Numeracy

basic "number sense", comfort at manipulating numbers

Some limit it to Basic Arithmetic, others include Statistics, etc.

• as fuzzy as Literacy relates to Reading And Writing
• or defining Digital Literacy

http://en.wikipedia.org/wiki/Numeracy

Conrad Wolfram thinks we can go much further than you'd expect by letting the computer do the mechanical bits. (e.g. use Mathematica)

• Computer Based Math http://www.computerbasedmath.org/
• Feb'2013: Estonia will be the first country to make use of its revolutionary and widely praised rethink of math education in a project to build a new school statistics course.

Gary Stager resources https://inventtolearn.com/math/

• Turtle Art https://inventtolearn.com/turtleart/
• Constance Kamii