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This document covers exercises focused on rounding numbers to specific place values, estimating costs, and analyzing survey data related to productivity among office workers. Included are exercises that challenge students to round large numbers, estimate expenses for multiple items, and analyze survey results regarding peak productivity times. Each exercise provides practical applications in mathematics and data management that support learning foundational math skills, estimation techniques, and understanding basic statistical analysis within real-world contexts.
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Chapter 1 Section 1.3 Exercise #3
3,261,437 (ten-thousands) 3,261,437 1,437
3,261,437 (ten-thousands) 3,260,000
Chapter 1 Section 1.3 Exercise #9
3.671 (hundredths) 3.671 1
3.671 (hundredths) 3.670
3.671 (hundredths) 3.67
Chapter 1 Section 1.3 Exercise #21
Estimate the total cost of eight tires on sale for $56.99 each.
per tire $56.99 6.99
per tire $60.00
x8 tires per tire $60 $480
Chapter 1 Section 1.3 Exercise #27
Estimate the total cost of the following meal at a fast-food restaurant: Deluxe Hamburger: $1.89 Giant Fries: $1.29 Soda: $0.89
$1.89 .89 .29 $1.29 .89 $0.89
+ $1.89 $2.00 $1.29 $1.00 $0.89 $1.00 $4.00
Chapter 1 Section 1.3 Exercise #37
The graph shown gives the areas of the Great Lakes in square miles. Use the information to answer the following.
Estimate the area of Lake Huron. 23,000 square miles
Chapter 1 Section 1.3 Exercise #41
The graph shown represents a survey of 1385 office workers and shows the percents of people who indicated what time of day they feel is most productive for them. Use the information to answer the following.
Approximately how many people in the survey feel that late morning and early afternoon are the most productive times of day?
22% of 1385 office workers: 0.22(1385) = 304.7 7
22% of 1385 office workers: 0.22(1385) = 305 people
