Math Review

Front

What is the order of operations in math?

Back

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

Front

How do you solve the expression: 30 - (6-2) x 4?

Back

First, solve the parentheses: 6 - 2 = 4. Then, multiply: 4 x 4 = 16. Finally, subtract: 30 - 16 = 14.

Front

What is the formula to calculate the total cost of renting a car?

Back

Total Cost = Daily Rate x Number of Days + One-time Fees. For example, if the daily rate is $47 and the one-time fee is $54, the total for 6 days is: 47 x 6 + 54 = $336.

Front

How do you round a number to the nearest thousand?

Back

To round to the nearest thousand, look at the hundreds digit. If it is 5 or more, round up. If it is 4 or less, round down. For example, 3,457,890 rounds to 3,458,000.

Front

What is the decimal representation of 6 x 1,000 + 2 x 10 + 3 x 1/10 + 5 x 1/1000?

Back

The decimal representation is 6,020.305.

Front

How many inches are in a foot?

Back

There are 12 inches in a foot.

Front

What is the conversion from feet to inches for a wall that is 29 feet long?

Back

To convert feet to inches, multiply the number of feet by 12. So, 29 feet x 12 = 348 inches.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby specified value, making it simpler but keeping it close to the original value.

Front

What is the value of the expression: 5 + 3 x 2?

Back

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

Front

What is a one-time fee?

Back

A one-time fee is a charge that is paid only once, not recurring, such as a service charge or initial setup fee.