Inequalities, Volume, and Rounding Concepts

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other. For example, 3 < 5 means 3 is less than 5.

Front

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

Back

If a number A is greater than a number B, it means A is larger than B. For example, 7 > 5 means 7 is greater than 5.

Front

What is volume?

Back

Volume is the amount of space an object occupies, usually measured in cubic units such as liters, cubic centimeters, or cubic meters.

Front

How do you calculate the volume of a rectangular prism?

Back

The volume of a rectangular prism is calculated by multiplying its length, width, and height: Volume = length × width × height.

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler but still close to its original value. For example, rounding 4.6 to the nearest whole number gives 5.

Front

What is the sum of 27.5 and 3.09?

Back

The sum of 27.5 and 3.09 is 30.59.

Front

What does it mean to multiply by a power of ten?

Back

Multiplying by a power of ten shifts the decimal point to the right. For example, multiplying 1.973 by 10^7 moves the decimal point 7 places to the right.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as a ratio of two numbers, such as 1/2, where 1 is the numerator and 2 is the denominator.

Front

How do you add fractions with different denominators?

Back

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

Front

What is the expanded form of a number?

Back

The expanded form of a number shows the value of each digit. For example, 238 can be written as (2 x 100) + (3 x 10) + (8 x 1).