Rounding Decimals

Rounding Decimals

Grade 10th Grade · Math · 45 min

What's Included

Learning Objective

5.NBT.A.4 — Round decimals to the nearest hundredth, tenth, or whole number … and use a number line to explain how the number was rounded.

Warm-Up Video

Khan Academy · 4:22

Rounding decimals on the number line

Guided Notes

3 key concepts

  • 1

    When rounding decimals using a number line, you can visually identify which tenth, hundredth, or whole number a decimal is closest to.

  • 2

    To round 0.136 to the nearest hundredth, determine if it is closer to 0.13 or 0.14 on the number line; in this case, it rounds to 0.14.

  • 3

    When rounding to the nearest whole number, such as rounding 44.197, consider whether the decimal is closer to 44 or 45 on the number line.

Practice Questions

10 questions · Multiple choice & Short answer

Exit Ticket

Quick comprehension check

On a number line, the number 0.654 is between which two hundredths? Round 0.654 to the nearest tenth. Explain your answer.

Complete Lesson Package

Get all 3 ready-to-use resources:

Teacher Guide
Student Doc
Slides