3rd Grade

Question 0

Odd Numbers

Answer 0

numbers that have a 1, 3, 5, 7, or 9 in the one’s place

ex. 2167

Question 1

Even Numbers

Answer 1

numbers that have a 0, 2, 4, 6, or 8 in the one’s place

ex. 132

Question 2

Digit

Answer 2

a symbol used to make numbers

ex. 963

Question 3

Period

Answer 3

each group of 3 numbers separated by commas that are written in standard form

ex. 123,456

Question 4

Place Value

Answer 4

the value of a digit depending on its place in a number

ex. 9,876 –> 8 = hundreds = 800

Question 5

Multiple

Answer 5

the product of a given number and another whole number

Question 6

Standard Form

Answer 6

numbers that are expressed in numerical form

ex. 1968

Question 7

Written Form

Answer 7

numbers that are expressed in words

ex. one thousand nine hundred sixty-eight

Question 8

Expanded Form

Answer 8

writing a number to show the value of each digit

ex. 1000 + 900 + 60 + 8

Question 9

Compatible Numbers

Answer 9

numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally

Question 10

Estimate

Answer 10

a number close to an exact number

Question 11

Rounding

Answer 11

altering the digits in a number to perform an easier calculation

ex. 167 rounds to 170

Question 12

Fact Families

Answer 12

a collection of related addition and subtraction facts, or multiplication and division facts, made from the same numbers

Question 13

Sum

Answer 13

the answer to an addition problem

ex. 10 + 13 = 23 (sum)

Question 14

Difference

Answer 14

the answer to a subtraction problem

ex. 23 - 10 = 13 (difference)

Question 15

Subtraction

Answer 15

taking one number away from another

ex. 23 - 13 = 10

Question 16

Addition

Answer 16

finding the total by combining two or more numbers

ex. 10 + 13 = 23

Question 17

Perimeter

Answer 17

the distance around a shape

Question 18

Horizontal

Answer 18

going side to side like the horizon

Question 19

Vertical

Answer 19

going up and down like an elevator

Question 20

Diagonal

Answer 20

a straight line inside a shape that goes from one corner to another (but not an edge)

Question 21

Bar Graph

Answer 21

uses bars to show quantities or numbers so they can be easily compared

Question 22

Interval

Answer 22

the distance between two points

Question 23

Scale

Answer 23

a picture or symbol representing a quantity in a graph

Question 24

Array

Answer 24

a set of objects or numbers arranged in order, often in rows or columns

Question 25

Product

Answer 25

the answer to a multiplication problem

Question 26

Area Model

Answer 26

a model for multiplication problems, in which the length and width of a rectangle represents the product

Question 27

Quotient

Answer 27

the answer to a division problem

Question 28

Division

Answer 28

sharing or grouping a number in equal parts

Question 29

Multiplication

Answer 29

a number that is added to itself many times (repeated addition)

Question 30

Factors

Answer 30

numbers you can multiply together to get a product

Question 31

Fraction

Answer 31

naming part of a whole

Question 32

Equivalent Fraction

Answer 32

fractions which have the same value

Question 33

Numerator

Answer 33

the top number of a fraction

Question 34

Denominator

Answer 34

the bottom number of a fraction

Question 35

Fraction Bar

Answer 35

the line that separates the numerator and the denominator of a fraction