Multiplication Tables "like you can breathe them"
"Is" means "equals".
"Per" means"divide".
A constant of one is omnipresent (factors, denominators, constants, exponents,...)
Anything times one is itself.
One is omnipresent (factors, denominators, constants, exponents,the Big One...)
Anything times zero is zero.
A factor of zero is always zero.
Anything divided by zero is undefined.
Common Fraction/Decimal Combinations
1/6 is about 0.167
1/5 is 0.2
1/4 is 0.25
1/3 is about 0.33
2/3 is about 0.67
3/4 is 0.75