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4th grade (Eureka Math/EngageNY)

Unit 1: Lesson 1

Topic A: Place value of multi-digit whole numbers
Math
4th grade (Eureka Math/EngageNY)
Module 1: Place value, rounding, and algorithms for addition and subtraction
Topic A: Place value of multi-digit whole numbers
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Whole numbers in written form review

CCSS.Math:
4.NBT.A.2
Google Classroom
Review writing whole numbers in written form, and try some practice problems.

Written form

Written form is a way to write numbers using only words.

Example

Let's write start color #11accd, 7, end color #11accd, comma, start color #7854ab, 2, end color #7854ab, start color #1fab54, 2, end color #1fab54, start color #ca337c, 9, end color #ca337c in expanded form.
ThousandsHundredsTensOnes
start color #11accd, 7, end color #11accdstart color #7854ab, 2, end color #7854abstart color #1fab54, 2, end color #1fab54start color #ca337c, 9, end color #ca337c
7229, equals, start color #11accd, 7, end color #11accd, start text, space, t, h, o, u, s, a, n, d, s, end text plus, start color #7854ab, 2, end color #7854ab, start text, space, h, u, n, d, r, e, d, s, end text, plus start color #1fab54, 2, end color #1fab54, start text, space, t, e, n, s, end text, plus, start color #ca337c, 9, end color #ca337c, start text, space, o, n, e, s, end text
empty space, equals, start color #11accd, 7000, end color #11accd, plus, start color #7854ab, 200, end color #7854ab, plus, start color #1fab54, 20, end color #1fab54, plus, start color #ca337c, 9, end color #ca337c
7229 in written form is start text, start color #11accd, s, e, v, e, n, space, t, h, o, u, s, a, n, d, end color #11accd, comma, start color #7854ab, space, t, w, o, space, h, u, n, d, r, e, d, end color #7854ab, start color #1fab54, space, t, w, e, n, t, y, negative, end color #1fab54, start color #ca337c, n, i, n, e, end color #ca337c, end text
Want to learn more about written form? Check out this video.

Practice

Problem 1
What is "fifty thousand, six hundred thirty-one" in standard form?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text

Want to try more problems like this? Check out this exercise.

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