Rounding Numbers to the 100 Thousands Place

Slides:

Advertisements

Similar presentations

Unit 2 Lesson 8 Part 2: Rounding to the Nearest Ten (3 Digits) Copyright © 2009 Kelly Mott.

Advertisements

Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand Copyright © 2009 Kelly Mott.

Unit 2 Lesson 8 Part 3: Rounding to the Nearest Hundred (4 Digits)

© 2007 M. Tallman. Find your number. Look right next door. 34 Step 1: Circle the digit in the place that you must round to. Step 2: Draw an arrow to the.

Place Value: Determining Place

© 2007 M. Tallman. Find your number. Look right next door. 23 Step 1: Circle the digit in the place that you must round to. Step 2: Draw an arrow to the.

To the tens, hundreds and thousands

ESTIMATION Estimating Guess how many? There are 20 pens.

Everyday Math Grade 4 – Lesson 2.3 Place Value in Whole Numbers

Rounding Review Copyright © 2009 Kelly Mott.

Rounding Which number is closer?.

2-4 Round 3,531 to the nearest hundred.

How do you ESTIMATE numbers? Use the skill of ROUNDING.

ESTIMATION AND ROUNDING

Rounding Numbers to the 100 Thousands Place

Decimal Place Value: Decimal points are read as the word “and”

How to Round Whole Numbers

Rounding Whole Numbers and Money © 2007 M. Tallman.

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

Unit 2 Lesson 7 Part 1: Rounding to the Nearest Ten

Rounding Rap Find the place value and underline that digit. Move to the right and circle, get it!? 0-4, Underlined digit stays the same. 5-9 Add one is.

Lesson 2-6 Example Round 673,088 to the nearest hundred thousand. Step 1Underline the digit in the hundred thousands place. What digit did you underline?

BELL RINGER 1. What is the value of the 6 in 306,899? What is 100 less than 3, What is six hours after 2 p.m.?

Review of Go Math 1.1 and 1.2 Copyright © 2013 Kelly Mott.

Estimating Sums to the Nearest 10 and 100

$100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Place value circle model Place value up to tens Place value hundred - thousands Place value –

Place Value & Rounding Review. Place Value For the number 2, : The 2 is in the ___ place. The 6 is in the ___ place. The 4 is in the ___ place.

Place Value and Estimation

ESTIMATION ROUNDING NUMBERS. DEFINITION To calculate approximately (the amount, extent, magnitude, position, or value of something).

Write the Answers… Is 86 closer to 80 or 90? Is 538 closer to 500 or 600?

$100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Estimate with pictures Round to nearest hundred Round to nearest thousand Add / subtract & estimate.

ROUNDING and ESTIMATING NUMBERS

Rounding of Numbers Up to Hundred Millions

Round to Nearest 10 and 100 Copyright © 2013 Kelly Mott.

To the nearest…place value!

Rounding Rounding helps us figure out about how many things or about how much money is needed.

Place Value Rounding. Rounding  Step 1 –Underline the number in the place value in which you are rounding to...  Example: Round to the thousands –35,

Unit 2 Lesson 8 Part 5: Rounding Review Lesson (3,4, and 5 Digits) Copyright © 2009 Kelly Mott.

Rounding Numbers. Let’s Review the Rules

Rounding numbers means to write a number using a certain place value and zeros.

Rounding Objective:The point is to try to change the amount of a number. Meaning: expressing a number to the nearest millions,thousand and hundred & so.

$100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Multiply by 1 digit numbers Multiply & estimate results Multiply by 2 digit numbers Multiply.

Estimating Products Copyright © 2012 Kelly Mott. 2 Digits x 1 Digit Copyright © 2012 Kelly Mott.

Every Thing About Rounding. Rounding Rap  If the number next door is 5 or more the rounding digit increases by one. If the number next door is 4 or less.

Rounding Which number is closer?. Rounding A dress costs $73. Is 73 closer to $70 or closer to $80? Of course it is closer to $70. This is an example.

LO: to round to the nearest 10 Which ten is the following number nearest to?

Place Value to the 100 Thousands Copyright © 2013 Kelly Mott.

Unit 2 Lesson 9 Part 2: Estimating Sums to the Nearest 100 Copyright © 2010 Kelly Mott.

Estimating Sums to the Nearest 10 and 100 Copyright © 2013 Kelly Mott.

Math symbols Rounding 2 digit numbers to the nearest tens Rounding 3 digit numbers to the nearest tens Rounding 3 digit numbers to the nearest hundreds.

Rounding Rap Find the place value and underline that digit. Move to the right and circle, get it!? 0-4, Underlined digit stays the same. 5-9 Add one is.

1.7 Rounding Whole Numbers

36 LO: to round to the nearest 10

Comparing and Rounding Decimals

Objective - To round whole numbers.

4 3 9 H T U What is the most significant figure in

Round to the nearest 1000.

Round to the nearest 100.

Rounding Numbers.

Rounding Review Tens and Hundreds

Rounding on the Number Line

Rounding Review Tens and Hundreds

Rounding Numbers Name: ___________________________________

Rounding Review Tens and Hundreds

Comparing and Ordering Decimals

AROUND THE WORLD +ADDITION

Presentation transcript:

Rounding Numbers to the 100 Thousands Place Copyright © 2013 Kelly Mott

FOCUS QUESTION: What does it mean to round a number? Copyright © 2013 Kelly Mott

When you round a number, you are replacing it with another number that tells about how much or how many. You’re saying what the number is closest to. Copyright © 2013 Kelly Mott

Here are some examples. Copyright © 2013 Kelly Mott

Round to the Nearest Ten What is 13 rounded to the nearest ten? Find 13 on the number line. Put a dot. Is 13 closer to 10 or 20? __________________ Answer: 13 rounded to the nearest ten is ____ 10 11 12 13 14 15 16 17 18 19 20 Copyright © 2013 Kelly Mott

Round to the Nearest Hundred What is 180 rounded to the nearest hundred? Find 180 on the number line. Put a dot. Is 180 closer to 100 or 200? _______________ Answer: 180 rounded to the nearest hundred is _____________________ 100 110 120 130 140 150 160 170 180 190 200 Copyright © 2013Kelly Mott

Round to the Nearest Thousand What is 1,300 rounded to the nearest thousand? Find 1,300 on the number line. Put a dot. Is 1,300 closer to 1,000 or 2,000? ___________ Answer: 1,300 rounded to the nearest thousand is _____________________ 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 Copyright © 2013 Kelly Mott

Does this make sense? Copyright © 2013 Kelly Mott

Rounding to the Nearest 10 Copyright © 2013 Kelly Mott

15 Rounding Practice 1: Round to the nearest ten: RULES FOR ROUNDING Round to the nearest ten: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 15 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

33 Rounding Practice 2: Round to the nearest ten: RULES FOR ROUNDING Round to the nearest ten: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 33 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

228 Rounding Practice 3: Round to the nearest ten: RULES FOR ROUNDING Round to the nearest ten: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 228 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

3,614 Rounding Practice 4: Round to the nearest ten: RULES FOR ROUNDING Round to the nearest ten: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 3,614 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

32,576 Rounding Practice 5: Round to the nearest ten: RULES FOR ROUNDING Round to the nearest ten: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 32,576 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

Does this make sense so far? Copyright © 2013 Kelly Mott

Rounding to the Nearest 100 Copyright © 2013 Kelly Mott

215 Rounding Practice 1: Round to the nearest hundred: RULES FOR ROUNDING Round to the nearest hundred: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 215 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

563 Rounding Practice 2: Round to the nearest hundred: RULES FOR ROUNDING Round to the nearest hundred: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 563 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

3,481 Rounding Practice 3: Round to the nearest hundred: RULES FOR ROUNDING Round to the nearest hundred: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 3,481 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

13,854 Rounding Practice 4: Round to the nearest hundred: RULES FOR ROUNDING Round to the nearest hundred: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 13,854 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

51,318 Rounding Practice 5: Round to the nearest hundred: RULES FOR ROUNDING Round to the nearest hundred: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 51,318 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

Does this make sense so far? Copyright © 2013 Kelly Mott

Rounding to the Nearest 1,000 Copyright © 2013 Kelly Mott

2,415 Rounding Practice 1: Round to the nearest thousand: RULES FOR ROUNDING Round to the nearest thousand: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 2,415 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

1,233 Rounding Practice 2: Round to the nearest thousand: RULES FOR ROUNDING Round to the nearest thousand: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 1,233 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

13,581 Rounding Practice 3: Round to the nearest thousand: RULES FOR ROUNDING Round to the nearest thousand: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 13,581 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

39,150 Rounding Practice 4: Round to the nearest thousand: RULES FOR ROUNDING Round to the nearest thousand: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 39,150 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

103,718 Rounding Practice 5: Round to the nearest thousand: RULES FOR ROUNDING Round to the nearest thousand: Underline the number in the place value you will round. 2. Circle the number to the right of the underlined number. 103,718 Use the rounding pyramid: Underlined number rounds up one Add the zeros Underlined number stays the same Add the zeros 9 4 8 3 2 7 1 6 5 4. Any digit to the left of the underlined digit stays the same. Copyright © 2013 Kelly Mott

Does this make sense so far? Copyright © 2013 Kelly Mott

Rounding to the Nearest 10,000 Copyright © 2013 Kelly Mott

Round to the Nearest Ten Thousand 18,200 11,400 143,466 106,640 Copyright © 2013 Kelly Mott

Round to the Nearest Ten Thousand 52,109 16,419 701,466 167,640 Copyright © 2013 Kelly Mott

Does this make sense so far? Copyright © 2013 Kelly Mott

Rounding to the Nearest 100,000 Copyright © 2013 Kelly Mott

Round to the Nearest 100 Thousand 352,200 161,400 5,143,466 8,706,640 Copyright © 2013 Kelly Mott

Round to the Nearest 100 Thousand 337,488 169,859 7,450,466 2,247,640 Copyright © 2013 Kelly Mott

Does this make sense so far? Copyright © 2013 Kelly Mott

Copyright © 2013 Kelly Mott