Math7

1. Which of the following numbers is NOT a rational number?

• 10
• 5/2

• 0.2222..

• 3.14161819...

. What is the definition of a rational number?

• A rational number is a number that can be expressed as a decimal.
• A rational number is a number that can be expressed as a whole number.
• A rational number is a number that can be expressed as an irrational number.
• A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, where q is not equal to zero.

. Which of the following fractions is equivalent to 0.75?

• 2/3
• 4/5
• 3/4
• 1/2

Which of the following numbers is a rational number?

• 5/0

• 0.123...

• 2/9

What is the decimal representation of the rational number 3/5?

• 0.3
• 0.4
• 0.5
• 0.6

What is the opposite of a rational number?

• integer
• irrational number
• natural number
• whole number

Which of the following is true about adding two positive integers?

• The result can be a negative integer or zero.
• The result is always zero.
• The result is always a negative integer.
• The result is always a positive integer.

What is the product of 5 and -3?

• -15
• -8
• 8
• 15

When dividing a positive integer by a negative integer, the result is always:

• negative
• undefined
• zero
• positive

What is the value of 8 + (-5)?

• 2
• 10
• -13
• 3