FOIL

2

37 x 25 = (37)·(25) = (30 + 7)·(20 + 5)
= 6x100 + ( )x10 + 14x10 + 35
= 600 + ( )x10 + 140 + 35 = 925

4

11

12

13

14

15

16

17

18

19

20

3 of 10

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