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Decimal Ops

Vocabulary Practice

estimate To find an approximate answer that is relatively close to an exact amount.
ratio A comparison of two quantities expressed with a phrase such as ‘the ratio of 3 to 5’ which means ‘3 for every 5.’ Such ratio comparisons are often written as common fractions and in the special notation 3 : 5. 35 3 to 5 3 : 5
unit rate A unit rate is a rate in which the second number (usually written as the denominator) is 1, or 1 of a quantity.
expanded form The form of an expression made up of sums or differences of terms, or products of factors of terms
dividend The name for the number into which you are dividing in a division problem. For example, 26.5 is the dividend in the problem 26.5 ÷ 4.
divisor A number that divides a given number leaving a zero remainder. For example, 5 is a divisor of 20 since 20÷5=4 has a remainder of 0. A divisor of a given number is also known as a factor of that number.
quotient The name for the answer to a division problem. For example, 6.625 is the quotient in the number sentence 26.5 ÷ 4 = 6.625.
repeating decimal A decimal with a pattern of a fixed number of digits that repeats forever, such as 0.3333333. . . and 0.73737373. . . .Repeating decimals are rational numbers.
terminating decimal A decimal that ends, or terminates, such as 0.5 or 0.125. Terminating decimals are rational numbers.
percent “Out of 100.” A percent is a special decimal fraction in which the denominator is 100. When we write 68%, we mean 68 out of 100, 68100 , or 0.68. We write the percent sign (%) after a number to indicate percent.
Created by: karmstrong