Second Grade Math Vocabulary
Terms
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- A.M.
- Between midnight and noon
- add
- Find the total number when two or more groups are joined
- addend
- A number that is added to another number
- after
- Later
- array
- Objects in rows and columns
- bar graph
- Shows data as bars
- before
- Ahead of
- between
- Object with something next to it on each side
- calendar
- A table that shows days, weeks and months
- centimeter
- One hundredth of a meter
- cone
- A solid pointed figure that has a flat round base
- congruent figures
- Figures that have the same size and shape
- corner
- The place where two or more edges meet
- count back
- A way to find the difference
- count on
- A way to find the sum
- cube
- A solid figure with six congruent square faces
- cup
- A way to measure capacity
- cylinder
- A solid figure that is shaped like a can
- difference
- The answer to a subtraction problem
- digits
- Any one of the symbols 0,1,2,3,4,5,6,7,8,9
- dime
- A coin worth ten cents
- divide
- To separate into equal groups
- dollar
- Money worth one hundred cents
- doubles
- When both addends are the same number
- doubles plus one
- When one addend is one more than the other
- edge
- The line segment where two faces of a solid figure meet
- equal groups
- sets of objects with the same number and shape
- equal parts
- split a group of things into two or more sets that are the same
- equal sign
- A symbol used to show that two ampounts are the same
- estimate
- A number close to an exact amount
- even numbers
- A whole number that has 0,2,4,6, or 8 in the ones place
- face
- A flat surface of a solid figure
- fact family
- A set of related addition and subtraction number sentences
- flip
- A move that involves flipping a figure across a line
- foot
- A unit for measuring length or distance
- fractions
- Numbers that name part of a whole or part of a group
- gram
- A unit for measuring mass
- greater than
- A symbol used to compare two number with the greater number first
- half dollar
- A coin that is worth fifty cents
- half hour
- Thirty minutes
- hour
- Sixty Minutes
- hundred
- The number after 99 when you are counting
- hundreds
- Place value third digit left of the decimal
- inch
- A way of measuring distance or length
- less than
- Compares two numbers with the lesser number first
- line of symmetry
- An imaginary line that divides a figure into two congruent parts
- liter
- A unit for measuring capacity
- meter
- A unit for measuring length and distance
- minutes
- a minute is 60 seconds
- multiplication sentence
- The numbers that shows the total number in equal sized groups
- multiply
- When you combine equal groups
- nickel
- a coin worth five cents
- number sentences
- A sentence that includes numbers, operation symbols, and a sign
- odd numbers
- A whole number that has 1,3,5,7,or 9 in the ones place
- ones
- digit in the first space to the left of the decimal
- Order Property
- you can add two or more numbers in any order and get the same sum
- ordinal numbers
- A number that tells order or position
- ounce
- A unit for measuring weight
- oval
- A shape like a stretched circle
- P.M.
- Time between one minute after noon and midnight
- pattern
- a regular repeating way of arranging objects or numbers
- penny
- coin worth one cent
- perimeter
- The distance around a figure
- pictograph
- A graph that uses pictures to show information
- picture graph
- same as pictograph
- pint
- A unit for measuring capacity
- pound
- A unit for measuring weight
- product
- The answer to a multiplication problem
- pyramid
- A solid pointed figure with a flat base that is a polygon
- quart
- A unit for measuring capacity
- quarter
- a coin that is worth twenty-five cents
- rectangle
- A quadrilateral with two pairs of parallel sides, and four right angles
- rectangular prism
- A solid figure with six faces that are rectangles
- regroup
- To exchange amounts of equal value to rename a number
- round
- increase or decrease a number to the nearest 10,100 and so on.
- side
- a line that makes part of a shape
- skip-count
- counting by 2's, 3's, 4's and so on
- slide
- movement of a fgure to a new position without turning or flipping it
- sphere
- A solid figure that has the shape of a round ball
- square
- A quadrilateral with two pairs of parallel sides, four equal sides and four right angles
- subtract
- The process of dinding how many are left
- sum
- The answer to an addition problem
- table
- Words and numbers displayed in rows and columns
- tally marks
- lines in groups of five to make counting easier
- temperature
- A measure of how hot or cold something is
- tens
- digits that are two places to the left of the decimal
- triangle
- A polygon with three sides
- turn
- Move a figure to a new position by rotating the figure around a point
- Zero Property
- The product of zero and any number is zero