Math Review

Negatives

100

-9 + -10

-19

200

-5 - (-12)

7

300

-5 + -3

-8

400

-5 - (-6)

1

500

-12 - (-15)

3

Miscellaneous

100

Which section should be done first in this equation?

8 + 6 ÷ 2 x 3 ÷ 7

6 ÷ 2

200

A quadrilateral with one pair of parallel sides is a _________________.

Trapezoid

300

When no sides are parallel, a quadrilateral is a _____________.

Trapezium

400

Change this mixed number to an improper fraction:

3 4/7

25/7

500

1/2 ÷ 3/4

4/6 = 2/3

Formulas

100

 π = ?

3.14

200

Find the area of a Parallelogram... (WITH UNIT)

base = 5 in.

height = 7 in.

35 in²

300

Area of a Triangle

A = ½ bh

400

Circumference of a Circle

c = πd

500

Find the area of a circle...

diameter = 20 cm

314 cm²

Roots

100

√9

3

200

√1

1

300

6²

36

400

√81

9

500

√121

11

Triangles

100

A triangle with all equal sides is a _____________ triangle.

equilateral triangle

200

An obtuse angle is...

...an angle that measures more than 90 degrees.

300

What is scalene triangle is...

...a triangle with three sides of different lengths.

400

If one angle in a triangle is 20 degrees and another angle in the triangle is 40 degrees, what is the measure of the third angle?

120 degrees

500

If at least two of the three sids are equal in length, the triangle is a ____________ triangle.

isosceles