Math 8 Quiz #1 Review

Select all Numbers that belong to the subset of Natural.

Answer explanation

Remember that Natural Numbers are positive, non-decimals and not 0.

Natural numbers are numbers that we count with.

Select all the numbers that fit in the subset of Integer.

Answer explanation

Recall that integers are non-decimals (meaning they cannot have a decimal).

Recall that you should simplify numbers to see if they are decimals or not to determine if the number is an integer.

• Real numbers

• Rational numbers

• Integers

• Whole numbers

• Natural numbers

Answer explanation

All numbers we encounter are real.

This is a terminating (ending) decimal. That makes it rational.

Because it is a decimal, it is not an integer.

• Rational number

• Integer

• Whole number

• Natural number

Answer explanation

0 terminates, making it rational.

It is not a decimal, so it is an integer.

It is not negative, so it is whole.

Zero is the only whole number that is not natural.

Which of the following is NOT an irrational number?

• Integer

• integer, real

• integer, whole, rational

• integer, rational, real

• natural, whole, integer, rational

• whole, integer, rational

• rational

• natural, whole, integer, rational, real

• Irrational number

• Natural number

• Rational number

• Real

Numbers that are ​non-decimals are called ​ (a)  

Numbers that are positive but not zero are ​ (b)  

Numbers that are non-terminating and non-repeating are ​ (c)  

• integers
• natural
• irrational
• whole
• rational
• real

Answer explanation

These are definitions you need to know! 😁

Select all the number sets that 30 belong to.

• Natural Numbers

• Whole Numbers

• Integers

• Rational Numbers

• Irrational Numbers