# MA.3.NSO.1.4

Round whole numbers from 0 to 1,000 to the nearest 10 or 100.

### Examples

Example: The number 775 is rounded to 780 when rounded to the nearest 10.

Example: The number 745 is rounded to 700 when rounded to the nearest 100.

General Information
Subject Area: Mathematics (B.E.S.T.)
Strand: Number Sense and Operations
Date Adopted or Revised: 08/20
Status: State Board Approved

## Related Courses

This benchmark is part of these courses.
5012050: Grade Three Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712040: Access Mathematics Grade 3 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012055: Grade 3 Accelerated Mathematics (Specifically in versions: 2019 - 2022, 2022 and beyond (current))
5012015: Foundational Skills in Mathematics 3-5 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

## Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
MA.3.NSO.1.AP.4: Round whole numbers from 0 to 1,000 to the nearest 100 with visual support.

## Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

## Formative Assessments

Rounding to the Nearest 10:

Students round one- to four-digit numbers to the nearest 10.

Type: Formative Assessment

The Smallest and Largest Numbers Possible:

Student are asked to find the smallest and largest possible numbers that will round to given values.

Type: Formative Assessment

Rounding to the Nearest Hundred:

Students round two-, three-, and four-digit numbers to the nearest hundred.

Type: Formative Assessment

Mystery Number Rounding Problem:

The student determines the value of a number which when rounded to the nearest 10 and to the nearest 100 is 300.

Type: Formative Assessment

## Lesson Plans

What Decade is It? - Rounding Whole Numbers to the Nearest 10:

In this lesson, students will tap prior knowledge of place value and dimes to round numbers to the nearest 10. Students will use number lines with tick marks in increments of 10 to visualize the closer decade and then progress to using the place value of numerals to round to the tens place. Pairs of students will participate in a rounding activity using a number line.

Type: Lesson Plan

Rounding Round and Round:

In this lesson, students will gain fluency with rounding numbers to the nearest 10s and 100s place. The lesson has number lines to help students understand rounding.

Type: Lesson Plan

Round the Number Line:

The focus of this lesson is to find the halfway point and use it to round numbers.  The lesson rounds numbers 0 to 100 to the nearest ten and 0 to 1000 to the nearest ten and hundred.

Type: Lesson Plan

How Did the Baby Chick Cross the Road to Rounding?:

In this lesson, students will engage in tellling jokes and doing outside activities to discover rounding concepts. Students will use a vertical number line to round numbers from 0 to 1,000.

Type: Lesson Plan

How Many Seeds in a Pumpkin?:

In this hands-on math exploration, students will use knowledge of estimation and multiplication to develop strategies for estimating how many seeds are in a medium-sized pumpkin.

Type: Lesson Plan

Rounding Relay:

This lesson uses a relay game  to provide students with practice for their rounding skills.

Type: Lesson Plan

## Original Student Tutorials

Rounding Whole Numbers Part 2: To the Nearest Hundred:

Help Barkley learn to round numbers to the nearest hundred and bury delicious bones in this dog-themed, interactive tutorial.

Click HERE to open "Rounding Whole Numbers Part 1: To the Nearest Ten"

Type: Original Student Tutorial

Rounding Whole Numbers Part 1: To the Nearest Ten:

Help Barkley learn how to round numbers to the nearest ten with this interactive tutorial.

Type: Original Student Tutorial

Rounding Party:

Learn how to round two-, three-, and four-digit numbers to the nearest 10 or 100 in this party-themed, interactive tutorial.

Type: Original Student Tutorial

## MFAS Formative Assessments

Mystery Number Rounding Problem:

The student determines the value of a number which when rounded to the nearest 10 and to the nearest 100 is 300.

Rounding to the Nearest 10:

Students round one- to four-digit numbers to the nearest 10.

Rounding to the Nearest Hundred:

Students round two-, three-, and four-digit numbers to the nearest hundred.

The Smallest and Largest Numbers Possible:

Student are asked to find the smallest and largest possible numbers that will round to given values.

## Original Student Tutorials Mathematics - Grades K-5

Rounding Party:

Learn how to round two-, three-, and four-digit numbers to the nearest 10 or 100 in this party-themed, interactive tutorial.

Rounding Whole Numbers Part 1: To the Nearest Ten:

Help Barkley learn how to round numbers to the nearest ten with this interactive tutorial.

Rounding Whole Numbers Part 2: To the Nearest Hundred:

Help Barkley learn to round numbers to the nearest hundred and bury delicious bones in this dog-themed, interactive tutorial.

Click HERE to open "Rounding Whole Numbers Part 1: To the Nearest Ten"

## Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

## Original Student Tutorials

Rounding Whole Numbers Part 2: To the Nearest Hundred:

Help Barkley learn to round numbers to the nearest hundred and bury delicious bones in this dog-themed, interactive tutorial.

Click HERE to open "Rounding Whole Numbers Part 1: To the Nearest Ten"

Type: Original Student Tutorial

Rounding Whole Numbers Part 1: To the Nearest Ten:

Help Barkley learn how to round numbers to the nearest ten with this interactive tutorial.

Type: Original Student Tutorial

Rounding Party:

Learn how to round two-, three-, and four-digit numbers to the nearest 10 or 100 in this party-themed, interactive tutorial.

Type: Original Student Tutorial

## Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.