Cheat Sheet

Cheat Sheet

(Make sure to draw your rulers and protractors)

(Also write down ABCD and ABCDE before hand to save time during the test)



3:4:5 45:45:90 30:60:90

6 : 8 : 10 Longest side: multiply by 2 Longest side is twice the shortest

9 : 12 : 15 side

Shortest side: divide by 2

5 : 12 : 13 Middle side is the shortest side

8 : 15 : 17 times 3





2 2

x + 2xy + y = (x + y)

2 Even + Even = Even  Even =

2 2 2

Odd + Odd = Odd  Odd =

x – 2xy + y = (x – y) Even + Odd = Even  Odd =

2 2

x –y = (x – y)(x + y)





 An integer is divisible by 2 if its units digit is divisible by 2

 An integer is divisible by 3 if the sum of its digits is divisible by 3.

 An integer is divisible by 4 if its last two digits form a number divisible by 4.

 An integer is divisible by 5 if its units digit is either 0 or 5.

 An integer is divisible by 6 if it is divisible by both 2 and 3.

 An integer is divisible by 9 if the sum of its digits is divisible by 9.

 An integer is divisible by 10 if its units digit is 0.



2  1 .4 p1q1  p2q2  ptotal q1  q2  V  L W  H

3  1 .7

SA  2LW   2LH   2WH 

d  ( x2  x1 ) 2  ( y 2  y1 ) 2

I = prt

V = hr²

A=½bh

D=rt

1 1 1 4

  2 V= r³

t1 t 2 t total A= s 3 3

4

w1t1 wt

 2 2 S = 180(n – 2)

other other A = r²

x Length

difference C = 2r 

100 360 Circum

original

A = bh







Verbal 5th 10th 15th 20th 25th

22min left 18 13 8 4



Math 5th 10th 15th 20th 23th

33min left 26 18 11 7