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Vocabulary List 4, Vocabulary List 5, Vocabulary List 6 (TEST 5/15)
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Terms in this set (30)
equivalent decimals
Name the same amount. 0.9 is equivalent to 0.900. Adding zeros to the end of a decimal does not change the value.
rounding
replaces one number with another number that tells about how much or how many. Numbers are rounded to a multiple of 10, 100, 1,000, etc. Remember the rule: 5 or more raise the score; 4 or less let it rest.
factors
numbers that are multiplied to get a product. 1, 2, 3, 4, 6, 12 are factors of 12. 1 x 12 = 12. 2 x 6 = 12. 3 x 4 = 12.
estimate
an approximation rather than exact number; a rounded number.
least
The smallest number in a group of numbers
equivalent fractions
fractions that name the same amount of part
numerator
The top number in a fraction. Shows how many parts we have.
denominator
The bottom number in a fraction. Shows how many equal parts the item is divided into.
percent
a number out of 100
greatest
The largest number in a group of numbers
increase
to make or become larger; to add to
decrease
to become smaller or less; subtract
prime number
a whole number that has exactly two factors, 1 and itself.
composite number
a number with more than two factors
divisible
can be divided by a number without leaving a remainder
factor pair
Two whole numbers that are multiplied to get a product
improper fraction
a fraction whose numerator is larger than the denominator
mixed number
a number made up of a whole number and a fraction
area
Length x Width
The number of square units required to cover a surface.
perimeter
The distance around a figure, add all sides
multiple
The product of a whole number and any other whole number.
factor
a number that is multiplied by another number to find a product
product
the answer to a multiplication problem
greatest common factor
The largest factor that two or more numbers have in common.
least common multiple
The smallest multiple (other than zero) that two or more numbers have in common.
acute angle
An angle that measures less than 90 degrees but more than 0 degrees
right angle
an angle that measures 90 degrees
obtuse angle
An angle that measures more than 90 degrees but less than 180 degrees
common multiple
a number that is a multiple of two or more numbers
common factor
A number that is a factor of two or more numbers
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