7th Grade Math PSSA Review (18 - 19)

Front

What is the process for converting 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 the result over the original denominator.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Front

What is the formula for calculating the cost per pound?

Back

The cost per pound can be calculated by dividing the total cost by the total weight in pounds.

Front

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

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator over the original denominator.

Front

What is the value of 1/3 as a decimal?

Back

1/3 as a decimal is approximately 0.333.

Front

What is the process for multiplying fractions?

Back

To multiply fractions, multiply the numerators together and multiply the denominators together. Simplify if possible.

Front

How do you find the average of a set of numbers?

Back

To find the average, add all the numbers together and divide by the total count of numbers.

Front

What is the difference between a rational number and an irrational number?

Back

A rational number can be expressed as a fraction of two integers, while an irrational number cannot be expressed as a simple fraction.

Front

How do you solve a word problem involving ratios?

Back

To solve a word problem involving ratios, identify the quantities being compared, set up a ratio, and use cross-multiplication if necessary to find the unknown.

Front

What is the formula for finding the total cost when given a unit price and quantity?

Back

The total cost can be found by multiplying the unit price by the quantity.