30 terms

redgemTEACHER

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