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Math Vocab: Numbers and Operations - Base Ten
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Terms in this set (30)
Area Model
a model of multiplication that shows each place value product
Array
an arrangement of objects in rows and columns
Algorithm
a process or set of rules to be followed in calculations or other problem solving operations
Base-Ten Numerals
a system of numbers that is based in units of 10. This is the system commonly used
Compare
to describe whether numbers are less than, greater than, or equal to one another. Ex: 75 > 35
Concrete Models
an object that represents a number or math concept that is used to help understand the number or concept
Decimal
a number with one or more numbers to the right of the decimal point (tenths, hundredths, etc.). Ex: 0.75
Decimal Point
a dot separating the whole number from the fraction in decimal notation
Dividend
the number that is divided by another number
Divisor
the number that another number is divided by
Equation
a statement that two mathematical expressions are equal. Ex: 4 x 6 = 8 x 3
Expanded Form
a way to write number that shows the place value of each digit. Ex: 42.79 = 4 x 10 + 2 x 1 + 7 x (1/10) + 9 x (1/100)
Exponent
the number that tells how many equal factors there are
Expression
a variable or combination of variables, numbers, and symbols that represents a mathematical relationship. Ex: 9 + s
Hundredth
one part in a hundred. Equivalent to 1/100
Models
an object that stands for a number, represents an amount, or shows how a problem is solved
Multi-Digit Number
a number greater than 9 that has more than 1 digit. Ex: 382,907
Multiple
the product of a number and any whole number. Ex: Multiples of 8: 8, 16, 24, 32, 40, 48
Multiply
a process to find the total number of items made up of equal-sized groups
Number Name
words that stand for a number. Ex: 753 = seven hundred fifty-three
Place Value
the value of the place of a digit in a number
Power of Ten
using a base number of 10 with an exponent.
Product
the answer to a multiplication problem
Quotient
the answer in a division problem
Reasonableness
an answer that makes sense based on the problem that is being solved
Round
to find the nearest value of a number based on a given place value. Ex: 375 rounded to the nearest hundred is 400
Tenth
one part in a ten. Equivalent to 1/10
Thousandth
one part in a thousand. Equivalent to 1/1000
Whole Number
the numbers (0, 1, 2, 3, etc.). There is no fraction or decimal part of the number
Whole Number Exponent
a number that shows how many times a base number is multiplied by itself
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