Webmath

1. ## Webmath

yea i noticed in one of the old posts that someone was lookin for help with math problems, the post was closed but i wanted to help out because i know how frustrating working math can be here's a good link that will work math problems as well as teach you how to solve the problem step by step... http://school.discovery.com/homeworkhelp/webmath/
Webmath offers math homework help and math word problems at DiscoverySchool.com.

2. Math tricks:
1)i) Select a number (Z) from 1 to 9
ii) Then Z x 9 = Y
iii) Then Y x 12345679 = ZZZZZZZZZZ

Find why every number will result to this.

2)i) Select a two-digits number (ZY)
ii) Then ZY x 101 = ZYZY

Find why every numbers will result to this.

Both of this, i learnt them from school.

For question 1:
Take the case Z = i

y = 9i
9i *123456789 = ZZZZZZZZZZ
9 * 123456789 * i = ZZZZZZZZZZ
1111111111 * i = ZZZZZZZZZZ
iiiiiiiii = ZZZZZZZZZZ
resusbstitute i = Z
ZZZZZZZZZZ = ZZZZZZZZZZ

Question 2:
A bit harder to show
If you use long multiplication from high school you will get
101
* XY
-----
Y0Y
X0X0
------
XYXY