i-Ready Diagnostic Number and Operations Questions and Answers

Question 1

A school is planning a field trip for 848 students from three different grade levels: 287 third-graders, 312 fourth-graders, and 249 fifth-graders.
To get a quick, reasonable estimate of the total number of students, which calculation is most appropriate?

Accepted Answer

300 + 300 + 250

Answer

200 + 300 + 200

Answer

280 + 310 + 240

Answer

287 + 312 + 249

Question 2

An educator asks a student to describe the value of the digit 3 in the number 53,981. The student replies, 'The 3 is in the thousands place.' Which statement best describes the student's understanding?

Accepted Answer

The student confused the digit's place with its value.

Answer

The student correctly identified the place of the digit.

Answer

The student does not understand place value beyond the hundreds place.

Answer

The student correctly identified the value of the digit.

Question 3

A student solves the problem 8 x 27 by breaking it into (8 x 20) + (8 x 7) to make the calculation easier. Which mathematical property is the student using?

Accepted Answer

The Distributive Property

Answer

The Commutative Property of Multiplication

Answer

The Associative Property of Multiplication

Answer

The Identity Property of Multiplication

Question 4

Which of the following fractions is NOT equivalent to 3/4?

Accepted Answer

8/12

Answer

9/12

Answer

12/16

Answer

6/8

Question 5

A student was asked to add 14.7 and 2.35. The student incorrectly aligned the numbers and got an answer of 3.82. What is the primary conceptual error in the student's work?

Accepted Answer

The student failed to align the numbers by their decimal point.

Answer

The student added from left to right instead of right to left.

Answer

The student made a calculation error when adding 7 and 5.

Answer

The student forgot to carry over a value to the next column.

Question 6

Which statement accurately describes the relationship between the numbers 6 and 24?

Accepted Answer

6 is a factor of 24, and 24 is a multiple of 6.

Answer

6 is a multiple of 24.

Answer

24 is a factor of 6.

Answer

6 and 24 share no common factors other than 1.

A school is planning a field trip for 848 students from three different grade levels: 287 third-graders, 312 fourth-graders, and 249 fifth-graders.To get a quick, reasonable estimate of the total number of students, which calculation is most appropriate?

A school is planning a field trip for 848 students from three different grade levels: 287 third-graders, 312 fourth-graders, and 249 fifth-graders.
To get a quick, reasonable estimate of the total number of students, which calculation is most appropriate?