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Real and complex numbers Quiz

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Test your knowledge of real and complex numbers with our interactive quiz designed for grade 4-6 kids.
Select the right answer for below questions:

Question 1: Which of the following is a real number?
√(-9)
i
3/4
√(-1)
3/4

Question 2: Which of the following is a complex number?
5
-1
√(-16)
3/7
√(-16)

Question 3: Which of the following is a real number?
7i
√-9
1/2
√(-1)
1/2

Question 4: Which of the following is an imaginary number?
2
-3
0
5i
5i

Question 5: Which of the following is a real number?
√(-1)
2 - 3i
0.5 + 0.5i

Question 6: Which of the following is a complex number?
1
-5
√(-5)
2/3
√(-5)

Question 7: Which of the following is a real number?
-2i
√(-25)
4/5
e^iπ
4/5

Question 8: Which of the following is an imaginary number?
0
7
-√16
i
i

Question 9: Which of the following is a real number?
√(-36)
-2/3
3i
φ (phi)
-2/3

Question 10: Which of the following is a complex number?
9
-√49
0.5
4i
4i

Submit
Retry
{"qz1-861936":"3/4","qz1-861937":"√(-16)","qz1-861938":"1/2","qz1-861939":"5i","qz1-861940":"-π","qz1-861941":"√(-5)","qz1-861942":"4/5","qz1-861943":"i","qz1-861944":"-2/3","qz1-861945":"4i"}

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