Ages 9–10🧮 Mathematics12 verified questions on this shelf

Rounding Large Numbers

Round any whole number up to 1,000,000 to the nearest 10, 100, 1,000, 10,000, or 100,000 using place-value understanding

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Question 1 of 3

To estimate the sum of 387,412 + 214,560, you round each number to the nearest ten‑thousand before adding. What is the best estimate?

Question 2 of 3

What is 950,500 rounded to the nearest 100,000?

Question 3 of 3

Lena collected 642,317 marbles and her friend Maya collected 158,492 marbles. To quickly estimate the total number of marbles, round each amount to the nearest ten‑thousand and then add. What is the best estimate?

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Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.