수와 연산 전체 문제

Remodeling a Kitchen Marissa’s kitchen remodeling cost $18,549, Round the cost to the nearest ⓐ ten ⓑ hundred ⓒ thousand and ⓓ ten-thousand.

Population The population of China was 1,339,724,852 on November 1, 2010. Round the population to the nearest ⓐ billion ⓑ hundred-million; and ⓒ million.

Elevation The highest elevation in the United States is Mount McKinley, Alaska, at 20,320 feet above sea level. The lowest elevation is Death Valley, California, at 282 feet below sea level.

Use integers to write the elevation of:

ⓐ Mount McKinley.

ⓑ Death Valley.

Extreme temperatures The highest recorded temperature on Earth was $57^\circ$ Celsius. The lowest recorded temperature was $90^\circ \,\text{below}\,0^\circ$ Celsius.

Use integers to write the:

• ⓐ highest recorded temperature.
• ⓑ lowest recorded temperature.

In the morning, the temperature in Urbana, Illinois was 11 degrees. By mid-afternoon, the temperature had dropped to $-9$ degrees. What was the difference of the morning and afternoon temperatures?

In the morning, the temperature in Anchorage, Alaska was 15 degrees. By mid-afternoon the temperature had dropped to 30 degrees below zero. What was the difference in the morning and afternoon temperatures?

The temperature in Denver was $-6$ degrees at lunchtime. By sunset the temperature had dropped to $-15$ degrees. What was the difference in the lunchtime and sunset temperatures?

Temperature On January $15,$ the high temperature in Anaheim, California, was $84^\circ .$ That same day, the high temperature in Embarrass, Minnesota was $-12^\circ .$ What was the difference between the temperature in Anaheim and the temperature in Embarrass?

Temperature On January $21,$ the high temperature in Palm Springs, California, was $89^\circ ,$ and the high temperature in Whitefield, New Hampshire was $-31^\circ .$ What was the difference between the temperature in Palm Springs and the temperature in Whitefield?

Football On the first down, the Chargers had the ball on their 25-yard line. They lost 6 yards on the first-down play, gained 10 yards on the second-down play, and lost 8 yards on the third-down play. What was the yard line at the end of the third-down play?

Football On first down, the Steelers had the ball on their 30-yard line. They gained 9 yards on the first-down play, lost 14 yards on the second-down play, and lost 2 yards on the third-down play. What was the yard line at the end of the third-down play?

New Car Purchase Selena’s new car cost $23,795.95. Round this number to the nearest ⓐ dollar ⓑ thousand dollars ⓒ ten thousand dollars.

Paycheck Annie has two jobs. She gets paid $14.04 per hour for tutoring at City College and $8.75 per hour at a coffee shop. Last week she tutored for 8 hours and worked at the coffee shop for 15 hours. ⓐ How much did she earn? ⓑ If she had worked all 23 hours as a tutor instead of working both jobs, how much more would she have earned?

Paycheck Jake has two jobs. He gets paid $7.95 per hour at the college cafeteria and $20.25 at the art gallery. Last week he worked 12 hours at the cafeteria and 5 hours at the art gallery. ⓐ How much did he earn? ⓑ If he had worked all 17 hours at the art gallery instead of working both jobs, how much more would he have earned?

Adele bought a skirt and a blouse. The skirt cost $15 more than the blouse. Let $b$ represent the cost of the blouse. Write an expression for the cost of the skirt.

Temperature The high temperature one day in Miami Beach, Florida, was $76^\circ$. That same day, the high temperature in Buffalo, New York was $-8^\circ$. What was the difference between the temperature in Miami Beach and the temperature in Buffalo?

A floral arbor is 7 feet tall. Convert the height to inches.

A picture frame is 42 inches wide. Convert the width to feet.

Kelly is 5 feet 4 inches tall. Convert her height to inches.

A playground is 45 feet wide. Convert the width to yards.