Complex Numbers Practice

A Complex Number is a number that combines a ___ number and an ___ number.

• Real

• Imaginary

• Whole

• Natural

Tags

CCSS.HSN.CN.A.1

Organize these options into the right categories

Groups:

(a) Real Numbers

,

(b) Imaginary Numbers

,

(c) Complex Numbers

• 10

• -6

• -5i

• 2i

• 6-7i

• -4+i

• (2+i) + (4 - 8i)

Tags

CCSS.HSN.CN.A.2

Simplify √-28

• -√28
• -2i√7
• 2i√7
• 28i

Simplify -√-48

• 4i√3
• -4i√3
• i√48
• -48i

Simplify √-23

• -√23
• 23i
• 23
• i√23

√-36

• 6
• -6
• -6i
• 6i

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSN.CN.A.2

Simplify:
(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Tags

CCSS.HSN.CN.A.2

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSN.CN.A.2