Integers and Rational Numbers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

Is -9 an integer?

Back

True

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where the numerator and denominator are integers, and the denominator is not zero.

Front

Can a rational number be a whole number?

Back

Yes, whole numbers are also rational numbers because they can be expressed as a fraction with a denominator of 1.

Front

Which of the following is NOT a rational number: 1/2, -3, or √2?

Back

√2 is not a rational number because it cannot be expressed as a fraction.

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction. For example, the opposite of -4 is 4.

Front

Fill in the blank: -3.4 ________ -2.5

Back

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Front

What is the difference between whole numbers and integers?

Back

Whole numbers are non-negative integers (0, 1, 2, 3, ...), while integers include both positive and negative whole numbers as well as zero.

Front

What is the number line?

Back

A number line is a straight line that represents numbers as points at equal intervals, allowing for the visualization of positive and negative numbers.

Front

How do you represent -1/4 on a number line?

Back

-1/4 is located to the left of 0, between -1/2 and 0.