1st Semester Math Review

Front

What is the process to find how many sections can be cut from a piece of wood?

Back

To find how many sections can be cut from a piece of wood, divide the total length of the wood by the length of each section. For example, if a piece of wood is 33.6 feet long and each section is 4.2 feet, the calculation is 33.6 ÷ 4.2 = 8 sections.

Front

How do you compare two negative numbers?

Back

To compare two negative numbers, the number that is less negative is greater. For example, -3 is greater than -5 because it is closer to zero.

Front

What are coordinates in a 2D plane?

Back

Coordinates are a pair of numbers that define a point's position on a 2D plane, represented as (x, y). The first number is the x-coordinate (horizontal position) and the second is the y-coordinate (vertical position).

Front

How do you calculate the price per ounce?

Back

To calculate the price per ounce, divide the total price by the total number of ounces. For example, if a jar costs $2.99 and contains 30 ounces, the price per ounce is $2.99 ÷ 30 = $0.10.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another. For example, the ratio of boys to total students in a class with 8 boys and 14 girls is 8:22.

Front

What is the formula for finding the total number of students in a class?

Back

The total number of students in a class can be found by adding the number of boys and girls together. For example, if there are 8 boys and 14 girls, the total is 8 + 14 = 22 students.

Front

What does it mean for a number to be greater than another number?

Back

A number is greater than another number if it is further to the right on the number line. For example, -3 is greater than -5.

Front

How do you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both parts of the ratio by their greatest common divisor (GCD). For example, the ratio 8:22 can be simplified to 4:11.

Front

What is the significance of the origin in a coordinate plane?

Back

The origin is the point (0, 0) in a coordinate plane where the x-axis and y-axis intersect. It serves as a reference point for all other points.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). For example, 1/4 = 0.25.