Middle School Math

2- Step Equations

100

Solve For:

-4x+5= -15

X= 5

200

Solve For:

-1 = 3x+7

X= -2

300

3x - 4= 26

X= 10

400

Solve For:

x+4/3= 5

X= 11

500

Solve For:

2/3x - 3= 13

X= 24

Converting Fractions

100

50/100

.50

200

5/8

0.625

300

7/20

0.35

400

4 27/125

4.216

500

1 19/25

1.76

Converting Decimals

100

0.08

2/25

200

0.008

1/125

300

0.6

3/5

400

5.216

5 27/125

500

2.2

2 1/5

Area & Perimeter

100

The formula for Area of a Rectangle

A= length(l) x width(w)

200

The formula for area of a triangle

A= base(b) x height(h)/ 2

300

If a rectangle has a width of 9 and length of 7 what is the perimeter of the rectangle

P= 32

400

Solve for area of a triangle:

Base: 30ft

Height: 12ft

A= 180

500

Solve for perimeter of a triangle:

A Side: 6ft

B Side: 8ft

C Side: 10ft 

P = 24

Radius & Circumference

100

What is the formula for Circumference of a Circle when given the diameter?

C= pi x diameter 

200

If given the radius, how do you solve for the diameter? 

d= radius x 2

300

Solve for circumference of the circle, with a diameter of 10cm.

C= 31.4

400

Solve for diameter:

R= 26

D= 52

500

Solve for Circumference:

Radius: 12cm

C= 75.36cm