Math Vocabulary

Fractions

100

Another name for 1/2

Half

200

Another name for 1/4

Quarter

300

The top number of a fraction

Numerator 

400

Equivalent fractions

Fractions that are the same size but use different numbers 

500

Least common multiple 

The multiple that two denominators of a fractions have in common

Operations

100

Operation to use when you see "how many more", "how many less", or "difference" in a word problem 

Subtraction 

200

Operation to use when use see "total", "all together", "sum", and "in all"

Addition 

300

Operation to use when "product", "times", "in all", "all together" and when you see groups in the problem

Multiplication 

400

The operation to use when you see "per", "each" and you see groups in a problem 

Division 

Shapes

100

Another name for flat shapes 

2D shapes

200

Another name for shapes with more than 2 sides 

3D Shapes

300

The formula for area

width X length 

400

The formula for perimeter 

side + side + side + side = perimeter

Place value

100

What place is the 8 in 831

hundreds

200

What place is the 1 in 832.31

Hundreths 

300

What place is the 2 in 825

tens

400

What place is the 7 in 935.71

Tenths