7th Grade Math Review

Front

What is the process to convert a percentage to a fraction?

Back

To convert a percentage to a fraction, divide the percentage by 100 and simplify the fraction if possible.

Front

How do you simplify the expression 6 + 2(7x - 3)?

Back

Distribute the 2 to both terms in the parentheses: 6 + 14x - 6 = 14x.

Front

What is the formula to calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill amount by the tip percentage (in decimal form).

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.

Front

What is the total temperature change if the temperature drops 3 degrees each hour for 6 hours?

Back

The total temperature change is -18 degrees (3 degrees/hour * 6 hours = 18 degrees drop).

Front

What is the simplest form of the fraction 76/100?

Back

The simplest form of 76/100 is 19/25.

Front

What does it mean to simplify an expression in math?

Back

Simplifying an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

How do you calculate the total amount after adding a tip to a bill?

Back

To calculate the total amount after adding a tip, add the tip amount to the original bill amount.

Front

What is the significance of understanding percentages in real-life applications?

Back

Understanding percentages is crucial for calculating discounts, tips, interest rates, and other financial transactions.

Front

What is the relationship between fractions, decimals, and percentages?

Back

Fractions, decimals, and percentages are different ways to represent the same value; they can be converted from one form to another.