5th Math Review

Front

What is the process to subtract fractions with different denominators?

Back

To subtract fractions with different denominators, first find a common denominator, convert each fraction to an equivalent fraction with that denominator, then subtract the numerators and simplify if necessary.

Front

How do you calculate the cost of multiple copies if the cost per copy is known?

Back

To calculate the cost of multiple copies, multiply the cost per copy by the total number of copies.

Front

What does the symbol '>' represent in mathematical comparisons?

Back

The symbol '>' means 'greater than' and is used to compare two values.

Front

How do you find the volume of a rectangular prism?

Back

The volume of a rectangular prism is found by multiplying its length, width, and height (Volume = length × width × height).

Front

What is the rule for rounding numbers to the nearest tenth?

Back

To round a number to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is the least common multiple (LCM) and how is it used in fraction operations?

Back

The least common multiple (LCM) is the smallest multiple that two or more numbers share. It is used to find a common denominator when adding or subtracting fractions.

Front

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

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = length × width).

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that sum over the original denominator.

Front

What is the difference between a proper fraction and an improper fraction?

Back

A proper fraction has a numerator that is less than its denominator, while an improper fraction has a numerator that is greater than or equal to its denominator.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common divisor (GCD).