Rounding Decimals
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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.
Part 1 of 4
Warm-up video
Khan Academy · 4:22Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 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.
Part 3 of 4
Practice
10 questions
Place 0.45 on a number line. Is it closer to 0.4 or 0.5? Therefore, what is 0.45 rounded to the nearest tenth?
Consider the number 0.063. To which hundredth is it closest?
Part 4 of 4
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.”
Sample answer included in the free materials
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