Sets/ Subsets

Front

What are natural numbers?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...). They do not include zero.

Front

Is zero included in natural numbers?

Back

False, natural numbers do not include zero.

Front

What is a whole number?

Back

Whole numbers are the set of non-negative integers including zero (0, 1, 2, 3, ...).

Front

What is an integer?

Back

Integers are the set of whole numbers that can be positive, negative, or zero (..., -3, -2, -1, 0, 1, 2, 3, ...).

Tags

CCSS.7.NS.A.1B

Front

What is a rational number?

Back

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

Tags

CCSS.5.NBT.A.2

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it is a non-repeating, non-terminating decimal.

Tags

CCSS.8.NS.A.1

Front

What is the square root of 3 approximately between?

Back

The square root of 3 is approximately between 1 and 2.

Tags

CCSS.8.NS.A.2

Front

Is -1 a whole number?

Back

False, -1 is not a whole number.

Front

Is -1 an integer?

Back

True, -1 is an integer.

Tags

CCSS.6.NS.C.6A

Front

Is -1 a rational number?

Back

True, -1 can be expressed as -1/1.

Tags

CCSS.6.NS.C.7C