6th Math Review

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, | -4 | = 4 and | 4 | = 4.

Front

How do you convert a percentage to a fraction?

Back

To convert a percentage to a fraction, divide the percentage by 100 and simplify if possible. For example, 30% = 30/100 = 3/10.

Front

What is three-eighths of a number?

Back

Three-eighths of a number means you multiply the number by 3/8. For example, for 32 songs, it is 32 * (3/8) = 12 songs.

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right to make it a whole number, and move the decimal point in the dividend the same number of places. Then divide as usual.

Front

What is the cost of 1 pound of an item if 3.49 pounds cost $19.54?

Back

To find the cost per pound, divide the total cost by the weight in pounds: $19.54 / 3.49 = $5.60 per pound.

Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width: Area = length × width.

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common divisor (GCD). For example, 4/8 simplifies to 1/2.

Front

What is the difference between a prime number and a composite number?

Back

A prime number has exactly two distinct positive divisors: 1 and itself. A composite number has more than two positive divisors.

Front

What is the order of operations in math?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). It is often remembered by the acronym PEMDAS.