Page 72 - Mathematics of Business and Finance

52 Chapter 1 | Review of Basic Arithmetic

1 Review Exercises

Answers to the odd-numbered problems are available at the end of the textbook.

PLACE VALUE OF NUMBERS AND ROUNDING 9. Round the following amounts to the nearest five cents:
NUMBERS a. $8.28 b. $25.03
1. Round the following to the indicated place values: c. $17.37 d. $2.21

a. 9157 to the nearest hundred 10. Round the following amounts to the nearest five cents:
b. 53,562 to the nearest ten a. $0.74 b. $45.03

c. $7915 to the nearest $100 c. $30.98 d. $19.01
d. $34.9861 to the nearest cent FACTORS AND MULTIPLES
2. Round the following to the indicated place values: 11. Determine the least common multiple (LCM) of the
a. 1645 to the nearest ten following:
b. 9558 to the nearest thousand a. 24, 40 b. 9, 12, 15 c. 80, 120
c. $25,972 to the nearest $1000 12. Determine the least common multiple (LCM) of the
d. $895 to the nearest $10 following:

3. Round the following to the indicated place values: a. 44, 60 b. 9, 36, 64 c. 90, 165
a. 14.3575 to the nearest thousandth 13. Determine the greatest common factor (GCF) of the
b. 142.9852 to the nearest whole number following:
c. $86.6246 to the nearest cent a. 14, 49 b. 12, 18, 20 c. 30, 75, 180
d. $4.0573 to the nearest cent 14. Determine the greatest common factor (GCF) of the
following:
4. Round the following to the indicated place values: a. 15, 25 b. 6, 8, 10 c. 25, 125, 200

a. 132.1356 to the nearest tenth
b. 2.8525 to the nearest whole number FRACTIONS
For Problems 15 to 18, express your answer as a mixed
c. $85.4273 to the nearest cent number.
d. $34.9861 to the nearest cent 3 1 1 1
15. Wang Li worked 3 , 4 , 1 , and 2 hours overtime
4
2
4
2
5. Determine the answers to the following and round to
two decimal places: during the last four days. Calculate the number of
a. 125.71 ÷ 4 b. 775 ÷ 365 overtime hours she worked during the four days.
1
3
1
1
c. 56,000 ÷ 52 d. 142.75 ÷ 12 16. Abigail worked 9 , 5 , 7 , and 5 hours during the
2
4
4
2
6. Determine the answers to the following and round to
two decimal places: last four days. Calculate the total number of hours she
a. 75.45 ÷ 12 b. 845 ÷ 365 worked during the four days.
c. 29.25 ÷ 4 d. 48,000 ÷ 26 17. Sana spent half of her bonus amount of $3500 on a
vacation and invested one-third of the remaining in a
7. Determine the answers to the following and round to mutual fund. What was the amount of the bonus with
the nearest cent: which she was left?
a. $37.50 × 1.50 b. $37.45 × 12.25 18. Sundeep received a scholarship of $6000. Two-thirds
c. $91.38 × 6.50 d. $2.25 × 9.75 of this amount was spent on tuition and one-fourth of
the remaining amount was spent on books. What was
8. Determine the answers to the following and round to
the nearest cent: the amount of the scholarship with which he was left?
a. $28.39 × 1.50 b. $37.48 × 2.00
c. $40.75 × 2.25 d. $25.56 × 19.50