Standard #: MA.2.NSO.1.1


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Read and write numbers from 0 to 1,000 using standard form, expanded form and word form.


Examples


Example: The number four hundred thirteen written in standard form is 413 and in expanded form is 400+10+3.

Example: The number seven hundred nine written in standard form is 709 and in expanded form is 700+9.



General Information

Subject Area: Mathematics (B.E.S.T.)
Grade: 2
Strand: Number Sense and Operations
Standard: Understand the place value of three-digit numbers.
Date Adopted or Revised: 08/20
Status: State Board Approved

Benchmark Instructional Guide

Connecting Benchmarks/Horizontal Alignment

 

Terms from the K-12 Glossary

  • Expression

 

Vertical Alignment

Previous Benchmarks

 

Next Benchmarks

 

 

Purpose and Instructional Strategies

The purpose of this benchmark is to extend the understanding of place value from grade 1 to include reading and writing numbers up to 1,000 in various forms. The value of a digit is impacted by its position in a number (MTR.5.1). 
  • Instruction includes the understanding that in expanded form each digit of a multi-digit number is assigned a value based on its place. 
  • Instruction includes experiences with numbers written in different forms. 
  • Instruction includes the use of both proportional and non-proportional models (i.e., base ten models or place value disks) (MTR.5.1).

 

Common Misconceptions or Errors

  • Students may identify digits instead of naming their value. 
    • For example, students may say the value of the 4 in the number 142 is just 4, as in 4 ones. 
  • Students may misinterpret the value of the ones, tens or hundreds digit as the number of ones, tens or hundreds. 
    • For example, students may say that there are 40 tens in the number 142. 
  • Students may have difficulty expressing numbers with zero tens.
  • Students may incorrectly record the standard form based on word form.

 

Strategies to Support Tiered Instruction

  • Instruction includes the use of base-ten blocks and a place value chart. The teacher asks students to build the number using base-ten blocks on a place value chart. Then, asks them to write the number (standard form). If they write 25, teacher asks about how many of each place value and rewrites the number while discussing the value of the hundreds, tens and ones. 
  • Instruction includes using base-ten blocks and a place value chart to represent a 3-digit number (e.g., 365 can be represented by 3 flats, 6 rods, 5 units). 
    • For example, teacher asks students to label the place value using the expanded form under the rods on the chart. (300 under the flats, 60 under the rods, 5 under the units). The teacher has students write out the word form using the expanded form to assist in writing it out. Finally, teacher asks students what the number would be in all forms if we removed 60?
base-ten blocks and a place value chart

 

Instructional Tasks

Instructional Task 1 (MTR.2.1) 

Provide a series of three-digit modeled numbers using a base ten model like the one shown below. 
three-digit modeled numbers using a base ten model
Ask students to record two other ways to represent the quantity. Discuss similarities and differences between the various representations.

 

Instructional Items

Instructional Item 1 

Which of the following shows 613 in expanded form? 
a. 600+3 
b. 600 + 13 
c. 600+10+3 
d. 500+90+33

 

 *The strategies, tasks and items included in the B1G-M are examples and should not be considered comprehensive.




Related Courses

Course Number1111 Course Title222
5012040: Grade Two Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 - 2024, 2024 and beyond (current))
7712030: Access Mathematics Grade 2 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012005: Foundational Skills in Mathematics K-2 (Specifically in versions: 2019 - 2022, 2022 - 2024, 2024 and beyond (current))


Related Access Points

Access Point Number Access Point Title
MA.2.NSO.1.AP.1 Read and generate numbers from 0 to 100 using standard form and expanded form.


Related Resources

Formative Assessments

Name Description
Writing the Expanded Form of a Number

Students write the expanded form of a number from hearing the word name of a number.

Writing Numerals From Expanded Form

Students are shown three numbers in expanded form and asked to write the corresponding numeral.

Counting by Ones Within 1000

Students are asked to count by ones, starting at various numbers, within 1000.

Reading Numerals to 1000

Students are presented with six numerals and are asked to read the numbers.

Writing Numerals From Number Names

Students write numerals that correspond to spoken number names.

Lesson Plans

Name Description
What's Your Value?

Students will decompose three-digit numbers (given in standard form) into hundreds, tens, and ones using base ten blocks on a place value chart. Students will then use their models to help them write the numbers in expanded form.

Reading and Writing Numbers and Number Names

Students will demonstrate their understanding of how to read and write numbers to 1000 using base-ten blocks and word form. Students will compose and decompose three-digit numbers in multiple ways using hundreds, tens, and ones.

Place Value Representations

This lesson encompasses several activities for learning the place value of three-digit numbers. Students match cards with other students' various representations of the same number. Pairs of students use playing cards and determine the digits' place values. Students find a partner to query about place value after a musical interlude.

Shipping Hundreds, Tens, and Ones

In this lesson students use a toy factory scenario to better understand three-digit numbers.

Different Ways to Represent 3-Digit Numbers

In this lesson, students will demonstrate their understanding of how to read and write numbers to 1000 using base-ten blocks and expanded form. Students will also explore decomposing 3-digit numbers in multiple ways.

Twisty Cup 3-Digit Place Value

In this lesson, students will make their own twisty cups, manipulate them to display 3-digit numbers, and record the displayed standard form, word form, and expanded form.

Bundles and Combos

This lesson will help students learn that a 3-digit number can be composed of different combinations of hundreds, tens and ones.

How Many Inches, Feet, and Yards?

Students will measure the length of given objects using various measuring tools. The students will record their measurements using different units including inches, feet, and yards to the nearest whole unit. Students will also estimate and measure the lengths of objects, then compare their estimations to their measurements to find the difference.

 

Number Makers

In this lesson, students will be able to represent a 3-digit number with base-ten blocks, write in expanded form, and read the number.

Place Value - 3 Digit Numbers

Students will decompose numbers by place value and represent them using concrete and pictorial models.

Sweet Number Places

This lesson is a continuation of the Sweet Values CPALMS lesson Resource 46493 and is a different way of teaching place value, with a story that you can continue to use to also teach addition and subtraction to your second graders. In this lesson students will learn to numerically represent numbers in different ways and understand that the three digits in a three-digit number represent amounts of hundreds, tens, and ones.

Sweet Values

This lesson is a different way of teaching place value, with a story that you can continue to use to also teach addition and subtraction to your second graders. In this lesson students will learn to represent numbers in different ways and understand that the three digits in a three-digit number represent amounts of hundreds, tens, and ones.

Original Student Tutorials

Name Description
Can You Teach A Dolphin Math? - Part 2

Learn read and write numbers in expanded form with the dolphins in this interactive tutorial.

This is Part 2 in a two-part series. Click HERE to open Part 1.

Can You Teach A Dolphin Math? - Part 1

Learn to read and write numbers to 1000 using base-ten numerals with the dolphins!

This interactive tutorial is part 1 of a two-part series. Click HERE to open Part 2.

Student Resources

Original Student Tutorials

Name Description
Can You Teach A Dolphin Math? - Part 2:

Learn read and write numbers in expanded form with the dolphins in this interactive tutorial.

This is Part 2 in a two-part series. Click HERE to open Part 1.

Can You Teach A Dolphin Math? - Part 1:

Learn to read and write numbers to 1000 using base-ten numerals with the dolphins!

This interactive tutorial is part 1 of a two-part series. Click HERE to open Part 2.



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