Addition, Subtraction, & Estimation

A number being added or joined together with another number(s).

• addend
• counting (natural) numbers
• sum
• fluency

Tags

CCSS.2.NBT.B.7

The set of positive numbers that begins at one and increases by one each time {1, 2, 3, ..., n}

• counting (natural) numbers
• sum
• fluency
• whole numbers

Tags

CCSS.2.MD.B.6

The total when two or more addends are joined.

• sum
• fluency
• whole numbers
• polygon

Tags

CCSS.6.NS.B.3

A person's understanding of numbers and are able to know there are 5 without counting them one by one.

• fluency
• whole numbers
• polygon
• difference

Tags

CCSS.1.NBT.A.1

The set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n}.

• whole numbers
• polygon
• difference
• equation

A closed figure with at least 3 sides and where all sides are straight (no curves).

• polygon
• difference
• equation
• compatible numbers

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

The remaining amount after the subtrahend has been subtracted from the minuend.

• difference
• equation
• compatible numbers
• consecutive

Tags

CCSS.7.NS.A.1C

A math statement composed of equivalent expressions separated by an equal sign.

• equation
• compatible numbers
• consecutive
• expression

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Numbers that are slightly adjusted to create groups of numbers that are easy to compute mentally.

• compatible numbers
• consecutive
• expression
• minuend

Tags

CCSS.1.OA.A.1

A pattern or sequence of numbers in order without interruption.

• consecutive
• expression
• minuend
• perimeter

Tags

CCSS.2.MD.B.6