Asked by Robin

please explaing reversing the digits. Find the product of 2 two digit numbers and reverse the digits and find the product. The products are the same. Does this happen with any pair of two-digit numbers? Eplain your thinking in solving this problem and include any mathematical work. Thank-you.
Answered by Damon
xy * wz = (10x + y)(10w+z)
=100xw+10xz+10yw+yz

yx * zw = (10y+x)(10z+w)
=100yz+10yw+10xz+xw

These can be the same but not usually
eg
12*21
Answered by Jaz
Thank-you Damon
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