Adding, Subtracting, Multiplying Complex Numbers

9th - 12th Grade

•

15 Qs

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Adding, Subtracting, Multiplying Complex Numbers

Quiz

•

Mathematics

•

9th - 12th Grade

•

Medium

•

CCSS

HSN.CN.A.2, HSN.CN.C.8, HSN.CN.A.1

Standards-aligned

Catherine Lang

Used 10+ times

FREE Resource

15 questions

Show all answers

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

$2\ +\ 10i$

$2\ +\ 10i^2$

$2$

$-8$

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

$5\ -16i$

$-5\ +\ 16i$

$5\ -\ 12i$

$-5\ +\ 12i$

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

5 mins • 12 pts

(5-i)(5-i)

15-8i

24+10i

24-10i

Tags

CCSS.HSN.CN.C.8

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify: $\left(1\ +\ 3i\right)\ +\ \left(7\ -\ 2i\right)$

8+i

i+8

8+5i

5i+8

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

$17\ +\ 3i$

$12\ +\ 3i^2$

$17\ -2i$

$12\ +\ 3i$

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(-3-i)(6-i)

-21-7i

-19-3i

-15-5i

-17-9i

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

$6\ +6i$

$4\ +\ 2i$

$6\ -\ 6i$

$4\ -\ 2i$

Tags

CCSS.HSN.CN.A.2

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Adding, Subtracting, Multiplying Complex Numbers

15 questions

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

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

(5-i)(5-i)

Simplify: $\left(1\ +\ 3i\right)\ +\ \left(7\ -\ 2i\right)$

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

(-3-i)(6-i)

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

What is the standard form for a complex number?

(2i)(3i)

(-3-i)(6-i)

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Adding, Subtracting, Multiplying Complex Numbers

15 questions

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

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

(5-i)(5-i)

Simplify: (1 + 3i) + (7 − 2i)\left(1\ +\ 3i\right)\ +\ \left(7\ -\ 2i\right)(1 + 3i) + (7 − 2i)

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

(-3-i)(6-i)

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

What is the standard form for a complex number?

(2i)(3i)

(-3-i)(6-i)

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

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

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

Simplify: $\left(1\ +\ 3i\right)\ +\ \left(7\ -\ 2i\right)$

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

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