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Published byMarissa Reyes
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Rounding Decimal NumbersSometimes close enough is good enough!
Molly has $16 in her pocketShe buys: 3 $1.89 each 3 $2.19 each 3 Large French $ $1.79 each Does she have enough money?
About how much will it cost to fill up?Gas costs $1.79 per gallon I’m running on empty and I have a 20 gallon tank on my truck…… About how much will it cost to fill up?
You have one hour to take a 50 question test.About how much time can you spend on each question? Close enough is good enough!
The rounding poem Find your number Look right next door4 or less, just ignore 5 or more add one more!
Rounding Whole NumbersRound 474 to the closest hundred. 474 Find your number Look right next door Four or less, just ignore Five or more, add one more
474 Rounded to the hundreds becomes 500Round 474 to the closest 10’s 474 Just ignore - 470
Try These 4,215 394 27 127,591 638
What about decimal numbersThe same rules (and poem) apply! Round to the closest hundredths 4.167 Find your number Look right next door 4.17
Remember If you are asked to round to the nearest tenth…….your answer stops at the tenth place! Example: Round to the closest tenth would be 42.7
Special Case! Rounding a 9Round to the closes hundredths Since there is a “9” in the hundredths place consider the tenth and hundredths together – 19 – do you leave it at 19 or move it to 20?
Round 4.95 to the closest tenthSince there is a “9” in the tenth spot consider the ones and tenths together…… should you leave it at 49 or move it to 50? 4.95 rounded to the nearest tenth is 5.0
Try these 4.56 4.6 5.32 5.3 0.98 1.0 Round to hundredthsRound to tenths: 4.56 4.6 18.784 18.78 5.32 5.3 9.46 9.456 10.00 0.98 1.0 9.997
Homework Page 600 Lesson 3-3 at the top of the page 1-20
Rounding Decimal Numbers Sometimes close enough is good enough!
Comparing and Ordering Decimals When Will I Ever Do That???!!!
Today we will round very large and very small numbers. round – to replace a number by another number of approximately the same value but having fewer digits:
Rounding Objective: Round two-digit numbers to the nearest ten. Round three-digit numbers to the nearest hundred. Round using decimals Estimate sums and.
Adding and Subtracting Whole Numbers and Decimals
How do you ESTIMATE numbers? Use the skill of ROUNDING.
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.
Place Value with Decimals
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.
Rounding Quotients SWBAT round decimal quotients to the nearest tenth, hundredth, and thousandth.
Rounding When do you use rounding? When the question asks you to round. When the question asks you to estimate. When the question asks “about how many”…?
© 2007 M. Tallman. Memorize this Poem Find your number. Look right next door. 4 or less, just ignore. 5 or more, add 1 more.
Rounding 3 Round to the nearest whole number 3.46
Math Grade 4 Mrs. Ennis Rounding Part 2 Lesson Four.
Decimal Place Value and Rounding Decimals
Rounding For Second Grade When do you use rounding? When the question asks you to round. When the question asks you to estimate. When the question asks.
Rounding Which number is closer?.
Notes Over 5 – 1 ____ ____ ____. ____ ____ ____ hundreds tens ones tenths hundredths thousandths Give the value of each digit One and thirty-sixhundredths.
Rounding Whole Numbers Rounding Decimals Whole Number Estimation Decimal Estimation * Click the star on the desired box first and then click the box itself.
EXAMPLE 1 Expressing a Number in Different Ways a. Write 20 hundredths using only tenths.
Mental Math Math Team Skills Test 20-Question Sample.
Lesson 3.3 Rounding Decimals
How to subtract integers
How to round a number with two decimal places to the nearest tenth
4.4 Estimating with Decimals. Homework Mental Math Give a whole-number estimate for these decimal addition problems. Show which whole numbers you used:
I can round decimals to the nearest given place value
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.
Rounding Numbers Prepare by Mr. Jerly Cayanan When do you use rounding? When the question asks you to round. When the question asks you to estimate.
Decimals: Add, Subtract, Multiply & Divide
Lesson 7 and 8 Round a given decimal to any place using place value understanding and the vertical number line.
Step 2: Circle the number to the right of the underlined decimal place Rounding Decimals.
Comparing and Ordering Decimals Lesson 1-3. Using Models If you are comparing tenths to hundredths, you can use a tenths grid and a hundredths grid. Here,
Lesson 33 Ordering Decimals. Ordering Decimals is just like comparing… Steps: 1. Look at any #s before the decimal 2. If all 0… a. Look at the # in the.
Rounding Decimals using Place Value.. Essential Question: How can I use place value understanding to round decimals to any place?
Decimals Review by Lauren McCluskey.
Rounding Decimals. Step 1: Identify the place you are rounding to, and place a circle around it. Rounding Decimals.
Decimals (Day 1) Place Thousands Hundreds Tens Ones . Tenths
Math Rounding By Grade 4.
5 Minute Check Complete in your notebook. Estimate each product x x x 8 Multiply x x x 25.
Type your name and send: Next. Spot test: Round this number to the nearest thousand: Next.
Khadasia and Olivia are going shopping for new fall clothes. Khadasia is taking $ to the mall with her. Olivia is taking $ How much are they.
Rounding Find the digit Look next door Five or higher add one more four or less Let it rest.
5 th Jeopardy Cap. 1 & 2 Place Value Compare and order decimals Place Value Decimals RoundAdd/ Subtract decimals
Rounding Decimals Review and Multiplying Decimals
LESSON 1.3 ESTIMATION.
Objective: TLW round numbers to the nearest 10 or 100. GLE# 12
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