7th CC Review-Day 1 Number Systems

Michelle initially has 15 3/4 cups of flour and uses 2 1/4 cups to make bread for a school bake sale. How much flour does she have left?

Evelyn is checking her math homework and comes across the expression -34b + 18. She wonders if this is equal to 8(2.25 - 4.25b) that Liam wrote in his notebook. Is Evelyn's expression equivalent to Liam's?

What is the decimal equivalent of 9/12?

Sara poured 3/4 of the juice from a 2-liter bottle while serving guests at a party. How much juice, in liters, is still left in the bottle?

Avery and Harper are standing at points A and B respectively on a city map. Select all the expressions that show the distance between points A and B.

Daniel and Jackson are playing football. Jackson throws the ball to Daniel on the second down and they gain some yards. On the third down, they gain more yards. Enter the difference, in yards, between the second down and third down.

Mia and Oliver are playing a game at the park where they move a toy car along a marked track. Mia pushes the car forward by 3/4 meters, and Oliver pulls it backward by 1.75 meters. Which track model represents the final position of the toy car?

Kai was organizing a charity event and had to calculate the total number of volunteers needed. He started with 8 groups of volunteers, each group having 'n' members. During the day, 2 groups were reassigned to another task, reducing the count by '2n'. By the end of the event, 14 more groups, each also having 'n' members, joined in. Select the expression that represents these operations.

If each worker's harvested amount of apples is proportional to the number of hours worked, how many pounds of apples did Employee B harvest?

Mia and Nora were comparing the results of their math quizzes. Mia scored 26 out of 100 points, and Nora scored 41 out of 100 points. What number should replace the box to show the difference in their scores: 26/100 - 41/100 = □ - 41/100?

(a)