Rounding Whole Rounding Whole Numbers to the Numbers to the Nearest 10, 100, and Nearest 10, 100, and 1,0001,000

Rounding Whole Rounding Whole Numbers to the Numbers to the Nearest 10, 100, and Nearest 10, 100, and 1,0001,000

Objective: I can round numbers to the nearest 10, 100, Objective: I can round numbers to the nearest 10, 100, and 1,000.and 1,000.

ReviewReviewReviewReview

Using a number line, round the following number Using a number line, round the following number to the nearest 10 and 100.to the nearest 10 and 100.

1. 773 rounded to the nearest 10 is ____________.1. 773 rounded to the nearest 10 is ____________.

2. 773 rounded to the nearest 100 is ____________.2. 773 rounded to the nearest 100 is ____________.

770 780775773

700 800750 773

Step 1: Look at the place value you are being Step 1: Look at the place value you are being asked to round. Underline that number.asked to round. Underline that number.

Example: Round to the nearest hundred. Example: Round to the nearest hundred. 66 4 9 4 9

Step 2: Circle the digit to the right of the place Step 2: Circle the digit to the right of the place value you are bring asked to round to.value you are bring asked to round to.

Example: Example: 66 4 9 4 9

How do I round How do I round whole numbers?whole numbers?How do I round How do I round whole numbers?whole numbers?

Step 3: Now look at the digit that is circled. If the Step 3: Now look at the digit that is circled. If the digit is digit is 0, 1, 2, 3, or 4 0, 1, 2, 3, or 4 then leave the underlined then leave the underlined digit the digit the samesame. If the circled number is . If the circled number is 5, 6, 7, 8, 5, 6, 7, 8, or 9 or 9 then round the underlined digit then round the underlined digit upup..

Example: Example: 66 4 9 Since the circled digit is a 4, we 4 9 Since the circled digit is a 4, we would leave the underlined digit (6) the same.would leave the underlined digit (6) the same.

Step 4: Now turn all the digits to the right of the Step 4: Now turn all the digits to the right of the underlined digit into zeros.underlined digit into zeros.

Example: 600Example: 600

HINT TO REMEMBER: *5 and above give it a shove, 4 HINT TO REMEMBER: *5 and above give it a shove, 4 and below let it go*and below let it go*

How do I round How do I round whole numbers?whole numbers?How do I round How do I round whole numbers?whole numbers?

Using the same steps, round the following Using the same steps, round the following number to the nearest 1,000:number to the nearest 1,000:

22, 8 7 7, 8 7 7

The answer is 3, 000The answer is 3, 000

Try rounding to the Try rounding to the nearest 1,000nearest 1,000

Try rounding to the Try rounding to the nearest 1,000nearest 1,000

MOVE TO FIND THE ANSWER!

Directions: Round each number to the nearest Directions: Round each number to the nearest ten, hundred and thousand.ten, hundred and thousand.

TENTEN HUNDRED HUNDRED THOUSANDTHOUSAND

2, 535 ____________ ____________ ______________2, 535 ____________ ____________ ______________

4, 292 ____________ ____________ _______________4, 292 ____________ ____________ _______________

Guided PracticeGuided PracticeGuided PracticeGuided Practice

Directions: Round the following numbers to the nearest Directions: Round the following numbers to the nearest thousand. Do your work on the left side of the thousand. Do your work on the left side of the interactive notebook.interactive notebook.

1.1. 5, 7695, 769

2.2. 2, 3402, 340

3.3. 275, 923275, 923

4.4. 27, 94527, 945

Bonus: Round these numbers to the nearest ten Bonus: Round these numbers to the nearest ten thousand.thousand.

5.5. 125, 019125, 019

6.6. 174, 999174, 999

7.7. 668, 231668, 231

Student PracticeStudent PracticeStudent PracticeStudent Practice