1.
Acute angles are always ________________________
Correct Answer
C. Less than 90 degrees.
Explanation
Acute angles are angles that measure less than 90 degrees. This means that they are smaller than a right angle, which measures exactly 90 degrees. Straight angles, on the other hand, measure exactly 180 degrees, so they are larger than acute angles. Therefore, the correct answer is that acute angles are always less than 90 degrees.
2.
A right angle is always exactly_________________________
Correct Answer
B. 90 degrees-- makes a square
Explanation
A right angle is always exactly 90 degrees because it is defined as the angle formed when two lines intersect and create four 90-degree angles, making a square. This is a fundamental concept in geometry, where a right angle is a crucial element in various geometric shapes and calculations.
3.
An obtuse angle is always __________________________
Correct Answer
B. More than a right angle
Explanation
An obtuse angle is always more than a right angle because a right angle measures exactly 90 degrees. An obtuse angle is greater than 90 degrees and less than 180 degrees.
4.
A pentagon is a ____________________________________
Correct Answer
B. Polygon with 5 sides.
Explanation
A pentagon is a polygon with 5 sides.
5.
A pound is a _____________________________________
Correct Answer
A. A customary unit of weight
Explanation
A pound is a customary unit of weight commonly used in the United States and some other countries. It is equivalent to 16 ounces or approximately 0.4536 kilograms. This unit is typically used to measure the weight of objects such as groceries, animals, or people. It is derived from the Latin word "libra," which means balance or scales.
6.
A product is ______________________________________________
Correct Answer
A. The result when two numbers are multiplied.
Explanation
A product is the result when two numbers are multiplied.
7.
A difference is ____________________________________________
Correct Answer
B. Found by comparing numbers or subtracting.
Explanation
The answer "found by comparing numbers or subtracting" is correct because when we compare numbers, we can determine if one number is greater, smaller, or equal to another. Subtracting numbers also helps us find the difference between them by finding the numerical gap or distance between the two values. Both methods involve comparing or subtracting numbers to find the difference.
8.
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 is because a sum refers to the result of adding two or more numbers together. It represents the total amount obtained by combining the addends.
9.
Graphs are created to __________________________________________
Correct Answer
A. Show data (line, pie, circle, bar)
Explanation
Graphs are created to show data in a visual and organized manner. They are used to present information in a clear and concise way, allowing for easy understanding and analysis of the data. Different types of graphs such as line graphs, pie charts, circle graphs, and bar graphs are utilized depending on the type of data and the purpose of the presentation.
10.
Which word means the same as "round"?
Correct Answer
A. Estimate
Explanation
The word "estimate" means to make an approximate calculation or judgment. Similarly, the word "round" can also mean to approximate or make something whole or complete. Therefore, "estimate" is the word that means the same as "round".
11.
Which property states that the "sum of any number and zero is that number"? 7 + 0= 7
Correct Answer
C. Identity Property of Addition
Explanation
The Identity Property of Addition states that the sum of any number and zero is that number. In this case, 7 + 0 = 7, which confirms the property.
12.
What property states that "the order of the addends or factors does not change the sum or product"? Ex. 6+7= 7+6
Correct Answer
B. Commutative Property
Explanation
The commutative property states that the order of the addends or factors does not change the sum or product. This means that you can add or multiply numbers in any order and still get the same result. In the given example, 6+7 is equal to 7+6, which demonstrates the commutative property of addition.
13.
The value is given to a digit based on its location: tens, hundreds, ones, etc.
Correct Answer
B. Place value
Explanation
The given answer is "place value". Place value refers to the value assigned to a digit based on its position or location within a number. It helps determine the actual value of the digit within the number. For example, in the number 532, the digit 5 has a place value of 500 because it is in the hundreds place, the digit 3 has a place value of 30 because it is in the tens place, and the digit 2 has a place value of 2 because it is in the ones place.
14.
The amount a container can hold:
Correct Answer
A. Capacity
Explanation
Capacity refers to the amount that a container can hold. It is a measure of the volume or quantity that can be accommodated within a given space. In this context, both length and temperature are not directly related to the amount a container can hold. Length refers to the measurement of distance, while temperature measures the degree of hotness or coldness. Therefore, capacity is the correct answer in this case.
15.
Numbers or letters that repeat or grow.
Correct Answer
C. Pattern
Explanation
The term "pattern" refers to a sequence of numbers or letters that repeat or grow in a predictable manner. In this context, it can be inferred that the question is asking for a word that describes a sequence or arrangement that follows a specific pattern. Therefore, "pattern" is the correct answer.