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Adding and Subtracting Decimals
Why Do We Need Decimals? It helps makes things exact!
Why Do We Need Decimals? Money: One dollar and thirty two cents is the same thing as Distance: Exactly how many miles is it from your house to school? (You couldnt say without decimals!)
Adding Decimals The problem: = ___?___
Adding Decimals is easy if you keep your work neat! Step 1: Line up the decimal points! Write zeros as place holders, if necessary
Step 2 Step 2: Add the hundredths. Regroup if necessary
Step 3 Step 3: Add the tenths. Regroup if necessary
Step 4 Step 4: Add the ones, then the tens. Place the decimal point! = 84.68
Decimals – Subtraction 2 tenths - 1 tenth =1 tenth = tenths - 3 tenths =3 tenths = 0.3.
63.45 – Lesson 4-6 Example Example 3 Find – Write the numbers vertically. Line up the decimal points. Add a zero so that the.
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Place Value. Place Value: The Value of where the digit is in the number such as Tens Hundreds Tenths hundredths.
What is a Decimal?. What is a decimal? A decimal is similar to a fraction in that it is not a whole number. It is a part of a number. We use decimals.
Adding and Subtracting Decimals NS 1.0 Solve problems involving addition and subtraction of decimals.
Lesson 4 Mini-lesson: Adding and Subtracting Tenths and Hundredths.
Decimals Place counts!. Place value is the digits “address” in the number. Think about where the digit is placed The 1 is in the _____________.
What is a Decimal?. What is a decimal? A decimal is similar to a fraction – It’s not a whole number. Rather than saying ½, we can say 0.50 Instead of.
© Hamilton Trust Keeping Up Term 1 Week 6 Day 1 Objectives: Know what each digit represents in numbers with two decimal places; Use place value for tenths.
Adding and Subtracting Decimals August 20, 2013 Sixth Grade Math.
Lesson 4-6 Example Example 2 Find 1.24 – 0.6 using decimal models. 1.Model 1.24.
Activity You can use base-ten pieces to model decimal addition and subtraction. 1Model the sum of 0.76 and 0.58 using base-ten pieces. 2 Combine and group.
$ Money $. $ - dollars $ 4.78 ¢ - cents 0.54 ¢ . – decimal Money - symbols.
Autumn Myst Your Subtitle Goes Here. Add, Subtract and Compare Suppose you go to a store and purchase a $23 item and a $7 item. What would you say if.
Decimals: Add, Subtract, Multiply & Divide Lesson 1c.
Comparing and Ordering Decimals. Using Models If you are comparing tenths to hundredths, you can use a tenths grid and a hundredths grid. Here, you can.
1-2 Adding and Subtracting Decimals What You’ll Learn To add and subtract 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,
Pharmacology I Math Review. Fractions – add or subtract Convert to equivalent fraction with like denominators Perform math on numerators Example ½ + 1/8.
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.
Adding and Subtracting Decimals Textbook page 102.
1 STANDARD 1.2 A tenth of a tenth? A tenth of three tenths? Finding the pattern: A tenth of… Six tenths of six tenths? Four tenths of five tenths? PROBLEM.
Subtracting Decimals Honors Math – Grade 5. Saturn takes Earth years to revolve around the Sun. Jupiter takes Earth years to revolve around.
Adding & Subtracting Decimals I will add and subtract decimals.
tens ones. tenths hundredths thousandths Fill in Place Value Chart.
Decimals Mr. Walker. What is a Decimal? It is a dot after a number. Every whole number has a decimal on the end, even if it is not shown. A decimal means.
Subtraction Algorithm for Decimals Use the reverse cycle to work out = 4.92.
2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Comparing decimals Adding decimals.
At the end of this lesson you will be able to: Understand the value of a decimal by placing it on a number line. Understand the relationship a decimal.
Adding and Subtracting Decimals. Rules for adding or subtracting decimals: (1) Line up the numbers by the decimal point.
Unit 2 Estimation and Computation. CFA: Unit 2 1. What digit is in the hundreds place? A. 5 B. 6 C. 3 D. 1.
Place Value YOUR SUBTITLE GOES HERE. Place Value The number in the chart above is read “fifty-one and three hundred forty-five thousandths.” Read the.
Addition & Subtraction of Decimals. Add and Subtract like Columns = _______ tens ones RULE: Only add and subtract LIKE.
Saving Money LEARNING OBJECTIVE To be able to add and subtract money to help us save and keep track of how much money we have.
Chapter 5 Add and Subtract Decimals. Lesson 1 – Round Decimals 1.Underline the digit in the place to which you want to round. 2.Look at the digit to the.
Adding and Subtracting Decimals 1-2. Adding Decimals Align the decimal points Insert zeros so each addend has the same number of decimal points Example:
Adding and Subtracting decimals! Mr. Vachon says, “If you can carry, borrow, and line up place values… I bet you can add and subtract decimals as fast.
Students: Today is a red light day. Cell phone use is prohibited. This is your warning.
+ 1 Whole Step 1: Add the fractions. Regroup, if needed. 1 1 Step 2: Add the whole numbers. Step 3: Use the GCF to simplify,
Check your understanding What is 2.45 − 0.37? What is 4 – 3.78? What is ?
Comparing Decimals. Essential Standard I can compare and order decimals to the thousandths place.
Decimals What is a decimal? Do you know?. A decimal is… Written just like a period Part of a whole.
EXAMPLE 2 Subtracting Whole Numbers To find the difference of and, you line up the numbers on the ones’ place. Next you subtract the ones, then the tens,
Round- to find the nearest value of a number based on a given place value.
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