Adding and Subtracting Rationals Numbers
The temperature was −4°C in the morning. By afternoon, it increased by 9°C. What was the afternoon temperature?
What is 5°C?
A submarine descends 4.5 meters per minute for 4 minutes. What is the submarine’s total change in position?
What is −18 meters?
The temperature was −3°C in the morning. It rose 8°C during the day and then dropped 5°C at night. What was the final temperature?
What is 0°C?
At a school carnival, ½ of the students chose pizza for lunch. What percentage of the students chose pizza?
What is 50%?
Ava drank 0.75 of a bottle of water during soccer practice. What percent of the bottle did she drink?
What is 75%?
Maya had $18.50 in her account. She spent $23.75. What is her new account balance?
What is −$5.25?
A hiker’s elevation changes by −24 feet over 6 equal sections of a trail. What is the average change in elevation per section?
What is −4 feet?
Jordan has $25.50 in his lunch account. He buys lunch for $4.75 each day for 4 days. How much money is left in his account?
What is $6.50?
During a basketball game, Marcus made 0.75 of his free throws. Write 0.75 as a fraction in simplest form.
What is ¾?
A weather station recorded the temperature as −8°C in the morning. By lunchtime, it had risen 13°C. What was the temperature at lunchtime?
What is 5°C?
A submarine is 35.5 meters below sea level. It rises 12.8 meters. What is its new position relative to sea level?
What is −22.7 meters?
A bank account is charged a $3.75 fee each month for 6 months. What is the total change in the account balance from the fees?
What is −$22.50?
A submarine starts at −12.5 meters relative to sea level. It descends 3.5 meters per minute for 4 minutes, then rises 8 meters. What is its final position?
What is −18.5 meters?
In a survey, 3 out of every 5 students said science was their favorite subject. Write ⅗ as a decimal and a percent.
What are 0.6 and 60%?
Noah divides 2 pizzas equally among 3 friends. Each friend receives ⅔ of a pizza. When ⅔ is written as a decimal, is it terminating or repeating?
What is a repeating decimal?
During a football game, a team gained 7½ yards on one play and lost 12¼ yards on the next play. What was the team's total change in yards?
What is −4¾ yards?
The temperature dropped 15¾°F over 3½ hours at a constant rate. What was the temperature change per hour?
What is −4½°F per hour?
A football team loses 3½ yards on each of 4 plays. On the next play, the team gains 9¾ yards. What is the team's total change in yards?
What is −4¼ yards?
A video game player completed 87.5% of the levels in a game. Write 87.5% as a decimal and a fraction in simplest form.
What are 0.875 and ⅞?
Mia is organizing number cards. She picks the number −12. Using the categories natural, whole, integer, rational, and irrational, which categories does −12 belong to?
What are integer and rational?
At noon, the temperature was −2¾°F. Overnight, the temperature dropped another 6½°F. What was the temperature after the drop?
What is −9¼°F?
A scuba diver changes position by −18⅔ meters over 2⅓ minutes at a constant rate. What is the diver’s change in position per minute?
What is −8 meters per minute?
A scuba diver starts 6½ meters below sea level. The diver descends 2¼ meters per minute for 4 minutes, then rises 6 meters. What is the diver's final position relative to sea level?
What is −9½ meters?
At a fundraiser, 7 out of every 8 tickets were sold. Write the fraction of tickets sold as a decimal and a percentage.
What are 0.875 and 87.5%?
A carpenter needs a board that is exactly √36 feet long. Classify √36 using all categories that apply: natural, whole, integer, rational, or irrational.
What are natural, whole, integer, and rational?