FOIL

0

25 x 0 = (25)·(0) = (20 + 5)·(0 + )
= ( )x100 + 0x10 + 0x10 + 0 =
= ( )x100 + 0 + 0 + 0 = 0

5

1

2

3

4

5

6

7

8

9

10

1 of 50

FirstOuterInnerLast

Level

How Many

FOIL method @			Example >>>	34 x 52 = (30 + 4)·(50 + 2)

First	(A + B)·(C + D) = AC + AD + BC + BD			= 30 x 50	= 1500
Outer	(A + B)·(C + D) = AC + AD + BC + BD			= 30 x 2	= 60
Inner	(A + B)·(C + D) = AC + AD + BC + BD			= 4 x 50	= 200
Last	(A + B)·(C + D) = AC + AD + BC + BD			= 4 x 2	= 8

					= 1768