Upload
basil-bennett
View
240
Download
0
Embed Size (px)
Citation preview
Rounding Whole Numbers Through
Millions
By Mr. Bales
Objective» You will be able to round whole
numbers through the millions to the nearest 10, 100, 1,000, 10,000, or 100,000.
» Standard 4NS1.3 - Round whole numbers through the millions to the nearest ten, hundred, thousand, ten thousand, or hundred thousand.
Problem» Each year immigrants from around
the world come to the United States. In 2003, California schools welcomed 175,090 immigrant students.
» What is 175,090 rounded to the nearest thousand?
Let’s Hear a Song About Rounding!!
By Mr. Bales
Let's Watch Mr. Parsons!!
How To Round» Let’s look at this number 175,090.» First, underline the place value that you
want to round.» Then, look at the digit to the right. If the
digit is 4 or less, the digit in the rounding place stays the same.
» If the digit to the right is 5 or more. The digit in the rounding place increases by one.
» Last, change all the digits to the right of the rounding place to zero.
Bales BucksGame Time!!
» Round to the nearest hundred
» 71,105» 654,354» 678,947» Round to the nearest
ten thousand» 1,256,876» 23,786,983
» Round to the nearest hundred thousand
» 234,654,899» 3,853,216» Round the nearest
million» 34,652,985» 976,634,321
Assignment
» Page 38 - #’s 9 – 20» Get them all correct No Math
Homework