the number 100
number
Examples:
• There were about a hundred people at the party.
• He ran a hundred meters in under eleven seconds.
the number 1,000
number
Examples:
• Over a thousand people attended the concert.
• The painting is worth several thousand dollars.
the number equal to 1,000,000
number
Examples:
• The city has over a million residents.
• He won a million dollars in the lottery.
the number 1,000,000,000
number
Examples:
• The company is worth over a billion dollars.
• There are nearly eight billion people on Earth.
a group of twelve
noun
Examples:
• She bought a dozen eggs from the market.
• I've told you a dozen times already.
either of two equal parts that together make up a whole
noun
Examples:
• She ate half of the pizza.
• The first half of the movie was boring.
amounting to half of something
adjective
Examples:
• He spent half his life traveling.
• She drank half a glass of water.
one of four equal parts of something
noun
Examples:
• A quarter of the students failed the test.
• It's a quarter past three.
to divide something into four equal parts
verb
Examples:
• Quarter the apple and share it among the children.
• The chef quartered the chicken before roasting it.
consisting of two equal parts; twice as much
adjective
Examples:
• She ordered a double espresso.
• The room has a double bed.
to make or become twice as large or as many
verb
Examples:
• The company doubled its profits in one year.
• The population of the city doubled in a decade.
consisting of three parts or elements; three times as large
adjective
Examples:
• She ordered a triple espresso.
• The company saw triple growth in profits.
to make or become three times as large or as many
verb
Examples:
• The company tripled its revenue in three years.
• She tripled the recipe to feed the whole group.
one part in every hundred
noun
Examples:
• Sales increased by twenty percent.
• About sixty percent of the population voted.
a numerical quantity that represents a part of a whole, expressed with a numerator and denominator
noun
Examples:
• One half is a fraction written as 1 over 2.
• The students learned how to add fractions with different denominators.
a very small part or amount of something
noun
Examples:
• The new model costs only a fraction of what the original version did.
• She completed the task in a fraction of the time it normally takes.
a number expressed in the base-ten system, often including a decimal point to show fractions
noun
Examples:
• The price was listed as 9.99, a decimal representing nine dollars and ninety-nine cents.
• She converted the fraction one-half into the decimal 0.5.
the mathematical operation of finding the total of two or more numbers
noun
Examples:
• Children learn addition and subtraction in first grade.
• The addition of 15 and 27 gives 42.
the act of adding something to something else
noun
Examples:
• The addition of a new wing doubled the building's size.
• In addition to English, she speaks French.
the mathematical operation of taking one number away from another
noun
Examples:
• Children learn subtraction by counting back from a number.
• Subtraction is the inverse of addition.
the mathematical operation of adding a number to itself a specified number of times
noun
Examples:
• The teacher drilled the students on multiplication tables up to twelve.
• Multiplication is one of the four basic arithmetic operations taught in elementary school.
the mathematical operation of splitting a number into equal parts
noun
Examples:
• Division is the opposite of multiplication.
• The division of 20 by 4 equals 5.
the action of separating something into parts
noun
Examples:
• The division of the land was fair.
• There is a clear division between the two groups.
a section or branch of a larger organization
noun
Examples:
• She works in the marketing division.
• The army division was deployed overseas.
a mathematical statement that two expressions are equal; a situation involving various factors
noun
Examples:
• Solve the equation for the value of x.
• Cost is just one part of the equation when choosing a career.
to determine a number or answer using mathematics or careful reasoning
verb
Examples:
• She used a spreadsheet to calculate the total cost of the project.
• He calculated that they would arrive at the airport with an hour to spare.
comprising the whole number or amount
adjective
Examples:
• The total cost came to five hundred dollars.
• It was a total disaster.
the overall sum; the aggregate amount
noun
Examples:
• The total comes to a hundred dollars.
• A grand total of 500 people attended.
a number expressing the central value in a set of data; typical or ordinary
noun
Examples:
• The average temperature in July is 30 degrees.
• On average, people sleep about eight hours.
constituting the result obtained by adding together several amounts and then dividing by the number of amounts
adjective
Examples:
• The average student scores about 70%.
• She's of average height.