8th Grade Math

Multiple Step Equations

100

5x(7-9x)=26x+9

x=-0.25

200

6x-2/4x=5-23x

x=0.18

300

4x-(10-2x)=2x-22

x=-3

400

7-9x=2(4x-8)

x=1.35

500

7x(2-8x)-1=2(3x-3)+9

x=-0.08

Inequalities

100

-8x+3>6x-98

x<7.21

200

-9+2x(2-6x)>12-x

x<-3

300

7x-8<4(2x-2)

x>0

400

3(2x-2)>2-2(8-2x)

x>-4

500

5x(2-2)<21-6(2-6x)

x>-0.25

Circumference

100

What is the circumference of a circle with a diameter of 5in

15.7in

200

What is the circumference of a circle with a radius of 9in

56.52in

300

What is the circumference of a semi-circle with a diameter of 4cm

6.28cm

400

What is the circumference of a semi-circle with a radius of 6m

18.84m

500

What is the circumference of a circle with a radius of 21km

131.88km

Volume

100

What is the volume of a rectangular prism with a length of 5in, a width of 4in, and a height of 13in

260in cubed

200

What is the volume of a rectangular prism with a length of 5in, a width of 3.5in, and a height of 14in

245in cubed

300

What is the volume of a rectangular prism with a length of 9in, a width of 3in, and a height of 33in

891in cubed

400

What is the volume of a square triangle with a height of 5in, and a base length of 6in

60in cubed

500

What is the volume of a cone with a height of 5in, and a radius of 9in

423.9in cubed

Area

100

What is the area of a circle with a radius of 6in

113.04in squared

200

What is the area of a circle with a diameter of 9in

63.59in squared

300

What is the area of a parallelogram with a base of 6in, and a height of 13in

78in squared

400

What is the area of a circle with a radius of 35in

3846.5in squared

500

What is the area of a triangle with a base of 6in, and a height of 23in

69in squared