Math Review 3- 8th math

Front

What are Rational Numbers?

Back

Rational numbers are numbers that can be expressed as a fraction or ratio of two integers, where the denominator is not zero.

Front

What is the formula to calculate the discount amount?

Back

Discount Amount = Original Price × Discount Rate.

Front

How do you calculate the percent of change?

Back

Percent of Change = (New Value - Old Value) / Old Value × 100.

Front

Is 0 a Natural Number?

Back

False. Natural numbers are positive integers starting from 1.

Front

What is the expression for the sum of 3 times a number and 7?

Back

3n + 7.

Front

What are Natural Numbers?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).

Front

What are Integers?

Back

Integers are whole numbers that can be positive, negative, or zero (e.g., -3, -2, -1, 0, 1, 2, 3).

Front

What are Irrational Numbers?

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction, such as √2 or π.

Front

What is a Percent?

Back

A percent is a ratio expressed as a fraction of 100.

Front

How do you find the total cost after applying a discount?

Back

Total Cost = Original Price - Discount Amount.