Ch 5 and 6 Review

Front

Which property is represented? 10(x + 8) = 10x + 80

Back

Distributive Property: This property states that a(b + c) = ab + ac.

Front

Evaluate 2a + 4b if a = 10 and b = 6

Back

44: Substitute a and b into the expression: 2(10) + 4(6) = 20 + 24 = 44.

Front

Which property is represented? 7(t + u) = 7t + 7u

Back

Distributive Property: This property allows you to distribute a multiplier across a sum.

Front

Evaluate (c-a)^b if a=2, b=3, c=4

Back

8: Substitute values: (4-2)^3 = 2^3 = 8.

Front

What do you do first in 12 ÷ 3 x 4?

Back

12 ÷ 3: According to the order of operations, division comes before multiplication.

Front

What is the Commutative Property?

Back

The Commutative Property states that changing the order of numbers in addition or multiplication does not change the result. (e.g., a + b = b + a).

Front

What is the Associative Property?

Back

The Associative Property states that the way numbers are grouped in addition or multiplication does not change the result. (e.g., (a + b) + c = a + (b + c)).

Front

Evaluate 5 + 3 x 2

Back

11: According to the order of operations, multiply first: 3 x 2 = 6, then add: 5 + 6 = 11.

Front

What is the order of operations?

Back

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

Front

What is a variable in mathematics?

Back

A variable is a symbol (like x or y) that represents an unknown value in an equation or expression.