Open House

Integers

100

-3 + -10 = ?

-13

200

5 - 10 = ?

-5 

300

-8 x 9 = ?

-72

400

-36 ÷ -12 = ?

3

500

81 ÷ -9 + 17 = ?

8

Algebraic Expressions

100

10x +5x = ?

15x

200

6n - 7n - 4 + n = ?

-4

300

4(x + 7) = ?

4x + 7

400

2(x + 3) + (3x + 1) = ?

5x + 7

500

(9x + 5) - (6x - 8) = ?

3x +13

Equations and Inequalities

100

x - 2 = 1

x = 3

200

-2 = p + 1

p = -3

300

-32 = -4b

b = 8

400

-4w - 6 > 22

w < -7

500

12 < (t + 8)-2

t <-14

Proportions

100

Find the unit rate: 360 miles in 6 hours

60 miles in 1 hour

200

44 / p = 11 / 5

p = 20

300

41 / x = 5 / 2

x = 16. 4

400

x / 13 = 18 / 39

x = 6

500

6 / 25 = d / 30

d = 7.2

Geometry

100

What is the definition of an acute angle?

Less than a 90 degree angle.

200

If a right triangle has a 30 degree angle, then what is the missing angle? (Triangles add up to 180)

60 degrees

300

What is the supplementary angle of the angle 140 degrees. 

40 degrees

400

What is the circumference of the circle if the diameter is 10 meters? (C= pi x d )

d= 31.4 meters

500

What is the area of the circle if the radius is 12 cm?     ( A= pi x r² )

A = 453.16 cm²