Understanding Real Numbers

Understanding Real Numbers

9th Grade

8 Qs

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Understanding Real Numbers

Understanding Real Numbers

Assessment

Quiz

Others

9th Grade

Practice Problem

Hard

Created by

Hemant Kumar Dubey undefined

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a real number?

A real number cannot be negative.

A real number is a complex number.

A real number is any value on the number line, including rational and irrational numbers.

A real number is only a whole number.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can you give an example of an irrational number?

π

√2

3.14

-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between rational and irrational numbers?

Rational numbers are always whole numbers; irrational numbers are decimals.

Rational numbers can only be positive; irrational numbers can be negative.

Rational numbers are fractions of integers; irrational numbers cannot be expressed as fractions.

Rational numbers are infinite; irrational numbers are finite.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is the square root of 16 a real number?

Only for negative numbers

No

Yes

It is an imaginary number

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the properties of real numbers?

The properties of real numbers include closure, associativity, commutativity, identity elements, inverses, distributivity, and order.

Commutativity is only relevant in geometry.

Closure and identity only apply to integers.

Real numbers do not have inverses.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you represent real numbers on a number line?

Real numbers are represented on a number line by marking points corresponding to their values, with zero at the center and positive numbers to the right and negative numbers to the left.

Real numbers are represented as fractions only.

Real numbers are only shown as whole numbers on the line.

Real numbers are represented by colors instead of points.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the absolute value of -5?

5

-5

0

5.5

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