Combined Operations with Decimal Fractions

Slides:

Advertisements

Similar presentations

Catherine Conway MATH 081.  Writing decimals in expanded form is similar to writing whole numbers in expanded form.  For example: Write in.

Advertisements

CHRM 0950 Culinary Math Week 1 Math Basics.

Math Problems w/Sig Figs When combining measurements with different degrees of accuracy and precision, the accuracy of the final answer can be no greater.

Addition Subtraction Multiplication Division

Chapter 2 Lecture Basic Chemistry Fourth Edition Chapter 2 Measurements 2.4 Significant Figures in Calculations Learning Goal Adjust calculated answers.

5.4 – Dividing Decimals Long Division x 46.3 =

Temperature, time, receipts and bills They're even in the pound!

Pharmacology I Math Review.

Writing Terminating Decimals as Fractions

Multiplication and Division. Steps 1) Multiply 2) Count place values 3) Move the decimal left that number of spaces.

How many significant figures?

ORDER OF OPERATIONS x 2 Evaluate the following arithmetic expression: x 2 Each student interpreted the problem differently, resulting in.

6 x 99 Think: round off 99 to 100 So… 6 x 99 becomes 6 x 100 = 600 Then subtract: 600 – 6 = x 79 4 x 80 = 320 – 4 = 316.

Least Common Multiple, Greatest Common Factor, & Decimals

I can demonstrate fluency with multiplication combinations up to 12x12. Marking Period 1,2,3,4.

Significant Figures Not all numbers matter…. Significant Figures Definition: Digits of a number that are relevant when doing mathematical calculation.

Warm-Up 37/15 211/32 7/24 12/18 21/10 8/15. Decimal Review.

Fast Facts II 1 Decimal ____ = 50% = __ %

Chemistry 100 Significant Figures. Rules for Significant Figures  Zeros used to locate decimal points are NOT significant. e.g., 0.5 kg = 5. X 10 2 g.

The Multiplication Principle of Equality

Addition and Subtraction of significant figures. Rule 1 Before performing an addition or subtraction operation, round off numbers to the least amount.

2.3 Solving Multi-Step Equations

2.3 Solving Multi- Step Equations. Solving Multi-Steps Equations 1. Clear the equation of fractions and decimals. 2. Use the Distribution Property to.

Combined Operations with Common Fractions

Solve each equation in your lecture notebook. Do Now 1)x – 5 = 21 2)m – ( - 8) = -11 State the property you used in each problem.

Jeopardy Directions In Jeopardy, remember the answer is in the form of a question. Select a question by clicking on it. After reading the question, click.

Solving Multi-Step Equations

By: Tameicka James Addition Subtraction Division Multiplication

Significant Figures. Significant Figure Rules 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9)

Fractions and Decimal Fractions Fractions Decimal Fractions

Unit 3 lec 2: Significant Figures

2.3 Significant Figures in Calculations

Part 2 Significant Figures with Calculations

1.4 Significant Figures in Calculations

2-3 Solving Two-Step Equations

Review of yesterday… How many sig figs are in the following? 0.02

Addition Subtraction Multiplication Division

Addition Subtraction Multiplication Division

THE DISTRIBUTIVE PROPERTY

Subtraction Addition Multiplication Fractions Division 1pt 1 pt 1 pt

Chapter Two: I Rational Numbers

Addition Subtraction Multiplication Division

FOUR RULES OF WHOLE NUMBERS

Week August 2015.

Unit 1 lec 3: Significant Figures

In this tutorial you will be able to follow along step by step on how to solve basic operations involving fractions.

Lesson 2.1 How do you use properties of addition and multiplication?

Addition Subtraction Multiplication Division

Adding and Subtracting Decimals

Multi-Step Equations Mrs. Book.

Year 5 Number – number and place value

Warm-up September 14, 2016 Change to a decimal: 644% 23%

Chapter 2 Measurements 2.4 Significant Figures in Calculations

Addition Subtraction Multiplication Division

Using the Addition and Multiplication Principles Together

Significant Figures Revisiting the Rules.

Math Created by Educational Technology Network

2-3 Solving Two-Step Equations

Math-7 NOTES 1) 3x = 15 2) 4x = 16 Multiplication equations:

Addition & Subtraction Addition & Subtraction

Year 4 Number – number and place value

What do you think it means? Before:

Aim: How do we determine the number of significant figures in a measurement? Warm Up What is the difference between the values of 3, 3.0, and 3.00.

Calculation with Significant Figures

Significant Digits Calculations.

Significant Digits Calculations.

Presentation transcript:

Combined Operations with Decimal Fractions Unit 16 Combined Operations with Decimal Fractions

Basic Principles of Combined Operations with Decimal Fractions Follow the rules for addition, subtraction, multiplication, and division of decimal fractions to solve problems that combine operations with decimal fractions.

Basic Principles of Combined Operations with Decimal Fractions The first step in solving these problems is determining which operations are needed and in what order. Do the math necessary to solve the problem. Round off as directed.

Combined Operations with Decimal Fractions Example: Solve Round off answers to three places or thousandths.

Combined Operations with Decimal Fractions Solve within parentheses first:

Combined Operations with Decimal Fractions Finish the operations outside the parentheses: 0.087 + 8.004 =

Practical Problem A registered nurse (RN) working in the operating room earns $980.80 for a 40-hour week. A certified surgical technician (CST) earns $747.20 for a 40-hour week. What is the cost of labor for a 3 1/2-hour surgery if one RN and two CSTs are assisting?

Practical Problem First find the hourly rate for the RN: Find the hourly rate for the CST:

Practical Problem Now figure out how much the RN and two CSTs would earn in 3.5 hours: RN: – CSTs: The RN and CSTs: The total cost of labor is $216.58.