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Imaginary and Complex Numbers

Authored by KARA BROWN

Mathematics

8th - 9th Grade

CCSS covered

Used 16+ times

Imaginary and Complex Numbers
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13 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 14490+16+10\sqrt{144}-\sqrt{-90}+\sqrt{16}+\sqrt{-10}  

 162i1016-2i\sqrt{10}  

 16+4i1016+4i\sqrt{10}  

 16+3i1016+3i\sqrt{10}  

 122i1012-2i\sqrt{10}  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

CCSS.HSN.CN.B.4

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 36+36+16+9-\sqrt{36}+\sqrt{-36}+\sqrt{16}+\sqrt{-9}  

 29i-2-9i  

 10+9i10+9i  

 2+9i-2+9i  

 109i-10-9i  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 100+9+916-\sqrt{100}+\sqrt{-9}+\sqrt{9}-\sqrt{-16}  

13 +7i

-7 - 7i

13 - i

-7 - i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Write 192\sqrt{-192}  in simplest form.

 8i38i\sqrt{3}  

8i + 3

 4i124i\sqrt{12}   

 4i+124i+\sqrt{12}  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Write 10\sqrt{-10} in simplest radical form.  

 i10-i\sqrt{10}  

 i10i\sqrt{10}  

 52-\sqrt{5}\sqrt{2}  

 521\sqrt{5}\sqrt{2}\sqrt{-1}  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Write 200\sqrt{-200} in simplest radical form. 

 585\sqrt{-8}  

 5i85i\sqrt{8}  

 10i210i\sqrt{2}  

 10210\sqrt{-2}  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

CCSS.HSN.RN.A.1

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify the expression to a + bi form: (2i)(4+8i)\left(2-i\right)-\left(-4+8i\right)  

6 - 9i

-2 + 7i

6 + 7i

-2 - 9i

Tags

CCSS.HSA.APR.A.1

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