Chapter 2: Place Value & Number Sense Mathematics Chapter 2: Place Value & Number Sense 2.1-2.2 Evens & Odds; Place Value w/ manipulatives Created by: Mrs. Russell

Objectives To identify odd and even numbers and use a hundred chart to skip count. To find the value of a digit by using its place-value.

Vocabulary even - a whole number that has a 0, 2, 4, 6, 8 in the ones place. 368 4,572

Vocabulary odd – a whole number that has a 1, 3, 5, 7, or 9 in the ones place. 83 971

Vocabulary 4 1 digits – any one of the ten symbols used to write numbers. 5 7 8 2 6 3 9

There are three ways to write numbers. Lesson There are three ways to write numbers. standard form expanded form word form 642 600 + 40 + 20 = six hundred and forty two 1 2 3

343 Standard Form Standard form means that you write the number. What number would you write for this picture? 343

222 Standard Form Standard form means that you write the number. What number would you write for this picture? 222

455 Standard Form Standard form means that you write the number. What number would you write for this picture? 455

Expanded Form Expanded form means that you write the value of each digit in a number. FOR EXAMPLE 300 60 5 365

Expanded Form 600 50 2 652

Now let’s work on this in the book! Good work! Now let’s work on this in the book!