Chapter 1


How do I add numbers?
 

Words to know:


add: To join together sets to find the total or sum.

addition number sentence: an expression using numbers and the + and = sign.

equals(=):the sign used to show having the same valueas or is the same as.

part: one of two parts joined to make the whole.

plus (+): the symbol used to show addition. 

sum: the answer to an addition problem.