1.
Integers are whole numbers that describe opposite ideas in mathematics.
Correct Answer
A. True
Explanation
Integers are indeed whole numbers that include both positive and negative numbers, as well as zero. They are used to represent quantities that can be counted or measured, such as the number of objects or the temperature. Therefore, the statement "Integers are whole numbers that describe opposite ideas in mathematics" is true.
2.
Absolute value measures the:
Correct Answer
B. Distance of a number to 0
Explanation
Absolute value measures the distance of a number from 0 on the number line. It gives the magnitude or size of a number without considering its sign. For example, the absolute value of -5 is 5, as it is 5 units away from 0 on the number line. Similarly, the absolute value of 5 is also 5, as it is also 5 units away from 0. Therefore, the correct answer is the distance of a number to 0.
3.
What is used to represent about sitting at the sea level?
Correct Answer
C. 0
Explanation
The answer is 0 because sitting at sea level means being at the same elevation as the surface of the sea, which is considered the baseline or reference point for measuring elevation. Therefore, the representation of sitting at sea level is 0, as there is no positive or negative deviation from this reference point.
4.
What integer represents a loss of 10 pounds?
Correct Answer
B. -10
Explanation
The integer -10 represents a loss of 10 pounds because when a value is negative, it indicates a decrease or loss. In this case, a loss of 10 pounds is represented by the negative value of -10.
5.
Which would NOT be represented by a negative number?
Correct Answer
D. An increase in pay rate
Explanation
An increase in pay rate would not be represented by a negative number because it implies a positive change or growth in income. A negative number is typically used to represent a decrease or loss in value, such as below sea level, a decrease in temperature, or a withdrawal of money.
6.
Monday's temperature was -3°C and Tuesdays was -5°C. Which day was colder?
Correct Answer
C. Tuesday
Explanation
Tuesday was colder because it had a lower temperature of -5°C compared to Monday's temperature of -3°C.
7.
Which of the following are arranged from least to greatest?
Correct Answer
D. -8, -5, -3, -1
Explanation
The given answer is correct because it correctly arranges the numbers in ascending order from least to greatest. The numbers -8, -5, -3, and -1 are arranged in increasing order, with -8 being the smallest and -1 being the largest. Therefore, this sequence is arranged from least to greatest.
8.
Which symbol will make the sentence true?
| 4 - 3 | ___ 1
Correct Answer
C. =
Explanation
The symbol "=" will make the sentence true. By subtracting 3 from 4, we get a result of 1, and since the equal sign indicates that both sides of the equation are equal, the sentence becomes true.
9.
Arrange the given set of integers in ascending order.
{ -1, 3, -5, -7 }
Correct Answer
B. { -7, -5, -1, 3 }
Explanation
The given set of integers is {-1, 3, -5, -7}. To arrange them in ascending order means to sort them from smallest to largest. The correct answer is {-7, -5, -1, 3} because it follows the ascending order. -7 is the smallest integer, followed by -5, then -1, and finally 3, which is the largest integer in the set.