7th Grade Mid-term

Front

What is a number line?

Back

A number line is a straight line that represents numbers in a sequential order, allowing for the visualization of positive and negative values.

Front

What does it mean to add a negative number?

Back

Adding a negative number is equivalent to subtracting the absolute value of that number from the original number.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, 50% of 200 is 200 * 0.50 = 100.

Front

What is the formula for calculating total cost with a fixed entry fee and variable ride cost?

Back

Total Cost = Entry Fee + (Cost per Ride * Number of Rides).

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations.

Front

What is the value of a negative number multiplied by a positive number?

Back

The product of a negative number and a positive number is always negative.

Front

How do you find the total points from multiple items with negative values?

Back

Multiply the number of items by the value of each item, and the result will be negative if the value is negative.

Front

What is the relationship between distance, rate, and time?

Back

The relationship is expressed as Distance = Rate × Time.

Front

How do you convert miles per gallon to total gallons needed for a trip?

Back

To find total gallons needed, divide the total miles by miles per gallon. For example, for 1425 miles at 15 miles per gallon: 1425 / 15 = 95 gallons.

Front

What does it mean to represent a problem with an equation?

Back

Representing a problem with an equation involves translating a word problem into a mathematical expression that can be solved.