Georgia 5.NR.1

5.NR.1 is a Georgia mathematics standard. These are the expectations under it.

• 5.NR.1.1

  Explain that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents...

• 5.NR.1.2

  Explain patterns in the placement of digits when multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10, up to 10³.

01

What Students Need to Do

Students use digit positions to read, write, compare, and round numbers, including decimals. They apply those skills to questions involving measurements, money, and numerical data.

02

What Mastery Looks Like

Students explain the value of any digit in a number and represent the number in standard, word, and expanded forms. They compare and round decimals accurately, then use the result to answer a question about money, measurement, or data.

03

Common Misconceptions

Students may think a decimal with more digits is always greater, so 0.425 must exceed 0.6. They may ignore placeholder zeros or compare digits without checking their places. Some think adding a trailing zero changes a decimal's value.

04

How to Assess It

Give this exit ticket: “A package weighs 2.408 kilograms. Write the weight in expanded form, compare it with 2.48 kilograms, and round it to the nearest hundredth.”

1. 01

   Use place-value mats and base-ten blocks to build decimals, then have partners name each digit’s value and write the expanded form.

2. 02

   Ask, “Which is greater, 3.47 or 3.407?” Students write a claim and defend it using place values.

3. 03

   Play Decimal Showdown by drawing digit cards, building numbers to the thousandths place, and earning points for the greater number.

4. 04

   Compare race times recorded to thousandths of a second, then order the athletes and round each time to the nearest hundredth.

• 4.NR.1.3

  Use place value reasoning to represent, compare, and order multi-digit numbers, using >, =, and < symbols to record the results of comparisons.

• 4.NR.1.4

  Use place value understanding to round multi-digit whole numbers.

• 5.NR.4.3

  Use place value understanding to round decimal numbers to the hundredths place.

• K.NR.3

  Use place value understanding to compose and decompose numbers from 11–19.