Asvab Math - Ldc

Front 1

INEQUALITIES

Back 1

Step 1: Isolate the variable

Add or Subtract to isolate the variable term

Step 2: Solve for the variable

Multiply or divide to solve for the variable

RULE: If multiplying or dividing by a negative number reverse the inequality symbol

Front 2

SIMPLIFYING EXPRESSIONS & ORDER OF OPERATIONS

Back 2

P = Parenthesis

E = Exponents

M = Multiplicationr

D = Division

A = Addition

S = Subtraction

Front 3

PYTHAGOREAN

THEOREM

Back 3

c^2 = a^2 + b^2

Front 4

FACTORIAL

EXPRESSIONS

Back 4

n!

Example:

7! = 7×6×5×4×3×2×1

Front 5

CIRCUMFERENCE

OF A CIRCLE

Back 5

C = 2¤r

Front 6

AREA

OF A CIRCLE

Back 6

A = ¤r^2

Front 7

DIAMETER

OF A CIRCLE

Back 7

d = 2r

Front 8

RADIUS

OF A CIRCLE

Back 8

r = d/2

Front 9

INTEREST

Back 9

I = Prt

I = Interest (cost of loan)

P = Principle (loan amount)

r = rate (interest rate)

t = time (length of loan)

Front 10

PERCENTAGES

Back 10

50% = 1/2 (divide by 2)

25% = 1/4 (divide by 4)

75% = 3/4 (find 25% and divide by 3)

10% = 1/10 (divide by 10)

20% = 1/5 (divide by 5 or double 10%)

5% = 1/20 (divide by 20 or half 10%)

1% = 1/100 (divide by 100)

Front 11

SPEED (velocity)

Back 11

V (speed) = d/t

Front 12

Pi

Back 12

3.14444....

Ratio of a circle's circumference to it's diameter

Front 13

PRIME FACTORS

Back 13

72

/ \

9 8

/ \ / \

3 3 2 4

/ \

2 2

Prime factors are 3 and 2

Front 14

RECIPROCAL

Back 14

Reciprocal of n is 1/n

Example:

Reciprocal of 3/4 is 4/3

Front 15

TYPES OF NUMBERS

Back 15

Front 16

EQUATION OF A LINE

Back 16

y = mx + b

m = slope = (y2 - y1) / (x2 - x1)