write the sum.”
Teacher tip
When there are 10 or more ones, stop and trade them for a ten. That trade is regrouping.
How to use it
- Use it as a timed sheet once a week and have kids chart their own score.
- Let partners check each other with a calculator after they finish.
- Do the first problem together under a document camera, then let kids finish on their own.
Watch for
Subtracting the smaller digit from the bigger one in each column (54 − 27 = 33). Ask kids to say “Can I take 7 from 4?” before they write.
Talk about it
- Which strategy did you use: counting on, making ten or a doubles fact?
- Which problem was the hardest? What made it hard?
Take it further
Play a dice game: roll two dice, add or subtract, and race to a hundred.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More addition and subtraction practice worksheets
Grades 2–3
Addition Square Puzzles
Six little number squares. Every row and column adds up to the number at its end. Find the missing numbers.
3rd grade
Estimate Sums and Differences
Ten problems to round, estimate and then solve. Kids check that the exact answer is close to the estimate.
3rd grade
Four-Digit Addition and Subtraction
Fifteen stacked problems with thousands, hundreds, tens and ones, most with regrouping.
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