8th Grade Midterm Review

Exponents

100

9³ / 9

9²

200

3r • 4r² • r ³

12r⁶

300

b²/ b^-6

b⁸

400

3w³ • 8w⁴ • 9w²

216w⁹

500

( 3w² / 4w⁵ )³

27/ (64w⁹)

Scientific Notation

100

Write into standard form.

5.416 x 10⁹

5,416,000,000

200

Write in scientific notation.

0.000000077620

7.762 x 10^-8

300

Write the answer in scientific notation form.

(8.41 x 10^-5) - (7.9 x 10^-6)

7.62 x 10^-5

400

Write the answer in scientific notation form.

(7.8 x 10³) / (2 x 10⁴)

3.9 x 10^-1

500

Write the answer in scientific notation.

(4.3 x 10⁸) x (2.0 x 10⁶)

8.6 x 10¹⁴

Pythagorean Theorem

100

a= 9

b= 12

c= ?

c= 15

200

a= 7

b= 4

c= ?

√65

300

a= ?

b= 4

c= 5

a= 3

400

a= ?

b= 12

c= 13

a= 5

500

a= ?

b= 24

c= 25

a= 7

More Triangles

100

2 angles in a triangle add up to 170 degrees. What is the degree of the third angle?

10 degrees

200

2 angles in a triangle add up to 110 degrees. What is the degree of the third angle?

70 degrees

300

2 angles in a triangle add up to 162 degrees. What is the degree of the third angle?

18 degrees

400

2 angles in a triangle add up to 78 degrees. What is the degree of the third angle?

101 degrees

500

2 angles in a triangle add up to 200 degrees. What is the degree of the third angle?

Not possible. It's not a triangle, because there's only 180 degrees in a triangle.

Reflections

100

Reflect the coordinates over the Y axis.

A. (1,3)

B. (8,0)

C. (7,9)

A' (-1,3)

B' (-8,0)

C' (-7,9)

200

Reflect the coordinates over the X axis.

A. (-2,-5)

B. (-9,0)

C. (-8,-10)

A' (-2,5)

B' (-9,0)

C' (-8,10)

300

Reflect the coordinates over the X axis.

A. (1,0) 

B. (10,-5) 

C. (9,-6) 

D. (4,-9)

A' (1,0)

B' (10,5)

C' (9,6)

D' (4,9)

400

Reflect the coordinates about y = -x

A. (3,-1)

B. (8,0)

C. (9,-10)

A' (1,-3)

B' (0,-8)

C' (10,-9)

500

Reflect the coordinates over y = x.

A. (1,4)

B. (7,1)

C. (6,8)

D. (2,6)

A' (4,1) 

B' (1,7)

C' (8,6)

D' (6,2)