Unit 5 Lesson 3 Practice Problems 3 & 4

Front

What is the result of adding two negative numbers?

Back

When you add two negative numbers, the result is always negative. For example, -9.2 + -7 = -16.2.

Front

What is the value of the expression: ⅖ - ⅗?

Back

The value of the expression ⅖ - ⅗ is -⅕.

Front

How do you subtract a negative number from another negative number?

Back

To subtract a negative number, you add its positive equivalent. For example, (-4⅜) - (-1¼) = -4⅜ + 1¼ = -3⅛.

Front

What is the tax rate on non-food items in the given scenario?

Back

The tax rate on non-food items is 5%.

Front

If a shopper pays $0.19 in tax on a total of $8.25 before tax, how do you find the cost of a specific item?

Back

To find the cost of a specific item, subtract the total cost of the other items from the total before tax.

Front

What is the result of the expression: 16.2 + -8.4?

Back

The result of the expression 16.2 + -8.4 is 7.8.

Front

Define a negative number.

Back

A negative number is a number that is less than zero, often used to represent a loss or a deficit.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

What is the process of finding a common denominator in fractions?

Back

Finding a common denominator involves identifying a number that is a multiple of the denominators of the fractions you are working with.

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 over the original denominator.