In grade 8 math, students typically learn a variety of mathematical concepts and skills, such as:

- Rational numbers: Students learn to work with fractions, decimals, and percents and understand the relationships between them.
- Algebraic expressions: Students learn to manipulate and simplify algebraic expressions, and use them to solve equations and inequalities.
- Geometry: Students learn about the properties and relationships of two-dimensional and three-dimensional shapes, including lines, angles, triangles, quadrilaterals, circles, and volume.
- Data analysis and probability: Students learn to collect, analyze, and interpret data using graphs, tables, and statistics. They also learn to understand and apply probability concepts.
- Measurement: Students learn to measure and compare quantities such as length, area, volume, weight, and time.

Grade 8 math question papers may include a variety of question types, such as multiple choice, fill-in-the-blank, short answer, and extended response. The questions may test the student’s understanding of math concepts and ability to apply them to solve problems.

### Sample Test Questions

10 sample test questions about rational numbers that could be suitable for grade 8 students:

- Simplify the fraction 12/18.
- Convert the fraction 3/4 to a decimal.
- Convert the fraction 5/6 to a percent.
- What is the simplified form of the fraction 9/15?
- Convert the decimal 0.75 to a fraction.
- Convert the percent 75% to a fraction.
- Simplify the fraction 8/12.
- Convert the fraction 2/3 to a decimal.
- Convert the fraction 7/8 to a percent.
- What is the simplified form of the fraction 6/9?

#### Answer

- Convert the fraction 3/4 to a decimal:
- Divide the numerator (3) by the denominator (4) to get the decimal representation: 3/4 = 0.75
- Result: 0.75

- Convert the fraction 5/6 to a percent:
- Divide the numerator (5) by the denominator (6) and multiply the result by 100% to express it as a percentage: (5/6) x 100% = 83.33333333…%
- Result: 83.33333333…%

- What is the simplified form of the fraction 9/15?
- Divide the numerator and denominator by their greatest common factor to simplify the fraction: 9/15 = (9/3)/(15/3) = 3/5
- Result: 3/5

- Convert the decimal 0.75 to a fraction:
- Multiply the decimal by 100 to express it as a fraction with a denominator of 100: 0.75 = 75/100
- Simplify the fraction by dividing the numerator and denominator by their greatest common factor: 75/100 = (75/25)/(100/25) = 3/4
- Result: 3/4

- Convert the percent 75% to a fraction:
- Express the percent as a fraction with a denominator of 100: 75% = 75/100
- Simplify the fraction by dividing the numerator and denominator by their greatest common factor: 75/100 = (75/25)/(100/25) = 3/4
- Result: 3/4

- Simplify the fraction 8/12:
- Divide the numerator and denominator by their greatest common factor to simplify the fraction: 8/12 = (8/4)/(12/4) = 2/3
- Result: 2/3

- Convert the fraction 2/3 to a decimal:
- Divide the numerator (2) by the denominator (3) to get the decimal representation: 2/3 = 0.66666666…
- Result: 0.66666666…

- Convert the fraction 7/8 to a percent:
- Divide the numerator (7) by the denominator (8) and multiply the result by 100% to express it as a percentage: (7/8) x 100% = 87.5%
- Result: 87.5%

- What is the simplified form of the fraction 6/9?
- Divide the numerator and denominator by their greatest common factor to simplify the fraction: 6/9 = (6/3)/(9/3) = 2/3
- Result: 2/3

### Grade 8 Math Question Worksheets

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