Review Of Pre Algebra

What is the first step in solving the expression: -12 ÷ 6 (-3) + 8?

• Addition is the first step.

• Multiplication is the first step.

• Division is the first step.

• Subtraction is the first step.

Identify the error in the calculation: 5 - 3 + 2 = 5 - 5 = 0.

• Addition was done first; subtraction should have been done first.

• Subtraction was done first; addition should have been done first.

• The calculation is correct; no error exists.

• The numbers were incorrectly added together.

What is the greatest common factor (GCF) of 12 and 16?

• 2

• 4

• 6

• 8

Which number is a factor of 23?

• 1

• 2

• 3

• 4

What is the difference between a prime number and a composite number?

• A prime number has exactly one positive divisor, while a composite number has two.

• A prime number has exactly two distinct positive divisors, while a composite number has more than two.

• A prime number can be negative, while a composite number is always positive.

• A prime number is always even, while a composite number is always odd.

What is the definition of an integer?

• A whole number that can be positive, negative, or zero.

• A decimal number that can be positive or negative.

• A number that includes fractions and decimals.

• A number that is always positive.

What is the order of operations in mathematics?

• Addition, Subtraction, Multiplication, Division

• Parentheses, Exponents, Addition, Subtraction

• Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)

• Multiplication, Division, Addition, Exponents

What does GCF stand for?

• Greatest common factor

• Greatest common frequency

• Generalized common function

• Global common factor

What is the definition of a factor?

• A factor is a number that divides another number without leaving a remainder.

• A factor is a number that is multiplied by another number to get a product.

• A factor is a number that is added to another number to get a sum.

• A factor is a number that is subtracted from another number to get a difference.

What is the definition of a prime number?

• A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

• A prime number is any integer that is divisible by 2.

• A prime number is a number that can be expressed as the sum of two other prime numbers.

• A prime number is a natural number that is less than 1.