complex numbers practice

Authored by C Blomgren

Mathematics

9th - 12th Grade

CCSS covered

Used 5+ times

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10 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify

$2+4i$

$12-3i$

$11-3i$

$5+4i$

Tags

CCSS.HSN.CN.A.2

DROPDOWN QUESTION

2 mins • 1 pt

In the expression $7-5i$ , 7 is the (a) part.

real

complex

counting

Tags

CCSS.HSN.CN.A.1

GRAPHING QUESTION

2 mins • 2 pts

$-4+2i$
$5-3i$

Tags

CCSS.HSN.CN.A.2

DRAG AND DROP QUESTION

1 min • 1 pt

In the complex number $-7\ +5i$ , $-7$ is the (a) part and $5i$ is the (b) part.

real

imaginary

complex

simple

counting

Tags

CCSS.HSN.CN.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mulitply

$-70\ +280i$

$-70-280i$

$70+280i$

$70-280i$

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify

$-4+11i$

$-4-i$

$4-11i$

$4-i$

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Multiply and simplify

$8+6i$

$24+10i$

$3+4i$

$8-6i$

Tags

CCSS.HSN.CN.C.8

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify

$-3i$

$i$

$-2i$

-4i

Tags

CCSS.HSN.CN.A.3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify

$\frac{9i+9}{16}$

$\frac{45i+36}{82}$

$\frac{9i+9}{8}$

$\frac{15-12i}{41}$

Tags

CCSS.HSN.CN.A.3

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify

$-5-8i$

$-10i$

$-4i+8$

$-5i+8$

Tags

CCSS.HSN.CN.A.3

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complex numbers practice

Simplify

In the expression 7−5i7-5i7−5i , 7 is the ​ (a) ​ part.

−4+2i-4+2i−4+2i 5−3i5-3i5−3i

In the complex number −7 +5i-7\ +5i−7 +5i , −7-7−7 is the ​ (a) part and 5i5i5i is the ​ (b) part.

Mulitply

Simplify

Multiply and simplify

Simplify

Simplify

Simplify

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In the expression $7-5i$ , 7 is the (a) part.

$-4+2i$
$5-3i$

In the complex number $-7\ +5i$ , $-7$ is the (a) part and $5i$ is the (b) part.