5th Grade Math STAAR Review

Front

What is the formula to find the amount of fruit in each serving if you have a total weight and number of servings?

Back

To find the amount of fruit in each serving, divide the total weight of the fruit by the number of servings. Formula: Amount per serving = Total weight / Number of servings.

Front

How do you convert expanded notation to a standard number?

Back

To convert expanded notation to a standard number, add the values of each term together. For example, (9 x 10) + (5 x 0.01) = 90 + 0.05 = 90.05.

Front

What are prime numbers?

Back

Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves. Examples: 2, 3, 5, 7, 11.

Front

How do you find the difference between two fractions?

Back

To find the difference between two fractions, convert them to a common denominator, then subtract the numerators. Example: 7/10 - 1/2 = 7/10 - 5/10 = 2/10 = 1/5.

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions. It allows you to add, subtract, or compare fractions.

Front

How do you find the least common multiple (LCM) of a set of numbers?

Back

To find the LCM, list the multiples of each number and find the smallest multiple that is common to all lists.

Front

What is the process for dividing a fraction by a whole number?

Back

To divide a fraction by a whole number, multiply the denominator of the fraction by the whole number. Example: 1/2 ÷ 3 = 1/(2*3) = 1/6.

Front

What is the relationship between fractions and decimals?

Back

Fractions can be converted to decimals by dividing the numerator by the denominator. Example: 1/4 = 0.25.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Front

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

Back

Area = Length x Width.