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Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller
Edition 12ISBN: 978-0132605540Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller
Edition 12ISBN: 978-0132605540 Exercise 67
First estimate using front-end rounding and then multiply. (See Example.)
Multiplying Decimals
Multiply each of the following.
(a) 8.34 × 4.2
(b).032 ×.07
SOLUTION
(a) First multiply the given numbers as if they were whole numbers.
There are two decimal places in 8.34 and one in 4.2. This means that there are 2 + 1=3 decimal places in the final answer. Find the final answer by starting at the right and counting three places to the left:
35.028 3 places to the left
(b) Here, it is necessary to attach zeros at the left in the answer:
Multiplying Decimals
Multiply each of the following.
(a) 8.34 × 4.2
(b).032 ×.07
SOLUTION
(a) First multiply the given numbers as if they were whole numbers.
There are two decimal places in 8.34 and one in 4.2. This means that there are 2 + 1=3 decimal places in the final answer. Find the final answer by starting at the right and counting three places to the left:
35.028 3 places to the left
(b) Here, it is necessary to attach zeros at the left in the answer:
Explanation
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Estimate using front-end rounding and th...
Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller
Chapter 1: Whole Numbers and Decimals
Free
Chapter 2: Fractions and Mixed Numbers
Chapter 3: Percent
Chapter 4: Equations and Formulas
Chapter 5: Bank Services
Chapter 6: Payroll
Chapter 7: Mathematics of Buying
Chapter 8: Mathematics of Selling
Chapter 9: Simple Interest
Chapter 10: Compound Interest and Inflation
Chapter 11: Annuities, Stocks, and Bonds
Chapter 12: Business and Consumer Loans
Chapter 13: Taxes and Insurance
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