Unit 1 Test: Pre-Algebra (Final)

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS is often used: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Evaluate the expression: 15 x 3 - (8 - 3)

Back

40

Front

What is the result of evaluating the expression: -15 - (-20) - 40?

Back

-35

Front

Evaluate the expression: 80 - 4² × 2

Back

48

Front

What property of multiplication is shown by the equation: (4a · 1)5b = 4a(1 · 5b)?

Back

Associative Property of Multiplication.

Front

How do you order integers from least to greatest?

Back

To order integers from least to greatest, compare their values and arrange them in ascending order.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |-6| = 6.

Front

What is the identity property of multiplication?

Back

The identity property of multiplication states that any number multiplied by 1 remains unchanged. For example, 7 x 1 = 7.

Front

What is the zero property of multiplication?

Back

The zero property of multiplication states that any number multiplied by 0 equals 0. For example, 5 x 0 = 0.

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the addends does not change the sum. For example, 3 + 5 = 5 + 3.