Adding and Subtracting Complex Numbers

Adding and Subtracting Complex Numbers

9th - 12th Grade

16 Qs

quiz-placeholder

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Adding and Subtracting Complex Numbers

Adding and Subtracting Complex Numbers

Assessment

Quiz

Mathematics

9th - 12th Grade

Medium

CCSS
HSN.CN.A.2, HSN.CN.A.1, HSN.CN.B.4

+1

Standards-aligned

Created by

Meredith Priest

Used 85+ times

FREE Resource

16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify the expression:
 (1 + 5i) + (1  5i)\left(1\ +\ 5i\right)\ +\ \left(1\ -\ 5i\right)  

 2 + 10i2\ +\ 10i  

 2 + 10i22\ +\ 10i^2  

 22  

 8-8  

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify the expression:
 (8 + 9i) + (4  6i)\left(8\ +\ 9i\right)\ +\ \left(4\ -\ 6i\right)  

 17 + 3i17\ +\ 3i  

 12 + 3i212\ +\ 3i^2  

 17 2i17\ -2i  

 12 + 3i12\ +\ 3i  

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify the expression:
 (5 + 14i)  (10 + 2i)\left(5\ +\ 14i\right)\ -\ \left(10\ +\ 2i\right)  

 5 16i5\ -16i  

 5 + 16i-5\ +\ 16i  

 5  12i5\ -\ 12i  

 5 + 12i-5\ +\ 12i  

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify the expression:
 (5 + 4i)  (1  2i)\left(5\ +\ 4i\right)\ -\ \left(-1\ -\ 2i\right)  

 6 +6i6\ +6i  

 4 + 2i4\ +\ 2i  

 6  6i6\ -\ 6i  

 4  2i4\ -\ 2i  

Tags

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Another way to express 1\sqrt{-1}  is?

1

-1

i

0

Tags

CCSS.HSN.CN.A.1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

10

-10

+10i

-10i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

CCSS.HSN.CN.B.5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What does i=  ?
1
-1
√-1
√1

Tags

CCSS.HSN.CN.A.1

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