Rounding Numbers to the Nearest Hundred

Slides:

Advertisements

Similar presentations

Advertisements

Mental Math Converting quarters and halves. Instructions First you need a piece of paper and a pencil. Please write your name, date and class at the top.

MENTAL MATH General Review = 60 – 10 = =

To the tens, hundreds and thousands

Lesson 17.  Addends- The numbers that are being added together.  Reasonable- Does it make sense?

Rounding and PEMDAS Practice Problems

Objective: TLW round numbers to the nearest 10 or 100. GLE# 12

Math Rounding By Grade 4.

Estimating Sums to the Nearest 10 and 100

1 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt It’s.

Math Review Show each amount using the fewest number of coins. 98¢ pennies nickels dimes quarters 1.

1. Take out a blank piece of paper. 2. Label your paper 1-30 down the left-hand side. 3. You have 15s to complete each question. 4. At the end of this.

Mental Math Rounding Numbers to the Nearest Hundred and Thousand.

$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.

& GUIDED QUESTIONS MATH VOCABULARY DAY 5. Go to your Table of Contents page.

Warm-Up What is rounded to the nearest hundredth? Write the question and your answer on your warm-up. Don’t forget to date your warm-up.

MENTAL MATH Subtracting Tens and Compensate Strategy: When subtracting numbers ending in 7, 8, or 9, round that number to the nearest tens and then add.

Estimating Fractions.

Rounding up – and down! Mental Mathematics Starters Activity 3b.

Mental Learning Objective I know my number bonds up to 20.

10’s 100’s and 1,000 th ’s place!. Rounding makes numbers that are easier to work with in your head. Rounded numbers are only approximate. An exact answer.

Event 4: Mental Math 7 th /8 th Grade READY! 5 PENCILS DOWN.

When estimating, 1.) You should be able to do the computation in your head 2.) Your answer should be close to the exact answer 1-1 Estimating sums, differences.

Event 4: Mental Math 5 th & 6 th grade Math Meet 2015.

$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.

Answer: 50% of 46 is 23. Find Percent of a Number Mentally

1. Take out a blank piece of paper. 2. Label your paper 1-30 down the left-hand side. 3. You have 18s to complete each question. 4. At the end of this.

MENTAL MATH Rounding Addition and Subtraction Strategy: Estimate the answer by rounding each number to the nearest hundred Examples:

Math Meeting Write today’s date. ________________________ 4 years = __________ months 7 weeks = ___________ days How many weeks are in one year? ____________________.

Grade 6 How to multiply decimals Lesson 3 unit 3 MMS pp

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

Estimation Whole numbers, Sums, Differences, Products, and Quotients.

Rounding Decimals. Use rounding When the question asks you to estimate. When the question asks “about how many”…? When an exact answer isn’t possible.

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.

Event 4: Mental Math 5th/6th grade Math Meet ‘11.

“Don’t make me read, make me understand “

Lesson 9 Rounding to any digit.

Math Flash Rounding By Monica Yuskaitis.

ROUNDING 54 ______ 26 ______ 39 ______ 13 ______ 99 ______ 07 ______

36 LO: to round to the nearest 10

Use rounding When the question asks you to estimate.

Round to the nearest 100.

Rounding Numbers.

Rounding Review Tens and Hundreds

Rounding Review Tens and Hundreds

How do we use rounding in real-world situations?

Math Flash Rounding By Monica Yuskaitis.

Math Flash Rounding By Monica Yuskaitis.

Math Flash Rounding By Monica Yuskaitis.

Rounding Numbers Name: ___________________________________

L l l l l l l l l l l 42,783.

Rounding Review Tens and Hundreds

Math Flash Rounding By Monica Yuskaitis.

Rounding off (Outcome).

Math Flash Rounding.

Unit 4 Lesson 10 Estimate Products Use Rounding to Estimate Products.

Review Questions Please record the answers on your paper.

Math Flash Rounding.

Math Flash Rounding Whole Numbers

Math Flash Rounding.

Presentation transcript:

Rounding Numbers to the Nearest Hundred Mental Math Rounding Numbers to the Nearest Hundred

Instructions First you need a piece of paper and a pencil. Please write your name, date and class at the top. Mental math isn’t about your hand its about your head. Its fine if you find a few of them difficult! If you can’t get an exact answer make an estimate.

A little laugh before we start…

Specific Instructions You will see a list of 10 numbers. Round each number to the nearest hundred. You will have 2 minutes.

Sept.7, 2011 203 816 899 673 410 551 549 777 037 999

Sept.7, 2011 - Answers 203 = 200 816 = 800 899 = 900 673 = 700 410 = 400 551 = 600 549 = 500 777 = 800 037 = 0 999 = 1000