SSS 7/8 Math Review January

K-6 Geometry

100

What is the difference between 2D and 3D objects.

2D objects are flat

200

List 2 characteristics of a rhombus

4 equal sides 

Do not need right angles

300

Angles ABC and CBD are connected. Angle ABC measures 68 degrees. Angle CBD measures 35 degrees. What does angle ABD measure? 

103 degrees

400

What image do you get when you plot the following points?

(0,2)

(2,4)

(0,-2)

(-2,4)

A heart

500

Find the area of the image on the board 

38 in²

7th Geometry

100

A map has a key that indicates that every 2 inches on a map equals 12 feet. If two cities are 6 inches away on the map, how far away are they in real life? 

36 feet

200

What are the radius and area of a circle if the circumference is 44 cm and I know 22/7 was used for pi. 

Radius 7cm

Area: 154 square cm

300

Line AB intersects line CD at point M. Angle AMC measures 24 degrees. What to all the other angles measure? 

CMB: 156

BMD: 24

AMD: 156

400

A cube has an edge length of 7cm. What is the volume and surface area?

Volume 343 cubic cm

Surface Area: 294 squared cm

500

Choose a team

Dance Battle!

8th Geometry

100

A slide is positioned next to a pool. The pool is 4 ft away from the BOTTOM of the ladder. The slide is 5ft long. How tall is the ladder? 

HINT: There is a theorem you can use. 

A²+B²=C²

A²+4²=5²

A²+16=25

A²=9

A=3 ft

200

A party hat has a radius of 3in and a height of 9in. What is the volume? Use 3.14 for pi. 

V=(3.14)x 3²x(9/3)

V=(3.14)x9x3

V= 3.14x27

V=84.78in³

300

Figure ABCD is one third of figure EFGH. Find the points for EFGH if ABCD has the following points

A (-4,3)

B (-2,-5)

C (2,6)

D (1,-1)

E (-12,9)

F (-6,-15)

G (6,18)

H (3,-3)

400

Choose a team: 

Animal sounds

500

Rotate the following -90

Reflect it over the x=y axis

X (1, -1)

Y (2, 6)

Z (-2, -5)

X (1,1)

Y (2, -6)

Z (-2, 5)

The Number System

100

How do I know if a number is rational?

Rational numbers can be written as fractions. When written as decimals, they either end or final digits repeat. 

200

What are additive inverses?

Numbers with the same absolute values. When they are added, they equal 0. For example 1 + -1. 

300

Choose a team: 

Staring contest

400

Simplify 

(4a+2ab+5c)(2a -3b)

8a²+4a²b+10ac-12ab-2ab²-5cb

500

Solve for x: 

5x+2=3x-8

x=-5