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Grade 2 · Math · Measurement

2nd Grade Number Line Lengths worksheets

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Number Line Lengths

Grade 2 Math Worksheet - Challenge Me

NameDate

Solve each word problem. Use the number line.

  1. A board must be 16 inches long. Ana has a board 8 inches long. She needs more inches.

  2. A ribbon is 11 inches long. Ben cuts off 8 inches. The ribbon is now inches long.

    Use the picture in question 1.

  3. A pencil is 16 cm long and a crayon is 7 cm long. The pencil is cm longer than the crayon.

    Use the picture in question 1.

  4. A string is 5 cm long. Mia adds a string that is 7 cm long. The two strings are cm long together.

    Use the picture in question 1.

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2nd Grade Number Line Lengths worksheet 1 – printable PDF
Download PDF: 123456

About this worksheet

A number line is a ruler in disguise: the same equal steps, and the same idea that every step is one unit of length. That makes it a good tool for adding and subtracting lengths, because a child can start at one length and jump forward to add or back to subtract. This worksheet gives four short stories about lengths, each with a printed number line under it and a sentence with a blank for the answer.

Ask your child to find the first length on the number line, decide whether the story adds, takes away or compares, and then jump or count along the line to the answer. Draw dots or small arrows on the line if it helps, and read the finished sentence out loud to check that it makes sense.

What your child will learn

  • Use a number line to add and subtract lengths
  • Decide whether to jump forward or back
  • Write a length in a sentence with its unit

Common Core standard: 2.MD.B.6

Worked example

A ribbon is 13 inches long and 5 inches are cut off. Start at 13 on the number line and jump back 5 to reach 8. The ribbon is 8 inches long.

Common mistake

Counting the starting number as the first jump, which makes the answer one too big or too small.

Helpful hint

Start at the first number, then count the jumps, not the numbers you land on.

Questions parents ask

What is the most common mistake with number line lengths?

Counting the starting number as the first jump, which makes the answer one too big or too small.

How can I help my child with number line lengths?

Start at the first number, then count the jumps, not the numbers you land on.

Are these 2nd grade math worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

Similar: Estimate Lengths · Compare Length Differences

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