Chapter 3 Test Review

Front

What is the prime factorization of 42?

Back

The prime factorization of 42 is 7 x 3 x 2.

Front

Simplify the expression 3(1 - 2x) + 7 and evaluate for x=2.

Back

The simplified expression is 10 - 6x, and for x=2, it evaluates to -2.

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is either five or zero.

Front

Find the multiplication expression for 8^4.

Back

The multiplication expression for 8^4 is 8 x 8 x 8 x 8.

Front

Simplify \frac{6ab}{4b}.

Back

The simplified expression is \frac{3a}{b}.

Front

What is a number tree in prime factorization?

Back

A number tree is a visual representation used to break down a number into its prime factors.

Front

What is the value of x in the equation 2x + 3 = 11?

Back

The value of x is 4.

Front

What does it mean for a number to be prime?

Back

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

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated as length x width.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.