Presentation on theme: "Chapter 7 Basic Math Skills 1 Section 7.1 Math Fundamentals Marketing Essentials Chapter 7 Basic Math Skills."— Presentation transcript:
Chapter 7 Basic Math Skills 1 Section 7.1 Math Fundamentals Marketing Essentials Chapter 7 Basic Math Skills
2 SECTION 7.1 What You'll Learn How to write numbers in words using commas and hyphens How to understand fractional amounts How to perform basic math operations with decimal numbers How to round numbers, especially amounts of money How to convert fractions to decimal equivalents Math Fundamentals
Chapter 7 Basic Math Skills 3 SECTION 7.1 Math Fundamentals Why It's Important Virtually every job in the fields of marketing and business requires a good understanding of math fundamentals. Many young people need a review of basic math skills to provide a good foundation in math. In this section, you will have an opportunity to sharpen your math skills.
Chapter 7 Basic Math Skills 4 SECTION 7.1 Math Fundamentals Key Terms digits fractions numerator denominator mixed numbers decimal number
Chapter 7 Basic Math Skills 5 SECTION 7.1 Math Fundamentals Whole numbers can be written without fractions or decimals. To read a whole number or write it in words, follow these five steps: Writing Whole Numbers Separate the number into groups of three digits: units, thousands, and millions. Separate the groups with commas. Never use the word "and". Use hyphens in numbers less than 100 that are written as two words. When a three-digit group is made up of only zeros, do not write the name of the group.
Chapter 7 Basic Math Skills 6 SECTION 7.1 Math Fundamentals Fractions Fractions are numbers used to describe a part of some standard amount. The numerator is the top number. It represents the number of parts. The denominator is the bottom number. It represents how many parts are in the whole.
Chapter 7 Basic Math Skills 7 SECTION 7.1 Math Fundamentals Decimals A decimal number is a fraction or mixed number whose denominator is a multiple of 10. To read or write a decimal number, follow these steps. Use as an example. 1. Begin with the whole number to the left of the decimal point (fifteen). 2. Read or write "and" for the decimal point. 3. Read or write the number to the right of the decimal point as a whole number (eighty-three). Slide 1 of 2
Chapter 7 Basic Math Skills 8 SECTION 7.1 Math Fundamentals 4. Use the name of the decimal place of the final digit (thousandths). The result is fifteen and eighty-three thousandths. You may also hear decimal numbers spoken using the whole number and only the names of the digits in the decimal places, with "point" for the decimal point. For example, might be spoken as "fifteen point zero eight three". Decimals Slide 2 of 2
Chapter 7 Basic Math Skills 9 SECTION 7.1 Math Fundamentals To add or subtract decimal numbers, first list the numbers vertically, keeping the decimal points in line with each other. Then add or subtract as you would with whole numbers. Sometimes you may need to write zeros to fill a column. Adding and Subtracting Decimal Numbers Align decimal points vertically = ? Write 0s as needed. Add as with whole numbers
Chapter 7 Basic Math Skills 10 SECTION 7.1 Math Fundamentals 1.Find the decimal place to which you are rounding. 2. Look at the digit to the right of that place. 3. If the digit is less than 5, leave the first digit as is. If the digit is 5 or greater, round up. Rounding Decimal Numbers
Chapter 7 Basic Math Skills 11 SECTION 7.1 Math Fundamentals 1.Set up the division problem as you would with whole numbers. 2.Shift the decimal point in the divisor so that the divisor becomes a whole number. Shift the decimal point in the dividend the same number of decimal places. 3.Place the decimal point in the answer space directly above its new position in the dividend. 4.Divide as you would with whole numbers. Dividing Decimal Numbers
Chapter 7 Basic Math Skills 12 SECTION 7.1 Math Fundamentals To convert any fraction to a decimal, simply divide the numerator by the denominator. Converting Fractions to Decimals Numerator Denominator 1414 =1 ÷ 4 =
Chapter 7 Basic Math Skills A SSESSMENT Reviewing Key Terms and Concepts 1. Write the whole number 2,000,265 in words, using commas and hyphens correctly. 2. Explain the meaning of 3/5. 3. Multiply: $4.99 x 5 4. Round the answer from question 3 to the nearest dollar. 5. Convert the fraction 3/4 to its decimal equivalent.
Chapter 7 Basic Math Skills A SSESSMENT Thinking Critically Sometimes rounding decimal numbers to whole numbers makes a complicated math problem easy to do "in your head." Name at least one example when rounding is helpful.
Chapter 7 Basic Math Skills Graphic Organizer Hundreds Understanding Decimal Numbers Tens Ten Thousandths Ones Thousandths Hundredths Tenths Decimal point Decimal placement name
Chapter 7 Basic Math Skills 16 Marketing Essentials End of Section 7.1