i-Ready Diagnostic Algebra and Algebraic Thinking Questions and Answers

Question 1

A baker starts the day with 48 muffins. After selling some muffins, there are 15 left. If 'm' represents the number of muffins sold, which equation correctly represents this situation?

Accepted Answer

48 - m = 15

Answer

m - 15 = 48

Answer

48 + m = 15

Answer

15m = 48

Question 2

Which of the following equations demonstrates the associative property of addition?

Accepted Answer

(3 + 8) + 4 = 3 + (8 + 4)

Answer

7 + 5 = 5 + 7

Answer

6 × (2 + 3) = (6 × 2) + (6 × 3)

Answer

9 + 0 = 9

Question 3

A numerical pattern starts with the number 3. The rule for the pattern is 'multiply by 2, then add 1.' What is the fourth number in this pattern?

Accepted Answer

31

Answer

15

Answer

29

Answer

7

Question 4

A student is saving money for a new video game that costs $60. They already have $22 saved. Which inequality represents 'm', the amount of money the student still needs to save to have *at least* enough for the game?

Accepted Answer

22 + m ≥ 60

Answer

22 + m < 60

Answer

22 + m > 60

Answer

22 + m ≤ 60

Question 5

A school is planning a field trip. The total cost is represented by the expression 5b + 150, where 'b' is the number of students attending. What does the term '150' most likely represent in this context?

Accepted Answer

A fixed fee, such as the bus rental cost.

Answer

The number of buses needed.

Answer

The cost per student.

Answer

The total number of students on the trip.

Question 6

The equation y = x + 4 describes a relationship between two variables, x and y. Which of the following scenarios could be represented by this equation?

Accepted Answer

The age of Sam, y, who is 4 years older than his brother, whose age is x.

Answer

The total cost, y, of buying x books that cost $4 each.

Answer

The number of miles left to run, y, in a 4-mile race after running x miles.

Answer

The number of pencils, y, remaining in a box of pencils after x pencils are given away from a starting total of 4.

A baker starts the day with 48 muffins.After selling some muffins, there are 15 left.If 'm' represents the number of muffins sold, which equation correctly represents this situation?

A baker starts the day with 48 muffins.
After selling some muffins, there are 15 left.
If 'm' represents the number of muffins sold, which equation correctly represents this situation?