CCSS Grade 3 Math vocabulary

Area is...

• The total space taken up by a flat (2-D) surface or shape of an object.

• Measurement of sides of a flat (2-D) shape

Perimeter is...

• The total length of all the sides of an object

• The total space taken up by a flat (2-D) surface or shape of an object

Draw an array of 3 by 4

A column is

• The horizontal arrangement of objects, side by side, from left to right

• A vertical arrangement of objects, one above the other. (Columns go up and down)

Commutative property of addition means...

• Changing the order of addends does not change the sum

  example: 2+3=5

  and 3+2=5

• Changing the order of addends will change the sum

Commutative property of multiplication means...

• Changing the order of factor does not change the product

  example: 2X3=6

  and 3X2=6

• Changing the order of factors will change the product

What is a fraction?

Gram and kilogram are units to measure weight/mass of an object

• TRUE

• FALSE

Draw two equal groups

Liter and mililiter are used to measure the capacity of liquids

• TRUE

• FALSE