Numerais De 0 A 100 Em Inglês

How to actually learn and use numbers in English

Most people overcomplicate this. You need to know how English handles the basics, the teens, the tens, and then the hyphenated compounds. There is no hidden trick to it. I ran into a problem a few years ago when I was helping a colleague prepare for a phone call with a London-based vendor. They gave me a contract value of £47,853 and I froze for a solid three seconds because I was mentally parsing it digit by digit instead of grouping by thousands. It sounds trivial, but that pause cost us about two minutes of awkward silence. Since then I just read numbers in groups of three from the left. It works every time.

Os numerais de 0 a 100 em inglês

The core set breaks down into three zones: the first twenty are their own words, the tens from twenty to ninety are their own words too, and everything in between uses a simple hyphen rule. 0–19:

zero, one, two, three, four, five, six, seven, eight, nine, ten eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen

20–90 (multiples of ten): twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety

21–99 (compound numbers): twenty-one, twenty-two, twenty-three ... through ninety-nine

The pattern is the same across the board. Take the tens word, add a hyphen, then add the ones digit. For example, forty-two, sixty-eight, ninety-five. The common mistake here is skipping the hyphen. Native speakers don't skip it in formal writing. Online chats might, but if you are filling out a form or reading a document, include it. Special cases and tricky spellings:

Forty is spelled without a "u." Not "fourty." That trips up a lot of people because the root is four, but the correct form is forty. Eighteen keeps the "teen" but drops the "t" from eight to avoid the double-t sound — eight + teen = eighteen. Everything else follows its expected root. When you hit 100, it is simply one hundred. From there you use "and" in British English but usually drop it in American English. So 101 is one hundred one in US English and one hundred and one in UK English. Both are correct depending on which variant you are working with.

I learned this distinction the hard way when reading a British property listing that said "a three-bedroom house at number 101." I initially thought they were talking about a building with 101 units. I had to re-read it twice. The phrasing matters even at this level. For practical purposes, here is how you combine larger numbers in the 1–100 range:

21 = twenty-one 45 = forty-five

78 = seventy-eight 99 = ninety-nine

Practice reading aloud. The rhythm helps more than you might expect. Say them in sequence: twenty-one, twenty-two, twenty-three. The muscle memory kicks in faster than you think. I usually have people say them backward from 50 to 0 just to make sure the pattern is locked in. It sounds silly but it exposes gaps quickly. One more thing nobody tells you. When numbers appear in real text, native speakers often approximate rather than state exact figures unless precision is required. "About forty-five minutes," "roughly sixty dollars." Knowing the exact numeral still matters for forms, contracts, and technical work, but in casual speech the approximation is extremely common. Don't be confused when someone says "mid-forties" instead of "forty-five."

If you want a printable reference, most ESL resource sites offer free PDFs. The British Council and Cambridge websites have clean versions. Alternatively, generate your own using any spreadsheet by filling column A with 0 through 100 and column B with the English equivalents. It takes about five minutes and gives you something you can customize. The main bottleneck I see with learners is overthinking the hyphenation. Just remember: hyphen between the tens and the ones, always. Twenty-five, not twenty five. The only exception is the standalone tens words and zero through nineteen.