Lesson 4-- Rounding to the Nearest 100 Using Models

Introduction

Hello Mathematicians! Today, we will think about place value when rounding to the nearest hundred.

Video

Interactive

Directions:

Use the virtual place value chart and make the following numbers.
Then decide which hundred these numbers would round to.
Enter the missing hundred into the interactive below to check your work.

209 196 312 580

In Your Math Notebook:

Let’s get out our math journals and work through the following application problem. Make sure you read the problem carefully, draw a picture to match your thinking and write and solve an equation. Remember sometimes we don’t need an exact answer. Look for key works like “about how many” to help you know when an estimate is expected to be given. Make sure you use your knowledge of rounding to the nearest ten!

Read, Draw, Write. DONE!

R (Read the problem carefully.)

The second-, third-, and fourth-grade students at an elementary school are going on a field trip. The table shows the number of students enrolled at each grade level.

Grade Level	Number of Students Enrolled
2nd	183
3rd	212
4th	95

To the nearest hundred, about how many students are going on a field trip?

D (Draw a picture.)

W (Write and solve an equation.)

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Georgia Department of Education, Math