[quiz 1]_year 7_numbers Classification And Number Operation
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Questions and Answers
- 1.
What do you know about integers numbers?
- 2.
What is PEMDAS!
- 3.
Explain about number classification!
- 4.
Evaluate 120 : (8-2) + 15 =
- A.
18
- B.
25
- C.
28
- D.
35
Correct Answer
D. 35Explanation
The given expression can be simplified by first evaluating the parentheses. 8-2 equals 6. Then, adding 15 to 6 gives us 21. Finally, dividing 120 by 21 equals 5.714. Since none of the answer choices match this result, the correct answer is not available.Rate this question:
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- 5.
Evaluate (16 + 4) x (16 - 8 +2) =
- A.
198
- B.
200
- C.
250
- D.
20
Correct Answer
B. 200Explanation
The expression can be simplified using the order of operations, which states that we should first perform any calculations inside parentheses. Inside the first set of parentheses, 16 + 4 equals 20. Inside the second set of parentheses, 16 - 8 + 2 equals 10. Finally, we multiply 20 by 10 to get 200.Rate this question:
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- 6.
Zero is a natural number.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Zero is not considered a natural number. Natural numbers are typically defined as the positive integers starting from 1. Zero, on the other hand, represents the absence or lack of quantity, and is not considered a positive integer. Therefore, the statement that zero is a natural number is false.Rate this question:
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- 7.
Select the ones you like about '7' in number classification!
- A.
Rational numbers
- B.
irrational numbers
- C.
Integers numbers
- D.
Natural numbers
Correct Answer(s)
C. Integers numbers
D. Natural numbersExplanation
The number '7' belongs to the category of integers and natural numbers. Integers are whole numbers that include both positive and negative numbers, and natural numbers are positive whole numbers. Since '7' is a positive whole number and not a fraction or decimal, it falls under both classifications.Rate this question:
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- 8.
Select the ones you like about '-3' in number classification!
- A.
Integers
- B.
Natural
- C.
Whole
- D.
Rational
Correct Answer(s)
A. Integers
D. RationalExplanation
The number -3 is classified as an integer because it is a whole number that can be positive, negative, or zero. It is also classified as rational because it can be expressed as a fraction, -3/1.Rate this question:
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- 9.
The total cost of 8 schoolbags is Rp192.000,00. Find the total cost of 5 similar schoolbags.
- A.
Rp100.000,00
- B.
Rp120.000,00
- C.
Rp160.000,00
- D.
Rp220.000,00
Correct Answer
B. Rp120.000,00Explanation
If the total cost of 8 schoolbags is Rp192.000,00, we can find the cost of 1 schoolbag by dividing the total cost by the number of schoolbags. So, the cost of 1 schoolbag is Rp192.000,00 / 8 = Rp24.000,00. To find the cost of 5 similar schoolbags, we multiply the cost of 1 schoolbag by 5. Therefore, the total cost of 5 similar schoolbags is Rp24.000,00 * 5 = Rp120.000,00.Rate this question:
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Current Version
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Jul 30, 2023Quiz Edited by
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Jul 28, 2019Quiz Created by
Eli
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