BCD (decimal math encoded in binary) still operates one column at a time and uses No tricks like estimation etc that Carnegie Math teaches. The...
Common Core and Carnegie Math are terrible, horrible teaching methods that reinvent the wheel and a child that Knows arithmetic and symbolic...
These are two-way rocker accesory power switches that provide fused electric power to up to 5 devices at a time, out of 10. The maximum total...
aint they power switches?
