Definition of math in English:



North American
  • [mass noun] Mathematics.

    ‘she teaches math and science’
    • ‘It's not giving the kids much of a break if everything has to teach them about tolerance or math.’
    • ‘He has also complained that they've kept him from teaching math to his fellow inmates.’
    • ‘During the day my mind was occupied with thoughts of math, literature, English, and history.’
    • ‘Do various science or math theories belong, at all, in the world of literary criticism?’
    • ‘If you can add and know the difference between a one and a zero, you can do binary math.’
    • ‘We had started some math and they took to it as quickly as they had words and letters.’
    • ‘In fact, it looked as though he had forgotten how to do math altogether.’
    • ‘At my hotel, a professor came every morning to teach math and reading skills to the workers.’
    • ‘I chuckle and look back to where my ancestors, several hundred years ago, began learning to do math.’
    • ‘It was the first time in my life that I understood why people are terrified of math.’
    • ‘It was laborious and tedious and horrible, but it got me interested in math.’
    • ‘This philosopher made a name for himself by using math to solve science hundreds of years ago.’
    • ‘This brings me to my next point, which is how highly treasured math and science are.’
    • ‘More undergraduates need to be motivated to specialize in math or the sciences.’
    • ‘You had to know the length of your title and then do some math to get you to the right place to start.’
    • ‘He always came top of the class in math so I thought he would be useful for once.’
    • ‘The math is dumbed down a bit as is necessary for a mass market book like this.’
    • ‘Also, it was said that the review recommended that math and physics come together a bit.’
    • ‘I think my sensibilities were running more towards arts and humanities than math and science.’
    • ‘Students in math know that the essence of the subject lies in theorems and proofs.’
    arithmetical problem, problem, calculation, reckoning, tally, question
    View synonyms


  • do the math

    • informal [often in imperative]Make a calculation or come to a conclusion based on the relevant facts and figures, typically with the implication that the result is or should be obvious.

      ‘diesel prices in my area are approximately 7% more than regular gas, but the mileage is over 20% greater—do the math’
      ‘did closing thirty beds hurt emergency waiting times? You do the math!’
      • ‘Spooner did the math, figured he would lose money on anything more than 3 cents a click, and declined the offer.’
      • ‘If you do the math, you can see it was hardly risky at all.’
      • ‘I did the math on cable once when I moved, and figured I'd be paying about $10 a show, so I never bothered to get it hooked up.’
      • ‘Because we've done the math on this before, we'll leave it alone and assume that the president is counting on a huge surge in revenues.’
      • ‘The whole thing's smelly already, I think the people can do the math, don't you?’
      • ‘Many companies pay lip service to the notion that employees are their most valuable assets, but few have actually done the math.’
      • ‘Six kids, one bathroom—you do the math.’
      • ‘So do the math before committing your college savings to a plan that's going to fritter away your tax benefits.’
      • ‘We got a couple hundred boxes per show, and we played 200 shows a year, so do the math!’
      • ‘Since the first film in this series was pretty bad, well, I think you can do the math.’


Mid 19th century: abbreviation.