HOUSTON (KTRK) -- A mental math system developed in the 1800's is helping some local students ace standardized tests and win math competitions. But the method isn't taught in most Houston schools.
Add Yahoo as a preferred source to see more of our stories on Google. What is 29 + 14? Some readers may solve the problem procedurally: line up the two numbers, add the ones column, carry the one, and ...
Mental math shortcuts suggest future STEM performance—and gender is a significant predictor What is 29 + 14?
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