| A | B |
|---|
| distributive property | a number times the sum of two addends is equal to the sum of that same number times each individual addend |
| partial products | when multiplying using pen and paper, a product resulting from multiplying one factor times one digit of the other factor; product is the sum of shifted partial products |
| center | the point inside a circle from which all points on the circle are equally distant |
| circle | a closed, curved shape in which all points on the shape are the same distance from its center |
| circumference | the distance around a circle; the perimeter of a circle |
| diameter | the distance across a circle through its center |
| perimeter | the distance around a closed, flat shape |
| radius | the distance from the center of a circle to a point on the circle |
| regular polygon | a polygon in which all sides have equal lengths and all angles have equal measurements |
| certain | an event is certain when the probability is 1; the event will definitely occur |
| chance | a way of expressing the likelihood of an event; the probability of an event expressed as a percentage |
