“I avoid mental arithmetic because I tend to drop decimals, misremember the rules of algebra, and other heinous sins”
Fast and accurate arithmetic can trained with any number of software packages. Why not give it a try? I did and it worked for me.
“I avoid mental arithmetic because I tend to drop decimals, misremember the rules of algebra, and other heinous sins”
Fast and accurate arithmetic can trained with any number of software packages. Why not give it a try? I did and it worked for me.