Standard #: MAFS.3.NBT.1.1 (Archived Standard)

A printable hundreds chart featuring a 10x10 table numbered 1 to 100. (found on Illuminations website under "Trading for Quarters")

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

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

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

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

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.

By using prior skip-counting knowledge, place value, and number lines, students will learn how to round to the nearest ten.

In this Model Eliciting Activity, MEA, students will create a procedure for ranking pool construction companies based on the number of years in business, customer satisfaction, and available pool dimensions. In a “twist,” students will be given information about discounts available by each company. Students will evaluate their procedure for ranking and change it if necessary.

Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. MEAs resemble engineering problems and encourage students to create solutions in the form of mathematical and scientific models. Students work in teams to apply their knowledge of science and mathematics to solve an open-ended problem, while considering constraints and tradeoffs. Students integrate their ELA skills into MEAs as they are asked to clearly document their thought process. MEAs follow a problem-based, student-centered approach to learning, where students are encouraged to grapple with the problem while the teacher acts as a facilitator. To learn more about MEA’s visit: https://www.cpalms.org/cpalms/mea.aspx

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.

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. 

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.

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.

The principal needs help planning the school lunch schedule! Students will plan a lunch schedule to accommodate all of the students in the school. However, there can only be 100 students in the cafeteria at a time and only 20 students can sit at a table. Students will figure out how to arrange the lunch schedule so that every class eats together and so that certain grade levels are not together at the same time.

Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. MEAs resemble engineering problems and encourage students to create solutions in the form of mathematical and scientific models. Students work in teams to apply their knowledge of science and mathematics to solve an open-ended problem while considering constraints and tradeoffs. Students integrate their ELA skills into MEAs as they are asked to clearly document their thought processes. MEAs follow a problem-based, student-centered approach to learning, where students are encouraged to grapple with the problem while the teacher acts as a facilitator. To learn more about MEAs visit: https://www.cpalms.org/cpalms/mea.aspx

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

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" 

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

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

The purpose of this task is to answer multiple questions regarding rounding. There still may be students who laboriously list every number; the teacher should encourage a more thoughtful approach.

Students can practice answering mathematics questions on a variety of topics. With an account, students can save their work and send it to their teacher when complete.

This webpage contains instructions for several activities and games designed to develop students' understanding of place value while reinforcing addition and subtraction skills. Downloadable materials and suggestions for variations are included along with links to online games. This is the second of two pages of similar activities. The first, Place Value Activities, is cataloged separately.

In this Khan Academy video tutorial, see examples of how to round up to four-digit numbers to the nearest ten and hundred.

In this Khan Academy video tutorial, use a number line to round three-digit numbers to the nearest hundred.

In this Khan Academy video, use a number line to round two-digit numbers to the nearest ten.

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" 

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

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

A printable hundreds chart featuring a 10x10 table numbered 1 to 100. (found on Illuminations website under "Trading for Quarters")

The purpose of this task is to answer multiple questions regarding rounding. There still may be students who laboriously list every number; the teacher should encourage a more thoughtful approach.

Students can practice answering mathematics questions on a variety of topics. With an account, students can save their work and send it to their teacher when complete.

In this Khan Academy video tutorial, see examples of how to round up to four-digit numbers to the nearest ten and hundred.

In this Khan Academy video tutorial, use a number line to round three-digit numbers to the nearest hundred.

In this Khan Academy video, use a number line to round two-digit numbers to the nearest ten.

A printable hundreds chart featuring a 10x10 table numbered 1 to 100. (found on Illuminations website under "Trading for Quarters")

The purpose of this task is to answer multiple questions regarding rounding. There still may be students who laboriously list every number; the teacher should encourage a more thoughtful approach.

In this Khan Academy video tutorial, see examples of how to round up to four-digit numbers to the nearest ten and hundred.

In this Khan Academy video tutorial, use a number line to round three-digit numbers to the nearest hundred.

In this Khan Academy video, use a number line to round two-digit numbers to the nearest ten.