1.
A sum is_____________________________________________________
Correct Answer
B. The total amount of two or more addends.
Explanation
The correct answer is "The total amount of two or more addends." This means that a sum refers to the result obtained when two or more numbers are added together. It represents the total or the combined value of the addends.
2.
A difference is ____________________________________________
Correct Answer
B. Found by comparing numbers or subtracting.
Explanation
The correct answer is "found by comparing numbers or subtracting." This is because when we compare numbers, we can determine which one is larger or smaller. Additionally, when we subtract one number from another, we can find the difference between them.
3.
A product is ______________________________________________
Correct Answer
A. The result when two numbers are multiplied.
Explanation
A product is the result when two numbers are multiplied. Multiplication is an arithmetic operation that combines two numbers to find their total value when they are multiplied together. The product represents the total value or quantity obtained from multiplying the two numbers.
4.
Parallel lines are always ____________________________________
Correct Answer
D. The same distance apart.
Explanation
Parallel lines are always the same distance apart. This is because parallel lines never meet or intersect each other. They maintain a constant distance between them, no matter how far they extend. This property of parallel lines is a fundamental concept in geometry and is used in various applications such as in construction, engineering, and navigation.
5.
A pound is a _____________________________________
Correct Answer
E. Standard unit for measuring weight.
Explanation
A pound is a standard unit for measuring weight. It is commonly used to measure the mass or heaviness of an object. The pound is part of the Imperial system of measurement, primarily used in the United States and a few other countries. It is equivalent to 16 ounces and is often abbreviated as "lb".
6.
A pentagon is a ____________________________________
Correct Answer
B. Polygon with 5 sides.
Explanation
A pentagon is a polygon with 5 sides. A polygon is a closed figure with straight sides, and a pentagon specifically has 5 sides.
7.
A right angle is always exactly_________________________
Correct Answer
B. 90 degrees
Explanation
A right angle is always exactly 90 degrees. This is a fundamental concept in geometry where a right angle is formed when two lines or line segments intersect each other at a 90-degree angle. It is a fixed measure and does not change. Other options such as 100 degrees, 45 degrees, and 10 degrees do not accurately represent a right angle.
8.
An obtuse angle is always __________________________
Correct Answer
B. More than 90 degrees.
Explanation
An obtuse angle is always more than 90 degrees because an obtuse angle is defined as an angle that is greater than 90 degrees but less than 180 degrees. It is larger than a right angle (90 degrees) but smaller than a straight angle (180 degrees).
9.
An angle is __________________________________
Correct Answer
A. Two lines meeting at a common point.
Explanation
The correct answer is "two lines meeting at a common point." This is because an angle is formed when two lines intersect or meet at a single point. The point of intersection is called the vertex of the angle. The two lines that form the angle are called the sides of the angle.
10.
Acute angles are always ________________________
Correct Answer
C. Less than 90 degrees.
Explanation
Acute angles are always less than 90 degrees because an acute angle is defined as an angle that measures less than a right angle (90 degrees). Therefore, by definition, any angle that is considered acute will always be less than 90 degrees.
11.
An algorithm is __________________________
Correct Answer
D. A step by step math plan to find an answer to a problem.
Explanation
An algorithm is a step-by-step math plan to find an answer to a problem. It is a set of instructions or a procedure that helps solve a specific problem or complete a task. Algorithms are commonly used in computer science and mathematics to solve complex problems efficiently. They provide a systematic approach and can be implemented using various programming languages.
12.
Probability is ________________________________
Correct Answer
A. The chance that a particular outcome will occur.
Explanation
Probability is the measure of the likelihood that a specific event or outcome will happen. It quantifies the chances or odds of an event occurring, ranging from 0 (impossible) to 1 (certain). It is a mathematical concept used to analyze and predict uncertain events, allowing us to make informed decisions based on the likelihood of different outcomes.
13.
Tally's are used to _______________________________
Correct Answer
C. Record data in a table or chart.
Explanation
Tally's are used to record data in a table or chart. This means that tally's are utilized as a method of keeping track of information and organizing it in a visual format. By using tally's, data can be easily recorded and analyzed, allowing for better understanding and interpretation of the information being collected.
14.
Graphs are created to __________________________________________
Correct Answer
A. Display complex information in an easy to read/visual format.
Explanation
Graphs are visual representations of data that allow for easy comprehension and analysis of complex information. They are designed to present data in a clear and concise manner, making it easier for individuals to understand patterns, trends, and relationships. By using visual elements such as charts, bars, and lines, graphs provide a visual format that simplifies the interpretation of data, enabling users to quickly grasp the main message or insights conveyed by the information presented.
15.
A googol is __________________________
Correct Answer
D. The numeral 1 followed by 100 zeros.
Explanation
A googol is a mathematical term representing the numeral 1 followed by 100 zeros. It is used to describe an extremely large number.