BIM Chapter 3 Test

Front

Evaluate the expression when a=6 and b=8: 4 + a

Back

10

Front

Write the phrase as an expression: twice a number x

Back

2x or 2(x)

Front

Write the phrase as an expression: 25 more than 50

Back

50 + 25

Front

Evaluate the expression when a=6 and b=8: a - 6

Back

0

Front

Write the phrase as an expression: 40 divided by 5

Back

40 ÷ 5

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators (like +, -, ×, ÷) that represents a value.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting numbers for variables.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation does.

Front

What is the order of operations in mathematics?

Back

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

Front

How do you write 'the sum of a and b' as an expression?

Back

a + b