2nd Grade
Math
About 10 minutes

Jump on a Number Line

Start at the first number. Jump the tens, then jump the ones. Write where you land.

How much on the page?

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This is sheet #40424601.

How to do it

Start at the first number.
Jump the tens. Write where you land.
Jump the ones. That is the answer.

Teaching tip

Count by tens out loud for the big jump, like 38, 48, 58. This sheet is aligned with Common Core 2.NBT.B.5.

Jump on a Number Line worksheet for 2nd grade (adding and subtracting within 100), free printable — Printable preview

About this worksheet

Add a two-digit number by jumping the tens, then the ones, on an open number line.

What kids practice

Adding and subtracting two-digit numbers, like 47 + 25 and 63 - 28. The ones are added or subtracted first, then the tens. When the ones add up to 10 or more, 10 of them become 1 ten (carrying). When there aren't enough ones to take away, 1 ten becomes 10 ones (regrouping). Every problem in this topic uses two-digit numbers on both lines.

Watch for

Writing 12 in the ones place instead of carrying the 1 ten.
Subtracting the smaller digit from the bigger one in the ones (63 - 28 becomes 45).
Forgetting to take 1 away from the tens after regrouping.
Adding when the sign says subtract on the mixed page.

It's free to print, with Fewer, Standard or More on the page and an answer key. See the full adding and subtracting within 100 guide for 2nd grade.