Nicholas Zhao Teaches Math

CBE: Algebra Prep

Category focus

Number and Operations

Back to bank

Classify real numbers, estimate square roots, compare values, and use scientific notation.

Questions

13

Skill type

number and-operations

Study mode

Practice + review

Sample questions

Question

The density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in scientific notation?Open full-size question
  • A.
    Answer A: 1.429 × 103
  • B.
    Answer B: 1.429 × 102
  • C.
    Answer C: 1.429 × 10 3
  • D.
    Answer D: 1.429 × 10 2

Imported from a released STAAR assessment item. Review recommended for final answer key alignment.

Question

The points on the number line represent the values of four different numbers. A B C D 0 1 2 3 4 Which point best represents the value of 3 ?Open full-size question
  • A.
    Answer A: Point A
  • B.
    Answer B: Point B
  • C.
    Answer C: Point C
  • D.
    Answer D: Point D

Imported from a released STAAR assessment item. Review recommended for final answer key alignment.

Question

The area of a piece of land is 4,951,000 square meters. How is this number of square meters written in scientific notation?Open full-size question
  • F.
    Answer F: 4.951 × 106
  • G.
    Answer G: 4.951 × 10−− 6
  • H.
    Answer H: 4,951 × 103
  • J.
    Answer J: 4,951 × 10 −−3

Imported from a released STAAR assessment item. Review recommended for final answer key alignment.

Question

Set Q and Set Z are subsets of the real number system. Q = {rational numbers} Z = {integers} Which Venn diagram best represents the relationship between Set Q and Set Z? Real numbersOpen full-size question
  • A.
    Answer A: Z , because all rational numbers are integers Q Real numbers
  • B.
    Answer B: Q , because some integers are not rational numbers Z Real numbers Q
  • C.
    Answer C: , because all integers are rational numbers Z Real numbers
  • D.
    Answer D: , because the rational numbers and the integers Q Z have no elements in common

Imported from a released STAAR assessment item. Review recommended for final answer key alignment.

Question

The Venn diagram shows the relationship among several sets of numbers. Where should be placed in the Venn diagram?Open full-size question
  • A.
    Rational numbers, because is equal to
  • B.
    Integers, because is equal to
  • C.
    Irrational numbers, because is equal to
  • D.
    Whole numbers, because is equal to

Released 2023 STAAR Grade 8 Mathematics, question 1. Answer verified against the official key.

Question

The area of a square wall is 182 square feet. Which measurement is closest to the side length in feet of this wall?Open full-size question
  • A.
    91.0 ft
  • B.
    13.5 ft
  • C.
    54.0 ft
  • D.
    45.5 ft

Released 2023 STAAR Grade 8 Mathematics, question 9. Answer verified against the official key.

Question

Which list shows the numbers in order from least to greatest?Open full-size question
  • A.
    Answer A diagram
  • B.
    Answer B diagram
  • C.
    Answer C diagram
  • D.
    Answer D diagram

Released 2023 STAAR Grade 8 Mathematics, question 30. Answer verified against the official key.

Question

Which list shows the numbers in order from greatest value to least value?Open full-size question
  • A.
    Answer A diagram
  • B.
    Answer B diagram
  • C.
    Answer C diagram
  • D.
    Answer D diagram

Released 2024 STAAR Grade 8 Mathematics, question 2. Answer verified against the official key.

Question

The radius of the planet Neptune is approximately 15,300 miles. How is this number of miles written in scientific notation?Open full-size question
  • A.
    0.153 × 105
  • B.
    0.153 × 10−5
  • C.
    1.53 × 104
  • D.
    1.53 × 10−4

Released 2024 STAAR Grade 8 Mathematics, question 27. Answer verified against the official key.

Question

Which inequality is true?Open full-size question
  • A.
    Answer A diagram
  • B.
    Answer B diagram
  • C.
    Answer C diagram
  • D.
    Answer D diagram

Released 2025 STAAR Grade 8 Mathematics, question 4. Answer verified against the official key.

Question

At its core, the sun can reach temperatures as high as 27 million degrees Fahrenheit, or . How is this temperature written in scientific notation?Open full-size question
  • A.
    Answer A diagram
  • B.
    Answer B diagram
  • C.
    Answer C diagram
  • D.
    Answer D diagram

Released 2025 STAAR Grade 8 Mathematics, question 24. Answer verified against the official key.

Question

Which list shows the values ordered from least to greatest?Open full-size question
  • A.
    7.42                  745%
  • B.
    745%      7.42
  • C.
    745%                  7.42
  • D.
    7.42      745%

Released 2025 STAAR Grade 8 Mathematics, question 38. Answer verified against the official key.

Question

Given the inequality which value of x makes the inequality true?Open full-size question
  • A.
    Answer A diagram
  • B.
    11%
  • C.
    Answer C diagram
  • D.
    Answer D diagram

Released 2026 STAAR Grade 8 Mathematics, question 39. Answer verified against the official key.