Definition of math in English:



North American
  • Mathematics.

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

      ‘Did closing thirty beds hurt emergency waiting times? You do the math!’
      ‘diesel prices in my area are approximately 7% more than regular gas, but the mileage is over 20% greater—do the math’
      • ‘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.’
      • ‘The whole thing's smelly already, I think the people can do the math, don't you?’
      • ‘If you do the math, you can see it was hardly risky at all.’
      • ‘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.’
      • ‘Spooner did the math, figured he would lose money on anything more than 3 cents a click, and declined the offer.’
      • ‘Since the first film in this series was pretty bad, well, I think you can do the math.’
      • ‘We got a couple hundred boxes per show, and we played 200 shows a year, so do the math!’
      • ‘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.’
      • ‘Many companies pay lip service to the notion that employees are their most valuable assets, but few have actually done the math.’


Mid 19th century: abbreviation.