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Adding and subtracting complex numbers

Authored by Wayground Content

Mathematics

9th - 12th Grade

CCSS covered

Adding and subtracting complex numbers
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20 questions

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1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

 (84i)(3+7i)=\left(8-4i\right)-\left(3+7i\right)=  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Add: (2 + 3i) + (2 - 3i)

4 + 6i
4
13
4 + 9i

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(4 - 19i) - (12 - 21i)

-8 + 2i
46 + 12i
21 - 12i
-4 - 8i

Tags

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify:

(1 + 6i) + (6 - 2i) - (-7 + 5i)

14+i

13+i

14-i

13-2i

Tags

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify: -5(-7 + 7i) + 2(6 - 6i)

47 - 47i

47 - 23i

23 + 47i

23 - 23i

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify  (64i)+(3+5i)\left(6-4i\right)+\left(-3+5i\right)  

 3+i3+i  

 9+i9+i  

 39i3-9i  

 99i9-9i  

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify:

(-6 - 2i) + (6 - 5i)

7i

-7i

12-7i

-12+7i

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